Experimental and finite element analysis to identify the source of vibration of a coach

Han, Tian, Huang, Chenxi, & Tan, Andy C.C. (2014) Experimental and finite element analysis to identify the source of vibration of a coach. Engineering Failure Analysis, 44, pp. 100-109.

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Abstract

This paper presents an investigation on the cause of severe vibration problem of a coach with four-cylinder engine running at an idle state using vibration and impact hammer modal experiments to obtain the main vibration frequency components and the natural characteristics of the coach. The vibration results indicate that the main vibration component comes from the vibration transmitted from the engine to the chassis frame, which is closely related with the engine idle speed. Based on structural simulation analysis of the coach’s chassis frame and comparison with modal testing, the coach severe vibration problem was due to coupling resonance between the engine idle frequency and the fourth natural frequency of the chassis frame. The solution to eliminate the vibration problem is provided by changing the local structure stiffness of the chassis frame. The contribution of this paper lies in providing a solution to solve similar problems.

Impact and interest:

1 citations in Scopus
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2 citations in Web of Science®

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ID Code: 72839
Item Type: Journal Article
Refereed: Yes
Keywords: Vibration testing, Modal analysis, Finite element analysis, Coupling resonance
DOI: 10.1016/j.engfailanal.2014.04.024
ISSN: 1350-6307
Divisions: Current > Schools > School of Chemistry, Physics & Mechanical Engineering
Current > Institutes > Institute of Health and Biomedical Innovation
Current > QUT Faculties and Divisions > Science & Engineering Faculty
Copyright Owner: � 2014 Elsevier Ltd. All rights reserved.
Deposited On: 16 Jun 2014 05:26
Last Modified: 16 Jun 2014 23:39

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