Journal of the Korean Society for Precision Engineering (한국정밀공학회지)

Korean Society for Precision Engineering (한국정밀공학회)
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Structural Analysis for a 70/15 ton×105 m Level Luffing Crane

70/15 ton×105 m 레벨러핑 크레인의 구조해석

  • Kim, Min-Saeng (School of Mechanical and Aerospace Engineering, Seoul National Univ.) ;
  • Shin, Yoo In (Graduate School, Gyeongsang National Univ.) ;
  • Song, Chul Ki (School of Mechanical Engineering, ERI, Gyeongsang National Univ.)
  • 김민생 (서울대학교 기계항공공학부) ;
  • 신유인 (경상대학교 대학원) ;
  • 송철기 (경상대학교 기계공학부, 공학연구원)
  • Received : 2013.06.18
  • Accepted : 2013.08.22
  • Published : 2013.09.01
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Abstract

Evaluation of the structural analysis for a 70/15 ton${\times}$105 m LLC (Level Luffing Crane) was conducted with an FEM Tool. Due to a discordance of the modeling and element type, the LLC was progressively analyzed after dividing it into the boom, main structure and rocker. All loads such as slewing, traveling and wind load, etc., that are indicated in the reference standards, were inputted as various severe conditions of the LLC. The deformation, equivalent stress(Von Mises stress), buckling characteristics were evaluated for the LLC structures. The stress concentrated areas over the allowable stress were identified, and reinforcement work was performed with a stiffener.

Keywords

References

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