摘要
针对“传热学”“摩擦学原理”以及“电动汽车传动系统的结构与控制”等课程现场实验教学难以开展的问题,运用数值模拟技术对离合器换挡过程中换挡滑块的磨损量进行了有限元模拟仿真。采用响应面法设计仿真实验方案,对不同换挡力、接合套转速、摩擦系数作用下的换挡滑块磨损量进行计算;建立了换挡滑块磨损量的线性回归预测模型,并由此提出了通过控制换挡过程中的换挡力和滑块位移来保证自动机械变速器(AMT)使用寿命的多目标协同控制策略。经过多学科协同教学和数值仿真训练,不仅能够使学生将课本中的理论知识学以致用,同时培养了学生的自主创新意识和工程实践能力。
Aiming at the problem that it is difficult to carry out scene experiment of courses such as“Heat transfer”“Principles of tribology”and“Electric vehicle transmissions structure and control”,the finite element simulation of the wear of the shift slider during a clutch shifting process is carried out by using the numerical simulation technology.The simulation scheme is designed according to the response surface method and the wear calculations are performed under the action of different shifting forces,joint sleeve speeds and friction coefficients.The linear regression prediction model of wear is obtained.In addition,the multi-objective collaboration control strategy is obtained to ensure the service life of the automatic mechanical transmission(AMT)by controlling the shifting force and slider displacement during the gear shift process.Through the multi-disciplinary collaborative teaching and numerical simulation training,theoretical knowledge in textbooks is successfully applied in practice,and furthermore the students’independent innovation consciousness and the project practical ability are developed.
作者
刘雨薇
孙园植
王叶
叶福浩
付崇智
李秀明
LIU Yuwei;SUN Yuanzhi;WANG Ye;YE Fuhao;FU Chongzhi;LI Xiuming(School of Mechanical Electronic&Information Engineering,China University of Mining and Technology(Beijing),Beijing 100083,China;China North Vehicle Research Institute,Beijing 100072,China;Huawei Machine Co.,Ltd.,Dongguan 523808,China)
出处
《实验技术与管理》
CAS
北大核心
2022年第7期104-109,共6页
Experimental Technology and Management
基金
国家自然科学基金项目(52105232)
教育部产学研协同育人项目(202102122012,202101068002)
中央高校基本科研业务费专项资金项目(2022YQJD02)
中国矿业大学(北京)本科教育教学改革与研究项目(J21ZX05)。
关键词
换挡滑块
磨损预测
控制策略
数值模拟教学
shift slider
wear prediction
control strategy
numerical simulation teaching
