Hosted by China Automotive Technology and Research Center Co.,Ltd.(CATARC),the World Automobile Standards and Innovation Conference(WASIC)was jointly held by China Automotive Standardization Research Institute and CAT...Hosted by China Automotive Technology and Research Center Co.,Ltd.(CATARC),the World Automobile Standards and Innovation Conference(WASIC)was jointly held by China Automotive Standardization Research Institute and CATARC Technology Co.,Ltd.on October 27-29 in Shenzhen City,South China’s Guangdong Province.展开更多
To compare the suitable working conditions of polypropylene(PP)and polycaprolactam(PA6)materials in actual use in automobiles,the effects of different temperature aging and different reagents on the mechanical propert...To compare the suitable working conditions of polypropylene(PP)and polycaprolactam(PA6)materials in actual use in automobiles,the effects of different temperature aging and different reagents on the mechanical properties of the two materials,such as tensile,bending,compression,and impact were studied.The results indicate that the short⁃term low⁃temperature environment had no much effect on the mechanical properties of PP and PA6.After long⁃term thermal aging at 80℃,the strength of PP and PA6 increased while their toughness decreased.After short⁃term thermal aging at 120℃,PP strength decreases and toughness increases,while PA6 strength increases and toughness decreases.The soaking of glass water and car shampoo had no much effect on the mechanical properties of PP,but had a significant impact on the mechanical properties of PA6.With the increase of soaking time,the strength of PA6 significantly decreases and the toughness significantly increases.The soaking of 95#gasoline had no much effect on the mechanical properties of PA6,but has a significant impact on the mechanical properties of PP.After 720 h of soaking,the retention rates of the tensile strength,bending strength,and compressive strength of PP were all less than 80%,while the retention rate of the impact strength of the cantilever beam was 160.4%.展开更多
In this paper,the front axle of a certain model is taken as the research object,and the stress and deformation of the frontaxle under three typical working conditions are analyzed by finite element technology.Based on...In this paper,the front axle of a certain model is taken as the research object,and the stress and deformation of the frontaxle under three typical working conditions are analyzed by finite element technology.Based on the simulation results,the 3D model of the front axle was optimized,and the finite element analysis of the optimized structure of the front axle under three typical working conditions was carried out to verify the correctness of the model.Finally,the fatigue tool module of ANSYS Workbench was used to analyze the fatigue life of the front axle under the optimized emergency conditions,and the feasibility of the model was verified.The analysis data shows that the design of the front axle components still has a lot of potential for lightweighting,and the weight of the front axle can be reduced by 6.73%through optimization,and the performance of the front axle can also meet the needs of use.The research conclusionhas a certain reference value for the lightweight design of automobile front axle.展开更多
At present,as China vigorously develops new energy automobiles,the social demand for related talents has increased significantly,so the relevant institutions need to optimize and adjust the talent training mode to hel...At present,as China vigorously develops new energy automobiles,the social demand for related talents has increased significantly,so the relevant institutions need to optimize and adjust the talent training mode to help the development of new energy automobiles.This paper summarizes the existing problems of China’s new energy automobile talent training mode,and analyzes the significance of the virtual simulation-based dual-creation talent training mode of new energy automobile and its specific implementation strategies,in order to provide references for the relevant personnel.展开更多
This work involves an experimental study on the performance of automobile air-conditioning systems by adding Al_(2)O_(3)nanoparticles to oil compressors to investigate their impacts on the enhancement of the speed coo...This work involves an experimental study on the performance of automobile air-conditioning systems by adding Al_(2)O_(3)nanoparticles to oil compressors to investigate their impacts on the enhancement of the speed cooling of refrigeration systems and to compare it with the system operated using only oil.The Al_(2)O_(3)nanoparticles have been added to the oil compressor for different ranges ofmass concentration(Ф=0.1%,Ф=0.15%andФ=0.2%).The stability of Al_(2)O_(3)nanoparticles has been tested by direct observation for different time periods.The results indicated that the air conditioning systemthat operated by using Al_(2)O_(3)-oil was better than the system that operated with pure oil.ForФ=0.2%,the results indicated that the cooling speed and the efficiency of the system operated with Al_(2)O_(3)-oil are increased by 13%and 18%,respectively,as compared to the pure oil system.This study shows that the thermos-physical properties of refrigerant oil are enhanced by 15%whenФis increased.展开更多
