Nonlinear behavior analysis of a rotor on two-lobe wave journal bearings

被引：11

作者：

Adiletta, Giovanni ^{[1
]}

Mancusi, Erasmo ^{[2
]}

Strano, Salvatore ^{[1
]}

机构：

[1] Univ Naples Federico II, Dipartimento Ingn Meccan Energet, I-80125 Naples, Italy

[2] Univ Sannio, Fac Ingn, I-82100 Benevento, Italy

来源：

TRIBOLOGY INTERNATIONAL | 2011年 / 44卷 / 01期

关键词：

Wave journal bearings; Nonlinear dynamics; Continuation; Bifurcation; FLUID-FILM BEARINGS; CLEARANCE CONFIGURATION; STABILITY; METHODOLOGY; BIFURCATION; IMPROVEMENT;

D O I：

10.1016/j.triboint.2010.08.009

中图分类号：

TH [机械、仪表工业];

学科分类号：

0802 ;

摘要：

The dynamics of an unbalanced rigid rotor on two-lobe journal bearings with wave profile symmetrically placed at its ends is studied in numerical way The radial dissymmetry of the shape given to the bearing bore makes the angular orientation of the same bearing one of the main parameters in the study of the system dynamics Further parameters adopted in the investigations are the amplitude of the wave component which characterizes the profile of the bearing bore the static unbalance and the speed of the rotor Brute-force integration of system equations has been carried out in order to obtain qualitative portraits of the system dynamics in terms of bifurcation diagrams and trajectories of the journal centre The study also illustrates the way numerical continuation method can highlight the dependence of the stable synchronous response on the adopted parameters and allow a tracking of the same motion in a simulated run-up of the rotor (C) 2010 Elsevier Ltd All rights reserved

引用

页码：42 / 54

页数：13

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