| 船舶板壳结构的振动功率流分析 |
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| 引用本文： | 肖功煜,刘微,朱翔.船舶板壳结构的振动功率流分析[J].船海工程,2011,40(6):45-48. |
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| 作者姓名： | 肖功煜 刘微 朱翔 |
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| 作者单位： | 华中科技大学船舶与海洋工程学院,武汉,430074 |
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| 摘 要： | 基于功率流采用有限元法研究了板、壳结构的振动功率流特性,分析结构阻尼、阻尼器、加强筋等参数对结构功率流的影响,给出了相应的功率流矢量图和功率流-频率曲线图.分析表明,结构阻尼的改变、阻尼器阻尼值的变化均没有改变系统的固有频率,但随着结构阻尼的增大或阻尼器阻尼值的减小,结构振动响应的峰值变小了；加强筋明显改变了功率流的大小和传播路径.
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| 关 键 词： | 有限元法 振动功率流 振动结构 结构阻尼、阻尼器、加强筋 |
Structure Vibration and Energy Flow Characteristics of Plates and Shells of Ships |
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| Authors: | XIAO Gong-yu LIU Wei ZHU Xiang |
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| Institution: | (College of Naval Architecture and Ocean Engineering,Huazhong University of Science and Technology,Wuhan 430074,China) |
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| Abstract: | Based on power flow finite element method the vibration power flow characteristics of the plate and shell structure of were studied.The influence of structural damping,damper,strengthen tendons and other parameters upon the power flow of structure was discussed,and the corresponding power flow vector and power flow-frequency curve was obtained.Analysis results showed that changes in structural damping,damper damping values don’t change the system’s natural frequency,but with the structural damping value increases or the damper damping value decreases,the peak vibration response of structures become smaller,and ribs change obviously in the size and spread of power flow path. |
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| Keywords: | finite element method structure power flow structural damping damper strengthen tendons |
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