机械科学与技术2017，Vol.36Issue(5)：773-778,6.DOI:10.13433/j.cnki.1003-8728.2017.0519
悬架K&C特性响应的参数灵敏度分析及不确定性优化
Parameter Sensitivity Analysis and Uncertainty Optimization of Suspension K&C Characteristic Response
任程远 1赵亮 1郭孔辉2
作者信息
- 1. 湖南大学汽车车身先进设计制造国家重点实验室,长沙410082
- 2. 上汽通用五菱股份有限公司,广西柳州545007
- 折叠
摘要
Abstract
Due to the presence of geometric error,installation error,the actual hard point has certain fluctuation and uncertainty which cause the suspension K&C characteristic fluctuation bigger compared with the standard K&C characteristic.In view of the uncertainty analysis problem,mathematical models for Mcpherson suspension are built by using the attitude coordinate transformation based on the rigid body kinematics theory.Sobol method is used to analyze the suspension K&C characteristics sensitivity and find out the hard point of the impact.The interval analysis method is used to optimize parameters of the suspension structure which will improve the suspension K&C characteristic robustness and reduce the suspension K&C fluctuation compared with the standard K&C characteristic.The results show that this method has high robustness and practicability.关键词
区间分析/不确定性/Sobol法/灵敏度分析Key words
uncertainty analysis/sensitivity analysis/robustness/mathematical models/optimization分类
交通工程引用本文复制引用
任程远,赵亮,郭孔辉..悬架K&C特性响应的参数灵敏度分析及不确定性优化[J].机械科学与技术,2017,36(5):773-778,6.
