Dynamic analysis of engine mounts at different orientations

Ooi Lu Ean; Zaidi Mohd Ripin

doi:10.1117/12.851828

14 April 2010 Dynamic analysis of engine mounts at different orientations

Ooi Lu Ean, Zaidi Mohd Ripin

Proceedings Volume 7522, Fourth International Conference on Experimental Mechanics; 752238 (2010) https://doi.org/10.1117/12.851828
Event: Fourth International Conference on Experimental Mechanics, 2009, Singapore, Singapore

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.

Citation Download Citation

Ooi Lu Ean and Zaidi Mohd Ripin "Dynamic analysis of engine mounts at different orientations", Proc. SPIE 7522, Fourth International Conference on Experimental Mechanics, 752238 (14 April 2010); https://doi.org/10.1117/12.851828

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