The 2024 World Automobile Standards and Innovation Conference(WASIC) convened on October22-24 in Pingshan district,Shenzhen city,South China's Guangdong province.The conference was themed "Leading with greenn...The 2024 World Automobile Standards and Innovation Conference(WASIC) convened on October22-24 in Pingshan district,Shenzhen city,South China's Guangdong province.The conference was themed "Leading with greenness,low carbon,digitalization,and intelligence,standards empowering sustainable development of the automobile industry".It focused on the hot issues of the automobile industry at home and abroad,gathering representatives of international standards organizations from 20countries and regions around the world.展开更多
Background: Automobile mechanics face different occupational hazards, which can have a wide range of physical and biological impacts depending on the frequency, intensity, and length of exposure. This study looked at ...Background: Automobile mechanics face different occupational hazards, which can have a wide range of physical and biological impacts depending on the frequency, intensity, and length of exposure. This study looked at the dangers and hazards that automobile mechanics in Kugbo Mechanic village in the Federal Capital Territory of Nigeria faced in their jobs. Research Objectives: The specific objectives were to determine the typical occupational risks faced by Kugbo automobile mechanics, evaluate the degree and risk of related health problems and injuries among Kugbo mechanics workers, examine the application of PPE and additional safety precautions among Kugbo mechanics, and assess Kugbo automobile workers’ understanding of the consequences of operating without PPE. Methods: A cross-sectional descriptive survey was conducted using purposeful sampling. A validated structured questionnaire was administered to 200 automobile workers at risk of exposure to hazards. The questionnaire covered socio-demographics, types of risk exposure, perceptions of their vulnerability, and the use of personal protective equipment. The data was analysed using descriptive and inferential statistics in Statistical Packages for Social version 26. Cross tabulation was used to identify patterns and associations between variables, and the Relative importance Index method was used to determine the relative importance of adherence to PPE and other safety issues. Results: Findings show that 5.1% of the respondents had completed secondary school, 25.3% had attended a technical school, 36.9% had completed primary school, and 32.8% had no formal education. Long exposure makes automobile workers more vulnerable to illnesses attributed to their job, as 91.9% work long hours sitting and 78.3% work long hours standing. The overall mean score of 3.72 shows that most respondents did not agree that automobile workers wear PPEs and follow other safety precautions. The medical issues listed include burns on the body, depression, heart illness, severe headaches and abdominal pain, and poor vision. Conclusion: The findings reveal that automobile workers are exposed to several risks and hazards that have resulted in various health-related problems. Therefore, using PPEs and adhering to occupational safety practices will mitigate their exposure to workplace hazards.展开更多
“Europe has missed this development opportunity because we are short of a long-term vision.”MORE than 40 exhibitors from 15 major vehicle brands around the world,representing the latest cutting-edge technologies and...“Europe has missed this development opportunity because we are short of a long-term vision.”MORE than 40 exhibitors from 15 major vehicle brands around the world,representing the latest cutting-edge technologies and models,gathered at the seventh China International Import Expo(CIIE),which was held in Shanghai from November 5 to 10.展开更多
The automobile logo is an integral part of the visual image system of an automobile enterprise brand,which utilizes graphics,symbols,words,and so on to convey enterprise information to consumers,record the enterprise...The automobile logo is an integral part of the visual image system of an automobile enterprise brand,which utilizes graphics,symbols,words,and so on to convey enterprise information to consumers,record the enterprise’s development history,help consumers understand the enterprise culture,distinguish different brands,and choose the product that meets their own needs from a large number of automobile brands.The article first introduces the theory of Gestalt psychology and related basic principles,then analyzes the characteristics of logo design,and finally puts forward the design countermeasures of Chinese automobile logos in combination with the Gestalt theory.In this way,it explores how to create the visual image of Chinese automobile brands’logo design in the context of market competition and the era of informationization.The study found a close correlation between Gestalt theory and automobile logo design.The related theories of Gestalt theory can help improve the level of automobile logo design and optimize the overall visual image design.The two are interconnected and develop together.It is hoped that this study will give some thoughts and references to the future design of Chinese automobile logos.展开更多
