한국정밀공학회지 (Journal of the Korean Society for Precision Engineering)

  • 제17권9호
  • /
  • Pages.122-132
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  • 2000
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  • 1225-9071(pISSN)
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  • 2287-8769(eISSN)
한국정밀공학회 (Korean Society for Precision Engineering)
권호 표지

자동차 시트 및 마네킹 시스템의 강제 진동

Forced Vibration of Car Seat and mannequin System

  • 김성걸 (국민대학교 자동차 공학 전문대학원)
  • Kim, Seong-Geol (Graduate School of Autimotive Engineering, Kookmin University)
  • 발행 : 2000.09.01
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초록

A simplified modeling approach of forced vibration for occupied car seats was demonstrated by using a mathematical model presented in 'Free Vibration of Car seat and Mannequin System' nonlinear and linear equations of motions were rederived for forced vibration and the transfer function was used to calculate the frequency response function. The experimental apparatus were set up and hydraulic shaker was used to obtain the system responses. Through the tests mannequin's head had a lot of problems and the responses with a head and without a head were measured. To explore the effects of linear dampings and friction moments at the joints linear analyses were performed. New sets of linear spring and damping coefficients and torsional dampings at the joints were calculated through parameter study to match up with experimental results. Good agreement between experimental and simulation frequency response estimates were obtained both in terms of locations of resonances and system deflection shapes at resonance indicating that this is a feasible method of modeling seated occupants.

키워드

참고문헌

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