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Frontiers of Mechanical Engineering

ISSN 2095-0233

ISSN 2095-0241(Online)

CN 11-5984/TH

邮发代号 80-975

2019 Impact Factor: 2.448

Frontiers of Mechanical Engineering  2013, Vol. 8 Issue (3): 244-251   https://doi.org/10.1007/s11465-013-0264-8
  RESEARCH ARTICLE 本期目录
Dynamic analysis of a rig shafting vibration based on finite element
Dynamic analysis of a rig shafting vibration based on finite element
Van Thanh NGO, Danmei XIE(), Yangheng XIONG, Hengliang ZHANG, Yi YANG
School of Power and Mechanical Engineering Wuhan University, Wuhan 430072, China
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Abstract

In recently, finite elements method (FEM) has been used most popular for analysis of stress, vibration, heat flow and many other phenomena. Taking a rig shafting as an example, this paper studies the lateral vibration of the rig shafting with multi-degree-of-freedom by using FEM. The FEM model is created and the eigenvalues and eigenvectors are calculated and analyzed to find natural frequencies, critical speeds, mode shapes and unbalance responses. Then critical and mode shapes are determined. Finally, responses of unbalance force are analyzed in case of undamped and damped system, and peaks of response are compared.

Key wordsFinite element method (FEM)    lateral vibration    rig shafting    rotor-bearing system    dynamic characteristics
收稿日期: 2012-10-31      出版日期: 2013-09-05
Corresponding Author(s): XIE Danmei,Email:dmxie@whu.edu.cn   
 引用本文:   
. Dynamic analysis of a rig shafting vibration based on finite element[J]. Frontiers of Mechanical Engineering, 2013, 8(3): 244-251.
Van Thanh NGO, Danmei XIE, Yangheng XIONG, Hengliang ZHANG, Yi YANG. Dynamic analysis of a rig shafting vibration based on finite element. Front Mech Eng, 2013, 8(3): 244-251.
 链接本文:  
https://academic.hep.com.cn/fme/CN/10.1007/s11465-013-0264-8
https://academic.hep.com.cn/fme/CN/Y2013/V8/I3/244
Fig.1  
Fig.2  
Fig.3  
Fig.4  
Speed/ (rev?min-1)Root s/(rad?s-1)ωn/Hzωd/Hzξ
0-23.21±126.53j-23.21±126.53j-37.97±163.37j-37.97±163.37j-25..40±220.39j-25.40±220.39j-26.75±449.60j-26.75±449.60j20.473320.473326.694626.694635.307635.307671.682971.682920.137220.137226.001626.001635.075535.075571.556471.55640.180.180.230.230.110.110.060.06
3500- 22.94±125.26j-23.48±127.77j-37.90±162.96j-38.03±163.81j-25.32±217.81j-25.47±223j-25.93±442.1j-27.56±457.24j20.266720.675826.628426.765134.899335.721670.475872.903919.935020.335325.936226.071834.665835.490970.354872.77180.1800.1840.2260.2260.1150.1130.0580.06
Tab.1  
ΩIΩIIΩIIIΩIV
1212156221194384
Tab.2  
Fig.5  
Fig.6  
Fig.7  
Fig.8  
Fig.9  
ResponseNode
Node 13Node 31Node 46
UndampedDampedUndampedDampedUndampedDamped
First peak12558.36833326152
Second peak636010829002191425480
Third peak840150606310591500260
Tab.3  
Fig.10  
Fig.11  
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