典型文献
Uncertainty Analysis and Optimization of Quasi-Zero Stiffness Air Suspension Based on Polynomial Chaos Method
文献摘要：
To improve the vibration isolation performance of suspensions,various new structural forms of suspensions have been proposed.However,there is uncertainty in these new structure suspensions,so the deterministic research can-not reflect the performance of the suspension under actual operating conditions.In this paper,a quasi-zero stiffness isolator is used in automotive suspensions to form a new suspension-quasi-zero stiffness air suspension(QZSAS).Due to the strong nonlinearity and structural complexity of quasi-zero stiffness suspensions,changes in structural parameters may cause dramatic changes in suspension performance,so it is of practical importance to study the effect of structural parameter uncertainty on the suspension performance.In order to solve this problem,three suspension structural parameters d0,L0 and Pc0 are selected as random variables,and the polynomial chaos expansion(PCE)theory is used to solve the suspension performance parameters.The sensitivity of the performance parameters to different structural parameters was discussed and analyzed in the frequency domain.Furthermore,a multi-objec-tive optimization of the structural parameters d0,L0 and Pc0 of QZSAS was performed with the mean and variance of the root-mean-square(RMS)acceleration values as the optimization objectives.The optimization results show that there is an improvement of about 8％-10％in the mean value and about 40％-55％in the standard deviation of acceleration(RMS)values.This paper verifies the feasibility of the PCE method for solving the uncertainty problem of complex nonlinear systems,which provide a reference for the future structural design and optimization of such suspension systems.
文献关键词：
中图分类号：
作者姓名：
Xing Xu;Huan Liu;Xinwei Jiang;Akolbire Vincent Atindana
作者机构：
Automotive Engineering Research Institute,Jiangsu University,Zhenjiang 212013,China
文献出处：
引用格式：
[1]Xing Xu;Huan Liu;Xinwei Jiang;Akolbire Vincent Atindana-.Uncertainty Analysis and Optimization of Quasi-Zero Stiffness Air Suspension Based on Polynomial Chaos Method)[J].中国机械工程学报,2022(04):355-373
A类：
QZSAS,Pc0
B类：
Uncertainty,Analysis,Optimization,Quasi,Zero,Stiffness,Air,Suspension,Based,Polynomial,Chaos,Method,To,vibration,isolation,performance,suspensions,various,new,structural,forms,have,been,proposed,However,there,uncertainty,these,structure,deterministic,research,can,not,reflect,under,actual,operating,conditions,In,this,paper,quasi,zero,stiffness,isolator,used,automotive,air,Due,strong,nonlinearity,complexity,changes,parameters,may,cause,dramatic,practical,importance,study,effect,order,solve,problem,three,d0,L0,selected,random,variables,polynomial,chaos,expansion,PCE,theory,sensitivity,different,was,discussed,analyzed,frequency,domain,Furthermore,multi,optimization,performed,mean,variance,root,square,RMS,acceleration,values,objectives,results,show,that,improvement,about,standard,deviation,This,verifies,feasibility,method,solving,systems,which,provide,reference,future,design,such
AB值：
0.489843
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机标中图分类号，由域田数据科技根据网络公开资料自动分析生成，仅供学习研究参考。
