Transactions of the Korean Society of Automotive Engineers (한국자동차공학회논문집)

The Korean Society of Automotive Engineers (한국자동차공학회)
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Development of Gap Searching System for Car Body Assembly by Decomposition Model Representation

분해 모델을 이용한 자동차 차체의 틈새 탐색 시스템 개발

  • Bae, Won-Jung (Graduate School of Mechanical Engineering, Pusan National University) ;
  • Lee, Sung-Hoon (Graduate School of Mechanical Engineering, Pusan National University) ;
  • Park, Sung-Bae (Body Manufacturing Engineering Team 1, Hyundai Motor Co.) ;
  • Jung, Yoong-Ho (School of Mechanical Engineering, Pusan National University)
  • 배원중 (부산대학교 대학원 기계공학부) ;
  • 이승훈 (부산대학교 대학원 기계공학부) ;
  • 박성배 (현대자동차 차체생기 1팀) ;
  • 정융호 (부산대학교 기계공학부)
  • Received : 2011.10.04
  • Accepted : 2011.12.07
  • Published : 2012.07.01
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Abstract

Large number of part design for aircraft and automobile is preceded by functional or sectional design groups for efficiency. However, interferences and gaps can be found when the parts and sub-assemblies by those design groups are to be assembled. These interferences and gaps cause design changes and additional repair processes. While interference problem has been resolved by digital mockup and concurrent engineering methodology, gap problem has been covered by temporary treatment of filling gap with sealant. This kind of fast fix causes fatal problem of leakage when the gap is too big for filling or the treatment gets old. With this research, we have developed a program to find the gap automatically among parts of assembly so that users can find them to correct their design before manufacturing stage. By using decomposition model representation method, the developed program can search the gap among complex car body parts to be visualized with volumetric information. It can also define the boundary between the gap and exterior empty space automatically. Though we have proved the efficiency of the developed program by applying to automobile assembly, application of the program is not limited to car body only, but also can be extended to aircraft and ship design of large number of parts.

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References

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