A computational method to robust vibration control of vehicle engine-body system using Haar wavelets

This paper deals with the modelling of engine-body vibration structure to robust control of bounce and pitch vibrations using Haar wavelets. The authors´ attention is focused on development of the Haar wavelet-based robust optimal control for vibration reduction of the engine-body system computationally that guarantee desired L₂ gain performance. The Haar wavelet properties are introduced and utilized to find the approximate solutions of trajectories and robust optimal control by solving only algebraic equations instead of solving the Riccati differential equation. Numerical results are presented to illustrate the advantage of the approach