摘要
机械摩擦副的摩擦磨损是"机械设计"课程的重要教学内容。影响摩擦磨损的因素错综复杂,具有时空的跨尺度性,难以开展真实实验教学。以不同材料配对的线接触摩擦副和柱销-盘摩擦副为例,分别开展适用于网络平台使用的摩擦副复合磨损量和亚表面应力的模型及其数值计算方法研究,以及线接触复合磨损系数实验研究。建立模拟磨损量和亚表面应力网络实验平台,实现不同材料线接触摩擦副磨损量随时间变化以及柱销-盘摩擦副亚表面应力随载荷与摩擦系数变化仿真。实践验证了仿真算法快速,实验操作简单、实用,有助于学生理解零件摩擦磨损引起的各种失效。
Friction and wear of mechanical friction pairs are important teaching contents in the "Mechanical Design" course. The influencing factors on friction and wear are complex and have the cross-scale characteristic in time and space. Consequently, it is very difficult to carry out real experiment teaching. By taking the line contact friction pairs with different materials and a pin disk friction pair as examples, the models and the calculation methods are studied for the composite wear volume and the subsurface stress so that they can be applied on network platform. Additionally, the experiment on the composite wear coefficient of the line contacts is conducted. The virtual experimental platform is established to simulate the wear change of different material line contact friction pairs with time and the change of the subsurface stress of pin disk friction pairs with load and friction coefficient. The practice has proved that the simulation algorithms are fast and the experimental operation is simple and practical, which is helpful for students to understand various failures of parts caused by friction and wear.
作者
王顺
谭庆昌
寇尊权
WANG Shun;TAN Qingchang;KOU Zunquan(School of Mechanical and Aerospace Engineering,Jilin University,Changchun 130022,China)
出处
《实验技术与管理》
CAS
北大核心
2020年第3期125-128,共4页
Experimental Technology and Management
基金
吉林省高等教育教学改革研究课题重点项目(2019XZD031)。
关键词
虚拟仿真
摩擦副
磨损
亚表面应力
virtual simulation
friction pair
wear
subsurface stress
