首页 > 最新文献

Proceedings of the 2019 International Conference on Robotics, Intelligent Control and Artificial Intelligence最新文献

英文 中文
Research on anti-collision control of pure electric vehicles 纯电动汽车防撞控制研究
Keke Ouyang, Yanliang Li, Bo Yang
With the development of the automotive industry, the active safety of automobiles has received more and more attention, which is the most promising topic in automotive technology research. The vehicle active collision avoidance system is an early warning assistance system aimed at improving driving safety, and the electric vehicle is an emerging automobile industry. At present, there are still many problems in the research on the active safety collision avoidance system of pure electric vehicles. This paper is a fuzzy control strategy control method to improve the active safety of the car, effectively prevent the occurrence of traffic accidents, and improve the stability and comfort of the vehicle during high-speed driving. Among them, the mathematical model of two-degree-of-freedom vehicle is established, the control strategy of vehicle anti-collision is studied, the Simulink model of the vehicle is constructed, and the fuzzy control is simulated and analyzed. It can be seen from the simulation results that the fuzzy control strategy used can improve the car collision.
随着汽车工业的发展,汽车主动安全问题越来越受到人们的重视,成为汽车技术研究中最具发展前景的课题。汽车主动防撞系统是一种旨在提高驾驶安全性的预警辅助系统,而电动汽车是一种新兴的汽车产业。目前,纯电动汽车主动安全避碰系统的研究还存在许多问题。本文采用模糊控制策略的控制方法来提高汽车的主动安全性,有效防止交通事故的发生,提高车辆在高速行驶过程中的稳定性和舒适性。其中,建立了二自由度汽车的数学模型,研究了汽车防撞控制策略,构建了汽车的Simulink模型,并对模糊控制进行了仿真分析。从仿真结果可以看出,所采用的模糊控制策略可以改善汽车碰撞。
{"title":"Research on anti-collision control of pure electric vehicles","authors":"Keke Ouyang, Yanliang Li, Bo Yang","doi":"10.1145/3366194.3366308","DOIUrl":"https://doi.org/10.1145/3366194.3366308","url":null,"abstract":"With the development of the automotive industry, the active safety of automobiles has received more and more attention, which is the most promising topic in automotive technology research. The vehicle active collision avoidance system is an early warning assistance system aimed at improving driving safety, and the electric vehicle is an emerging automobile industry. At present, there are still many problems in the research on the active safety collision avoidance system of pure electric vehicles. This paper is a fuzzy control strategy control method to improve the active safety of the car, effectively prevent the occurrence of traffic accidents, and improve the stability and comfort of the vehicle during high-speed driving. Among them, the mathematical model of two-degree-of-freedom vehicle is established, the control strategy of vehicle anti-collision is studied, the Simulink model of the vehicle is constructed, and the fuzzy control is simulated and analyzed. It can be seen from the simulation results that the fuzzy control strategy used can improve the car collision.","PeriodicalId":105852,"journal":{"name":"Proceedings of the 2019 International Conference on Robotics, Intelligent Control and Artificial Intelligence","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2019-09-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129185621","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Lightweight design and static strength analysis of battery box for electric vehicle 电动汽车电池箱轻量化设计及静强度分析
Lingli Chen, Xiaoyu Zhao
In this paper, the lightweight design and static strength analysis of electric vehicle battery box were replaced by composite materials instead of traditional metal materials. Firstly, the finite element model of the battery box was established by using ABAQUS. The battery box was geometrically cleaned, the composite material of the box structure and the foam material of the battery module were defined, and the grid was divided according to the process of finite element analysis. Then, based on the actual application, the boundary conditions were set and the load was applied to solve the problem. Finally, the stress and failure factor of the composite battery box under the sudden braking and sharp turn of the bumpy road were analyzed, and the strength of the battery box was checked. The results show that under the two combined conditions, the maximum stress of the battery box is less than the specified stress of the composite material, and the failure factor is much less than 1, meeting the strength requirements of the battery box.
