A brief review on modeling approaches of friction dampers used in turbomachinery

Abstract

The present paper deals with a brief review on different modeling techniques used to model friction dampers in turbomachinery. It is not the intention of the author to provide a detailed survey on all the approaches. However, the main concentration is on finite element modeling and bondgraph modeling. The main purpose of this paper is to provide a detailed survey on various modeling approaches adopted in turbomachinery, especially kinematics modeling, finite element modeling, parametric modeling, harmonic balance analysis and bondgraph modeling. The usefulness of bondgraph modeling technique is underlined in this paper presenting several considerations in the model. The bondgraph is one of the most convenient ways to represent a system form the physical aspects in foreground. It has advantages of putting together multi-energy domain of the system in a single representation in a unified manner. A case study of bondgraph modeling of turbine blade has been presented along with friction damper. © 2012 Springer India Pvt. Ltd.