Transactions of the Korean Society for Noise and Vibration Engineering (한국소음진동공학회논문집)

The Korean Society for Noise and Vibration Engineering (한국소음진동공학회)
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Experimental Study for the Reduction of Wet-brake Squeal Noise in a Forklift

지게차용 습식 브레이크의 스퀼소음 저감에 관한 실험적 연구

  • 김태종 (부산대학교 기계공학부/기계기술연구원) ;
  • 구자함 (부산대학교 대학원 기계설계공학과) ;
  • 정의봉 (부산대학교 기계공학부) ;
  • 김영현 (현대중공업(주) 선박해양연구소) ;
  • 주원호 (현대중공업(주) 선박해양연구소)
  • Received : 2010.08.27
  • Accepted : 2010.11.29
  • Published : 2010.12.20
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Abstract

The wet brakes used in an industrial forklift often produce noise on braking. Elimination or reduction of this squeal noise is an important task for the improvement of comforts. In this paper, a test rig was developed which was possible for testing of brake noise and an experimental measurement on squeal noise was performed. The causes of the brake noise are identified by experimenting how the factors such as automatic transmission fluid, the groove of friction-plate pad and the material of friction-plate pad affect the squeal noise. In order to identify the squeal characteristics, the signal analyses for noise are performed by using frequency spectrums. Experimental results showed that the viscosity of automatic transmission fluid and the groove pattern of friction-plate pad largely affect the reduction of the wet brake squeal noise in an industrial forklift.

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References

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