本文采用复合材料代替传统金属材料,对电动汽车电池箱进行轻量化设计和静强度分析。首先,利用ABAQUS软件建立了电池箱的有限元模型。对电池箱体进行几何清洗,定义箱体结构复合材料和电池模块泡沫材料,并根据有限元分析过程划分网格。然后,根据实际应用,设置边界条件,施加载荷求解问题。最后,分析了复合材料电池箱在颠簸路面急刹车急转弯下的应力和失效因素,并对电池箱进行了强度校核。结果表明,在两种组合条件下,电池箱的最大应力小于复合材料的规定应力,失效系数远小于1,满足电池箱的强度要求。
{"title":"Lightweight design and static strength analysis of battery box for electric vehicle","authors":"Lingli Chen, Xiaoyu Zhao","doi":"10.1145/3366194.3366244","DOIUrl":"https://doi.org/10.1145/3366194.3366244","url":null,"abstract":"In this paper, the lightweight design and static strength analysis of electric vehicle battery box were replaced by composite materials instead of traditional metal materials. Firstly, the finite element model of the battery box was established by using ABAQUS. The battery box was geometrically cleaned, the composite material of the box structure and the foam material of the battery module were defined, and the grid was divided according to the process of finite element analysis. Then, based on the actual application, the boundary conditions were set and the load was applied to solve the problem. Finally, the stress and failure factor of the composite battery box under the sudden braking and sharp turn of the bumpy road were analyzed, and the strength of the battery box was checked. The results show that under the two combined conditions, the maximum stress of the battery box is less than the specified stress of the composite material, and the failure factor is much less than 1, meeting the strength requirements of the battery box.","PeriodicalId":105852,"journal":{"name":"Proceedings of the 2019 International Conference on Robotics, Intelligent Control and Artificial Intelligence","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2019-09-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133212984","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
Analysis of Multi-mode Inertial Mechanism of Automotive Door Lock Based on ADAMS 基于ADAMS的汽车门锁多模惯性机构分析
Xiaojie Huang, Lubin Hang, Mingyuan Wang, Xiaobo Huang, Qiansheng Wang, Zhe Liu, Yong Chen, Yong Hua, Jinliang Du
An inertial protection mechanism embedded in the vehicle door latch is analyzed to avoid door's accidental open when the vehicle is hit from the side. The structural design principle of the inertial protection mechanism and its two different configuration in two working modes are analyzed through the mechanism sketch. The switching process of the mechanism between two modes is studied during the vehicle collision. A simulated vehicle detection standard is used as an initial condition for dynamic simulation of the inertial protection mechanism. The simulation results show that the inertial protection mechanism can be switched to the inertia protection mode in 0.2ms, The mechanism ensures the safety of the passengers inside the vehicle by overcoming the risk of the side door accidentally open when the vehicle is hit by the side.
分析了一种嵌入车门插销的惯性保护机构,以避免车辆被侧面撞击时车门意外打开。通过机构示意图分析了惯性保护机构的结构设计原理及其在两种工作模式下的两种不同配置。研究了车辆碰撞过程中机构在两种模式之间的切换过程。采用模拟车辆检测标准作为惯性保护机构动态仿真的初始条件。仿真结果表明,惯性保护机构可在0.2ms内切换到惯性保护模式,克服了车辆被侧面撞击时侧门不小心打开的风险,保证了车内乘客的安全。
{"title":"Analysis of Multi-mode Inertial Mechanism of Automotive Door Lock Based on ADAMS","authors":"Xiaojie Huang, Lubin Hang, Mingyuan Wang, Xiaobo Huang, Qiansheng Wang, Zhe Liu, Yong Chen, Yong Hua, Jinliang Du","doi":"10.1145/3366194.3366217","DOIUrl":"https://doi.org/10.1145/3366194.3366217","url":null,"abstract":"An inertial protection mechanism embedded in the vehicle door latch is analyzed to avoid door's accidental open when the vehicle is hit from the side. The structural design principle of the inertial protection mechanism and its two different configuration in two working modes are analyzed through the mechanism sketch. The switching process of the mechanism between two modes is studied during the vehicle collision. A simulated vehicle detection standard is used as an initial condition for dynamic simulation of the inertial protection mechanism. The simulation results show that the inertial protection mechanism can be switched to the inertia protection mode in 0.2ms, The mechanism ensures the safety of the passengers inside the vehicle by overcoming the risk of the side door accidentally open when the vehicle is hit by the side.","PeriodicalId":105852,"journal":{"name":"Proceedings of the 2019 International Conference on Robotics, Intelligent Control and Artificial Intelligence","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2019-09-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133219976","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 2
