Journal of the Society of Naval Architects of Korea (대한조선학회논문집)

The Society of Naval Architects of Korea (대한조선학회)
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Numerical analysis of induction heating for the application of line heating

선상 가열을 위한 고주파 유도 가열의 수치 해석

  • 강중규 (대우중공업(주) 선박해양기술연구소) ;
  • 이장현 (서울대학교 공학연구소) ;
  • 신종계 (서울대학교 조선해양공학과)
  • Published : 2000.08.01
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Abstract

Gas heating, high frequency induction heating and laser heating can be used as the heat-source of line heating. Most of shipyards have been using the gas heating method for line heating. It is difficult to control the residual deformation of gas heating. High frequency induction heating is more feasible for the automation of line heating rather than the gas heating method since it is easy to control the magnitude of heat input. In this study, a numerical model of high frequency induction heating process is proposed for the application of the line heating. The simulation process of the induction heating is composed of the electromagnetic analysis, the heat transfer analysis, and the thermal deformation analysis.

선상가열의 열원으로는 가스 가열법, 고주파 유도 가열법, 그리고 레이저 가열법 등이 사용될 수 있다. 가스 가열법은 많은 조선소등에서 사용되고 있으나 가열 후 얻어지는 잔류변형을 제어하는데 많은 어려움이 있다. 고주파 유도 가열법은 비교적 정확한 변형량 제어가 가능하다는 장점을 가지고 있어서 새로운 선상가열 열원으로서 활용될 수 있을 것이다. 본 연구에서는 고주파 유도가 열법을 이용한 선상 가열의 변형 특성 및 가열장치의 특성을 파악하기 위한 기본단계로써 고주파 유도가열에 의한 열변형 과정에 대한 해석을 시도하였다. 전자장 해석과 와전류 해석, 와전류에 의하여 판에 발생하는 온도 분포, 그리고 열탄소성 변형 해석을 수행하였다.

Keywords

References

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