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Characteristics of Exciting Forces and Structural Response of Turbocharged Diesel Engines
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English
Abstract
The paper quantifies the forces applied to the main bearings of three six-cylinder turbocharged diesel engines and reviews their exciting properties in both time and frequency domains. The engine structure response at the bearing supports and the outer engine surfaces are correlated. It is shown that the engine structure response is a transient phenomenon and is a maximum in the vicinity of the applied force. By representing the engine response in terms of displacement it is possible to recognise the applied force time history and thus the identification of the specific parts of the engine structure primarily excited by moments and by direct force. The displacement technique for quantifying engine response provides detailed information of the distortion of the running engine enabling the prediction of mechanical inputs which can control the turbocharged engine noise. This is essential for quantifying input data for theoretical models and establishing structure changes to control engine radiated noise.
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Citation
Priede, T., Baker, J., Grover, E., and Ghazy, R., "Characteristics of Exciting Forces and Structural Response of Turbocharged Diesel Engines," SAE Technical Paper 850972, 1985, https://doi.org/10.4271/850972.Also In
References
- Anderton D. Grover E.C. Lalor N. Priede T. “Origins of Reciprocating Engine Noise - Its Characteristics, Prediction, and Control”
- Priede T. “The effect of operating parameters on sources of vehicle noise” J.Sound Vib 1975 43 2 239 252
- Priede T. “The Problems of Noise of Engines in Different Vehicle Groups” S.A.E. Paper No. 750795