Pillbot: a soft origami robot inspired by pill bugs 药丸机器人:一种软折纸机器人,灵感来自于药丸虫
Chengcheng Zhang, Jianmin Zhou, Lining Sun, Guoqing Jin
In this paper, we present the design, fabrication processes, and control of a new biomimetic origami robot-Pillbot inspired by the pill bugs (Armadillidium vulgare). The pill bugs can travel effectively along pile of dead leaves, weeds, and most nature environment and the biological structures of the pill bugs fit the practical, soft and flexible design concept of the soft robotics. This biological case can be applied to soft robots to overcome the real harsh natural environment by three bionic designs: 1) flexible origami exoskeleton, 2) soft internal muscles, 3) bionic pereiopods. The origami exoskeleton is used to protect the body and reduce the friction between the robot surface and the environment. The soft internal muscles support the completion of the corresponding function with the exoskeleton and other structures of the robot. The bionic pereiopods ensure that the Pillbot can perform a variety of crawling movements. As a result, Pillbot can crawl, turn effective in the real environment, and the innovative designs for Pillbot will be applied to soft robots that are used in a harsh realistic environment.
本文介绍了一种新型仿生折纸机器人——“药丸机器人”(Armadillidium vulgare)。药丸虫可以在枯叶堆、杂草堆和大多数自然环境中有效移动,药丸虫的生物结构符合软机器人的实用、柔软和灵活的设计理念。该仿生案例可应用于软体机器人,通过三种仿生设计:1)柔性折纸外骨骼,2)柔软的内部肌肉,3)仿生感觉足。折纸外骨骼用于保护身体,减少机器人表面与环境之间的摩擦。柔软的内部肌肉支撑着机器人与外骨骼和其他结构完成相应的功能。仿生感知足确保Pillbot可以执行各种爬行动作。因此,Pillbot可以在真实环境中爬行、转弯,并且Pillbot的创新设计将应用于在严酷的现实环境中使用的软体机器人。
{"title":"Pillbot: a soft origami robot inspired by pill bugs","authors":"Chengcheng Zhang, Jianmin Zhou, Lining Sun, Guoqing Jin","doi":"10.1145/3366194.3366315","DOIUrl":"https://doi.org/10.1145/3366194.3366315","url":null,"abstract":"In this paper, we present the design, fabrication processes, and control of a new biomimetic origami robot-Pillbot inspired by the pill bugs (Armadillidium vulgare). The pill bugs can travel effectively along pile of dead leaves, weeds, and most nature environment and the biological structures of the pill bugs fit the practical, soft and flexible design concept of the soft robotics. This biological case can be applied to soft robots to overcome the real harsh natural environment by three bionic designs: 1) flexible origami exoskeleton, 2) soft internal muscles, 3) bionic pereiopods. The origami exoskeleton is used to protect the body and reduce the friction between the robot surface and the environment. The soft internal muscles support the completion of the corresponding function with the exoskeleton and other structures of the robot. The bionic pereiopods ensure that the Pillbot can perform a variety of crawling movements. As a result, Pillbot can crawl, turn effective in the real environment, and the innovative designs for Pillbot will be applied to soft robots that are used in a harsh realistic environment.","PeriodicalId":105852,"journal":{"name":"Proceedings of the 2019 International Conference on Robotics, Intelligent Control and Artificial Intelligence","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2019-09-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127566052","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 2
Structural Design and Finite Element Analysis of a Vortex Jet Power Vehicle 涡喷动力飞行器结构设计与有限元分析
Mingrui Fu, Q. Guo, Zhenyi Cheng
Based on the existing unmanned aerial vehicles, this paper designs an unmanned aerial vehicle driven by turbojet power. According to the shortcomings of short endurance and low load capacity of motor-driven aircraft at present. With fuel as power source and micro-turbojet engine as driving force, the structure of aircraft is optimized through rational layout of micro-turbojet engine to achieve high power density ratio power output of aircraft. According to the designed aircraft structure, the finite element software ANSYS Workbench is used to carry out structural static analysis and modal analysis of the aircraft. The displacement nephogram, stress nephogram and safety factor nephogram of the flight structure are obtained under the condition of full load of the aircraft, which can guide the optimal design of the aircraft.
