Engine Vibration and Noise Reduction Using a Crank-Block System Model 891129
A coupled engine-block and crankshaft model is developed and applied to predict the engine block vibration and radiated noise. Block surface vibration which is excited by combustion pulses and inertia loads is investigated as the source of radiated noise. The predicted response shows the dominant engine harmonics, resonant frequencies, global modes and local surfaces which participate to produce the radiated noise. A structural modification is evaluated which reduces the transmission of the loads through the bulkheads, and significant vibration and noise reduction is predicted.
Citation: Sung, S. and Nefske, D., "Engine Vibration and Noise Reduction Using a Crank-Block System Model," SAE Technical Paper 891129, 1989, https://doi.org/10.4271/891129. Download Citation
Author(s):
Shung H. Sung, Donald J. Nefske
Affiliated:
Engineering Mechanics Dept., General Motors Research Labs.
Pages: 6
Event:
SAE Noise and Vibration Conference and Exposition
ISSN:
0148-7191
e-ISSN:
2688-3627
Also in:
Proceedings of the 1989 Noise and Vibration Conference-P-222
Related Topics:
Noise
Vibration
Crankshafts
Combustion and combustion processes
Transmissions
Bulkheads
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