| 复杂激励下平置板式浮筏功率流传递特性研究 |
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| 引用本文： | 李新德,宋孔杰,孙玉国.复杂激励下平置板式浮筏功率流传递特性研究[J].应用力学学报,2003,20(2):32-37. |
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| 作者姓名： | 李新德 宋孔杰 孙玉国 |
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| 作者单位： | 山东大学,济南,250061 |
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| 摘 要： | 针对隔振理论研究领域中舰船的振动和噪声控制问题，建立六维^1、2]平置板式弹性浮筏的多机组隔振理论分析计算模型，导出了弹性浮筏传递功率流的表达式，从振动能量传输的角度来评价浮筏系统隔振效果，绘制了功率谱曲线，揭示机组的布置，筏架刚度等结构参数对功率流传递的影响，给出了浮筏设计中结构参数选择的一般准则。
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| 关 键 词： | 平置板式浮筏 隔振 舰船 振动 噪声控制 功率流 传递特性 结构设计 |
| 文章编号： | 1000-4939(2003)02-0032-06 |
| 修稿时间： | 2002年3月20日 |
Study on the Transferring Characteristics of Power Flow Through Raft by Complex Excitations |
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| Li Xinde,Song Kongjie,Sun Yuguo.Study on the Transferring Characteristics of Power Flow Through Raft by Complex Excitations[J].Chinese Journal of Applied Mechanics,2003,20(2):32-37. |
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| Authors: | Li Xinde Song Kongjie Sun Yuguo |
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| Abstract: | Ship vibration and noise control by the isolation theory are studied in this paper. The dynamic 6 dimensional model on the flexible floating raft equipment with multi machines is established to analyze and calculate the power flow. The power flow transmission expression of the floating raft equipment is derived to evaluate the isolation effect of the floating raft equipment from the point of view of vibration energy transmission and the curve of power flow spectra is plotted. The influence of the machines, the raft and the foundation's parameters on the power flow transmitted into the flexible foundation are investigated. A general rule is given to choose the structural parameters. |
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| Keywords: | floating raft power flow vibratory control |
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