本文在现有无人机的基础上,设计了一种以涡喷发动力驱动的无人机。针对目前机动飞机续航时间短、承载能力低的缺点。以燃油为动力源,以微涡喷发动机为动力,通过合理布局微涡喷发动机,优化飞机结构,实现飞机高功率密度比功率输出。根据设计的飞机结构,利用有限元软件ANSYS Workbench对飞机进行结构静力分析和模态分析。得到了飞机满载状态下飞行结构的位移云图、应力云图和安全系数云图,可以指导飞机的优化设计。
{"title":"Structural Design and Finite Element Analysis of a Vortex Jet Power Vehicle","authors":"Mingrui Fu, Q. Guo, Zhenyi Cheng","doi":"10.1145/3366194.3366321","DOIUrl":"https://doi.org/10.1145/3366194.3366321","url":null,"abstract":"Based on the existing unmanned aerial vehicles, this paper designs an unmanned aerial vehicle driven by turbojet power. According to the shortcomings of short endurance and low load capacity of motor-driven aircraft at present. With fuel as power source and micro-turbojet engine as driving force, the structure of aircraft is optimized through rational layout of micro-turbojet engine to achieve high power density ratio power output of aircraft. According to the designed aircraft structure, the finite element software ANSYS Workbench is used to carry out structural static analysis and modal analysis of the aircraft. The displacement nephogram, stress nephogram and safety factor nephogram of the flight structure are obtained under the condition of full load of the aircraft, which can guide the optimal design of the aircraft.","PeriodicalId":105852,"journal":{"name":"Proceedings of the 2019 International Conference on Robotics, Intelligent Control and Artificial Intelligence","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2019-09-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115796856","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Five-axis CNC machine tool contour error control method 五轴数控机床轮廓误差控制方法
Le Yang, Liqiang Zhang, Dongdong Li
In the five-axis CNC machining, various errors caused by factors such as geometrical accuracy and dynamic characteristics of the machine tool will eventually appear as the contour error of the part. Therefore, controlling and compensating for contour errors is of great significance. This paper applies the D-H method in robot kinematics to the error modeling of CNC machine tools, and this paper takes the double turntable five-axis machine tool as the research object. In this paper, by establishing a kinematics positive solution model, the law of the contour error of the tool tip and the contour error of the tool orientation are revealed, which provides a theoretical basis for the contour error compensation control. Based on this, a contour error compensation control method is designed. Simulation experiments show that the control method can effectively reduce the contour error.
在五轴数控加工中,由机床的几何精度和动态特性等因素引起的各种误差最终都会以零件的轮廓误差的形式出现。因此,控制和补偿轮廓误差具有重要意义。本文将机器人运动学中的D-H方法应用于数控机床的误差建模,并以双转台五轴机床为研究对象。本文通过建立运动学正解模型,揭示了刀尖轮廓误差和刀具方位轮廓误差的变化规律,为轮廓误差补偿控制提供了理论依据。在此基础上,设计了轮廓误差补偿控制方法。仿真实验表明,该控制方法能有效地减小轮廓误差。
{"title":"Five-axis CNC machine tool contour error control method","authors":"Le Yang, Liqiang Zhang, Dongdong Li","doi":"10.1145/3366194.3366197","DOIUrl":"https://doi.org/10.1145/3366194.3366197","url":null,"abstract":"In the five-axis CNC machining, various errors caused by factors such as geometrical accuracy and dynamic characteristics of the machine tool will eventually appear as the contour error of the part. Therefore, controlling and compensating for contour errors is of great significance. This paper applies the D-H method in robot kinematics to the error modeling of CNC machine tools, and this paper takes the double turntable five-axis machine tool as the research object. In this paper, by establishing a kinematics positive solution model, the law of the contour error of the tool tip and the contour error of the tool orientation are revealed, which provides a theoretical basis for the contour error compensation control. Based on this, a contour error compensation control method is designed. Simulation experiments show that the control method can effectively reduce the contour error.","PeriodicalId":105852,"journal":{"name":"Proceedings of the 2019 International Conference on Robotics, Intelligent Control and Artificial Intelligence","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2019-09-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114518223","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 2
Kinematic Performance Analyses of a Symmetrical 4-URU Parallel Mechanism 对称4-URU并联机构的运动性能分析
Qiangqiang Zhang, Yong-xiu Xu, Fei Dong, Yan Wang
After verifying the degrees of freedom (DOF) of the symmetrical 4-URU parallel mechanism based on the screw theory, the forward and inverse position models of the mechanism are solved. The workspace is then obtained by the boundary search algorithm. The singularity of the mechanism is solved. The above analyses and results can provide references for mechanism mechanics analysis, structure design and prototype development.
