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J. Ocean Eng. Technol. 2001;15(3):114-119.    

Linear and Nonlinear Wave Pressure Distributions Acting on Vertical Caisson of Large Size in 3-Dimensional Wave Fields
3차원파동장에 있어서 대형연직케이슨에 작용하는 선형 및 비선형의 파압분포특성에 관한 연구
김도삼,신동훈,이봉재
한국해양대학교 토목환경공학부,한국해양대학교 대학원 토목환경공학과,한국해양대학교 대학원 토목환경공학과
© 2001 The Korean Society of Ocean Engineers     Open access / Under a Creative Commons License
Keywords: large size caisson, Goda formula, linear and nonlinear wave pressures distributions
핵심용어: 대형케이슨, 고다공식, 선형 및 비선형파압분포
Abstract
Goda formula (Goda, 1973) has been used in the determination of wave pressures acting on a large size caisson such as the pier of the cable stayed bridge at sea. Goda formula, however, is to evaluate the wave pressures acting the infinite vertical caisson of composite breakwater so that it can`t be applied to a large caisson with finite width and length because of diffraction effects. In the present study, three dimensional nonlinear frequence domain method based on perturbation method and boundary integral method is applied to the computation of the linear and nonlinear wave pressures acting on the front of a large size caisson under the variation of its width and length, and angle of incident wave. The numerical results are compared to Goda`s ones, and then the characteristics of wave pressure distributions acting on a large size caisson are discussed.


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