Journal of Navigation and Port Research (한국항해항만학회지)

Korean Institute of Navigation and Port Research (한국항해항만학회)
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Structural Optimization for LMTT-mover of a Crane

크레인 LMTT용 이동체의 구조최적설계

  • Lee K.-H. (Division of Mechanical Engineering Dong-A University) ;
  • Min K. A. (Graduate school of Dong-A University) ;
  • PARK H. W. (Graduate school of Dong-A University) ;
  • Han D. S. (Graduate school of Dong-A University) ;
  • Han G. J. (Division of Mechanical Engineering Dong-A University)
  • 이권희 (동아대학교 기계공학과) ;
  • 민경암 (동아대학교 기계공학과 대학원) ;
  • 박형욱 (동아대학교 기계공학과 대학원) ;
  • 한동섭 (동아대학교 기계공학과 대학원) ;
  • 한근조 (동아대학교 기계공학과)
  • Published : 2005.06.01
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Abstract

LMTT (Linear Motor-based Transfer Technology) is the horizontal transfer system for yard automation, which has been proposed to take the place of AGV (Automated Guided Vehicle) in the maritime container terminal. The system is based on PMLSM (Permanent Magnetic Linear Synchronous Motor) that consists of stator modules on the rail and shuttle car. It is desirable to reduce the weight of LMTT in order to control the electronic devices with minimum energy. In this research, structural optimization for a mover of shuttle car is performed to minimize the weight satisfying design criteria. The objective function is set up as weight. On the contrary, the design variables are transverse, longitudinal and wheel beams' thicknesses and its height, and the constraints are considered as strength and stiffness.

LMTT는 항만 자동화를 위한 수평 이송이 가능하도록 설계된 셔틀카(shuttle car)하 격자구조의 레일에 부착된 스테이터 모듈(stator module)로 구성된 PMLSM(Permanent Magnetic Linear Synchronous Motor)에 의해 구동된다. 본 논문에서는 강도 및 강성기준을 고려하고 경량화 설계를 위하여 셀 요소로 유한요소 모델링된 이동체(mover)의 구조최적설계를 수행하였다. 설계변수로는 가로빔, 세로빔, 휠 빔의 두께와 가로빔 및 세로빔의 높이를 포함시켰다. 목적함수는 중량, 제한조건 함수는 안전율이 고려된 허용응력과 가로빔의 허용변위로 설정하였다.

Keywords

References

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