| Dynamic Analysis of Towed and Variable Length Cable Systems |
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| 作者姓名： | 王树新 王延辉 李晓平 |
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| 作者单位： | School of Mechanical Engineering, Tianjin University, Tianjin 300072, China |
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| 基金项目： | 国家高技术研究发展计划(863计划);天津大学新世纪优秀人才计划(NCET) |
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| 摘 要： | Towed cable systems are frequently used in marine measurements where the length of the towed cable varies during launch and recovery. In this paper a novel method for modeling variable length cable systems is introduced based on the finite segment formulation. The variable length of the towed cable is described by changing the length of the segment near the towing point and by increasing or decreasing the number of the discrete segments of the cable. In this way, the elastic effects of the cable can be easily handled since geometry and material properties of each segment are kept constant. Experimental results show that the dynamic behavior of the towed cable is consistent between the model and the physical cable. Results show that the model provides numerical efficiency and simulation accuracy for the variable length towed system.
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| 关 键 词： | 水下拖航系统 电缆动力学 弹性连接点 变量长度 |
| 修稿时间： | 2006-09-102007-03-20 |
Dynamic Analysis of Towed and Variable Length Cable Systems |
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| WANG Shu-xin,WANG Yan-hui,LI Xiao-ping.Dynamic Analysis of Towed and Variable Length Cable Systems[J].China Ocean Engineering,2007,21(2):331-341. |
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| Authors: | WANG Shu-xin WANG Yan-hui LI Xiao-ping |
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| Institution: | School of Mechanical Engineering, Tianjin University, Tianjin 300072, China |
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| Abstract: | Towed cable systems are frequently used in marine measurements where the length of the towed cable varies during launch and recovery. In this paper a novel method for modeling variable length cable systems is introduced based on the finite segment formulation. The variable length of the towed cable is described by changing the length of the segment near the towing point and by increasing or decreasing the number of the discrete segments of the cable. In this way, the elastic effects of the cable can be easily handled since geometry and material properties of each segment are kept constant. Experimental results show that the dynamic behavior of the towed cable is consistent between the model and the physical cable. Results show that the model provides numerical efficiency and simulation accuracy for the variable length towed system. |
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| Keywords: | underwater towed system cable dynamics multibody dynamics variable length elastic segments |
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