| Dynamic Characteristic of Damaged Ship Structures Considering the Warping Deformations |
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| 作者姓名： | NIE Wu WEN Bao- hua CHEN Guo- longCollege of Shipbuilding Engineering Harbin Engineering University Harbin China |
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| 作者单位： | NIE Wu，WEN Bao- hua，CHEN Guo- longCollege of Shipbuilding Engineering，Harbin Engineering University，Harbin 150001，China |
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| 摘 要： | For some largely damaged ships, the conventional methods are unadaptable to estimate their dynamic characteristics asto ships with symmetrical hull section. Based on dry hull modal analysis of flexure-torsion coupling vibration of unsymmetricalship structures about longitudinal center line, a transfer matrix method to calculate the dynamic characteristics is presented.Taken both shear effect and warping deformations into account, the point and field transfer matrices are derived, and the influ-
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| 收稿时间： | 30 September 2006 |
Dynamic characteristic of damaged ship structures considering the warping deformations |
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| NIE Wu,WEN Bao- hua,CHEN Guo- longCollege of Shipbuilding Engineering,Harbin Engineering University,Harbin ,China.Dynamic Characteristic of Damaged Ship Structures Considering the Warping Deformations[J].Journal of Marine Science and Application,2002,1(1):1-8. |
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| Authors: | Nie Wu Wen Bao-hua Chen Guo-long |
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| Institution: | (1) College of Shipbuilding Engineering, Harbin Engineering University, 150001 Harbin, China |
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| Abstract: | For some largely damaged ships, the conventional methods are unadaptable to estimate their dynamic characteristics as to ships with symmetrical hull section. Based on dry hull modal analysis of flexure- torsion coupling vibration of unsymmetrical ship structures about longitudinal center line, a transfer matrix method to calculate the dynamic characteristics is presented. Taken both shear effect and warping deformations into account, the point and field transfer matrices are derived, and the influence on dynamic characteristics is computed according to different damaged positions and ranges. As examples, the damaged structures are calculated and some interesting conclusions are obtained. |
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| Keywords: | damaged ship coupling vibration warping dynamic characteristics |
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