湖南大学学报（自然科学版）2018，Vol.45Issue(2)：11-17,7.DOI:10.16339/j.cnki.hdxbzkb.2018.02.02
融合正向建模与反求计算的车用减振器建模技术研究
Research on Modeling Technology of Vehicle's Shock Absorber via Combined Forward Modeling and Reverse Solution
摘要
Abstract
In view of the limitations that the tuning of shock absorber costs an engineer who depends on experience much time and strength,the thought of reverse solution was introduced,and then the for-ward modeling idea of shock absorber and reverse solution of key parameters were studied.Firstly,accord-ing to the thought of combining finite element analysis and least squares,a characteristic forward model based on large deflection was established.Furthermore,the obtained analysis results clearly identify some significant parameters which have a large impact on the process of the tuning of shock absorber.Based on the damping characteristic curve of shock absorber,the reverse model was established,which takes the er-rors between the simulation and test data as the obj ective function and takes the key parameters as the un-known parameters.Finally,some parameters of throttle-slices which are important to valve deflection were identified by using GA.The simulation results of parametric model after reversing agree well with the test data.This study provides a theoretical foundation for parameter optimization of shock absorber,in the case of the unknown important parameters of shock absorber.Meanwhile,this method provides a basis for the tuning of damper performance.关键词
减振器/大挠度变形/正向建模/优化反求/遗传算法Key words
shock absorber/large deflection/forward modeling/optimized reverse/genetic algorithm分类
交通工程引用本文复制引用
崔庆佳,周兵,吴晓建,李宁,曾凡沂..融合正向建模与反求计算的车用减振器建模技术研究[J].湖南大学学报（自然科学版）,2018,45(2):11-17,7.基金项目
国家自然科学基金资助项目(51275162,51575167),National Natural Science Foundation of China(51275162,51575167) （51275162,51575167）
国家重点研发计划新能源重点汽车重点专项项目子课题(2016YFB0100903-2),National Key R&D Programs New Energy Vehicles Focus on Special Projects(2016YFB0100903-2) （2016YFB0100903-2）
