Prediction of Excitation Forces and Powerplant Vibration in a Horizontally Opposed Engine 980283
A useful analysis method of excitation forces and powerplant vibration caused by engine operations has been developed, intended for a powerplant which consists of a horizontally opposed 4-cylinder engine and a longitudinally mounted transmission. The developed method uses a commercial mechanical dynamics solver to calculate the excitation forces which involve the effects of crankshaft vibration and main journal clearances. Also a vibration analysis model of the powerplant is built using the results of experimental modal analysis, for the prediction of powerplant vibration levels. The calculated result was verified by the measured vibration data, and it was confirmed that this analysis method can predict the low order components of powerplant vibration with reasonable accuracy.
Citation: Takeuchi, Y., Tsukahara, H., and Sato, M., "Prediction of Excitation Forces and Powerplant Vibration in a Horizontally Opposed Engine," SAE Technical Paper 980283, 1998, https://doi.org/10.4271/980283. Download Citation
Author(s):
Yuichi Takeuchi, Hiroshi Tsukahara, Mitsukiyo Sato
Affiliated:
Subaru Research Center Co., Ltd.
Pages: 10
Event:
International Congress & Exposition
ISSN:
0148-7191
e-ISSN:
2688-3627
Also in:
Noise and Vibration Research-SP-1363
Related Topics:
Vibration
Crankshafts
Transmissions
SAE MOBILUS
Subscribers can view annotate, and download all of SAE's content.
Learn More »