Materials mechanics and structural dynamics provide theoretical support for the structural optimization of amusement facilities.The design code system guides the design process,covering aspects such as strength and fa...Materials mechanics and structural dynamics provide theoretical support for the structural optimization of amusement facilities.The design code system guides the design process,covering aspects such as strength and fatigue life.This paper introduces optimization methods like standardized module interfaces and variable density methods,as well as topics related to finite element simulation,reliability enhancement,innovative practices,and their significance.展开更多
As a product of the new century,artificial intelligence has been continuously developed and advanced.It has been applied to many fields,especially in the field of mechanical design and manufacturing.With the support o...As a product of the new century,artificial intelligence has been continuously developed and advanced.It has been applied to many fields,especially in the field of mechanical design and manufacturing.With the support of artificial intelligence,mechanical design and manufacturing can not only reduce input costs but also significantly reduce the demand for labor,playing a positive role in improving the design efficiency and quality of mechanical manufacturing[1].This paper studies how to apply artificial intelligence technology to the mechanical design and production process to achieve greater application and development.展开更多
This paper focuses on the mechanical structure design of amusement rides,elucidating the application of fundamental theories such as statics and fatigue strength analysis.It introduces special requirements like impact...This paper focuses on the mechanical structure design of amusement rides,elucidating the application of fundamental theories such as statics and fatigue strength analysis.It introduces special requirements like impact and alternating stress,explores methods for structural safety assessment and their limitations.The paper also covers principles for selecting indicators,the construction of a grading evaluation system,and the application of various materials and technologies in amusement rides,emphasizing the importance of structural safety and future development directions.展开更多
Most insects and hummingbirds can generate lift during both upstroke and downstroke with a nearly horizontal flapping stroke plane,and perform precise hovering flight.Further,most birds can utilize tails and muscles i...Most insects and hummingbirds can generate lift during both upstroke and downstroke with a nearly horizontal flapping stroke plane,and perform precise hovering flight.Further,most birds can utilize tails and muscles in wings to actively control the flight performance,while insects control their flight with muscles based on wing root along with wing’s passive deformation.Based on the above flight principles of birds and insects,Flapping Wing Micro Air Vehicles(FWMAVs)are classified as either bird-inspired or insect-inspired FWMAVs.In this review,the research achievements on mechanisms of insect-inspired,hoverable FWMAVs over the last ten years(2011-2020)are provided.We also provide the definition,function,research status and development prospect of hoverable FWMAVs.Then discuss it from three aspects:bio-inspiration,motor-driving mechanisms and intelligent actuator-driving mechanisms.Following this,research groups involved in insect-inspired,hoverable FWMAV research and their major achievements are summarized and classified in tables.Problems,trends and challenges about the mechanism are compiled and presented.Finally,this paper presents conclusions about research on mechanical structure,and the future is discussed to enable further research interests.展开更多
A novel hybrid algorithm named ABC-BBO, which integrates artificial bee colony(ABC) algorithm with biogeography-based optimization(BBO) algorithm, is proposed to solve constrained mechanical design problems. ABC-BBO c...A novel hybrid algorithm named ABC-BBO, which integrates artificial bee colony(ABC) algorithm with biogeography-based optimization(BBO) algorithm, is proposed to solve constrained mechanical design problems. ABC-BBO combined the exploration of ABC algorithm with the exploitation of BBO algorithm effectively, and hence it can generate the promising candidate individuals. The proposed hybrid algorithm speeds up the convergence and improves the algorithm's performance. Several benchmark test functions and mechanical design problems are applied to verifying the effects of these improvements and it is demonstrated that the performance of this proposed ABC-BBO is superior to or at least highly competitive with other population-based optimization approaches.展开更多
In the existing modular joint design and control methods of collaborative robots, the inertia of the manipulator link is large,the dynamic trajectory planning ability is weak, the collision stop safety strategy is dep...In the existing modular joint design and control methods of collaborative robots, the inertia of the manipulator link is large,the dynamic trajectory planning ability is weak, the collision stop safety strategy is dependent, and the adaptability and safety to the changing environment are limited. This paper develops a six-degree-of-freedom lightweight collaborative manipulator with real-time dynamic trajectory planning and active compliance control. Firstly, a novel motor installation, joint transmission, and link design method is put forward to reduce the inertia of the links and improve intrinsic safety. At the same time, to enhance the dynamic operation capability and quick response of the manipulator, a smooth planning of position and orientation under initial/end pose and velocity constraints is proposed. The adaptability to the environment is improved by the active compliance control. Finally, experiments are carried out to verify the effectiveness of the proposed design, planning, and control methods.展开更多