基于螺旋理论对对称4-URU并联机构的自由度进行验证后,求解了该机构的正、逆位置模型。然后通过边界搜索算法获得工作空间。解决了机构的奇异性问题。以上分析结果可为机构力学分析、结构设计和样机研制提供参考。
{"title":"Kinematic Performance Analyses of a Symmetrical 4-URU Parallel Mechanism","authors":"Qiangqiang Zhang, Yong-xiu Xu, Fei Dong, Yan Wang","doi":"10.1145/3366194.3366224","DOIUrl":"https://doi.org/10.1145/3366194.3366224","url":null,"abstract":"After verifying the degrees of freedom (DOF) of the symmetrical 4-URU parallel mechanism based on the screw theory, the forward and inverse position models of the mechanism are solved. The workspace is then obtained by the boundary search algorithm. The singularity of the mechanism is solved. The above analyses and results can provide references for mechanism mechanics analysis, structure design and prototype development.","PeriodicalId":105852,"journal":{"name":"Proceedings of the 2019 International Conference on Robotics, Intelligent Control and Artificial Intelligence","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2019-09-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126244507","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
A Multi-mode Parallel Mechanism with Kinematically Bifurcated Closed-chains 具有运动分岔闭链的多模并联机构
Wang Yan, Xu Yong, Dong Fei
Stretchable mechanism based on the variable degree of freedom, multi-axis linkage machine tool and gait flexible emerging reconfigurable equipment such as mobile devices of actuator design problem, this paper designs the movement bifurcation closed chain pattern parallel mechanism, and based on screw theory of bifurcation closed chain, including bifurcation of closed cone of mixed branched chain and many kinds of DOF(degree of freedom) parallel mechanism are analyzed.In this paper, we present a bifurcation closed chain of URRC(U-universal joint, R-rotating pair, C-cylinder pair) configuration, which has two degrees of freedom instantaneous motion when it is in singular configuration, and one degree of freedom continuous rotation of the whole space or one degree of freedom plane continuous motion when it is in general configuration. Furthermore, URRC bifurcation closed chain was connected with 4 DOF PRRR (P-prismatic pair) open chain to obtain a hybrid branched chain with one constraint couple and one constraint line vector. Finally, three symmetrically arranged URRC-PRRR and mixed branch chains assembled into a motion bifurcation parallel mechanism, which have four variable motion modes of 2R3T, 2R2T, 2R1T and 3R1T (T-translation, R-rotation).
