摘要
针对小型家用汽车盘式制动器的轻量化设计,对制动盘进行有限元分析,并进行多目标优化。通过灵敏度分析,建立制动盘各尺寸参数对制动性能及质量的贡献度,快速挑选出优化变量。以制动盘质量最轻、制动盘表面最高温度最低和最大等效应力值最小为目标函数,建立多目标优化数学模型。采用Ansys中基于控制精英策略的二代非支配排序遗传算法(Non-dominated Sorting Genetic Algorithms, NSGA-Ⅱ)混合变种对其进行优化,优化后进行仿真验证,制动盘质量减轻了29.2%,并在相同工况下试验,验证了仿真结果的正确性,实现了制动盘的轻量化,为盘式制动器设计提供参考。
Aiming at the lightweight design of the disc brake for small family cars, the finite element analysis and multi-objective optimization of the disc brake were carried out.Through the sensitivity analysis, the contribution degree of each size parameter of the brake disc to the braking performance and quality was established, and the optimization variables were quickly selected.Taking the lightest weight of the brake disc, the lowest surface temperature of the brake disc and the minimum maximum equivalent stress as the objective function, a multi-objective optimization mathematical model was established. NSGA-II hybrid variant algorithm based on the control elite strategy in Ansys was used to optimize the brake disc. After the optimization, the quality of the brake disc is reduced by 29.2% by simulation. The correctness of the simulation results is verified by the experiment under the same working condition, which realizes the lightweight of the brake disc and provides a reference for the design of the disc brake.
作者
王所国
沈精虎
石乐
WANG SuoGuo;SHEN JingHu;SHI Le(College of Mechanical and Electrical Engineering,Qingdao University,Qingdao 266000,China)
出处
《机械强度》
CAS
CSCD
北大核心
2023年第1期98-104,共7页
Journal of Mechanical Strength
关键词
盘式制动器
轻量化
多目标优化
灵敏度分析
Disc brake
Lightweight
Multi-objective optimization
Sensitivity analysis
作者简介
王所国,男,1997年2月生,山东莘县人,汉族,青岛大学机电工程学院硕士研究生,主要研究方向为机械结构有限元分析与优化;通信作者:沈精虎,男,1963年9月生,甘肃岷县人,汉族,青岛大学机电工程学院教授,硕士生导师,主要研究方向为机械CAD/CAM、机械结构有限元分析与优化、机器学习与人工智能。E-mail:15493899@qq.com。
