期刊文献+
共找到4,869篇文章
< 1 2 244 >
每页显示 20 50 100
Build an International Teaching Resource Construction System and Practice International Talent Training in the Context of “Double First-class” ——Take the School of Software of Northwestern Polytechnical University Case as an Example
1
作者 Liming Lin Jiangbin Zheng +1 位作者 Chunyan Ma Qianru Wei 《计算机教育》 2022年第12期163-170,共8页
From the perspective of the development of world-class universities,internationalization is an essential strategic choice and external feature,and also an inevitable choice to improve the discourse power and competiti... From the perspective of the development of world-class universities,internationalization is an essential strategic choice and external feature,and also an inevitable choice to improve the discourse power and competitiveness of international higher education.In line with the national“double first-class”international development strategy of higher education,based on the cultivation of students’overall quality,the improvement of teachers’professional ability,and the development of school’s improvement of quality and efficiency,we School of Software,Northwestern Polytechnical University,explore new ideas and new measures for the cultivation of international software engineering talents,build a set of international teaching resources construction system,to form a reference standard and scheme for the cultivation of international software engineering talents.At present,we have achieved excellent results. 展开更多
关键词 “Double first-class” International teaching resources construction system INTERNATIONALIZATION Talents’training
在线阅读 下载PDF
Design and Implementation of PLC-Based Autonomous Construction System of Unmanned Vibratory Roller 被引量:2
2
作者 Weizu Huang Dong Wang +2 位作者 Zuodong Xiao Qiang Yao Danjie Du 《Computers, Materials & Continua》 SCIE EI 2020年第10期897-912,共16页
The vibratory roller is a piece of vital construction machinery in the field of road construction.The unmanned vibratory roller efficiently utilizes the automated driving technology in the vehicle engineering field,wh... The vibratory roller is a piece of vital construction machinery in the field of road construction.The unmanned vibratory roller efficiently utilizes the automated driving technology in the vehicle engineering field,which is innovative for the unmanned road construction.This paper develops and implements the autonomous construction system for the unmanned vibratory roller.Not only does the roller have the function of remote-controlled driving,but it also has the capability of autonomous road construction.The overall system design uses the Programmable Logic Controller(PLC)as the kernel controller.It establishes the communication network through multiple Input/Output(I/O)modules,Recommended Standard 232(RS232)serial port,Controller Area Network(CAN)bus,and wireless networks to control the roller vehicle completely.The locating information is obtained through the Global Navigation Satellite System(GNSS)satellite navigation equipment group to support the process of autonomous construction.According to the experimental results,the autonomous construction system can finally enable the roller to perform driving operations and construction independently,which was a significant step forward in engineering application. 展开更多
关键词 PLC-based autonomous construction unmanned system vibratory roller road engineering
在线阅读 下载PDF
Modern Spontaneous Evolution and Research Value of Construction System of Tibetan Dwellings in Aba County: A Case Study of Tieqiong Village in Waerma Town
3
作者 CAO Yong 《Journal of Landscape Research》 2017年第3期94-100,共7页
Based on the field survey of dwellings in Tieqiong Village of Waerma Town in Aba County, northwest Tibetan area of Sichuan Province, this paper firstly introduced main characteristics of the construction system in the... Based on the field survey of dwellings in Tieqiong Village of Waerma Town in Aba County, northwest Tibetan area of Sichuan Province, this paper firstly introduced main characteristics of the construction system in the structure, materials and structural system, and analyzed changes in construction practices of various dwellings from traditional to modern time. Finally, it summarized characteristics of spontaneous evolution and research value of the construction system of dwellings in the northwest Tibetan area of Sichuan Province, with rammed earth wooden dwellings in upper and middle Aba areas as representatives. 展开更多
关键词 TIBETAN DWELLINGS in Aba COUNTY Rammed earth buildings construction system MODERN EVOLUTION
在线阅读 下载PDF
Analysis of Moral Hazard in Engineering Agent Construction System
4
作者 Lihua Wang Shuguang Zhou Yuetong Hui 《Frontiers Research of Architecture and Engineering》 2020年第1期22-26,共5页
Analyze the moral hazard issues in the construction agency system,and enumerate the performance of moral hazard.Deeply analyze the causes,start with strengthening supervision and perfecting incentive measures,eliminat... Analyze the moral hazard issues in the construction agency system,and enumerate the performance of moral hazard.Deeply analyze the causes,start with strengthening supervision and perfecting incentive measures,eliminate the impact of moral hazard,and give play to the advantages of agent construction. 展开更多
关键词 ENGINEERING AGENT construction system MORAL HAZARD
在线阅读 下载PDF