基于可变自由度可拉伸机构、多轴联动机床和步态柔性等新兴可重构设备的移动装置的执行机构设计问题,本文设计了运动分岔闭链模式并联机构,并基于分岔闭链螺旋理论,对包括分岔闭锥型混合支链和多种自由度(自由度)并联机构进行了分析。本文给出了一种URRC(u -万向节,r -转动副,c -圆柱副)构型的分岔闭链,该链在奇异构型下具有两自由度瞬时运动,在一般构型下具有全空间的一自由度连续旋转或一自由度平面连续运动。在此基础上,将URRC分岔闭链与4自由度PRRR (P-prismatic pair)开链连接,得到具有一个约束对和一个约束线矢量的混合支链。最后,将三个对称排列的URRC-PRRR和混合分支链组装成一个运动分岔并联机构,该机构具有2R3T、2R2T、2R1T和3R1T四种可变运动模式(t -平移,r -旋转)。
{"title":"A Multi-mode Parallel Mechanism with Kinematically Bifurcated Closed-chains","authors":"Wang Yan, Xu Yong, Dong Fei","doi":"10.1145/3366194.3366227","DOIUrl":"https://doi.org/10.1145/3366194.3366227","url":null,"abstract":"Stretchable mechanism based on the variable degree of freedom, multi-axis linkage machine tool and gait flexible emerging reconfigurable equipment such as mobile devices of actuator design problem, this paper designs the movement bifurcation closed chain pattern parallel mechanism, and based on screw theory of bifurcation closed chain, including bifurcation of closed cone of mixed branched chain and many kinds of DOF(degree of freedom) parallel mechanism are analyzed.In this paper, we present a bifurcation closed chain of URRC(U-universal joint, R-rotating pair, C-cylinder pair) configuration, which has two degrees of freedom instantaneous motion when it is in singular configuration, and one degree of freedom continuous rotation of the whole space or one degree of freedom plane continuous motion when it is in general configuration. Furthermore, URRC bifurcation closed chain was connected with 4 DOF PRRR (P-prismatic pair) open chain to obtain a hybrid branched chain with one constraint couple and one constraint line vector. Finally, three symmetrically arranged URRC-PRRR and mixed branch chains assembled into a motion bifurcation parallel mechanism, which have four variable motion modes of 2R3T, 2R2T, 2R1T and 3R1T (T-translation, R-rotation).","PeriodicalId":105852,"journal":{"name":"Proceedings of the 2019 International Conference on Robotics, Intelligent Control and Artificial Intelligence","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2019-09-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121781638","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Design of Rapid Battery Pre-test Diagnostic Process 电池快速预试诊断流程设计
Zihou Liu, Xiao Yan, Bixiong Huang, Gengjiong Wang, Zhongcai Liu
WIith the increasing aging of electric vehicle batteries in large quantities, rapid pre-test diagnosis of power battery modules and screening of defective batteries have become market demand. This paper was based on the portable fast battery diagnostic instrument, which quickly checked the lithium iron phosphate battery packs with different degrees of aging to determine whether the battery management system and the battery modules were connected properly. Furthermore, the constant current discharge curve of the battery was analyzed, and the internal resistance of each single cell in the battery module was obtained, thereby characterizing the difference in the aging degree of different single cells. Finally, the same battery module was tested using a portable fast battery diagnostic device. The verification found that after the battery management system and the single battery connection problem were eliminated, the portable device obtained the same result under different detection conditions, and the battery module was aged. The single cell was judged to be a problematic single cell because the internal resistance was too large and the open circuit voltage was too low. The portable device has low cost, simple operation, convenient and fast, and is suitable for rapid troubleshooting and internal resistance detection of the battery module in the field, and does not affect the life of the battery pack itself. The results of the fast battery diagnostic process are reliable and can provide a reference for the promotion of the rapid diagnosis of power batteries.