To enhance the management level and quality of the automobile transportation logistics supply chain and promote innovation and development in automobile transportation logistics enterprises,it is essential to strength...To enhance the management level and quality of the automobile transportation logistics supply chain and promote innovation and development in automobile transportation logistics enterprises,it is essential to strengthen the construction of the automobile transportation logistics supply chain management model.This can be achieved through the gradual improvement of the automobile transportation logistics management process,ensuring that the management of the automobile transportation logistics supply chain proceeds in an orderly manner.The aim is to improve automobile transportation and logistics service levels while meeting the changing market supply needs.This will enable automobile transportation and logistics enterprises to maintain steady economic benefits and enhance their core competitiveness in the market.Therefore,this paper has conducted a comprehensive exploration and research on managing the automobile transportation logistics supply chain.Corresponding management strategies are proposed as a starting point to achieve the aforementioned goals.展开更多
The automobile suspension parts of a high strength 6xxx aluminum alloy were produced using a novel technique known as near net shape casting for forging stock preparation. Based on the outline dimension of the forging...The automobile suspension parts of a high strength 6xxx aluminum alloy were produced using a novel technique known as near net shape casting for forging stock preparation. Based on the outline dimension of the forging stock, the shape of the ingot was designed as the near net shape and its casting process was studied by the numerical simulation and experimental investigation. The results show that the shrinkage of the ingot was highly correlated to its shape parameters and could be successfully forecast by the stimulation model. The casting parameters of the near net shape ingot were optimized and the near net shape 6xxx aluminum alloy ingots free of defects were cast in the laboratory. In order to obtain high performance forged suspension parts, the hot compression tests of the ingot were carried out. The results show that the subgrain fraction of the forged ingot was strongly affected by Zener-Hollomon parameters （Z parameters）. The intermediate Z parameters, 1.09×10^16 s^-1, will contribute to the larger number fraction of subgrains inside the forged ingot, which contributes to the high performance of the forged products.展开更多
The paper starts with a brief overview to the necessity of sheet metal forming simulation and the complexity of automobile panel forming, then leads to finite element analysis (FEA) which is a powerful simulation too...The paper starts with a brief overview to the necessity of sheet metal forming simulation and the complexity of automobile panel forming, then leads to finite element analysis (FEA) which is a powerful simulation tool for analyzing complex three-dimensional sheet metal forming problems. The theory and features of the dynamic explicit finite element methods are introduced and the available various commercial finite element method codes used for sheet metal forming simulation in the world are discussed,and the civil and international status quo of automobile panel simulation as well. The front door outer panel of one certain new automobile is regarded as one example that the dynamic explicit FEM code Dynaform is used for the simulation of the front door outer panel forming process. Process defects such as ruptures are predicted. The improving methods can be given according to the simulation results. Foreground of sheet metal forming simulation is outlined.展开更多
Increasing energy consumption in the transportation sector results in challenging greenhouse gas(GHG)emissions and environmental problems.This paper involved integrated assessments on GHG emissions and emergy of the l...Increasing energy consumption in the transportation sector results in challenging greenhouse gas(GHG)emissions and environmental problems.This paper involved integrated assessments on GHG emissions and emergy of the life cycle for the internal combustion engine(ICE)and electric automobiles in the USA over the entire assumed fifteen-year lifetime.The hotspots of GHG emissions as well as emergy indices for the major processes of automobile life cycle within the defined system boundaries have been investigated.The potential strategies for reducing GHG emissions and emergy in the life cycle of both ICE and electric automobiles were further proposed.Based on the current results,the total GHG emissions from the life cycle of ICE automobiles are 4.48 E+07 kg CO2-e which is320 times higher than that of the electric automobiles.The hotspot area of the GHG emissions from ICE and electric automobiles are operation phase and manufacturing process,respectively.Interesting results were observed that comparable total emergy of the ICE automobiles and electric automobiles have been calculated which were 1.54 E+17 and 2.20 E+17 sej,respectively.Analysis on emergy index evidenced a better environmental sustainability of electric automobiles than ICE automobiles over the life cycle due to its higher ESI.To the authors’knowledge,it is the first time to integrate the analysis of GHG emissions together with emergy in industrial area of automobile engineering.It is expected that the integration of emergy and GHG emissions analysis may provide a comprehensive perspective on eco-industrial sustainability of automobile engineering.展开更多
