Dynamics studies of a flexible hub-beam system with significant damping effect

被引：39

作者：

Cai, Guo-Ping ^{[1
]}

Lim, C. W. ^{[2
]}

机构：

[1] Shanghai Jiao Tong Univ, Dept Engn Mech, Shanghai 200240, Peoples R China

[2] City Univ Hong Kong, Dept Bldg & Construct, Kowloon, Hong Kong, Peoples R China

来源：

JOURNAL OF SOUND AND VIBRATION | 2008年 / 318卷 / 1-2期

关键词：

D O I：

10.1016/j.jsv.2008.06.009

中图分类号：

O42 [声学];

学科分类号：

070206 ; 082403 ;

摘要：

In this paper, dynamics of a flexible hub-beam system is studied using a first-order approximation coupling (FOAC) model and the assumed mode discretization method. Three kinds of damping are considered: structural damping of beam material, air damping caused by large motion of the system, and damping located at hub bearing. Validity of the FOAC model is verified by numerical simulations under two cases: (i) known large motion of system and (ii) unknown large motion of system. Damping may significantly affect system dynamics and should not be neglected for high-speed large motion of system or highly flexible beam. (C) 2008 Elsevier Ltd. All rights reserved.

引用

页码：1 / 17

页数：17

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