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손상 선박의 선수파 중 SRTP 실험을 위한 6자유도 운동 계측 시스템 구축 : Development of 6DOF Motion Measurement System for SRTP Test of a Damaged Ship in Head Seas

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Authors
임태구
Advisor
이신형
Major
공과대학 조선해양공학과
Issue Date
2014-02
Publisher
서울대학교 대학원
Keywords
Damaged shipSafe-Return-to-Port (SRTP)Free-running test6DOF motion measurement systemComputational Fluid Dynamics (CFD) validationHead sea
Description
학위논문 (석사)-- 서울대학교 대학원 : 조선해양공학과, 2014. 2. 이신형.
Abstract
Recently the International Maritime Organization (IMO) assists its members to comply with the Safe Return to Port (SRTP) requirement, which was addressed in the 2009 International Safety of Life at Sea (SOLAS) treaty. The requirement was prompted by the increasing size of passenger ships and it defines a threshold where ships crew should be able to return to port without requiring passengers to evacuate. In the present study, the 6DOF motion measurement system using the wireless inertial measurement unit (IMU) was developed for SRTP test of a damaged ship. Reliability of the motion measurement system was verified by comparing with the results obtained by the strapdown method and cable IMU in the same test conditions. All the model tests were carried out in the towing tank of Seoul National University. To prevent drift motion of the ship model and maintain the constant heading angle, the ship model was moored by springs fixed on the towing carriage. The 6DOF motion of the ship model in both intact and damaged conditions was measured in head sea conditions. In case of damaged ship, the motion responses were different from those of intact ship because mass distribution of the ship model was changed by water flooded in the damaged compartment. The flooding water in damaged compartment was observed by video cameras and measured by capacitance-type wave height meters. In addition, the mooring forces and moments exerted on the ship model were calculated for CFD validation.
Language
Korean
URI
https://hdl.handle.net/10371/122727
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College of Engineering/Engineering Practice School (공과대학/대학원)Dept. of Naval Architecture and Ocean Engineering (조선해양공학과)Theses (Master's Degree_조선해양공학과)
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