| 冲击损伤对浮筏隔振系统固有频率影响的数值分析 |
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| 引用本文： | 蒋丰,冯奇,汪玉.冲击损伤对浮筏隔振系统固有频率影响的数值分析[J].噪声与振动控制,2005,25(5):4-6. |
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| 作者姓名： | 蒋丰 冯奇 汪玉 |
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| 作者单位： | 1. 同济大学,固体力学教育部重点实验室,上海,200092
2. 海军装备研究院舰船所,北京,100037 |
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| 摘 要： | 浮筏隔振系统的固有频率是影响其隔振性能的重要指标之一。浮筏受到较强冲击荷载作用时隔振系 统可能会出现损伤。采用数值计算的方法初步研究了冲击造成的损伤对浮筏固有频率的影响,分析了筏架材料刚 度退化、减振器破坏等因素对浮筏隔振系统固有频率的影响程度。
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| 关 键 词： | 振动与波 浮筏 损伤 频率 |
| 文章编号： | 1006-1355(2005)05-0004-03 |
| 收稿时间： | 2005-03-22 |
| 修稿时间： | 2005年3月22日 |
Numerical Analysis of the Effect of Damage Caused by Shock on Natural Frequency of Floating Raft |
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| JIANG Feng,FENG Qi,WANG Yu.Numerical Analysis of the Effect of Damage Caused by Shock on Natural Frequency of Floating Raft[J].Noise and Vibration Control,2005,25(5):4-6. |
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| Authors: | JIANG Feng FENG Qi WANG Yu |
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| Affiliation: | 1. Key Laboratory of Solid Mechanics of the Ministry of Education, TongJi University, Shanghai 200092, China;2. Naval Research Center, Beijing 100037, China |
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| Abstract: | The natural frequency of floating raft is an important factor to affect its performance of vibration isolation. The floating raft is likely to be damaged when it is shocked hard. In this paper the effect of damage caused by shock on natural frequency of the floating raft is preliminarily studied by numerical calculation method. The effect that the factors such as the rigidity degeneration of raft material and the invalidation of vibration absorbers have on the natural frequency is analyzed. |
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| Keywords: | vibration and wave floating raft damage frequency |
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