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Nonlinearity of Biodynamic Response to Shock-Type Vertical Whole-Body Vibration

쇼크타입 수직방향 전신진동에 대한 생체동역학적 반응의 비선형성

  • 안세진 (부산대학교 기계기술연구소) ;
  • ;
  • 유완석 (부산대학교 기계공학부) ;
  • 정의봉 (부산대학교 기계공학부)
  • Published : 2007.02.01

Abstract

Impulsive excitation on vehicle produces shock-type vibration on the seat, which has major frequencies and damping ratios dependent on the characteristics of the suspension, the tire, the seat cushion and so on. The response of single degree of freedom model to a half-sine force input was considered as simple shock-type vibration signal. Quasi-apparent-mass for fifteen subjects was measured with the shock-type vibration generated on a rigid seat mounted on the simulator, so its nonlinearity was apparently found over 6.3 Hz according to the difference of magnitude of the shock.

Keywords

Human Vibration;Whole-Body Vibration;Nonlinearity;Quasi-Apparent-Mass;Biodynamic;Vibration Dose Value(VDV)

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