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Investigation on Coupled Torsional-axial Vibration of Crankshaft Based on Rayleigh Differential Method
Technical Paper
2006-01-0880
ISSN: 0148-7191, e-ISSN: 2688-3627
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English
Abstract
This paper presents the principle and method of calculation for the coupled torsional-axial vibration of crankshaft for a high speed diesel engine based on Rayleigh differential method. At first, the internal combustion engine crankshaft was simplified to a continuous stepped shaft model and the kinetic formulas of shafts and masses were constructed. By means of the Lagrange formulation, the motion equation of torsional vibration and axial vibration were deduced. According to coupled principle and excited force of shafting system, a model of coupled torsional-axial forced vibration can be constructed. Applying a vector matrix, a single order or a whole system vibration can be analyzed. With a newly designed testing device, the axial and torsional vibrations of the crankshaft at the free-end of a 4-cylinder diesel engine were measured. Compared with the practical measurement results, the calculated results are to be in agreement in main order.
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Shu, G., Liang, X., and Wang, Y., "Investigation on Coupled Torsional-axial Vibration of Crankshaft Based on Rayleigh Differential Method," SAE Technical Paper 2006-01-0880, 2006, https://doi.org/10.4271/2006-01-0880.Also In
References
- Dorey, S.F. Strength of Marine Engine Shafting Trans. NEC. Instn. 1939 55
- Poole The axial vibration of diesel engine crankshaft I MechE 1941 146 4
- Van Dort D Visser N J. Crankshaft coupled fee torsional-axial vibration of ship's propulsion system I.S.P. 1963 10 107
- Bo-zhong Li Tian-xiang Song Xi-geng Song On Coupled Vibrations of Reciprocating Engine Shaft Systems (Part 1) Axial Vibration Caused by Torsional Vibration Transactions of CSICE 1989 7 1 1 6
- Bo-zhong Li Tian-xiang Song Xi-geng Song On Coupled Vibrations of Reciprocating Engine Shaft Systems (Part 2) Progressive Torsional-Axial Continued Vibrations Transactions of CSICE 1990 8 4 317 322
- Xi-geng Song Tian-xiang Song Dong-xin Xue On Coupled Vibrations of Reciprocating Engine Shaft Systems (Part 3) Calculation Method of Coupled at Same and Double Frequencies Transactions of CSICE 1994 12 2 115 120
- Hong-tian Zhang Zhi-hua Zhang Calculation of Coupled Axial and Torsional Shafting Vibration of Motorship Using System Matrix Model Ship Engineering 1995 4 36 42
- Ge-qun Shu Xing-cai Lv Coupled Torsional-Axial Vibration of the CrankshafT for a High Speed Diesel Engine ACTA ARMAMENTARII 2002 23 1 5
- Okamura, H. Shinno, A. Yamanaka, T. et al. Simple modeling and analysis for crankshaft three-dimension vibrations. Part 1: Background and application to free vibrations Trans ASME, Journal of Vibration and Acoustics 1995 117 80 86
- Morita, T. Okamura, H. Simple modeling and analysis for crankshaft three-dimension vibrations. Part 2: Application to an operating engine crankshaft Trans ASME, Journal of vibration and Acoustics 1995 117 70 79