Pseudo-excitation-method-based sensitivity analysis and optimization for vehicle ride comfort

被引：15

作者：

Xu, W. T. ^{[1
]}

Lin, J. H. ^{[1
]}

Zhang, Y. H. ^{[1
]}

Kennedy, D. ^{[2
]}

Williams, F. W. ^{[2
]}

机构：

[1] Dalian Univ Technol, Fac Vehicle Engn & Mech, State Key Lab Struct Anal Ind Equipment, Dalian 116023, Peoples R China

[2] Cardiff Univ, Cardiff Sch Engn, Cardiff, S Glam, Wales

来源：

ENGINEERING OPTIMIZATION | 2009年 / 41卷 / 07期

基金：

国家高技术研究发展计划(863计划); 中国国家自然科学基金;

关键词：

sensitivity analysis; pseudo excitation method; random vibration; vehicle ride comfort; DESIGN; EIGENVECTORS; EIGENVALUES; DERIVATIVES; CONSTRAINTS; SYSTEMS;

D O I：

10.1080/03052150902752066

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

In this article, sensitivity analysis formulae for optimizing vehicle suspension systems are derived using the pseudo excitation method (PEM). A spatial finite element model is used to describe the dynamic behaviour of a vehicle running on a randomly uneven road, of which the irregularity is assumed to be a Gaussian random process. Based on the random equations of motion with the right-hand side random acceleration replaced by a pseudo acceleration excitation, various first and second orders of sensitivity formulae are calculated conveniently by differentiating these equations. The optimal solutions when vehicle ride comfort is the objective function are derived by means of these flexibilities. The optimization efficiency and the computational accuracy are numerically justified.

引用

页码：699 / 711

页数：13

共 23 条

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[Anonymous], 1990, VEHICLE THEORY

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