Sub-synchronous vibrations of a rotor supported on poorly lubricated journal bearings

Result code in IS VaVaI

RIV/49777513:23520/19:43955495 - isvavai.cz

Result on the web

http://www.engmech.cz/improc/2019/079_Smolik_080.pdf

DOI - Digital Object Identifier

10.21495/71-0-339

Result language

angličtina

Original language name

Sub-synchronous vibrations of a rotor supported on poorly lubricated journal bearings

Original language description

This paper aims to the modelling and investigation of sub-synchronous vibrations of a rotor supported on poorly lubricated journal bearings. Bores for an oil supply are located in the lower halves of bearing shells. It is shown that the poor lubrication of the described bearings may lead to an occurrence of stable vibrations at the frequency ca. 0.9 to the rotor speed. Simulations are performed using a multi-body approach for modelling rotating systems. Forces acting in journal bearings are evaluated employing a massconserving finite element solution of the Reynolds equation.

Czech name

—

Czech description

—

Type

D - Article in proceedings

CEP classification

—

OECD FORD branch

20302 - Applied mechanics

Project

GA17-15915S: Nonlinear dynamics of rotating systems considering fluid film instabilities with the emphasis on local effects

Continuities

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year

2019

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Article name in the collection

Engineering Mechanics 2019

ISBN

978-80-87012-71-0

ISSN

1805-8248

e-ISSN

1805-8256

Number of pages

4

Pages from-to

339-342

Publisher name

Ústav termomechaniky AV ČR, v. v. i.

Place of publication

Praha

Event location

Svratka

Event date

May 13, 2019

Type of event by nationality

EUR - Evropská akce

UT code for WoS article

000613255300079