Modelling of Control Valves

Abstract

The contents of this chapter focus on modelling the control valves in flow-mode MR dampers. The authors handle several constitutive models of non-Newtonian fluid models, and obtain equations governing their behaviour in planar flow. Special attention in given to the development of a non-dimensional modelling approach including all key variables. The scheme performance is then demonstrated based on several configurations of control valves of MR dampers. Electromagnetic coupling is provided through a magneto-static axisymmetric model of the control valve assembly or a (transient) lumped parameter model of the electromagnetic circuit of the control valve. A simple design algorithm for optimising the performance of the dampers is demonstrated in the chapter, too.