ROBUST PERFORMANCE ANALYSIS OF ACTIVE SUSPENSION WITH MODEL UNCERTAINTY USING STRUCTURED SINGULAR-VALUE, MU-APPROACH

This payer presents a systematic approach for robust performance analy sis of active suspension system. Firstly, the background information o n H -, mu control methods is briefly described. Secondly, the formula of the structured uncertainties of active suspension are given, and th e difference between the maximum singular values and structured singul ar 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 mean s of a numerical example of a railway car with lateral active suspensi on system.