In this paper, a Web-based Mechanical Design and A na lysis Framework (WMDAF) is proposed. This WMADF allows designers to develop web -based computer aided programs in a systematic way during the collaborative mec han...In this paper, a Web-based Mechanical Design and A na lysis Framework (WMDAF) is proposed. This WMADF allows designers to develop web -based computer aided programs in a systematic way during the collaborative mec hanical system design and analysis process. This system is based on an emerg ing web-based Content Management System (CMS) called eXtended Object Oriented P ortal System (XOOPS). Due to the Open Source Status of the XOOPS CMS, programs d eveloped with this framework can be further customized to satisfy the demands of the user. To introduce the use of this framework, this paper exams three differ ent types of mechanical design and analysis problems. First, a repetitive design consideration and calculation process is transferred into WMADF programs to gai n efficiency for wired collaborative team. Second, the considered product solid model is created directly through the use of XOOPS program and Microsoft Compone nt Object Model (COM) instances. To the end of the paper, an example linked with ANSYS is used to indicate the possible application of this framework.展开更多
The concept of Intelligent Mechanical Design （IMD） is presented to show how a mechanical structure can be designed to affect robot controllability, simplification and task performance. Exploring this concept produce...The concept of Intelligent Mechanical Design （IMD） is presented to show how a mechanical structure can be designed to affect robot controllability, simplification and task performance. Exploring this concept produces landmarks in the territory of mechanical robot design in the form of seven design principles. The design principles, which we call the Mecha-Telligence Principles （MTP）, provide guidance on how to design mechanics for autonomous mobile robots. These principles guide us to ask the right questions when investigating issues concerning self-controllable, reliable, feasible, and compatible mechanics for autonomous mobile robots. To show how MTP can be applied in the design process we propose a novel methodology, named as Mecha-Telligence Methodology （MTM）. Mechanical design by the proposed methodology is based on preference classification of the robot specification described by interaction of the robot with its environment and the physical parameters of the robot mechatronics. After defining new terms, we investigate the feasibility of the proposed methodology to the mechanical design of an autonomous mobile sewer inspection robot. In this industrial project we show how a passive-active intelligent moving mechanism can be designed using the MTM and employed in the field.展开更多
Long-term, body-adhered medical devices rely on an adhesive interface to maintain contact with the patient. The greatest threat to on-body adhesion is mechanical stress imparted on the medical device. Several factors ...Long-term, body-adhered medical devices rely on an adhesive interface to maintain contact with the patient. The greatest threat to on-body adhesion is mechanical stress imparted on the medical device. Several factors contribute to the ability of the device to withstand such stresses, such as the mechanical design, shape, and size of the device. This analysis investigates the impact that design changes to the device have on the stress and strain experienced by the system when acted on by a stressor. The analysis also identifies the design changes that are most effective at reducing the stress and strain. An explicit dynamic finite element analysis method was used to simulate several design iterations and a regression analysis was performed to quantify the relationship between design and resultant stress and strain. The shape, height, size, and taper of the medical device were modified, and the results indicate that, to reduce stress and strain in the system, the device should resemble a square in shape, be short in height, and small in size with a large taper. The square shape experienced 17.5% less stress compared to the next best performing shape. A 10% reduction in device height resulted in a 21% reduction in stress and 24% reduction in strain. A 20% reduction in device size caused a 7% reduction in stress and 2% reduction in strain. A 20% increase in device taper size led to a negligible reduction in stress and a 6% reduction in strain. The height of the device had the greatest impact on the resultant stress and strain.展开更多
A design project was used in junior level mechanical design course to challenge the students＇ creativity skills. Beside the theoretical foundation of the course subject, the students were introduced to several profes...A design project was used in junior level mechanical design course to challenge the students＇ creativity skills. Beside the theoretical foundation of the course subject, the students were introduced to several professional skills such as： decision making tools, technical review meetings, interaction with customers, and teamwork skills. The design challenge was to develop a bike rack to meet a list of technical and marketing constraints. Details of the project requirements are presented with a brief overview of the main project mentoring tools. Students＇ creativity is discussed through two samples of the student work. It was noticed that, the basic creativity skills of the students can be improved by using some of the training tools, however, the students vary in their response to this training.展开更多
