Case Study: Modeling Generator Chassis Responses with ODS Data

Abstract

Creating a correlated model of an operating generator set is a complicated and expensive endeavor. This case study describes the process of modeling the generator chassis with finite elements and applying generator set measured acceleration values as inputs for a harmonic forced vibration analysis. The underlying idea of this approach is to capture the complex excitation function via experimental data on a subsystem that is relatively linear. Various model responses of the chassis are compared to the measured operating responses.