Author(s)

A. Gobetti, R. Montagna and P. Venini

Abstract

An active control strategy is proposed herein to reduce pressure oscillations and resonance phenomena in uncertain piping systems that are modeled within the theory of the transfer matrix method developed by Chaudhry [3]. Uncertainties in the location of the system poles as well as in the actuator model may be taken into account. The controller is designed with robust properties of stability and performance thanks to a n synthesis approach. Numerical simulations are worked out to show the potential of the method. 1 Introduction and motivation Sudden pressure variations within closed conduits that modify normal steady state regime are often referred to as hydraulic transients. They may arise in normal operating conditions and are due to opening or closing valves, starting or

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