At this stage, with the improvement of social living standards, as well as the rapid development of new science and technology, computer has become an indispensable new technology in the market economy environment and...At this stage, with the improvement of social living standards, as well as the rapid development of new science and technology, computer has become an indispensable new technology in the market economy environment and people's work and life, and the National Research on the computer industry is gradually strengthened. Driven by the computer industry, the economic benefits of various industries have been greatly improved. At present, computer-aided technology is mainly used in mechanical design and manufacturing. The application of this technology can greatly improve the work efficiency of mechanical design and manufacturing, ensure the design and manufacturing quality of various parts, meet people's demand standards, and create better development space for enterprises.The combination of computer-aided technology and mechanical design and manufacturing is an inevitable trend of the times, and also an important choice to create social and economic benefits.展开更多
By means of Solid Works, three-dimensional model of automated assembly system was established, and kinematic simulation based on Solid Works Motion of assembly process for relay was performed. The simulation results p...By means of Solid Works, three-dimensional model of automated assembly system was established, and kinematic simulation based on Solid Works Motion of assembly process for relay was performed. The simulation results proved the feasibility of mechanical design. Eventually, the productivity was estimated based on simulation analysis. The mechanical design provided a solution with high reference value to practical design of automated assembly system for relay.展开更多
Mechanical design and manufacturing and its automation are the embodiment of China's comprehensive national strength. The development of mechanical design and manufacturing and its automation represents the positi...Mechanical design and manufacturing and its automation are the embodiment of China's comprehensive national strength. The development of mechanical design and manufacturing and its automation represents the position of China's industrial industry in the international market. Therefore, the automation of mechanical equipment is widely concerned by all walks of life. The realization of automation of mechanical equipment can not only promote the progress of mechanical design and manufacturing automation system, but also greatly improve the safety and production efficiency of mechanical enterprises. Only through the continuous innovation of technology and the improvement of the actual manufacturing efficiency, can we ensure that the machinery can still meet the requirements of modern people in the complex and changeable working environment, so that the machinery tool can also be innovated and improved with the development of the times.展开更多
In recent years, with the continuous improvement of China's scientific and technological level, the requirements of various industries for production efficiency are becoming higher and higher. Under this backgroun...In recent years, with the continuous improvement of China's scientific and technological level, the requirements of various industries for production efficiency are becoming higher and higher. Under this background, mechanical automation technology arises at the historic moment. According to the performance of mechanical automation technology, the technology has broad development space in the future. In this paper, the development direction of mechanical design and manufacture and its automation is studied and analyzed for reference.展开更多
In recent years, with the steady development of China's economy, the scale of domestic manufacturing industry has also been rapidly improved. In recent years, China has formulated high-end manufacturing 2025 to bo...In recent years, with the steady development of China's economy, the scale of domestic manufacturing industry has also been rapidly improved. In recent years, China has formulated high-end manufacturing 2025 to boost the development of domestic high-end manufacturing industry, which has brought many development opportunities to the machinery industry. The deep integration of automation and automation is helpful to promote the comprehensive development level of China’s industry. This paper analyzes and expounds the design principles of mechanical design and manufacturing and automation, the content and application of automation control theory, and the development trend of automation design principles.展开更多
Mechanical design and manufacturing technology has been greatly improved. At present;China's machinery design and manufacturing industry is taking certain measures;enabling the entire industry to implement intelli...Mechanical design and manufacturing technology has been greatly improved. At present;China's machinery design and manufacturing industry is taking certain measures;enabling the entire industry to implement intelligent digital-related practices and comprehensive transformation;technicians and employees are constantly working to make the entire industry fully intelligent. This article provides a detailed analysis of the design and manufacture of intelligent machines;the whole phenomenon of current mechanical design and manufacturing industry is analyzed. On this basis;analyze and discuss specific application methods and potential problems that may occur in their use;looking forward to the future development of machinery industry.展开更多