An automobile test controlling and managing system with computer network is introduced. The architecture of the local network, hardware structure, software structure, design of the test process, and error tolerating r...An automobile test controlling and managing system with computer network is introduced. The architecture of the local network, hardware structure, software structure, design of the test process, and error tolerating redundant design in work position substituting are presented. At last, the pivotal questions solved are discussed. With an advanced structure, this system is multi functional and flexible. Furthermore, advanced computer technology is adopted to improve its technical degree.展开更多
To realize automatic control of automobile transmission performance test stand Methods The automatic control technique of the lubricant temperature,the program- controll- edautomaticshifting of the transmission,the c...To realize automatic control of automobile transmission performance test stand Methods The automatic control technique of the lubricant temperature,the program- controll- edautomaticshifting of the transmission,the continuous adjusting of revolution speed and load, data-acquisition and data real-time processing were adopted.Results The lubricant temperature was controlled at the set temperature ±2℃.The automatic shifting of the trans- mission is simple,reliable and accurate.The automatic adjusting of load and rotation speed is rapidandaccurate,the torque divergence is ±1N·m,the rotation speed divergence is ±5r/min Conclusion The four kinds of techniques are applied into the automobile transmission perfor- mance test stand successfully. mancetest stand successfully.展开更多
With the steady growth of the Chinese economy,more and more countries are focusing on China.A great number of brands are entering the Chinese market and auto brand is one of them.Brand translation plays an important r...With the steady growth of the Chinese economy,more and more countries are focusing on China.A great number of brands are entering the Chinese market and auto brand is one of them.Brand translation plays an important role for success of opening international market.This paper applies the Skopos theory to automobile brand translation,so as to provide a new angle to translation practice.展开更多
In view of the problems in teaching of automobile English in our college, it discusses these problems and gives some proposals from four aspects: to stimulate students' interest and initiative, to select reasonabl...In view of the problems in teaching of automobile English in our college, it discusses these problems and gives some proposals from four aspects: to stimulate students' interest and initiative, to select reasonable teaching materials, to improve teaching methods and means and to enhance the comprehensive qualities of teachers.展开更多
With the gradual increase of car ownership in China and the continuous expansion of travel radius,traffic accidents caused by car safety are also increasing.As far as automobile safety itself is concerned,its evaluati...With the gradual increase of car ownership in China and the continuous expansion of travel radius,traffic accidents caused by car safety are also increasing.As far as automobile safety itself is concerned,its evaluation method is constantly evolving,but the safety of automobile textiles,which is an important part of it,is still in its infancy.The article starts from the factors that affect the safety performance of automobiles such as automobile safety theory,vehicle ergonomics and automobile textile performance.Then,the methods of expert investigation,analytic hierarchy process,fuzzy comprehensive evaluation and data analysis are used.In this way,we obtain a grade set for a multi-level index system and determine the weight of each index.Finally,we establish a comprehensive evaluation system for safety of the automobile textiles and select parameters under extreme conditions to verify the system,which proves to be effective and feasible.展开更多
Developing countries are encouraged to pursue environmental protection and industrial development simultaneously,although it is a big challenge to reach win-win situation.This study explored the relationshipbetween en...Developing countries are encouraged to pursue environmental protection and industrial development simultaneously,although it is a big challenge to reach win-win situation.This study explored the relationshipbetween environmental regulations and the industry enhancement in developing countries through conducting an empirical analysis of the impact of environmental regulationson Chinese automobile industry.In the empirical analysis,a total of64Chinese automobile enterprises were investigated,the Malmquist index of total factor productivity was adopted to determine the productivity of Chinese automobiles,and the two-step system Generalised Method of Moments(GMM)estimation was used for the regressionanalysis.The resultsshowedthat environmental regulations negatively affected the productivity and technology of Chinese automobile industry during 2004-2018.The production costof automobile industry in China was rising sharply,and the productivity and technological progress of Chinese automobile industry were impeded significantly.The case of Chinese automobile industry illustrated that strict environmental requirements can negatively impact industry productivity by increasing production costs and squeezing industry profits.展开更多
