Journal of the Computational Structural Engineering Institute of Korea (한국전산구조공학회논문집)

Computational Structural Engineering Institute of Korea (한국전산구조공학회)
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Rigid Body Dynamic Analysis on the Spent Nuclear Fuel Disposal Canister under Accidental Drop and Impact to the Ground: Numerical analysis

사고로 지면으로 추락낙하 충돌하는 고준위폐기물 처분용기에 대한 기구동역학 해석: 수치해석

  • Kwon, Young-Joo (Department of Mechanical & Design Engineering, Hongik University)
  • 권영주 (홍익대학교 기계정보공학과)
  • Received : 2013.07.31
  • Accepted : 2013.10.21
  • Published : 2013.10.31
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Abstract

This paper is the second paper among two papers which constitute the paper about the rigid body dynamic analysis on the spent nuclear fuel disposal canister under accidental drop and impact to the ground. This paper performed the numerical study on the rigid body dynamic analysis. Through this study the impulsive force which is occurring in the spent nuclear fuel disposal canister under accidental drop and impact to the ground and required for the structural safety design of the canister is computed numerically. The main content of this numerical study is about the technical method how to compute the impulsive forces occurring in the canister under accidental drop and impact to the ground by using the commercial rigid body dynamic analysis computer codes. On the basis of this study the impulsive force which is occurring in the canister in the case of collision with the ground is numerically computed. This numerically computed impulsive force is increasing as the canister weight is increasing, and the canister falls plumb down and collides with the ground in three types according to the analysis results.

본 논문은 두 편으로 구성된 사고로 지면에 추락낙하 충돌하는 고준위폐기물 처분용기에 대한 기구동역학 해석 논문 중 두 번째 논문으로 기구동역학 해석에 대한 수치해석연구를 수행하였다. 이를 통하여 고준위폐기물 처분용기의 구조 안전성 설계에 요구되는 처분용기 처분 시 사고로 추락낙하 하여 지면과 충돌하는 경우 처분용기에 가해지는 충격력을 수치적으로 구하였다. 수치해석 연구의 주된 내용은 상용 기구동역학 해석코드를 이용하여 처분장에서 운송차량으로 처분용기 취급 시 사고로 추락낙하 하여 지면과의 충돌 시 처분용기에 발생하는 충격력을 구하는 기술적인 방법에 관한 것이며 이를 토대로 지면과 충돌 시 처분용기에 발생하는 충격력을 구하는 문제를 수치적으로 다루었다. 이렇게 수치적으로 구한 처분장에서 처분용기 운송 시 운반차량에서 사고로 추락낙하 하여 지면과 충돌하는 처분용기에 발생하는 충격력을 분석한 결과 처분용기의 무게가 증가 할수록 충격력도 증가하며 처분용기는 추락낙하 하여 세 가지 유형으로 지면과 충돌함을 알 수 있었다.

Keywords

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  1. Theoretical and numerical computation of impact impulse due to frictionless collision experienced by a spent nuclear fuel disposal canister accidentally dropped on the ground vol.30, pp.2, 2016, https://doi.org/10.1007/s12206-016-0117-6
  2. Impact Force Applied on the Spent Nuclear Fuel Disposal Canister that Accidentally Drops and Collides onto the Ground vol.40, pp.5, 2016, https://doi.org/10.3795/KSME-A.2016.40.5.469