Life Cycle Assessment:Embedded and Maintenance Environmental Impacts of Social Interest Housing Construction Systems
5
作者 Marianne Di Domênico Thaísa Leal da Silva +1 位作者 Lauro AndréRibeiro Andréa Quadrado Mussi 《Journal of Civil Engineering and Architecture》 2021年第8期408-418,共11页
Characterized by high consumption of natural resources and great generation of environmental impacts,civil construction becomes an important ally to the development of strategies for a more sustainable built environme... Characterized by high consumption of natural resources and great generation of environmental impacts,civil construction becomes an important ally to the development of strategies for a more sustainable built environment.In this context,this article aims to evaluate construction systems of social interest housing and point out their participation in relation to total impacts,in addition to indicating the environmental impacts embedded in the construction materials present in these systems.To this end,a case study was selected to apply Life Cycle Assessment(LCA)methodology and assess impacts of the building materials used in a house of a social housing complex.LCA was applied to masonry,roof,coatings and floor systems.The scope adopted assesses impacts incorporated in construction materials,analyzing the stages of raw material extraction,materials production,transport to construction site,maintenance and materials replacement.Concerning life cycle inventory,Ecoinvent 3.6 database was used and environmental impacts were calculated using CML method with the aid of OpenLCA 1.9 software.In general,results showed that the maintenance phase has the greatest environmental impact participation related to analyzed systems.Furthermore,it was possible to conclude that coatings and masonry systems were the ones that most added to total environmental impacts. 展开更多
关键词 LCA environmental impacts social interest housing construction materials
在线阅读 下载PDF
Construction of Green Ecological Embankment Construction System
6
作者 FANGLiang 《外文科技期刊数据库(文摘版)工程技术》 2022年第6期078-082,共5页
In the process of Chinas urban modernization, the design and construction of green ecological dikes must be strengthened. When carrying out ecological dam planning, we should fully consider its impact on the ecologica... In the process of Chinas urban modernization, the design and construction of green ecological dikes must be strengthened. When carrying out ecological dam planning, we should fully consider its impact on the ecological environment and formulate scientific, coordinated and reasonable green ecological dam planning. At the present stage of development, attention should be paid to the design and ecological protection of embankments, making full use of their design functions, and strictly designing and constructing to improve their design functions. The application of the concept of green ecological embankment construction in water conservancy projects can not only enhance the flood control capacity of river courses, but also fundamentally realize comprehensive and comprehensive planning, pay more attention to the ecological management of rivers, and finally realize the coordinated development of human, river and natural environment. This paper briefly discusses the design and construction technology of improving the green ecological embankment of water conservancy projects, analyzes the existing problems, and puts forward corresponding countermeasures on how to improve its permeability, quality and ecological environment. 展开更多
关键词 green ecology dike construction construct system
原文传递
International Comparison of Training Goals in Wooden Construction Education:Focusing on the Contents of Wooden Construction Systems for Housing,Commercial,and Public Buildings
7
作者 Miho Akita Rio Shibata +2 位作者 Shin Murakami Norie Kawano Satoka Takahashi 《Journal of Civil Engineering and Architecture》 2025年第11期513-522,共10页
This study aims to examine the challenges and future directions of large-scale wooden construction education at universities in Japan and Finland.It compares the wooden construction curricula at universities and the a... This study aims to examine the challenges and future directions of large-scale wooden construction education at universities in Japan and Finland.It compares the wooden construction curricula at universities and the architectural education initiatives undertaken by firms specializing in large-scale wood construction design in both countries.The target applications for large-scale wooden construction are residential,commercial,and public buildings.Comparing university education revealed many commonalities between the two countries,allowing them to be classified into two types:“seminar-centered”and“lecture-centered”.Japanese universities are categorized by building type and scale for educational purposes.Finnish universities focus their education on the properties and functions of wood.Based on these results,we infer that incorporating both Japan’s architecture-planning-focused education and Finland’s materials-focused education into teaching,using familiar housing buildings as a theme,will lead to the wider adoption of large-scale wooden construction. 展开更多
关键词 Wooden construction education large-scale wooden buildings systems housing buildings commercial buildings public buildings
在线阅读 下载PDF
Research on the Construction of Intellectual Property System and Optimization of Business Environment in China
