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Study of Hot Spinning Process for Head of CNG Storage Vessel

CNG 저장용기의 두부 성형을 위한 열간스피닝 공정에 관한 연구

  • Lee, Hyun Woo (Creative Engineering System, Pusan Nat'l Univ.) ;
  • Jung, Sung Yuen (Research Institute of Mechanical Technology, Pusan Nat'l Univ.) ;
  • Kim, Chul (Research Institute of Mechanical Technology, Pusan Nat'l Univ.)
  • 이현우 (부산대학교 창의공학시스템) ;
  • 정성윤 (부산대학교 기계기술연구원) ;
  • 김철 (부산대학교 기계기술연구원)
  • Received : 2012.11.12
  • Accepted : 2013.01.10
  • Published : 2013.04.01

Abstract

The fuel storage vessel installed in CNG vehicles can be largely divided into 3 parts: head, cylinder, and dome. Studies of the cylinder and dome parts have already been performed, but sufficient design data is not available about the head part. Therefore, expert field engineers heavily depend upon trial-and-error methods. Therefore, FE analysis is performed to review the hot spinning process for forming the head part of the CNG vessel using the Arbitrary Lagrangian-Eulerian (ALE) method. The effects of forming factors on the load were analyzed. The values of the factors were chosen to avoid defects in the head part and buckling, and the forming feasibility of the head part was investigated. Furthermore, a bursting test was performed to evaluate the safety of the storage vessel.

Keywords

Hot Spinning;Fuel Storage Vessel;Head Part;Roller;Life;FE Analysis

Acknowledgement

Supported by : 지식경제부

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