Turkey has given importance to the development of the automobile industry since the Ottoman period.While the Ottomans,who were aware of the development process of the automobile industry in the world,provided transpor...Turkey has given importance to the development of the automobile industry since the Ottoman period.While the Ottomans,who were aware of the development process of the automobile industry in the world,provided transportation by horse-drawn carriage,they thought of importing automobiles for the Sultan and high-level bureaucrats in an effort to switch to automobile transportation.However,after the proclamation of the Republic,automobile production started,just like airplanes.While a factory was established for the production of a domestic aircraft,the first automobile production facility was established in Istanbul in 1929 by the American Ford company.This factory was closed after a short time due to the world economic crisis.After the activities of the Kayseri Aircraft Factory,which lasted until 1948,came to an end,this time,Revolution car prototypes could be manufactured completely domestically in 1961.After the project,which did not go into mass production,the KoçGroup started to produce the domestically-made Anadol car with technology transfer from multiple sources in 1967,but the production of Anadol continued until 1984.In 1971,Renault cars started to be produced under the French Renault license,and TOFAŞcars under the Italian FIAT license.Towards the end of the 1970s,creative imitation applications were made in TOFAŞcars with the bird series.In the 1990s,the production of Japanese Honda and Toyota and South Korean Hyundai cars started.In 2011,the idea of producing a domestic automobile emerged,the Devrim automobile was taken as an example in this project,the first Togg prototype was manufactured with technology transfer from multiple sources in December 2018,and it was announced that mass production would begin in March 2023.The 12-year period from 2011 to 2023 is too long for the creation of a domestic automobile.It has been understood that this long process has been passed in order to regain the pre-1980 level of technological ability.However,the most important thing is the transition from the creative imitation stage to the innovation stage.Our wish is that this process can be shortened with phase skipping approaches.展开更多
文摘Hosted by China Automotive Technology and Research Center Co.,Ltd.(CATARC),the World Automobile Standards and Innovation Conference(WASIC)was jointly held by China Automotive Standardization Research Institute and CATARC Technology Co.,Ltd.on October 27-29 in Shenzhen City,South China’s Guangdong Province.
文摘To compare the suitable working conditions of polypropylene(PP)and polycaprolactam(PA6)materials in actual use in automobiles,the effects of different temperature aging and different reagents on the mechanical properties of the two materials,such as tensile,bending,compression,and impact were studied.The results indicate that the short⁃term low⁃temperature environment had no much effect on the mechanical properties of PP and PA6.After long⁃term thermal aging at 80℃,the strength of PP and PA6 increased while their toughness decreased.After short⁃term thermal aging at 120℃,PP strength decreases and toughness increases,while PA6 strength increases and toughness decreases.The soaking of glass water and car shampoo had no much effect on the mechanical properties of PP,but had a significant impact on the mechanical properties of PA6.With the increase of soaking time,the strength of PA6 significantly decreases and the toughness significantly increases.The soaking of 95#gasoline had no much effect on the mechanical properties of PA6,but has a significant impact on the mechanical properties of PP.After 720 h of soaking,the retention rates of the tensile strength,bending strength,and compressive strength of PP were all less than 80%,while the retention rate of the impact strength of the cantilever beam was 160.4%.
文摘In this paper,the front axle of a certain model is taken as the research object,and the stress and deformation of the frontaxle under three typical working conditions are analyzed by finite element technology.Based on the simulation results,the 3D model of the front axle was optimized,and the finite element analysis of the optimized structure of the front axle under three typical working conditions was carried out to verify the correctness of the model.Finally,the fatigue tool module of ANSYS Workbench was used to analyze the fatigue life of the front axle under the optimized emergency conditions,and the feasibility of the model was verified.The analysis data shows that the design of the front axle components still has a lot of potential for lightweighting,and the weight of the front axle can be reduced by 6.73%through optimization,and the performance of the front axle can also meet the needs of use.The research conclusionhas a certain reference value for the lightweight design of automobile front axle.
文摘At present,as China vigorously develops new energy automobiles,the social demand for related talents has increased significantly,so the relevant institutions need to optimize and adjust the talent training mode to help the development of new energy automobiles.This paper summarizes the existing problems of China’s new energy automobile talent training mode,and analyzes the significance of the virtual simulation-based dual-creation talent training mode of new energy automobile and its specific implementation strategies,in order to provide references for the relevant personnel.
