Dynamics of large power rotating machine with cracked shaft

被引：0

作者：

Banaszek, S ^{[1
]}

机构：

[1] PASci, Szewalski Inst Fluid Flow Machinery, PL-80952 Gdansk, Poland

来源：

DAMAGE ASSESSMENT OF STRUCTURES VI | 2005年 / 293-294卷

关键词：

crack; rotating machinery; slide bearings; dynamics; diagnostics;

D O I：

10.4028/www.scientific.net/KEM.293-294.337

中图分类号：

TH [机械、仪表工业];

学科分类号：

0802 ;

摘要：

The paper presents the course and results of crack propagation simulation research. The object taken into account is a large power turbo-set rotor. The computer code system NLDW is presented. It uses a non-linear model of journal bearings, and well known crack model. Crack depth is marked by a crack coefficient. It is shown the crack generates a coupled forms of lateral, axial and torsional vibrations in multi-support rotor. Their intensity depends on the axial and circumferential crack location on the shaft. The attempt at pointing a proper diagnostic indicator for crack detection in large rotating machine is made according to obtained results.

引用

页码：337 / 346

页数：10

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