Robust Performance Analysis of Active Suspension with Model Uncertainty Using Structured Singular Value,#mu# Approach

摘要

This paper presents a systematic approach for robust performance analysis of active suspension system. Firstly, the background information on H infinity #mu# control methods is briefly described. Secondly, the formula of the structured uncertainties of active suspension are given, and the difference between the maximum singular values and structured singular values of a transfer function matrix is discussed. Then the robust performance of an active suspension system in the presence of assumed parameter variation is analyzed. All the steps are illustrated by means of a numerical example of a railway car with lateral active suspension system.