8
作者 Zhang Xue Lyu Guofu 《科技与法律(中英文)》 2025年第1期125-137,共13页
With the rapid development of globalization and information technology,intellectual property has been one of the key drivers of economic growth,and the construction of intellectual property system has become an import... With the rapid development of globalization and information technology,intellectual property has been one of the key drivers of economic growth,and the construction of intellectual property system has become an important criterion for measuring the quality of business environment.This article is intended to explore the current status of intellectual property system construction in China,the challenges,and its relationship with the business environment,to propose the corresponding countermeasures and suggestions.The study finds that the legal system of intellectual property in China is gradually improving,and judicial and administrative protection are continuously strengthened.However,the challenges still remain such as frequent infringements,rights hard to protect and insufficient international cooperation.These issues not only affect the legitimate rights and interests of innovation entities,but also for the market fairness and the level of the business environment.Therefore,this article proposes that strengthening the perfection of the intellectual property legal system,enhancing intellectual property services and support capabilities,strengthening international cooperation and exchanges,and accelerating the cultivation of composite talents.It aims to provide theoretical references for the construction of intellectual property system and the optimization of the business environment,promote the high-quality development of economy and enhance the global competitiveness of the country. 展开更多
关键词 intellectual property business environment system construction economic development
在线阅读 下载PDF
Human-robot collaboration integrated with virtual reality in construction and manufacturing industries:A systematic review
9
作者 Ehsan SHOURANGIZ Fatemeh GHAFARI Chao WANG 《虚拟现实与智能硬件(中英文)》 2025年第4期317-343,共27页
The integration of Human-Robot Collaboration(HRC)into Virtual Reality(VR)technology is transforming industries by enhancing workforce skills,improving safety,and optimizing operational processes and efficiency through... The integration of Human-Robot Collaboration(HRC)into Virtual Reality(VR)technology is transforming industries by enhancing workforce skills,improving safety,and optimizing operational processes and efficiency through realistic simulations of industry-specific scenarios.Despite the growing adoption of VR integrated with HRC,comprehensive reviews of current research in HRC-VR within the construction and manufacturing fields are lacking.This review examines the latest advances in designing and implementing HRC using VR technology in these industries.The aim is to address the application domains of HRC-VR,types of robots used,VR setups,and software solutions used.To achieve this,a systematic literature review using the Preferred Reporting Items for Systematic Reviews and Meta-Analyses methodology was conducted on the Web of Science and Google Scholar databases,analyzing 383 articles and selecting 53 papers that met the established selection criteria.The findings emphasize a significant focus on enhancing human-robot interaction with a trend toward using immersive VR experiences and interactive 3D content creation tools.However,the integration of HRC with VR,especially in the dynamic construction environment,presents unique challenges and opportunities for future research,including developing more realistic simulations and adaptable robot systems.This paper offers insights for researchers,practitioners,educators,industry professionals,and policymakers interested in leveraging the integration of HRC with VR in construction and manufacturing industries. 展开更多
关键词 systematic literature review Virtual reality Human-robot collaboration construction MANUFACTURING
在线阅读 下载PDF
Study on the investment and construction models and value assessment of shared energy storage in the context of the new power system
10
作者 Yuanying Chi Zihang Jin +3 位作者 Xufeng Zhang Yanzhao Zhang Yuxi Wu Junqi Wang 《Global Energy Interconnection》 2025年第4期700-718,共19页
New energy-storage systems play a pivotal role in the development of the new power system for advancing the energy transition in China.In the“14th Five-Year Plan”for the New Energy-Storage Development,it is proposed... New energy-storage systems play a pivotal role in the development of the new power system for advancing the energy transition in China.In the“14th Five-Year Plan”for the New Energy-Storage Development,it is proposed to expand investment and construction models by promoting the deployment of energy-storage facilities through the ways of self-construction,leasing,and purchasing,and to encourage the development of the shared energy-storage.However,the current scarcity in the model of the shared energy-storage invest-ment and construction substantially restricts its development,particularly due to unclear mechanisms for cost and benefit allocation,which also discourages potential investors.To address the issue,this paper proposes investment and construction models for shared energy-storage that aligns with the present stage of energy storage development.In specific,three main models are