This content is not included in
your SAE MOBILUS subscription, or you are not logged in.
Possibilities to Reconstruct Indicator Diagrams by Analysis of the Angular Motion of the Crankshaft
Annotation ability available
Sector:
Language:
English
Abstract
The paper tries to establish the possible correlations between the fluctuations of the angular motion of the crankshaft -which may be easily measured-with the variations of the pressure time-histories in the engine's cylinders.
The model of the dynamic system of an engine shafting and the appropriate computing code are validated by comparison with measured angular motion of the front-end of the crankshaft. The algorithm of the code - based on the transfer matrix method - is then reversed in order to obtain the harmonic components of the exciting torques acting along the crankshaft from the harmonic components of the motion of the free-end of the crankshaft. Different ways of performing this task and the influence of nonuniform cylinder contributions are investigated and discussed.
Recommended Content
Authors
Topic
Citation
Taraza, D., "Possibilities to Reconstruct Indicator Diagrams by Analysis of the Angular Motion of the Crankshaft," SAE Technical Paper 932414, 1993, https://doi.org/10.4271/932414.Also In
References
- Nestorides E.J. A Handbook on Torsional Vibrations Cambridge at the University Press 1958
- Hafner K.E. Mass H. Springer Verlag Wien New-York 1985
- Chen K.S. Chang T. Crankshaft Torsional and Damping Simulation - An Update and Correlation with Test Results SAE Paper 861226
- Citron S.J. O'Higgins J.E. Chen L.Y. Cylinder by Cylinder Engine Pressure and Pressure Torque Waveform Determination Utilizing Speed Fluctuation SAE Paper 890486
- Johnston P.R. Shusto L.M. Analysis Of Diesel Engine Crankshaft Torsional Vibrations SAE Paper 870870
- Nagamatsu A. Nagoike M. Vibration Analysis of Movable Part of Internal Combustion Engine Paper No. 198-11 Bulletin of JSME 24 198 December 1981
- Kronberger M. 27-28 April 1989
- Hafner K. E. 10 1964
- Taraza D. Nedelcu D. Iacob F. Crankshaft Dynamics Computations based on Angular Movement Measurement Proceeding of ESFA'91 Bucharest 25-26 October 1991
- Taraza D. 1985
- Pestel E. Leekie F.A. Matrix Method in Elastomechanics Me Graw and Hill New-York Toronto 1963
- Freastone J.W. Jenkins E.S. The Diagnosis of Cylinder Power Faults in Diesel Engines by Flywheel Speed Measurement Paper C33/85 Vehicle Condition Monitoring and Fault Diagnosis London 1985 I. Mech. Eng. 1985
- Taraza D. Nedelcu D. Iacob F. A New Method of Measuring Torsional Vibrations Scientific Bulletin of the Polytechnic Institute of Bucharest, Mechanical Engineering Series 52 2 1990
- Stepanov N. F. Erlikina M. E. Filipov G. G. 1985