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Measurement and mathematical modelling of a coupled hydraulic-mechanical system

A coupled hydraulic-mechanical system has been set up, measured and described by a mathematical model in the frequency domain. This system can be excited hydraulically, by adjusting the flow rate, or mechanically by applying a force. The pressures in the hydraulic subsystem and the accelerations of the mechanical subsystem are measured. From this data, frequency responses between the excitations and the states can be calculated, which are used to validate the mathematical model. In order to identify unknown parameters of the hydraulic subsystem, a variation of certain parameter sets is carried out. They serve as degrees of freedom for a optimization task in model adaptation. The focus here is on quality, effort and suitability of this approach.