DOI QR코드

DOI QR Code

Multi-objective durability and layout design of fabric braided braking hose in cyclic motion

  • Cho, J.R. (Department of Naval Architecture and Ocean Engineering, Hongik University) ;
  • Kim, Y.H. (Graduate School of Mechanical Engineering, Pusan National University)
  • 투고 : 2016.11.03
  • 심사 : 2017.08.01
  • 발행 : 2017.11.20

초록

The fabric braided braking hose that delivers the driver's braking force to brake cylinder undergoes the large deformation cyclic motion according to the steering and bump/rebound motions of vehicle. The cyclic large deformation of braking hose may give rise to two critical problems: the interference with other adjacent vehicle parts and the micro cracking stemming from the fatigue damage accumulation. Hence, both the hose deformation and the fatigue damage become the critical issue in the design of braking hose. In this context, this paper introduces a multi-objective optimization method for minimizing the both quantities. The total length of hose and the helix angles of fabric braided composite layers are chosen for the design variables, and the maximum hose deformation and the critical fatigue life cycle are defined by the individual single objective functions. The trade-off between two single objective functions is made by introducing the weighting factors. The proposed optimization method is validated and the improvement of initial hose design is examined through the benchmark simulation. Furthermore, the dependence of optimum solutions on the weighting factors is also investigated.

키워드

과제정보

연구 과제 주관 기관 : Hongik University, National Research Foundation of Korea (NRF)

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