The research and design, development and manufacturing of machinery and quality control are the main process and content of the development of machinery in China. Adopt advanced mechanical production and processing te...The research and design, development and manufacturing of machinery and quality control are the main process and content of the development of machinery in China. Adopt advanced mechanical production and processing technology, improve the production technology content of modern machinery, improve the current production and processing efficiency of modern machinery in China and effectively control product quality.展开更多
In view of the shortcomings of traditional teaching in the Mechanical Design Fundamentals course,the teaching resources are integrated,the teaching content,teaching methods,and assessment methods are reformed,scientif...In view of the shortcomings of traditional teaching in the Mechanical Design Fundamentals course,the teaching resources are integrated,the teaching content,teaching methods,and assessment methods are reformed,scientific research results are introduced into course teaching,and the task-driven teaching practice is applied.These measures have improved classroom activity,stimulated independent learning,and laid the foundation for the cultivation of students’engineering literacy and innovative ability.展开更多
With the rapid development of science and technology, people pay more attention to technological innovation, which will have a direct impact on peoples production and life. From the perspective of mechanical manufactu...With the rapid development of science and technology, people pay more attention to technological innovation, which will have a direct impact on peoples production and life. From the perspective of mechanical manufacturing and automation technology, it is necessary to conduct an in-depth analysis of the core technologies, and on this basis, find feasible application strategies, so as to inject more powerful power into economic construction.展开更多
文摘Materials mechanics and structural dynamics provide theoretical support for the structural optimization of amusement facilities.The design code system guides the design process,covering aspects such as strength and fatigue life.This paper introduces optimization methods like standardized module interfaces and variable density methods,as well as topics related to finite element simulation,reliability enhancement,innovative practices,and their significance.
文摘As a product of the new century,artificial intelligence has been continuously developed and advanced.It has been applied to many fields,especially in the field of mechanical design and manufacturing.With the support of artificial intelligence,mechanical design and manufacturing can not only reduce input costs but also significantly reduce the demand for labor,playing a positive role in improving the design efficiency and quality of mechanical manufacturing[1].This paper studies how to apply artificial intelligence technology to the mechanical design and production process to achieve greater application and development.
文摘This paper focuses on the mechanical structure design of amusement rides,elucidating the application of fundamental theories such as statics and fatigue strength analysis.It introduces special requirements like impact and alternating stress,explores methods for structural safety assessment and their limitations.The paper also covers principles for selecting indicators,the construction of a grading evaluation system,and the application of various materials and technologies in amusement rides,emphasizing the importance of structural safety and future development directions.
文摘Most insects and hummingbirds can generate lift during both upstroke and downstroke with a nearly horizontal flapping stroke plane,and perform precise hovering flight.Further,most birds can utilize tails and muscles in wings to actively control the flight performance,while insects control their flight with muscles based on wing root along with wing’s passive deformation.Based on the above flight principles of birds and insects,Flapping Wing Micro Air Vehicles(FWMAVs)are classified as either bird-inspired or insect-inspired FWMAVs.In this review,the research achievements on mechanisms of insect-inspired,hoverable FWMAVs over the last ten years(2011-2020)are provided.We also provide the definition,function,research status and development prospect of hoverable FWMAVs.Then discuss it from three aspects:bio-inspiration,motor-driving mechanisms and intelligent actuator-driving mechanisms.Following this,research groups involved in insect-inspired,hoverable FWMAV research and their major achievements are summarized and classified in tables.Problems,trends and challenges about the mechanism are compiled and presented.Finally,this paper presents conclusions about research on mechanical structure,and the future is discussed to enable further research interests.
基金Projects(61463009,11264005,11361014)supported by the National Natural Science Foundation of ChinaProject([2013]2082)supported by the Science Technology Foundation of Guizhou Province,China
文摘A novel hybrid algorithm named ABC-BBO, which integrates artificial bee colony(ABC) algorithm with biogeography-based optimization(BBO) algorithm, is proposed to solve constrained mechanical design problems. ABC-BBO combined the exploration of ABC algorithm with the exploitation of BBO algorithm effectively, and hence it can generate the promising candidate individuals. The proposed hybrid algorithm speeds up the convergence and improves the algorithm's performance. Several benchmark test functions and mechanical design problems are applied to verifying the effects of these improvements and it is demonstrated that the performance of this proposed ABC-BBO is superior to or at least highly competitive with other population-based optimization approaches.
