摘要
设计灵敏度分析试验,以传递力、静位移、预载力等作为优化目标,选择哈默斯雷采样方法,对排气系统的约束模态、吊耳的静位移、预载力以及传递力峰值进行灵敏度分析,评价影响各个参数的主要因素。确定通过改变吊耳的动刚度来提高排气系统的振动性能,为随后排气系统振动性能的优化提供了依据。
Taking the driving system,static displacement and the preload as the optimal object,it establishes a sensitivity analysis experiment.Based on Hammosley sampling method,it analyzes the sensitivity such as the constraint mode of exhaust system,static displacement of lifting lug,preload and the peak of transmission force,evaluates the degree of influence of each parameter.It shows that changing the dynamic stiffness of the lifting lug can improve the vibration performance of the exhaust system,provides the reference for dynamic optimization of exhaust system.
作者
张兆元
胡习之
李岩
刘诗嘉
ZHANG Zhaoyuan;HU Xizhi;LI Yan;LIU Shijia(School of Mechanical and Automotive Engineering,South China University of Technology,Guangdong Guangzhou,510640,China)
出处
《机械设计与制造工程》
2018年第3期77-80,共4页
Machine Design and Manufacturing Engineering
关键词
灵敏度分析
约束模态
吊耳
动刚度
sensitivity analysis
constrained modes
lug
dynamic stiffness