introduced:(1)Cen-tralized Self-built Shared Energy-Storage model(CSSES),(2)Third-party Investment Shared Energy-Storage model(TISES),and(3)Distributed Self-built Shared Energy Storage(DSSES)model.The cost–benefit analysis is conducted for each model.The results indicate that the CSSES model achieves the highest internal rate of return(11.5%)and the shortest payback period,while the DSSES model per-forms acceptable with an IRR of 9.4%.In contrast,the TISES model shows the lowest IRR(6.7%)and requires higher electricity price for being feasible.Furthermore,the study employs the entropy weight method and the analytic hierarchy process(AHP)for indicator eval-uation,and integrates the technique for order preference by the similarity to an ideal solution(TOPSIS)for scheme optimization.The results show that both the CSSES model and the DSSES model achieve the highest proximity scores.Under environmental regulations,these models demonstrate superior economic benefits by optimizing energy storage utilization,reducing user costs,and enhancing overall profitability. 展开更多
关键词 Shared energy-storage Investment and construction model AHP Entropy weight method
在线阅读 下载PDF
Bottlenecks and Innovative Breakthroughs in the Construction of China’s Environmental Health Risk Assessment Technological System
11
作者 Xiaoyan Yang Xu Han +2 位作者 Jiaxin Lyu Qin Wang Dongqun Xu 《Biomedical and Environmental Sciences》 2025年第11期1329-1350,共22页
INTRODUCTION Contemporary human living environments present complex and pervasive health risks,and environmental health challenges are becoming increasingly prominent.These risks encompass diverse domains,such as chem... INTRODUCTION Contemporary human living environments present complex and pervasive health risks,and environmental health challenges are becoming increasingly prominent.These risks encompass diverse domains,such as chemical factors(e.g.,heavy metals,nanomaterials,per-and polyfluoroalkyl substances),physical factors(e.g.,noise,radiation,and extreme weather)biological factors(e.g.,pathogenic microorganisms and parasites),natural disasters(e.g.,earthquakes and floods),and anthropogenic incidents(e.g.,chemical spills,fires,and explosions). 展开更多
关键词 chemical factors egheavy metalsnanomaterialsper environmental health challenges technological system BOTTLENECKS construction factors egpathogenic microorganisms parasites natural disasters egearthquakes innovative breakthroughs environmental health risk assessment
在线阅读 下载PDF
Study on the Construction of Whole-course Nursing Objective Management System for Patients with Type 2 Diabetes
12
作者 Lei Wu 《Journal of Clinical and Nursing Research》 2025年第1期203-208,共6页
Objective: To explore the effect of a whole-course nursing objective management system on disease control and quality of life in patients with type 2 diabetes, and to propose strategies for constructing such a system ... Objective: To explore the effect of a whole-course nursing objective management system on disease control and quality of life in patients with type 2 diabetes, and to propose strategies for constructing such a system for these patients. Methods: Ninety patients with type 2 diabetes admitted to the Department of Endocrinology of the hospital from January 2024 to June 2024 were selected. The control group (n = 45) received routine nursing care, while the observation group (n = 45) received whole-course nursing. Indicators such as glucose metabolism and compliance behavior were measured before and after care, and the health and quality of life of patients in both groups were evaluated. Results: A comparison of blood glucose levels and compliance behavior showed that the observation group had lower blood glucose levels than the control group (P < 0.05). Additionally, the compliance behavior score of the observation group was higher than that of the control group (P < 0.05). Conclusion: The holistic nursing model demonstrates significant nursing effects for patients with type 2 diabetes. This approach not only assists in blood sugar control, prevents disease progression, and reduces complications, but also enhances patients’ knowledge of health management, aiding in their recovery. 展开更多
关键词 Patients with type 2 diabetes Whole nursing Management system by objectives construction path
暂未订购
The Construction and Improvement of the Theoretical System of Ideological and Political Education in Colleges and Universities in the New Era
13
作者 Rufei Zhao 《Journal of Contemporary Educational Research》 2025年第9期349-357,共9页
In the context of the new era,the construction and improvement of a theoretical system for ideological and political education in universities is a core proposition for fulfilling the fundamental task of cultivating m... In the context of the new era,the construction and improvement of a theoretical system for ideological and political education in universities is a core proposition for fulfilling the fundamental task of cultivating morality and educating people.Guided by Xi Jinping Thought on Socialism with Chinese Characteristics for a New Era and informed by the realities of social transformation,technological revolution,and educational reform in the new era,this article systematically analyzes the current status and prominent issues of the theoretical system for ideological and political education in universities.It analyzes the causes from the perspectives of concepts,mechanisms,and resources,and ultimately proposes a“three-dimensional collaborative”framework for system construction and specific strategies for improvement.This research aims to provide theoretical support and practical paths for theoretical innovation in ideological and political education in universities in the new era,helping to cultivate new generations of people who will shoulder the great responsibility of national rejuvenation. 展开更多