随着电动汽车电池的大量老化,对动力电池模块进行快速预试诊断和缺陷电池的筛选已成为市场需求。本文以便携式电池快速诊断仪为基础,对不同老化程度的磷酸铁锂电池组进行快速检查,判断电池管理系统和电池模块连接是否正常。进一步分析了电池的恒流放电曲线,得到了电池模块中各个单体电池的内阻,从而表征了不同单体电池老化程度的差异。最后,使用便携式快速电池诊断设备对同一电池模块进行测试。验证发现,在消除电池管理系统和单体电池连接问题后,便携式设备在不同检测条件下获得的结果相同,且电池模块老化。由于内阻过大,开路电压过低,判断该单体电池为问题单体电池。本便携式设备成本低,操作简单,方便快捷,适用于现场电池模块的快速故障排除和内阻检测,且不影响电池组本身的使用寿命。电池快速诊断过程结果可靠,可为推进动力电池快速诊断提供参考。
{"title":"Design of Rapid Battery Pre-test Diagnostic Process","authors":"Zihou Liu, Xiao Yan, Bixiong Huang, Gengjiong Wang, Zhongcai Liu","doi":"10.1145/3366194.3366255","DOIUrl":"https://doi.org/10.1145/3366194.3366255","url":null,"abstract":"WIith the increasing aging of electric vehicle batteries in large quantities, rapid pre-test diagnosis of power battery modules and screening of defective batteries have become market demand. This paper was based on the portable fast battery diagnostic instrument, which quickly checked the lithium iron phosphate battery packs with different degrees of aging to determine whether the battery management system and the battery modules were connected properly. Furthermore, the constant current discharge curve of the battery was analyzed, and the internal resistance of each single cell in the battery module was obtained, thereby characterizing the difference in the aging degree of different single cells. Finally, the same battery module was tested using a portable fast battery diagnostic device. The verification found that after the battery management system and the single battery connection problem were eliminated, the portable device obtained the same result under different detection conditions, and the battery module was aged. The single cell was judged to be a problematic single cell because the internal resistance was too large and the open circuit voltage was too low. The portable device has low cost, simple operation, convenient and fast, and is suitable for rapid troubleshooting and internal resistance detection of the battery module in the field, and does not affect the life of the battery pack itself. The results of the fast battery diagnostic process are reliable and can provide a reference for the promotion of the rapid diagnosis of power batteries.","PeriodicalId":105852,"journal":{"name":"Proceedings of the 2019 International Conference on Robotics, Intelligent Control and Artificial Intelligence","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2019-09-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122374722","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Simulation Research on Microscopic Characteristics of Elliptical Vibration Turning 椭圆振动车削微观特性仿真研究
Dongsheng Guo, Minliang Zhang
This paper presented the elliptical vibration turning (EVT) and conventional turning (CT) process of high-strength aluminum alloy material Al7050-T7451 by establishing the finite element models. The characteristics of equivalent stress distribution were analyzed in cutting area during EVT process. Furthermore, the microscopic cutting characteristics of elliptical vibration turning such as shear angle, chip morphology and temperature distribution of the tool rake face were further studied and compared with the ordinary turning process. The simulation results showed that the stress distribution was in a dynamic change process during elliptical vibration turning. Compared with conventional cutting, EVT technology can increase the shear angle, and the chip formed in the EVT process was thinner and had larger bending degree. Therefore, EVT technology has important application value in prolonging the service life of tools and improving the cutting performance of plastic materials.
通过建立有限元模型,研究了高强度铝合金材料Al7050-T7451的椭圆振动车削(EVT)和常规车削(CT)工艺。分析了EVT加工过程中切削区等效应力分布特征。进一步研究了椭圆振动车削过程中刀具前刀面的剪切角、切屑形貌和温度分布等微观切削特性,并与普通车削过程进行了比较。仿真结果表明,椭圆振动车削过程中的应力分布处于动态变化过程。与常规切削相比,EVT技术可以增加剪切角,且EVT工艺形成的切屑更薄,弯曲程度更大。因此,EVT技术在延长刀具使用寿命、提高塑料材料的切削性能方面具有重要的应用价值。
