Transactions of the Korean Society of Mechanical Engineers A (대한기계학회논문집A)

The Korean Society of Mechanical Engineers (대한기계학회)
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Optimal Design of Lightweight Frame for Heavy Flat-Bed Trailer by Using Taguchi Method

다구찌기법을 이용한 대형 평판트레일러 하부프레임 경량설계

  • Kim, Jin-Gon (School of Mechanical and Automotive Engineering, Catholic University of Daegu) ;
  • Yoon, Min-Su (Steel Structure Research Laboratory, RIST)
  • 김진곤 (대구가톨릭대학교 기계자동차공학부) ;
  • 윤민수 (포항산업과학연구원 강구조연구소)
  • Published : 2010.03.01
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Abstract

For achieving economical fuel consumption, an increase in the load bearing capacity, and for environmental conservation, there is a constant demand for lightweight frames of commercial vehicles used in the transportation industry. In this study, a structural analysis of the frame of a heavy flat-bed trailer was performed to determine the optimal design of a new lightweight frame made of high-strength steel. To identify the key design parameters of the trailer frame, Taguchi's orthogonal array was used in the experiments. Using ANSYS, a commercial FEA program, the frame structure was optimized with respect to stress, deflection, and torsional stiffness by performing stress and vibration analyses. A physical model of the trailer was also built to verify the validity of the numerical analyses. Finally, an on-road fatigue test of the new lightweight frame made of the high-strength steel, ATOS80, was performed to confirm the durability of the new design.

최근 환경문제로 인한 차량의 연료절감이 중요해지면서 수송산업에서도 대형 수송기계의 경량설계에 대한 필요성이 지속적으로 커지고 있다. 본 연구에서는, 고강도강으로 대체된 대형 평판 트레일러 프레임의 경량모델을 개발하기 위하여 구조해석을 수행하였다. 이를 위하여, 트레일러 프레임의 주요 설계변수들을 선정하고 다구찌 기법을 적용하여 응력, 처짐량 그리고 비틀림 강성에 대하여 최적화된 결과를 도출하였다. 또한, 도출된 경량설계안의 타당성을 검토하기 위하여 시작품을 제작하여 실제 내구시험을 수행하였다.

Keywords

References

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  1. Static and Dynamic Finite Element Analyses of a Bulk-Cement Trailer vol.36, pp.8, 2012, https://doi.org/10.3795/KSME-A.2012.36.8.945