비선형 점탄성 부싱모델에 대한 주파수와 변위의 영향에 대한 연구

A Study on the Affection of Frequency and Displacement for Nonlinear Viscoelastic Bushing Model

  • 이성범 (인제대학교 기계자동차공학부)
  • 발행 : 2004.04.28

초록

A bushing is a device used in automotive suspension systems to reduce the load transmitted from the wheel to the frame of the vehicle. A bushing is a hollow cylinder, which is bonded to a solid steel shaft at its inner surface and a steel sleeve at its outer surface. The relation between the force applied to the shaft and the relative deformation of a bushing is nonlinear and exhibits features of viscoelasticity. A force-displacement relation for bushings is important for multibody dynamics numerical simulations. For the nonlinear viscoelastic axial response, Pipkin-Rogers model, the direct relation of force and displacement, has been derived from Lianis model and the sinusoidal input was used for Pipkin-Rogers model, and the affection of displacement with frequency change was studied with Pipkin-Rogers model.

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