Numerical Simulation of Structural Response in Bow Collision (1st Report)

J. Ocean Eng. Technol. 2000;14(2):28-35.

선수 충돌시 구조 붕괴 거동에 대한 수치해석(제1보)

박명규

한국해양대학교

Keywords: bow collision, Structural behavior, Collision bulkhead, Dynamic time integration explicit solution, Bulbous bow, Collision critical speed

핵심용어: 선수충돌, 구조이동, 충돌격벽, 동적 시간 적분양의 해, 구상선수, 충돌임계속도

Abstract

In this paper a complicated structural behavior in collision and its effect of energy transmission to the collision bulkhead was examined through a methodology of the numerical simulation to obtain a ideal bow construction and a location of collision bulkhead against heat on collision. At present the bow structure is normally designed in consideration of its specific structural arrangement and internal and external loads in these areas such as hydrostatic and dynamic pressure wave impact and bottom slamming in accordance with the Classification rules and the specific location of collision bulkhead by SOLAS requirement. By these studies the behavior of the bow collapse due to collision was synthetically evaluated for the different size of tankers and its operational speed limits and by the results of these simulation it provides the optimal design concept for the bow construction to prevent the subsequent plastic deformation onto or near to the collision bulkhead boundary and to determine the rational location of collision bulkhead.