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Proceedings Paper

Dynamic analysis of engine mounts at different orientations
Author(s): Ooi Lu Ean; Zaidi Mohd Ripin
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Paper Abstract

Rubber engine mounts are commonly used to provide v ibration attenuation. The loss factor and dynamic stiffness of engine mount provide fundamental information of the energy dissipation. This paper presented the effect of orientation angle on the damping characteristic of the engine mount. Firstly, the damping measurement is performed on the engine mount in the axial position. Dynamic driving point stiffness is measured. Secondly, the analysis is extended to measure and analyze the frequency dependent stiffness and loss factor at different orientation for the engine mount. The results showed that the stiffness of the engine mount decreases when the engine mount is shifted from vertical to horizontal position. The same observation was also made for the natural frequency of the system. The frequency dependency of the stiffness and loss factor are also shown in the analysis. The measured frequency dependent stiffness and loss factors are then used to reproduce the frequency response function.

Paper Details

Date Published: 14 April 2010
PDF: 10 pages
Proc. SPIE 7522, Fourth International Conference on Experimental Mechanics, 752238 (14 April 2010); doi: 10.1117/12.851828
Show Author Affiliations
Ooi Lu Ean, Univ. Sains Malaysia (Malaysia)
Zaidi Mohd Ripin, Univ. Sains Malaysia (Malaysia)

Published in SPIE Proceedings Vol. 7522:
Fourth International Conference on Experimental Mechanics
Chenggen Quan; Kemao Qian; Anand Krishna Asundi; Fook Siong Chau, Editor(s)

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