In this paper, vibration behavior of engine on the nonlinear hydraulic engine mount, including inertia track and decoupler, is studied. In this regard, after introducing the nonlinear factors of this mount (i.e., inertia and decoupler resistances in turbulent region), the vibration governing equations of engine on one hydraulic engine mount are solved and the effect of nonlinearity is investigated. In order to have a comparison between the rubber and the hydraulic engine mounts, a six-degree-of-freedom four-cylinder V-shaped engine under shaking and balancing mass forces and torques is considered. By solving the time domain nonlinear equations of motion of the engine on three inclined mounts, translational and rotational motions of an engine body are obtained for different engine speeds. Transmitted base forces are also determined for both types of engine mount. Comparison of rubber and hydraulic mounts indicates the efficiency of a hydraulic one in the low-frequency region.
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August 2007
Technical Papers
Simulation of Engine Vibration on Nonlinear Hydraulic Engine Mounts
A. R. Ohadi,
A. R. Ohadi
Mechanical Engineering Department,
e-mail: a̱ṟohadi@aut.ac.ir
Amirkabir University of Technology
, Hafez Avenue, Tehran 15914, Iran
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G. Maghsoodi
G. Maghsoodi
Automotive Engineering Department,
Iran University of Science and Technology
, Tehran 16844, Iran
Search for other works by this author on:
A. R. Ohadi
Mechanical Engineering Department,
Amirkabir University of Technology
, Hafez Avenue, Tehran 15914, Irane-mail: a̱ṟohadi@aut.ac.ir
G. Maghsoodi
Automotive Engineering Department,
Iran University of Science and Technology
, Tehran 16844, IranJ. Vib. Acoust. Aug 2007, 129(4): 417-424 (8 pages)
Published Online: April 9, 2007
Article history
Received:
August 19, 2005
Revised:
April 9, 2007
Citation
Ohadi, A. R., and Maghsoodi, G. (April 9, 2007). "Simulation of Engine Vibration on Nonlinear Hydraulic Engine Mounts." ASME. J. Vib. Acoust. August 2007; 129(4): 417–424. https://doi.org/10.1115/1.2748459
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