An experimental study on the dynamic response of a hull girder subjected to near field underwater explosion |
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| Affiliation: | 1. College of Shipbuilding Engineering, Harbin Engineering University, 145 Nantong Street, Harbin, China;2. School of Mathematics, University of Birmingham, Edgbaston, Birmingham, United Kingdom;1. School of Naval Architecture and Ocean Engineering, Huazhong University of Science and Technology, Wuhan 430074, China;2. Department of Naval Architecture Engineering, Naval University of Engineering, Wuhan, China |
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| Abstract: | An experiment of hull girder model subjected to near field underwater explosion at midship is implemented. High-speed photography is applied to achieve the time history of hog displacement of the hull girder model subjected to shock wave of undex. The determination method of hog distortion using these show-motion pictures is presented. The experiment also achieves the local plate distortion of the hull girder model. Based on these works, the damage mechanism and mode of hull girder subjected to near field undex at midship are discovered. Finally, the coupling effect between whole motion of hull girder and distortion of local structure is discussed. |
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| Keywords: | Underwater explosion Shock wave Near field Hull girder Hog damage |
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