Research on parametric optimum design for a multi medium coupling shock absorber based on dual demand for resisting violent impact and attenuating vibration

The aim of this paper is to provide a method to perform parameters matching selection for a multi medium coupling shock absorber. A model considers the coupling of quadratic damping, viscosity damping, coulomb damping and spring is investigated. Two style excitations on the system as inputs are discussed respectively. The approximate theoretical formulae include output response of the system, break-loose frequency, absolute acceleration transmissibility are deduced. The analytical results are compared with numerical solution. The impact characteristic of the model is also analysed. An optimum model for parameters is built. An example is illustrated to confirm the validity of the modelling and the solution.