文摘This work involves an experimental study on the performance of automobile air-conditioning systems by adding Al_(2)O_(3)nanoparticles to oil compressors to investigate their impacts on the enhancement of the speed cooling of refrigeration systems and to compare it with the system operated using only oil.The Al_(2)O_(3)nanoparticles have been added to the oil compressor for different ranges ofmass concentration(Ф=0.1%,Ф=0.15%andФ=0.2%).The stability of Al_(2)O_(3)nanoparticles has been tested by direct observation for different time periods.The results indicated that the air conditioning systemthat operated by using Al_(2)O_(3)-oil was better than the system that operated with pure oil.ForФ=0.2%,the results indicated that the cooling speed and the efficiency of the system operated with Al_(2)O_(3)-oil are increased by 13%and 18%,respectively,as compared to the pure oil system.This study shows that the thermos-physical properties of refrigerant oil are enhanced by 15%whenФis increased.
文摘The 2024 World Automobile Standards and Innovation Conference(WASIC) convened on October22-24 in Pingshan district,Shenzhen city,South China's Guangdong province.The conference was themed "Leading with greenness,low carbon,digitalization,and intelligence,standards empowering sustainable development of the automobile industry".It focused on the hot issues of the automobile industry at home and abroad,gathering representatives of international standards organizations from 20countries and regions around the world.
文摘Background: Automobile mechanics face different occupational hazards, which can have a wide range of physical and biological impacts depending on the frequency, intensity, and length of exposure. This study looked at the dangers and hazards that automobile mechanics in Kugbo Mechanic village in the Federal Capital Territory of Nigeria faced in their jobs. Research Objectives: The specific objectives were to determine the typical occupational risks faced by Kugbo automobile mechanics, evaluate the degree and risk of related health problems and injuries among Kugbo mechanics workers, examine the application of PPE and additional safety precautions among Kugbo mechanics, and assess Kugbo automobile workers’ understanding of the consequences of operating without PPE. Methods: A cross-sectional descriptive survey was conducted using purposeful sampling. A validated structured questionnaire was administered to 200 automobile workers at risk of exposure to hazards. The questionnaire covered socio-demographics, types of risk exposure, perceptions of their vulnerability, and the use of personal protective equipment. The data was analysed using descriptive and inferential statistics in Statistical Packages for Social version 26. Cross tabulation was used to identify patterns and associations between variables, and the Relative importance Index method was used to determine the relative importance of adherence to PPE and other safety issues. Results: Findings show that 5.1% of the respondents had completed secondary school, 25.3% had attended a technical school, 36.9% had completed primary school, and 32.8% had no formal education. Long exposure makes automobile workers more vulnerable to illnesses attributed to their job, as 91.9% work long hours sitting and 78.3% work long hours standing. The overall mean score of 3.72 shows that most respondents did not agree that automobile workers wear PPEs and follow other safety precautions. The medical issues listed include burns on the body, depression, heart illness, severe headaches and abdominal pain, and poor vision. Conclusion: The findings reveal that automobile workers are exposed to several risks and hazards that have resulted in various health-related problems. Therefore, using PPEs and adhering to occupational safety practices will mitigate their exposure to workplace hazards.
文摘“Europe has missed this development opportunity because we are short of a long-term vision.”MORE than 40 exhibitors from 15 major vehicle brands around the world,representing the latest cutting-edge technologies and models,gathered at the seventh China International Import Expo(CIIE),which was held in Shanghai from November 5 to 10.
文摘The automobile logo is an integral part of the visual image system of an automobile enterprise brand,which utilizes graphics,symbols,words,and so on to convey enterprise information to consumers,record the enterprise’s development history,help consumers understand the enterprise culture,distinguish different brands,and choose the product that meets their own needs from a large number of automobile brands.The article first introduces the theory of Gestalt psychology and related basic principles,then analyzes the characteristics of logo design,and finally puts forward the design countermeasures of Chinese automobile logos in combination with the Gestalt theory.In this way,it explores how to create the visual image of Chinese automobile brands’logo design in the context of market competition and the era of informationization.The study found a close correlation between Gestalt theory and automobile logo design.The related theories of Gestalt theory can help improve the level of automobile logo design and optimize the overall visual image design.The two are interconnected and develop together.It is hoped that this study will give some thoughts and references to the future design of Chinese automobile logos.