基金supported by National Key Research and Development Program of China (No. 2018AAA0103003)National Natural Science Foundation of China(No. 61773378)+1 种基金the Basic Research Program (No.JCKY*******B029)the Strategic Priority Research Program of Chinese Academy of Sciences (No. XDB32050100)。
文摘In the existing modular joint design and control methods of collaborative robots, the inertia of the manipulator link is large,the dynamic trajectory planning ability is weak, the collision stop safety strategy is dependent, and the adaptability and safety to the changing environment are limited. This paper develops a six-degree-of-freedom lightweight collaborative manipulator with real-time dynamic trajectory planning and active compliance control. Firstly, a novel motor installation, joint transmission, and link design method is put forward to reduce the inertia of the links and improve intrinsic safety. At the same time, to enhance the dynamic operation capability and quick response of the manipulator, a smooth planning of position and orientation under initial/end pose and velocity constraints is proposed. The adaptability to the environment is improved by the active compliance control. Finally, experiments are carried out to verify the effectiveness of the proposed design, planning, and control methods.
文摘In this paper, a Web-based Mechanical Design and A na lysis Framework (WMDAF) is proposed. This WMADF allows designers to develop web -based computer aided programs in a systematic way during the collaborative mec hanical system design and analysis process. This system is based on an emerg ing web-based Content Management System (CMS) called eXtended Object Oriented P ortal System (XOOPS). Due to the Open Source Status of the XOOPS CMS, programs d eveloped with this framework can be further customized to satisfy the demands of the user. To introduce the use of this framework, this paper exams three differ ent types of mechanical design and analysis problems. First, a repetitive design consideration and calculation process is transferred into WMADF programs to gai n efficiency for wired collaborative team. Second, the considered product solid model is created directly through the use of XOOPS program and Microsoft Compone nt Object Model (COM) instances. To the end of the paper, an example linked with ANSYS is used to indicate the possible application of this framework.
文摘The concept of Intelligent Mechanical Design （IMD） is presented to show how a mechanical structure can be designed to affect robot controllability, simplification and task performance. Exploring this concept produces landmarks in the territory of mechanical robot design in the form of seven design principles. The design principles, which we call the Mecha-Telligence Principles （MTP）, provide guidance on how to design mechanics for autonomous mobile robots. These principles guide us to ask the right questions when investigating issues concerning self-controllable, reliable, feasible, and compatible mechanics for autonomous mobile robots. To show how MTP can be applied in the design process we propose a novel methodology, named as Mecha-Telligence Methodology （MTM）. Mechanical design by the proposed methodology is based on preference classification of the robot specification described by interaction of the robot with its environment and the physical parameters of the robot mechatronics. After defining new terms, we investigate the feasibility of the proposed methodology to the mechanical design of an autonomous mobile sewer inspection robot. In this industrial project we show how a passive-active intelligent moving mechanism can be designed using the MTM and employed in the field.
文摘Long-term, body-adhered medical devices rely on an adhesive interface to maintain contact with the patient. The greatest threat to on-body adhesion is mechanical stress imparted on the medical device. Several factors contribute to the ability of the device to withstand such stresses, such as the mechanical design, shape, and size of the device. This analysis investigates the impact that design changes to the device have on the stress and strain experienced by the system when acted on by a stressor. The analysis also identifies the design changes that are most effective at reducing the stress and strain. An explicit dynamic finite element analysis method was used to simulate several design iterations and a regression analysis was performed to quantify the relationship between design and resultant stress and strain. The shape, height, size, and taper of the medical device were modified, and the results indicate that, to reduce stress and strain in the system, the device should resemble a square in shape, be short in height, and small in size with a large taper. The square shape experienced 17.5% less stress compared to the next best performing shape. A 10% reduction in device height resulted in a 21% reduction in stress and 24% reduction in strain. A 20% reduction in device size caused a 7% reduction in stress and 2% reduction in strain. A 20% increase in device taper size led to a negligible reduction in stress and a 6% reduction in strain. The height of the device had the greatest impact on the resultant stress and strain.
