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| Response Characteristics of Wave-induced Loads and Affecting Factor of Slamming Loads for Ship |
| Received:June 01, 2023 Revised:June 30, 2023 |
| View Full Text View/Add Comment Download reader |
| DOI：10.7643/issn.1672-9242.2023.09.001 |
| KeyWord:wave-induced loads long-term slamming loads speed flaring platform |
| Author | Institution |
| GENG Yan-chao |
China Ship Scientific Research Center, Jiangsu Wuxi , China;Taihu Laboratory of Deepsea Technological Science, Jiangsu Wuxi , China |
| YANG Jun |
China Ship Scientific Research Center, Jiangsu Wuxi , China;Taihu Laboratory of Deepsea Technological Science, Jiangsu Wuxi , China |
| WANG Hai-yang |
Marine Design & Research Institute of China, Shanghai , China |
| BIAN Xin |
China Ship Scientific Research Center, Jiangsu Wuxi , China;Taihu Laboratory of Deepsea Technological Science, Jiangsu Wuxi , China |
| WANG Xue-liang |
China Ship Scientific Research Center, Jiangsu Wuxi , China;Taihu Laboratory of Deepsea Technological Science, Jiangsu Wuxi , China |
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| Abstract: |
| The response characteristics of ship wave-induced loads are complex. The work aims to obtain the wave-induced load characteristics and provide accurate design load, so as to serve for ship structural design. The method of comparing basin model experiments with theoretical predictions was adopted to provide the response curve of wave-induced transfer function, which verified the correctness of theoretical prediction results. Based on long-term prediction results, the distribution pattern of wave-induced loads along the ship was analyzed, and the impact of exceeding probability and ship loading status on wave-induced loads was studied. By changing the exceeding probability and the loading state of the ship, the impact of the both on wave-induced loads was studied. Based on the model test results, the law of the change in slamming bending moment caused by ship speed was obtained. The effect of parameter change on slamming load was analyzed by changing the width, angle, height and other parameters of the side extended flaring platform, to reveal the change law of wave-induced load. The model test results were in good agreement with the theoretical prediction results. The long-term prediction results of vertical shear and torque showed a bimodal M shape along the ship length, while the long-term prediction results of vertical and horizontal bending moments showed a parabolic shape along the ship length. The long-term prediction results of wave-induced loads showed a roughly linear relationship with the exceeding probability. Under large wave height and high speed test conditions, the bending moment of the ship exhibited particularly significant nonlinear characteristics. The wider the width, the smaller the angle, and the lower the height of the side extended flaring platform, the more severe the slamming load. Considering that wave height, speed, and other factors have a significant impact on the slamming moment, in order to reduce the occurrence of slamming during the use of ships, it is considered to avoid large wave height and actively slow down. In addition, in the design phase, in order to reduce the slamming load component generated by the side extended flaring platform, the size, position and angle of the flaring platform should be determined from the design. |
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