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Dynamic Response of Heavy Duty Diesel Engine Structures
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English
Abstract
The paper describes an investigation to identify the sources of forces which cause the vibration of different parts of the engine structure in a turbocharged heavy duty diesel engine of 2 litres/cylinder capacity. The differences in vibration response at the main bearings and on the engine outer surfaces is shown. Results of overall dynamic stiffness measurements at the main bearings indicate that the oil film has a negligible effect on the behaviour of the major vibration response. A model is put forward for an absolute prediction of the engine outer surface vibration. The model can be seen as an alternative or complement to current F.E. techniques. A comparison between predicted and measured vibration on the crankcase is presented. Predicted vibration response spectra are used to show the relative contribution of liner and bearing forces to the overall crank-case and cylinder block vibration of the engine.
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Citation
Anderton, D. and Ghazy, M., "Dynamic Response of Heavy Duty Diesel Engine Structures," SAE Technical Paper 871669, 1987, https://doi.org/10.4271/871669.Also In
SAE 1987 Transactions: Reciprocating Engines--Spark Ignition and Diesel
Number: V96-4; Published: 1988-09-01
Number: V96-4; Published: 1988-09-01
References
- Influence of operating cycle on noise of diesel engines Anderton D. Baker J. SAE paper 730241
- Characteristics of exciting forces and structural response of turbocharged diesel engines Priede T. Baker J.M. Grover E.C. Ghazy R. SAE paper 850972
- On the extraction and filtering of signals acquired from rotating machines Braun S.G. Seth B.B. Journal of Sound and Vibration 65 1 37 51 1979
- Exciting forces and their relationship to turbocharged diesel engine vibration Ghazy M.R.A. Ph.D. Thesis University of Southampton England
- Investigation of reciprocating IC engine structure response and vibration transmission using an hydraulic technique Saleh N. Ph.D. Thesis University of Southampton England 1987