文摘To enhance the management level and quality of the automobile transportation logistics supply chain and promote innovation and development in automobile transportation logistics enterprises,it is essential to strengthen the construction of the automobile transportation logistics supply chain management model.This can be achieved through the gradual improvement of the automobile transportation logistics management process,ensuring that the management of the automobile transportation logistics supply chain proceeds in an orderly manner.The aim is to improve automobile transportation and logistics service levels while meeting the changing market supply needs.This will enable automobile transportation and logistics enterprises to maintain steady economic benefits and enhance their core competitiveness in the market.Therefore,this paper has conducted a comprehensive exploration and research on managing the automobile transportation logistics supply chain.Corresponding management strategies are proposed as a starting point to achieve the aforementioned goals.
文摘The automobile suspension parts of a high strength 6xxx aluminum alloy were produced using a novel technique known as near net shape casting for forging stock preparation. Based on the outline dimension of the forging stock, the shape of the ingot was designed as the near net shape and its casting process was studied by the numerical simulation and experimental investigation. The results show that the shrinkage of the ingot was highly correlated to its shape parameters and could be successfully forecast by the stimulation model. The casting parameters of the near net shape ingot were optimized and the near net shape 6xxx aluminum alloy ingots free of defects were cast in the laboratory. In order to obtain high performance forged suspension parts, the hot compression tests of the ingot were carried out. The results show that the subgrain fraction of the forged ingot was strongly affected by Zener-Hollomon parameters （Z parameters）. The intermediate Z parameters, 1.09×10^16 s^-1, will contribute to the larger number fraction of subgrains inside the forged ingot, which contributes to the high performance of the forged products.
文摘The paper starts with a brief overview to the necessity of sheet metal forming simulation and the complexity of automobile panel forming, then leads to finite element analysis (FEA) which is a powerful simulation tool for analyzing complex three-dimensional sheet metal forming problems. The theory and features of the dynamic explicit finite element methods are introduced and the available various commercial finite element method codes used for sheet metal forming simulation in the world are discussed,and the civil and international status quo of automobile panel simulation as well. The front door outer panel of one certain new automobile is regarded as one example that the dynamic explicit FEM code Dynaform is used for the simulation of the front door outer panel forming process. Process defects such as ruptures are predicted. The improving methods can be given according to the simulation results. Foreground of sheet metal forming simulation is outlined.
基金financially supported by National Natural Science Foundation for Young Scientists of China(Grant No.51608531)
文摘Increasing energy consumption in the transportation sector results in challenging greenhouse gas(GHG)emissions and environmental problems.This paper involved integrated assessments on GHG emissions and emergy of the life cycle for the internal combustion engine(ICE)and electric automobiles in the USA over the entire assumed fifteen-year lifetime.The hotspots of GHG emissions as well as emergy indices for the major processes of automobile life cycle within the defined system boundaries have been investigated.The potential strategies for reducing GHG emissions and emergy in the life cycle of both ICE and electric automobiles were further proposed.Based on the current results,the total GHG emissions from the life cycle of ICE automobiles are 4.48 E+07 kg CO2-e which is320 times higher than that of the electric automobiles.The hotspot area of the GHG emissions from ICE and electric automobiles are operation phase and manufacturing process,respectively.Interesting results were observed that comparable total emergy of the ICE automobiles and electric automobiles have been calculated which were 1.54 E+17 and 2.20 E+17 sej,respectively.Analysis on emergy index evidenced a better environmental sustainability of electric automobiles than ICE automobiles over the life cycle due to its higher ESI.To the authors’knowledge,it is the first time to integrate the analysis of GHG emissions together with emergy in industrial area of automobile engineering.It is expected that the integration of emergy and GHG emissions analysis may provide a comprehensive perspective on eco-industrial sustainability of automobile engineering.
文摘An automobile test controlling and managing system with computer network is introduced. The architecture of the local network, hardware structure, software structure, design of the test process, and error tolerating redundant design in work position substituting are presented. At last, the pivotal questions solved are discussed. With an advanced structure, this system is multi functional and flexible. Furthermore, advanced computer technology is adopted to improve its technical degree.
文摘To realize automatic control of automobile transmission performance test stand Methods The automatic control technique of the lubricant temperature,the program- controll- edautomaticshifting of the transmission,the continuous adjusting of revolution speed and load, data-acquisition and data real-time processing were adopted.Results The lubricant temperature was controlled at the set temperature ±2℃.The automatic shifting of the trans- mission is simple,reliable and accurate.The automatic adjusting of load and rotation speed is rapidandaccurate,the torque divergence is ±1N·m,the rotation speed divergence is ±5r/min Conclusion The four kinds of techniques are applied into the automobile transmission perfor- mance test stand successfully. mancetest stand successfully.
