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Calculation method of radial displacement in the engaging process of wet friction clutch

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Abstract

The radial vibration of the wet friction clutch has a certain influence on the engagement characteristics during the engagement process, and this influence cannot be ignored. This paper takes a variable speed configuration as the research object, establishing a six-degree-of-freedom equivalent bending-torsional vibration model of the variable speed transmission system, and studies the calculation method of the meridional displacement during the engagement process of the clutch. The Runge-Kutta method is used in this paper to solve the dynamic model and analyzes the relationship between the joint state and the radial vibration amplitude. The verified experiment is then conducted. Simulation and test results show the following: the clutch eccentric distance and the radial vibration amplitude, as well as the mass of the driven disc of the clutch and the radial vibration amplitude, all increase. The supporting rigidity of the clutch becomes large, the amplitude of radial vibration becomes small.

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References

  1. Y. Wu, L. Dong and W. Xie, Endurance performance and rotational speed change of variable speed rotor helicopter, Journal of Nanjing University of Aeronautics and Astronautics, 50(2) (2018) 193–199.

    Google Scholar 

  2. H. Amri et al., Possibilities and difficulties for rotorcraft using variable transmission drive trains, CEAS Aeronautical Journal, 7(2) (2016) 333–344.

    Article  MathSciNet  Google Scholar 

  3. G. Misté and E. Benini, Turboshaft engine performance comparison between CVT and fixed ratio transmission for a variable speed rotor, European Rotorcraft Forum (2013).

  4. Z. Li, Y. Li, H. Wang, R. Zhu and G. Jin, Sketch of the configuration scheme of two-stage variable speed gear transmission in unmanned helicopter main gearbox, Journal of Mechanical Transmission, 42(1) (2018) 167–170.

    Article  Google Scholar 

  5. H. Bao et al., Analysis of dynamic engaged characteristics of wet clutch in variable speed transmission of a helicopter, Processes, 8(11) (2020) 1474.

    Article  Google Scholar 

  6. H. Bao et al., Analysis of dynamic characteristics of a variable speed helicopter transmission system, Journal of Central South University, 50(10) (2019) 2403–2416.

    Google Scholar 

  7. H. DeSmidt, K. W. Wang, E. C. Smith and D. G. Lewicki, Variable-Speed Simulation of a Dual-Clutch Gearbox Tiltrotor Driveline, NASA/TM-2012-217212, National Aeronautics and Space Administration (2012).

  8. H. A. DeSmidt et al., Comprehensive Modeling and Analysis of Rotorcraft Variable Speed Propulsion System with Coupled Engine/Transmission/Rotor Dynamics, NASA/CR-2013-216502, National Aeronautics and Space Administration (2013).

  9. M. A. Stevens, R. F. Handschuh and D. G. Lewicki, Variable/Multispeed Rotorcraft Drive System Concepts, NASA/TM-2009-215456, National Aeronautics and Space Administration (2009).

  10. A. Crowther, N. Zhang, D. K. Liu and J. K. Jeyakumaran, Analysis and simulation of clutch engagement judder and stickslip in automotive powertrain systems, Proceedings of the Institution of Mechanical Engineers, Part D: Journal of Automobile Engineering, 218(12) (2004) 1427–1446.

    Google Scholar 

  11. D. Wang et al., Study on the influence factors upon the propensity to stick-slip phenomenon during vehicle start-up process, IEEE Access, 8 (2020) 12343–12353.

    Article  Google Scholar 

  12. P. Zengxiong, S. Qingpeng and H. Jibin, Wobble instability model for frictional plate in high speed open wet clutch, China Sciencepaper, 13(4) (2018) 399–407.

    Google Scholar 

  13. X. Wang et al., Axial vibration characteristics of friction disks of clutch on sliding, Journal of Vibration and Shock, 36(4) (2017) 81–87.

    Google Scholar 

  14. M. Li, K. Michael and Y. Ruzhou, Dynamics analysis of torsional vibration induced by clutch and gear set in automatic transmission, International Journal of Automotive Technology, 19(3) (2018) 473–488.

    Article  Google Scholar 

  15. H. Hu, Study on the characteristic of automatic wet clutch engagement process, Doctor’s Dissertation, Zhejiang University, Hangzhou, China (2008).

    Google Scholar 

  16. L. Yang, B. Ma and H. LI, Influence factors of friction-induced oscillation during wet clutch engagement, Transactions of Beijing Institute of Technology, 36(7) (2016) 673–678.

    Google Scholar 

  17. L. Hou, M. Liao and W. Wang, Experiment of rotor dynamics under fan blade off, Journal of Aerospace Power, 34(5) (2019) 1010–1019.

    Google Scholar 

  18. S. J. Idehara, F. L. Flach and D. Lemes, Modeling of nonlinear torsional vibration of the automotive powertrain, Journal of Vibration and Control, 24(9) (2018) 1774–1786.

    Article  Google Scholar 

  19. A. Crowther et al., Analysis and simulation of clutch engagement judder and stick-slip in automotive powertrain systems, Proceedings of the Institution of Mechanical Engineers, Part D: Journal of Automobile Engineering, 218(12) (2004) 1427–1446.

    Google Scholar 

  20. D. G. Lewicki et al., Dynamics of a dual-clutch gearbox system: analysis and experimental validation, Journal of the American Helicopter Society, 58(1) (2013) 17–28.

    Article  Google Scholar 

  21. H. Chen and Y. Sun, Development and application of reliability test platform for high-speed punch machine clutch brake system, Journal of Mechanical Science and Technology, 31 (2017) 53–61.

    Article  Google Scholar 

  22. Y. Fu, Y. Liu, L. Cui and X. Xu, Dynamic analysis and control strategy of wet clutches during torque phase of gear shift, Journal of Mechanical Science and Technology, 30(4) (2016) 1479–1496.

    Article  Google Scholar 

  23. D. Karnopp, Computer simulation of stick-slip friction in mechanical dynamic systems, Journal of Dynamic Systems Measurement and Control, 107(1) (1985) 100–103.

    Article  Google Scholar 

Download references

Acknowledgments

This study was supported by the National Natural Science Foundation of China (51975274) and the National Key Laboratory of Science and Technology on Helicopter Transmission (Nanjing University of Aeronautics and Astronautics) (Grant No. HTL-O-20K02).

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Correspondence to Heyun Bao.

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Heyun Bao received her Ph.D. degree in Mechanical Engineering in Nanjing University of Aeronautics and Astronautics (NUAA) in 2007. She was a visiting scholar at University of Virginia (UVA) from 2015 to 2016. She is currently an Associate Professor of the National Key Laboratory of Science and Technology on Helicopter Transmission, NUAA. Her research interests are focused on helicopter transmission system, gear dynamics, rotor dynamic analysis, dynamic modelling, numerical simulations and thermal analysis.

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Bao, H., Li, X. & Huang, W. Calculation method of radial displacement in the engaging process of wet friction clutch. J Mech Sci Technol 35, 3909–3918 (2021). https://doi.org/10.1007/s12206-021-0804-9

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  • DOI: https://doi.org/10.1007/s12206-021-0804-9

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