{"title":"Simulation Research on Microscopic Characteristics of Elliptical Vibration Turning","authors":"Dongsheng Guo, Minliang Zhang","doi":"10.1145/3366194.3366195","DOIUrl":"https://doi.org/10.1145/3366194.3366195","url":null,"abstract":"This paper presented the elliptical vibration turning (EVT) and conventional turning (CT) process of high-strength aluminum alloy material Al7050-T7451 by establishing the finite element models. The characteristics of equivalent stress distribution were analyzed in cutting area during EVT process. Furthermore, the microscopic cutting characteristics of elliptical vibration turning such as shear angle, chip morphology and temperature distribution of the tool rake face were further studied and compared with the ordinary turning process. The simulation results showed that the stress distribution was in a dynamic change process during elliptical vibration turning. Compared with conventional cutting, EVT technology can increase the shear angle, and the chip formed in the EVT process was thinner and had larger bending degree. Therefore, EVT technology has important application value in prolonging the service life of tools and improving the cutting performance of plastic materials.","PeriodicalId":105852,"journal":{"name":"Proceedings of the 2019 International Conference on Robotics, Intelligent Control and Artificial Intelligence","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2019-09-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128621336","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
期刊
Proceedings of the 2019 International Conference on Robotics, Intelligent Control and Artificial Intelligence
全部 Acc. Chem. Res. ACS Applied Bio Materials ACS Appl. Electron. Mater. ACS Appl. Energy Mater. ACS Appl. Mater. Interfaces ACS Appl. Nano Mater. ACS Appl. Polym. Mater. ACS BIOMATER-SCI ENG ACS Catal. ACS Cent. Sci. ACS Chem. Biol. ACS Chemical Health & Safety ACS Chem. Neurosci. ACS Comb. Sci. ACS Earth Space Chem. ACS Energy Lett. ACS Infect. Dis. ACS Macro Lett. ACS Mater. Lett. ACS Med. Chem. Lett. ACS Nano ACS Omega ACS Photonics ACS Sens. ACS Sustainable Chem. Eng. ACS Synth. Biol. Anal. Chem. BIOCHEMISTRY-US Bioconjugate Chem. BIOMACROMOLECULES Chem. Res. Toxicol. Chem. Rev. Chem. Mater. CRYST GROWTH DES ENERG FUEL Environ. Sci. Technol. Environ. Sci. Technol. Lett. Eur. J. Inorg. Chem. IND ENG CHEM RES Inorg. Chem. J. Agric. Food. Chem. J. Chem. Eng. Data J. Chem. Educ. J. Chem. Inf. Model. J. Chem. Theory Comput. J. Med. Chem. J. Nat. Prod. J PROTEOME RES J. Am. Chem. Soc. LANGMUIR MACROMOLECULES Mol. Pharmaceutics Nano Lett. Org. Lett. ORG PROCESS RES DEV ORGANOMETALLICS J. Org. Chem. J. Phys. Chem. J. Phys. Chem. A J. Phys. Chem. B J. Phys. Chem. C J. Phys. Chem. Lett. Analyst Anal. Methods Biomater. Sci. Catal. Sci. Technol. Chem. Commun. Chem. Soc. Rev. CHEM EDUC RES PRACT CRYSTENGCOMM Dalton Trans. Energy Environ. Sci. ENVIRON SCI-NANO ENVIRON SCI-PROC IMP ENVIRON SCI-WAT RES Faraday Discuss. Food Funct. Green Chem. Inorg. Chem. Front. Integr. Biol. J. Anal. At. Spectrom. J. Mater. Chem. A J. Mater. Chem. B J. Mater. Chem. C Lab Chip Mater. Chem. Front. Mater. Horiz. MEDCHEMCOMM Metallomics Mol. Biosyst. Mol. Syst. Des. Eng. Nanoscale Nanoscale Horiz. Nat. Prod. Rep. New J. Chem. Org. Biomol. Chem. Org. Chem. Front. PHOTOCH PHOTOBIO SCI PCCP Polym. Chem.
×
引用
GB/T 7714-2015
复制
MLA
复制
APA
复制
导出至
BibTeX EndNote RefMan NoteFirst NoteExpress
×
0
微信
客服QQ
Book学术公众号 扫码关注我们
反馈
×
意见反馈
请填写您的意见或建议
请填写您的手机或邮箱
×
提示
您的信息不完整,为了账户安全,请先补充。
现在去补充
×
提示
您因"违规操作"
具体请查看互助需知
我知道了
×
提示
现在去查看 取消
×
提示
确定
Book学术官方微信
Book学术文献互助
Book学术文献互助群
群 号:481959085
Book学术
文献互助 智能选刊 最新文献 互助须知 联系我们:info@booksci.cn
Book学术提供免费学术资源搜索服务,方便国内外学者检索中英文文献。致力于提供最便捷和优质的服务体验。
Copyright © 2023 Book学术 All rights reserved.
ghs 京公网安备 11010802042870号 京ICP备2023020795号-1