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주행 중 자동차 앞 범퍼의 강도 내구성에 관한 연구

Study on Strength Durability of Automotive Front Bumper during Driving

  • Han, Moon-Sik (Department of Mechanical and Automotive Engineering, Keimyung University) ;
  • Cho, Jaeung (Department of Mechanical and Automotive Engineering, Kongju National University)
  • 투고 : 2013.06.04
  • 심사 : 2013.07.24
  • 발행 : 2013.08.15

초록

This study investigates the strength durability of an automotive front bumper subjected to vibrations during driving. Through structural analyses,the maximum equivalent stresses of models 1 and 2 were found to be 187.09 and 278.4 MPa, respectively. The maximum deformations of models 1 and 2 were 1.3772 and 2.675 mm, respectively. As model 1 shows less deformation than model 2, itis stronger than model 2. Models 1and 2 show natural frequencies within 230 Hz as the range of the maximum harmonic response frequency. Models 1 and 2 have maximum amplitude displacements of 0.105 and 0.154 mm at critical frequencies of 159 and 110 Hz, respectively. As model 1 has a higher critical frequency than model 2, it has more strength durability than model 2. This study result can be effectively utilized for the design of a front bumper by investigating prevention against damage and its strength durability.

키워드

참고문헌

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