关键词 New era Ideological and political education in colleges and universities Theoretical system Collaborative construction
在线阅读 下载PDF
Design and Construction of Rainwater Harvesting and Water-saving Irrigation System of Toona sinensis on Mountain Slopes 被引量:1
14
作者 尹庆珍 谷成铜 +1 位作者 张立永 谷明月 《Agricultural Science & Technology》 CAS 2017年第11期2163-2167,2178,共6页
In order to collect rainwater and resist drought to enhance the utilization rate of rainfall and water resources, through project rainwater harvesting measures, the total annual rainwater harvesting amount of the six ... In order to collect rainwater and resist drought to enhance the utilization rate of rainfall and water resources, through project rainwater harvesting measures, the total annual rainwater harvesting amount of the six greenhouses was calculated according to annual average precipitation 542.2 mm, up to 1 095.7 m^3. The upper natural slopes of cultivated land were as rainwater harvesting areas, and total annual rainwater harvesting amount was 49 242 m^3 on the mountain slopes with an area of 73.37 hm^2, while total water storage amount was 39 394 m^3 in theory, so it could meet water use for the irrigation of 26.28 hm^2 of T. sinensis land. To be convenient for rainwater harvesting, irrigation and supplying water to the water-saving cellars, one pert-cut and part-fill reservoir (which was 470 m^3 in volume) was built on the mountain slopes at the right rear of the greenhouses, and their altitude difference was 50 m. The reservoir was sealed and was built with reinforced concrete. Water-saving cellars were distributed in front and the middle and at the back of two rows of greenhouses, and they were connected with each other. The reservoir could supply water to the water-saving cellars and also collect water by mountain slopes, from the lower water-saving cellars or deep wells. Two rainwater hervesting ditches that were 1 650 m in length were at the lower edge of arable land in the upper reaches of slopes to intercept rainfall runoff and make it flow into channels and then the sedimentation tanks. The total annual rainwater harvesting amount of the reservoir and water-saving cellars was 1 222.5 m^3. 展开更多
关键词 Toona sinensis in mountain slopes Rainwater harvesting and water-saving irrigation system Design and construction
在线阅读 下载PDF
A working model of the Internet-based steel construction consulting system for architects
15
作者 周琦 《Journal of Southeast University(English Edition)》 EI CAS 2003年第4期336-342,共7页
As Internet becomes largely used in the AEC (architecture, engineering andconstruction) industry, the main focus is in the area of information and project management. In thedynamic engineering consulting, less has bee... As Internet becomes largely used in the AEC (architecture, engineering andconstruction) industry, the main focus is in the area of information and project management. In thedynamic engineering consulting, less has been done so far. This research tries to find thepossibility and potential of the Internet application in design and consulting for the AEC industryby proposing a working model in specific area, steel construction. Several issues have beendiscussed: defining and formatting the typical procedure and character of the steel constructionconsulting, behavior approach based on activities among partners, and the model organization. 展开更多
关键词 steel construction consulting behavior approach object-oriented methods
在线阅读 下载PDF
Study on Construction Strategy of Rainwater Landscape System in Urban Residential Community
16
作者 刘丽 刘晓青 《Agricultural Science & Technology》 CAS 2017年第12期2580-2582,共3页
On the basis of analyzing the function and restriction conditions of water features in residential community, the feasibility and specific strategies of using rain- water to construct the waterscape system in resident... On the basis of analyzing the function and restriction conditions of water features in residential community, the feasibility and specific strategies of using rain- water to construct the waterscape system in residential community were proposed, with the aim to deal with the problems of urban water shortage, urban waterlogging and initial rainwater non-point source pollution. 展开更多
关键词 Waterscape system Urban residential community construction Facllltles
在线阅读 下载PDF
Construction and application of an assessment index system for evalu ating the eco-community’s sustainability 被引量:1
17
作者 韩英 代力民 +2 位作者 赵小汎 于大炮 吴胜男 《Journal of Forestry Research》 SCIE CAS CSCD 2008年第2期154-158,共5页
