A Study on the Motion Responses and the Drift Forces of Semi-Submersible Drilling Rigs in the Damaged Condition

J. Ocean Eng. Technol. 1988;2(2):27-36.

Park Rho-Sik,Kim Seong-Keun,Kim Jong-Hyeon

손상 상태에서의 반잠수식 해양구조물의 운동 응답 및 표류력에 관한 연구

박노식,김성근,김종현

울산대학교 조선 및 해양공학과,울산대학교 조선 및 해양공학과,㈜현대 상선 영업부

Keywords: Drilling Rigs, Radiation Potential, Wave Exciting Force, Motion Response, Drift Force

핵심용어: 시추선, 방사포텐셜, 파랑 강제력, 운동응답, 표류력

Abstract

For the purposes of drilling oil field and extracting oil deep water in more rough weather, the size of drilling rigs must be estimated. In this paper, the three dimensional source distribution method is used and we assume 10 deg. heeling and trimming condition of the drilling rig(SR-192). Also, the effects of the hydrodynamic forces which include the drift forces for field method, and the motion responses are studied with changing the incident wave direction in the assumed inclining condition. The theory and numerical codes used in this thesis appeared to be very useful for the preliminary design of drilling rigs.