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차량 클러치 스프링 댐퍼의 진동 전달률 해석 및 측정

Vibration Transmissibility Analysis and Measurement of Automotive Clutch Spring Dampers

  • Jang, Jae-Duk (Korea Powertrain Co., LTD.) ;
  • Kim, Gi-Woo (School of Automotive Engineering, Kyungpook National University) ;
  • Kim, Won-Jin (Department of Mechanical and Automotive Engineering, Keimyung University)
  • 투고 : 2013.08.22
  • 심사 : 2013.10.08
  • 발행 : 2013.10.20

초록

The input torque ripple induced by combustion engines is a significant source of NVH(noise, vibration and harshness) problem in automotive transmissions. Because this torque fluctuation is primarily transmitted to the input shaft of automotive powertrains(e.g., automatic transmissions) when the lock-up clutches are closed, a torsional damper with helical springs is generally inserted between engine and transmissions to isolate the input vibratory energy, which is essential for the passenger comfort. The torsional vibration isolator exhibits frequency ranges in which there is low vibration transmissibility. However, the isolation performance is currently evaluated through the static torsional spring characteristics. In this study, the transmissibility of torsional spring dampers, essential dynamic performance index for vibration isolator, is first experimentally evaluated.

키워드

참고문헌

  1. SAE, 1997, Manual Transmission Clutch Systems; Chapter 8 Torsional Vibration and Tuning Capacity.
  2. Gu, Y., 1996, A Vibration Transmissibility Measurement Using a Mass Dummy, SAE Technical Paper 960475.
  3. Kim, G.-W. and Jang, J.-D., 2012, Evaluation of Torsional Vibration Isolation Damper in Automotive Transmissions Based on In-situ Torque Measurement, Transactions of the Korean Society for Noise and Vibration Engineering, Vol. 22, No. 4, pp. 378-383. https://doi.org/10.5050/KSNVE.2012.22.4.377
  4. Lee, D.-O. and Han, J.-H., 2012, A Comparison of Vibration Isolation Characteristics of Various Forms of Passive Vibration Isolator, Transactions of the Korean Society for Noise and Vibration Engineering, Vol. 22, No. 9, pp. 817-824. https://doi.org/10.5050/KSNVE.2012.22.9.817
  5. Bendat, J. S. and Allan, G. P., 2010, Random Data - Analysis and Measurement Procedures, Wiley, New York.
  6. Rivin, E. I., 2003, Passive Vibration Isolation, ASME Press, New York.
  7. Rao, S. S., 2004, Mechanical Vibrations, Prentice Hall, New Jersey.
  8. Schicker, R. and Wegener, G., 2002, Measuring Torque Correctly, Hottinger Baldwin Messtechnik(HBM) GmbH.
  9. MATLAB/Signal Processing Toolbox V.7.6 User's guide, 2011, The Mathworks.

피인용 문헌

  1. Piezoelectric energy harvesting from torsional vibration in internal combustion engines vol.16, pp.4, 2015, https://doi.org/10.1007/s12239-015-0066-6
  2. Torsional Vibration Isolation Performance Evaluation of Centrifugal Pendulum Absorbers for Clutch Dampers vol.26, pp.4, 2016, https://doi.org/10.5050/KSNVE.2016.26.4.436
  3. Torque Transmissibility Analysis and Measurement of Band-stop Type Torsional Vibration Isolators Using Anti-resonance vol.28, pp.5, 2018, https://doi.org/10.5050/KSNVE.2018.28.5.582