An assessment index system including environment, socio-culture, economy and technology was established for evaluating environmental construction level of community (objective construction), and questionnaire was de... An assessment index system including environment, socio-culture, economy and technology was established for evaluating environmental construction level of community (objective construction), and questionnaire was designed according to paper review for evaluating residential satisfaction (subjective satisfaction). The index system was divided into four layers: system (A), subsystems (B), categories (C), and indicators (D), and in total of 38 indicators was established. The Xihe community, affiliated to Nanfen district, Benxi City, Liaoning Province, China was selected as a case study. Results indicated that the community sustainability index related to objective environmental construction was 0.4355 and was classified as class Ⅲ (moderate); the community sustainability index related to the residential satisfaction was 0.4255, belonging to class Ⅲ. In conclusion, the sustainability of Xihe community was moderate and needed to be improved. Residential satisfaction was lower than objective environmental construction. The assessment index system established in this study is able to reflect the comprehensive sustainability of community and can be used to evaluate other similar communities' sustainability. 展开更多
关键词 community sustainability assessment index system objective environmental construction residential satisfaction Xihe community
在线阅读 下载PDF
DEVELOPING A PREFABRICATED LOW-CARBON CONSTRUCTION SYSTEM USING CROSS-LAMINATED TIMBER (CLT) PANELS FOR MULTISTOREY INNER-CITY INFILL HOUSING IN AUSTRALIA
18
作者 Steffen Lehmann 《Journal of Green Building》 2012年第3期131-150,共20页
Prefabricated engineered solid wood panel construction systems can sequester and store CO_(2).Modular cross-laminated timber(CLT,also called cross-lam)panels form the basis of low-carbon,engineered construction system... Prefabricated engineered solid wood panel construction systems can sequester and store CO_(2).Modular cross-laminated timber(CLT,also called cross-lam)panels form the basis of low-carbon,engineered construction systems using solid wood panels that can be used to build residential infill developments of 10 storeys or higher.Multi-apartment buildings of 4 to 10 storeys constructed entirely in timber,such as recently in Europe,are innovative,but their social and cultural acceptance in Australia and North America is at this stage still uncertain.Commercial utilisation is only possible if there is a demand and user acceptance.This paper explores the opportunities offered by an innovative low carbon construction system using cross-laminated timber(CLT)panels to improve the design and delivery of urban infill housing.CLT construction has been developed around 1996 in Austria:layers of timber boards are glued crosswise in different directions to increase loadbearing capacity.The paper describes a multi-disciplinary research project into cross-laminated timber panels which aims to transform the Australian construction and development industry,involving a range of key partners.This project will introduce cross-laminated timber panels as a way to build with a lightweight prefabricated low-carbon construction system that is advantageous for urban infill and residential buildings in the range of 4 to 8 stories height.The challenges,research questions and advantages of this new engineered timber system are explained,and a detailed research methodology for further research is presented. 展开更多
关键词 multi-storey infill housing low carbon construction system engineered timber cross-laminated timber(cross-lam CLT) modular prefabrication construction waste
在线阅读 下载PDF
Energy-saving technologies for construction machinery:a review of electro-hydraulic pump-valve coordinated system 被引量:12
19
作者 Zhe-ming TONG Shuang-shuang WU +4 位作者 Shui-guang TONG Yu-qing YUE Yuan-song LI Zheng-yu XU Yu-wei ZHONG 《Journal of Zhejiang University-Science A(Applied Physics & Engineering)》 SCIE EI CAS CSCD 2020年第5期331-349,共19页
With the rapid development of the global economy,more and more attention has been paid to the energy conservation of construction machinery.The hydraulic system is the key component of construction machinery,and impro... With the rapid development of the global economy,more and more attention has been paid to the energy conservation of construction machinery.The hydraulic system is the key component of construction machinery,and improving its energy utilization rate has become an important means to achieve energy conservation.In conventional valve-controlled or pump-controlled hydraulic systems of construction machinery,controllability and energy-saving performance typically cannot be considered at the same time.The pump-valve coordinated system combines the energy-saving characteristics of the pump-controlled system and the high-precision and high-frequency response of the valve-controlled system,which has the potential to become a primary research direction of electro-hydraulic systems.This review summarizes the recent research progress in energy-saving technologies based on pump-valve coordinated systems.Particularly,we discuss the structures of hydraulic systems in different categories of construction machinery,various control methods of the electro-hydraulic system,novel hydraulic hybrid energy regeneration systems,and key components.In addition,future directions and challenges of the pump-valve coordinated systems are described,such as independent metering system(IMS),common pressure rail(CPR),and hybrid power source(HPS). 展开更多
关键词 construction machinery Energy saving Pump-valve coordinated systems Control algorithm Hydraulic systems
原文传递
上一页 1 2 244 下一页 到第
使用帮助 返回顶部