车轮多目标优化设计方法,涉及车辆工程技术领域,解决现有仅针对车轮的有限性能进行分析和优化、缺失参数化建模而导致优化空间有限以及没有联合调用各性能计算软件进行自动优化设计等问题,包括:车轮疲劳试验的拓扑优化、联合拓扑优化建模、疲劳性能分析、冲击性能分析、空气动力学性能分析和多目标优化的步骤。设置车轮动态弯曲疲劳试验、动态径向疲劳试验、冲锤正对辐条冲击试验、冲锤正对窗口冲击试验和车轮空气动力学分析五种工况;综合考虑车轮的强度、刚度、振动特性、疲劳寿命、疲劳寿命安全系数、冲击性能、空气动力性和轻量化性能等性能;通过有限元软件仿真计算各性能参数,并设置各性能参数为约束条件或目标函数对车轮进行优化设计。
The multi-objective optimization design method for wheels involves the field of vehicle engineering technology. It solves the problem of only analyzing and optimizing the limited performance of wheels, lacking parameterized modeling, which leads to limited optimization space, and not jointly calling various performance calculation software for automatic optimization design, etc. Questions include: topology optimization of wheel fatigue test, joint topology optimization modeling, fatigue performance analysis, impact performance analysis, aerodynamic performance analysis and multi-objective optimization steps. Set up five working conditions of wheel dynamic bending fatigue test, dynamic radial fatigue test, impact test of hammer facing spokes, impact test of hammer facing window and wheel aerodynamic analysis; comprehensively consider the strength, stiffness, vibration characteristics of the wheel, Fatigue life, fatigue life safety factor, impact performance, aerodynamics and lightweight performance; performance parameters are calculated through finite element software simulation, and each performance parameter is set as constraint conditions or objective functions to optimize the design of wheels.