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Flexural Vibration Analysis of Constant Velocity Halfshafts
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Abstract
This paper presents a study on the resonance of front wheel drive (FWD) automobile half-shafts. This problem can occur in FWD vehicles when the excitation frequency generated by the engine equals one of the bending natural frequencies of the half-shaft [7],[8]. Experimental modal analysis is today the prefered method in the study of this problem[6], but in this paper the bending natural frequencies of the half-shaft are obtained using a numerical and a parametric method. Comparison of numerical results using two half-shaft models and experimental data shows good agreement. The physical variables that influence the phenomenon are then investigated, and a dimensional analysis is conducted to obtain parametric design graphs that help to calculate resonance frequencies of the half-shaft. Results of the graphical method are also compared with published experimental and numerical results, showing very good agreement At the end a procedure for verification and design of shafts and half-shafts is defined, helping to shorten the process of design and quotation of the halfshaft project.
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Citation
Coutinho, L. and Tamagna, A., "Flexural Vibration Analysis of Constant Velocity Halfshafts," SAE Technical Paper 960725, 1996, https://doi.org/10.4271/960725.Also In
Transmission and Driveline Systems Symposium: Efficiency, Components, and Materials
Number: SP-1154; Published: 1996-02-01
Number: SP-1154; Published: 1996-02-01
References
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- Coutinho, L. F. Kniest, R. Theoretical and Experimental Approach to Evaluate NVH Characteristics of Automobile Half-shafts and Interconnecting Shafts SAE paper # 921468 SAE Brazil 92
- Kniest, R. R. Master Eng. Dissertation 1994 Brazil