汽车盘式制动器多目标拓扑优化设计
Multi-objective topology optimization design for automotive disc brakes
李天慈 1张丹1
作者信息
- 1. 江苏理工学院 汽车与交通工程学院,江苏 常州 213001
- 折叠
摘要
以汽车盘式制动器为研究对象,基于变密度法拓扑优化理论进行设计,实现了刚度最大化和频率提高的优化目标.采用折衷规划法建立综合目标函数,运用灰色关联分析法确定子目标权重系数,对盘式制动器主要零部件卡钳和支架进行拓扑优化.分析结果显示:改进后卡钳、支架的刚度和强度性能符合国家标准;卡钳、支架的动态性能均有所提高,且固有频率避开了共振区域;卡钳、支架质量共减小11%.证明了设计的可行性.
Abstract
Taking the automotive disc brake as the research object,based on the topology optimization theory of variable density method,the optimization objectives of maximization of stiffness and increase of frequency are re-alized.The comprehensive objective function is established by using the compromise planning method,the grey correlation analysis method is applied to determine the sub-objective weight coefficients,and topology optimiza-tion is carried out for calipers and brackets of the main components of disc brakes.The results of the analysis show that the stiffness and strength properties of the improved calipers and brackets meet the national standards.The dynamics of the calipers and brackets have been improved,the intrinsic frequency avoids the resonance re-gion,the mass of caliper and bracket is reduced by 11%.The feasibility of the design is proved.
关键词
盘式制动器/多目标拓扑优化/折衷规划法/灰色关联分析法Key words
disc brakes/multi-objective topology optimization/compromise programming method/grey correla-tion analysis引用本文复制引用
基金项目
国家自然科学基金项目(11802108)
常州市基础研究计划(CJ2022066)
出版年
2024
NETL
NSTL
万方数据