线控制动系统设计与分析虚拟仿真教学平台

Virtual Simulation Teaching Platform for Design and Analysis of Brake-by-Wire System

无人驾驶汽车线控底盘的设计方法与性能分析是车辆工程专业新工科教学的重要内容。本文为清晰展示线控制动系统的结构设计和性能分析过程,融合多款软件开发了用户界面友好的虚拟仿真教学平台。基于MATLAB GUI完成了平台人机界面设计,编写了回调函数,进行了线控制动系统的详细设计;基于AutoCAD设计了关键零部件的二维图纸;基于SOLIDWORKS搭建了三维模型;基于ANSYS进行了制动盘等关键零部件模态分析和瞬态力学性能分析。平台实现了设计过程与性能分析有效联接、可视化、直观显示,提升了学生面向新工科的线控底盘创新设计能力和性能分析方面的工程应用能力。

The design methods and performance analysis of chassis by wire for driverless vehicle are important for the new engineering teaching of the vehicle engineering specialty.In order to clearly show the structure design and performance analysis process of the brake-by-wire system,a user-friendly virtual simulation teaching platform was developed based on the multiple software.Firstly,the human-machine interface design of the platform was completed based on MATLAB GUI,showing design and analysis process,and the detailed design of the brake-by-wire system was carried out to write callback functions.Secondly,2D drawings of key components were drawn based on AutoCAD.Thirdly,3D models were built based on SOLIDWORKS to realize system movement process demonstration.Finally,the modal analysis and transient mechanical performance analysis of key components,such as brake disc,were carried out with ANSYS.The results show force changes of brake disc during braking and the possible failure forms under different modes.The platform realizes the integration and visualization of design process and performance analysis,and improves students’innovative design ability of new engineering and engineering application ability of performance analysis.