대형 컨테이너선의 직접해석법에 관한 비교 연구
Comparative Study on the Application of Direct Analysis Method to Large Container Carriers
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Abstract
Recently, direct load analysis using ship motion program is required to confirm structural safety for Post-Panamax class large container carrier. However, there is no exact comparative study data for structural response between 2D and 3D wave load. So, in this paper, to compare the hull girder stress response between 2D versus 3D wave load calculation method, direct load analysis and global F.E analysis have been performed for three kinds of large container vessels using each 2D and 3D wave load calculation program. The results of 2D wave load RAOResponse Amplitude Operator of each dominant load parametervertical, torsional and horizontal moment aregenerally bigger than that of 3D results, especially in vertical wave bending moment. And the results of structural analysis based on the equivalent design wave method shows that there is big differences in view of stress, but the stress distribution is very similar for each wave load case.
참고문헌 (8)
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