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Engine Noise: Practicalities and Prediction, Part 2 - Finite Element Analysis
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English
Abstract
Finite element methods have been developed to assist the design of engine structures for low noise and vibration levels.
Two basic forms of engine structure have been modelled. Predicted free and forced vibration levels have shown good agreement with experimental results. Guidelines have been defined for finite element model generation and for forced loadcase definition.
Radiated noise has been predicted, overall agreement with experimental measurements is good. Work is continuing to develop noise prediction techniques.
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Citation
Tyrrell, R. and Croker, D., "Engine Noise: Practicalities and Prediction, Part 2 - Finite Element Analysis," SAE Technical Paper 870978, 1987, https://doi.org/10.4271/870978.Also In
References
- “Engine Noisé: Practicalities and Prediction. Part 1: Hardware Evaluation.” Croker M.D. SAE 870977 1987 SAE Noise and Vibration Conference
- “A Correlation Coefficient for Modal Vector Analysis” Allemang R.J. Proc. 1st Int. Modal Analysis Conf. Florida 1982
- “Optimisation of Modal Matrices by means of Experimentally Obtained Data” Heylen W. Proc. 1st Int. Modal Analysis Conf. Florida 1982