Use of Complex Signals in Modelling of Journal Bearings

摘要

There are many ways how to model a rotor system with journal bearings, but this paper prefers an approach, which is based on the concept developed by Muszynska (1986). In contrast to the others, that prefer the lubricant flow prediction using a FE method, the Muszynska model can be employed to simulate the behaviour of a journal vibration active control system by manipulating the sleeve position by piezoactuators, which are a part of the closed loop composed of proximity probes and a controller. The paper is focused on the problem how to simulate behaviour of system and to estimate the true values of the simulation model parameters.