QQ客服 官方微博 反馈留言

	The dynamic behavior of a rotor system with a slant crack on the shaft
	Lin, Yanli ; Chu, Fulei
	2010-10-12 ; 2010-10-12
关键词	Dynamic Rotor system Slant crack Transverse crack Stiffness TORSIONAL VIBRATION VARIATIONAL FORMULATION TRANSVERSE CRACK AXIAL EXCITATION JEFFCOTT ROTOR ROTATING SHAFT IDENTIFICATION MODEL ROD Engineering, Mechanical
中文摘要	For a Jeffcott rotor system with a 45 degrees slant crack on the shaft, the motion equations are established with four directions, i.e. two transversal directions, one torsional direction and one longitudinal direction. It can be seen from the deducing process of the stiffness with the strain energy release approach that there are coupling stiffnesses of bending-tors ion, bending-tension and torsion-tension for the slant-cracked shaft and only bending-tension for the transverse-cracked one. The paper shows that besides the coupling stiffnesses, there is bending-torsion coupling caused by the eccentricity. All these couplings affect the responses of the slant-cracked shaft and the transverse-cracked one. Comparing responses of a cracked shaft with an open crack model and those with a breathing crack model finds that there are the same prominent characteristic frequencies for these two kinds of shafts, even though the cracked shaft with a breathing crack model behaves much more non-linear than that with an open crack model. Therefore, almost all studies in this paper adopt the open crack model since it needs taking much longer time to compute responses of a breathing cracked shaft than that of an open cracked shaft. Analyses of steady responses indicate that the combined frequencies of the rotating speed and the torsional excitation in the transversal response and the frequency of the torsional excitation in the longitudinal response can be used to detect the slant crack on the shaft of the rotor system. (C) 2009 Elsevier Ltd. All rights reserved.
语种	英语 ; 英语
出版者	ACADEMIC PRESS LTD- ELSEVIER SCIENCE LTD ; LONDON ; 24-28 OVAL RD, LONDON NW1 7DX, ENGLAND
内容类型	期刊论文
源URL	[http://hdl.handle.net/123456789/80375]
专题	清华大学
推荐引用方式 GB/T 7714	Lin, Yanli,Chu, Fulei. The dynamic behavior of a rotor system with a slant crack on the shaft[J],2010, 2010.
APA	Lin, Yanli,&Chu, Fulei.(2010).The dynamic behavior of a rotor system with a slant crack on the shaft..
MLA	Lin, Yanli,et al."The dynamic behavior of a rotor system with a slant crack on the shaft".(2010).

个性服务

查看访问统计

相关权益政策

暂无数据

收藏/分享

除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。