Author(s)

A. Shintani, K. Fujita, K. Yoshioka, K. Okuno, H. Tanaka & Y. Asaida

Abstract

Dynamic behavior of a fluid plain journal bearing with incompressible fluid considering nonlinear fluid forces A. ~hintani', K. ~ujita', K. ~oshioka', K. Okunol, H. ~anaka' & Y. ~ s a i d a ~ I Mechanical Systems Engineering, Graduate School of Engineering, Osaka Prefecture University, Japan 2 Matsushita Electric Industrial, Japan Abstract Recently, in many areas such as computers and information equipments etc., the fluid journal bearings are required to rotate at higher speed. To satisfy this requirement, the strictly stability analysis of the journal is indispensable. In this paper, we investigate the stability analysis of the dynamic behavior of the fluid plain journal bearing with incompressible fluid considering the nonlinear terms of fluid forces. The stability analysis is examined by the numerical simulations on each model of rigid rotor and flexible rotor. The stable regions are compared by nonlinear analysis with the regions by classical linear analysis. Performing nonlinear simulat

Keywords