1991-11-01

Simulation of Engine Vibration on Industrial Machinery 911272

Several techniques have thus far been scrutinized for the estimation of machine vibration originated with the engine. Nevertheless, there has existed no other way available than to conduct experiments to know the vibration level quantitatively, since such techniques available today are not accurate enough.
Authors have thus pursued research and succeeded in working out a simulation method that is capable of estimating, at design stage, the vibration attributable to engine exciting force on machine structure, especially on the low frequency vibration, that in consequence caused the oft-occurrence of problems such as noise through the vibroaction of panels, as the engine is mounted on the vehicle frame via mounting rubbers.
Authors then applied such method to selective engine mounts and validated a good agreement with the results obtained from the simulation and the life-test, even with the use of mount rubbers of varying characteristics.

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