Internal damping in rotating shafts

被引：19
|
作者：
Vatta, F. [1 ]
Vigliani, A. [1 ]
机构：
[1] Politecn Torino, Dipartimento Meccan, I-10129 Turin, Italy
来源：
MECHANISM AND MACHINE THEORY | 2008年 / 43卷 / 11期
关键词：
internal damping; rotor dynamics; nonlinear forces;
D O I：
10.1016/j.mechmachtheory.2007.12.009
中图分类号：
TH [机械、仪表工业];
学科分类号：
0802 ;
摘要：
This paper analyses the influence of internal damping on the dynamic behaviour of rotating shafts. The problem is faced considering the presence of nonlinearities introduced in the restoring elastic forces by the alternate compression and extension of the shaft fibres; these forces show a component that can oppose or drive the shaft whirl motion. The analytical solutions obtained allow to describe the transient motion of the shaft and to evaluate the stability limit, whose value slightly differs from the classical one determined with linear approaches. (C) 2008 Elsevier Ltd. All rights reserved.
引用
收藏
页码：1376 / 1384
页数：9
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