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J. Ocean Eng. Technol. 2006;20(4):70-75.    

Effects of the Multi-directional Irregular Waves on the Motion Responses and Tension Variations of ISSC-TLP
Lee, Chang-Ho;
Department of Naval Architecture, Tongmyong University;
ISSC-TLP의 운동응답 및 변동장력에 미치는 다방향 불규칙파의 영향
이창호;
동명대학교 조선공학과;
© 2006 The Korean Society of Ocean Engineers     Open access / Under a Creative Commons License
Keywords: Multi-directional irregular waves, Motion responses, Tension variations, TLP(Tension leg platform), Spectral analysis, Frequency domain
핵심용어: 다방향 불규칙파, 운동응답, 변동장력, 인장계류식 해양구조물, 스펙트럴 해석, 주파수 영역
Abstract
A numerical procedure is described for estimating the effects of the multi-directional irregular waves on the motion responses and tension variations of the ISSC-TLP. The numerical approach is based on a three-dimensional source distribution method and a spectral analysis technique of directional waves. The spectral description for the linear system of ISSC-TLP in the frequency domain is sufficient to completely define the motion responses and tension variations. This is because both the wave inputs and responses are stationary Gaussian random processes, of which the statistical properties in the amplitude domain are well known. The numerical results for the linear motion responses and tension variations in regular waves are compared with the experimental and numerical ones, which are obtained in the literature. The results of comparison confirmed the validity of the proposed approach.


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