Transactions of the Korean Society of Automotive Engineers (한국자동차공학회논문집)

The Korean Society of Automotive Engineers (한국자동차공학회)
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Structural Strength Analysis due to Rib Thickness of Lower Arm

로워암 리브 두께에 따른 구조 강도 해석

  • Cho, Jaeung (Department of Mechanical & Automotive Engineering, Kongju National University) ;
  • Han, Moonsik (Department of Mechanical & Automotive Engineering, Keimyung University)
  • 조재웅 (공주대학교 기계자동차공학부) ;
  • 한문식 (계명대학교 기계자동차공학과)
  • Received : 2013.05.07
  • Accepted : 2013.05.24
  • Published : 2014.01.01
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Abstract

This study investigates the structural strength analysis due to rib thickness of lower arm. At structural analysis, model 1 has the most deformation by comparing three models. As most equivalent stress is shown at the part connected with wheel knuckle, the strength becomes weaker in cases of three models. At fatigue analysis, model 1 becomes most unstabilized among three models. Model 3 has most fatigue life and the next model is model 2. The range of maximum harmonic response frequencies becomes 140 to 175Hz in cases of three models. Because the critical frequency at model 3 becomes highest among three models but the stress exceeds yield stress, model 3 becomes most unstabilized at vibration durability. As models 1 and 2 has less than yield stress, these models become stabilized. Model 2 becomes most favorable by comparing three models at structural, fatigue and vibration analyses. This study result can be effectively utilized with the design of lower arm by investigating prevention against damage and its strength durability.

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References

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