文摘A design project was used in junior level mechanical design course to challenge the students＇ creativity skills. Beside the theoretical foundation of the course subject, the students were introduced to several professional skills such as： decision making tools, technical review meetings, interaction with customers, and teamwork skills. The design challenge was to develop a bike rack to meet a list of technical and marketing constraints. Details of the project requirements are presented with a brief overview of the main project mentoring tools. Students＇ creativity is discussed through two samples of the student work. It was noticed that, the basic creativity skills of the students can be improved by using some of the training tools, however, the students vary in their response to this training.
文摘At this stage, with the improvement of social living standards, as well as the rapid development of new science and technology, computer has become an indispensable new technology in the market economy environment and people's work and life, and the National Research on the computer industry is gradually strengthened. Driven by the computer industry, the economic benefits of various industries have been greatly improved. At present, computer-aided technology is mainly used in mechanical design and manufacturing. The application of this technology can greatly improve the work efficiency of mechanical design and manufacturing, ensure the design and manufacturing quality of various parts, meet people's demand standards, and create better development space for enterprises.The combination of computer-aided technology and mechanical design and manufacturing is an inevitable trend of the times, and also an important choice to create social and economic benefits.
文摘By means of Solid Works, three-dimensional model of automated assembly system was established, and kinematic simulation based on Solid Works Motion of assembly process for relay was performed. The simulation results proved the feasibility of mechanical design. Eventually, the productivity was estimated based on simulation analysis. The mechanical design provided a solution with high reference value to practical design of automated assembly system for relay.
文摘Mechanical design and manufacturing and its automation are the embodiment of China's comprehensive national strength. The development of mechanical design and manufacturing and its automation represents the position of China's industrial industry in the international market. Therefore, the automation of mechanical equipment is widely concerned by all walks of life. The realization of automation of mechanical equipment can not only promote the progress of mechanical design and manufacturing automation system, but also greatly improve the safety and production efficiency of mechanical enterprises. Only through the continuous innovation of technology and the improvement of the actual manufacturing efficiency, can we ensure that the machinery can still meet the requirements of modern people in the complex and changeable working environment, so that the machinery tool can also be innovated and improved with the development of the times.
文摘In recent years, with the continuous improvement of China's scientific and technological level, the requirements of various industries for production efficiency are becoming higher and higher. Under this background, mechanical automation technology arises at the historic moment. According to the performance of mechanical automation technology, the technology has broad development space in the future. In this paper, the development direction of mechanical design and manufacture and its automation is studied and analyzed for reference.
文摘In recent years, with the steady development of China's economy, the scale of domestic manufacturing industry has also been rapidly improved. In recent years, China has formulated high-end manufacturing 2025 to boost the development of domestic high-end manufacturing industry, which has brought many development opportunities to the machinery industry. The deep integration of automation and automation is helpful to promote the comprehensive development level of China’s industry. This paper analyzes and expounds the design principles of mechanical design and manufacturing and automation, the content and application of automation control theory, and the development trend of automation design principles.
文摘Mechanical design and manufacturing technology has been greatly improved. At present;China's machinery design and manufacturing industry is taking certain measures;enabling the entire industry to implement intelligent digital-related practices and comprehensive transformation;technicians and employees are constantly working to make the entire industry fully intelligent. This article provides a detailed analysis of the design and manufacture of intelligent machines;the whole phenomenon of current mechanical design and manufacturing industry is analyzed. On this basis;analyze and discuss specific application methods and potential problems that may occur in their use;looking forward to the future development of machinery industry.
文摘The research and design, development and manufacturing of machinery and quality control are the main process and content of the development of machinery in China. Adopt advanced mechanical production and processing technology, improve the production technology content of modern machinery, improve the current production and processing efficiency of modern machinery in China and effectively control product quality.
基金The Education and Teaching Research Project of National University of Defense Technology(Project Number:U2020103)。
文摘In view of the shortcomings of traditional teaching in the Mechanical Design Fundamentals course,the teaching resources are integrated,the teaching content,teaching methods,and assessment methods are reformed,scientific research results are introduced into course teaching,and the task-driven teaching practice is applied.These measures have improved classroom activity,stimulated independent learning,and laid the foundation for the cultivation of students’engineering literacy and innovative ability.
文摘With the rapid development of science and technology, people pay more attention to technological innovation, which will have a direct impact on peoples production and life. From the perspective of mechanical manufacturing and automation technology, it is necessary to conduct an in-depth analysis of the core technologies, and on this basis, find feasible application strategies, so as to inject more powerful power into economic construction.
