Estimation of mass,damping and stiffness parameters in mechanical vibrating structures

Abstract

In this paper, the authors describe the development of a technique for estimating numerical values for the mass, damping and stiffness parameters in linearised models of mechanical vibrating structures. It is shown how an existing non-linear filtering algorithm has been transformed to the frequency domain and subsequently reformulated as a linear filter. Experimental case studies involving a portal-frame rig and a squeeze-film damper illustrate the application of the technique.

Keywords

System identification mechanical vibrations sequential filtering parameter estimation least-squares methods.

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