文摘With the steady growth of the Chinese economy,more and more countries are focusing on China.A great number of brands are entering the Chinese market and auto brand is one of them.Brand translation plays an important role for success of opening international market.This paper applies the Skopos theory to automobile brand translation,so as to provide a new angle to translation practice.
文摘In view of the problems in teaching of automobile English in our college, it discusses these problems and gives some proposals from four aspects: to stimulate students' interest and initiative, to select reasonable teaching materials, to improve teaching methods and means and to enhance the comprehensive qualities of teachers.
基金National Natural Science Foundation of China(No.11804049)Fundamental Research Funds for the Central Universities,China(No.2232020G-01)+1 种基金Fundamental Research Funds for the Central Universities,China(No.2232019D3-14)Shanghai Technical Standards Projects,China(No.18DZ2205900)。
文摘With the gradual increase of car ownership in China and the continuous expansion of travel radius,traffic accidents caused by car safety are also increasing.As far as automobile safety itself is concerned,its evaluation method is constantly evolving,but the safety of automobile textiles,which is an important part of it,is still in its infancy.The article starts from the factors that affect the safety performance of automobiles such as automobile safety theory,vehicle ergonomics and automobile textile performance.Then,the methods of expert investigation,analytic hierarchy process,fuzzy comprehensive evaluation and data analysis are used.In this way,we obtain a grade set for a multi-level index system and determine the weight of each index.Finally,we establish a comprehensive evaluation system for safety of the automobile textiles and select parameters under extreme conditions to verify the system,which proves to be effective and feasible.
文摘Developing countries are encouraged to pursue environmental protection and industrial development simultaneously,although it is a big challenge to reach win-win situation.This study explored the relationshipbetween environmental regulations and the industry enhancement in developing countries through conducting an empirical analysis of the impact of environmental regulationson Chinese automobile industry.In the empirical analysis,a total of64Chinese automobile enterprises were investigated,the Malmquist index of total factor productivity was adopted to determine the productivity of Chinese automobiles,and the two-step system Generalised Method of Moments(GMM)estimation was used for the regressionanalysis.The resultsshowedthat environmental regulations negatively affected the productivity and technology of Chinese automobile industry during 2004-2018.The production costof automobile industry in China was rising sharply,and the productivity and technological progress of Chinese automobile industry were impeded significantly.The case of Chinese automobile industry illustrated that strict environmental requirements can negatively impact industry productivity by increasing production costs and squeezing industry profits.
文摘Turkey has given importance to the development of the automobile industry since the Ottoman period.While the Ottomans,who were aware of the development process of the automobile industry in the world,provided transportation by horse-drawn carriage,they thought of importing automobiles for the Sultan and high-level bureaucrats in an effort to switch to automobile transportation.However,after the proclamation of the Republic,automobile production started,just like airplanes.While a factory was established for the production of a domestic aircraft,the first automobile production facility was established in Istanbul in 1929 by the American Ford company.This factory was closed after a short time due to the world economic crisis.After the activities of the Kayseri Aircraft Factory,which lasted until 1948,came to an end,this time,Revolution car prototypes could be manufactured completely domestically in 1961.After the project,which did not go into mass production,the KoçGroup started to produce the domestically-made Anadol car with technology transfer from multiple sources in 1967,but the production of Anadol continued until 1984.In 1971,Renault cars started to be produced under the French Renault license,and TOFAŞcars under the Italian FIAT license.Towards the end of the 1970s,creative imitation applications were made in TOFAŞcars with the bird series.In the 1990s,the production of Japanese Honda and Toyota and South Korean Hyundai cars started.In 2011,the idea of producing a domestic automobile emerged,the Devrim automobile was taken as an example in this project,the first Togg prototype was manufactured with technology transfer from multiple sources in December 2018,and it was announced that mass production would begin in March 2023.The 12-year period from 2011 to 2023 is too long for the creation of a domestic automobile.It has been understood that this long process has been passed in order to regain the pre-1980 level of technological ability.However,the most important thing is the transition from the creative imitation stage to the innovation stage.Our wish is that this process can be shortened with phase skipping approaches.
