| 阻振质量结合阻尼对船舶结构振动传递的抑制 |
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| 引用本文： | 喻,浩.阻振质量结合阻尼对船舶结构振动传递的抑制[J].船舶工程,2015,37(5):37-39. |
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| 作者姓名： | 喻 浩 |
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| 作者单位： | 中国船舶工业系统工程研究院,北京 邮编,中国船舶工业系统工程研究院,北京 邮编 |
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| 摘 要： | 利用波分析法研究了结构声在典型船舶结构中的传递规律及其抑制措施,通过数值计算比对了不同阻尼布置的效果。根据全局阻尼的局限性,提出了阻振质量结合阻尼的抑制方法,并通过对某简化船舶结构的方针分析验证了其有效性。研究表明,阻振质量结合阻尼完全可以达到甚至超过全局阻尼的减振效果,且阻尼层敷设在阻振质量之前,效果更明显。这对舰船减振降噪有一定指导意义。
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| 关 键 词： | 波分析法、阻尼、阻振质量、振级落差 |
| 收稿时间： | 2/8/2015 12:00:00 AM |
| 修稿时间： | 2015/5/13 0:00:00 |
Structural Vibration Reduction by Combining Blocking Mass and Damping |
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| Abstract: | Structural vibration transmission and attenuation in typical ship structure is investigated by wave approach. Effect of different damping arrangements are compared with numerical simulation. A new measurement for vibration reduction by combining damping and blocking mass is put out, which is also validated by numerical computation. It is concluded that combining damping and blocking mass may provide as much transmission loss as that by using globe damping, which is useful for structural vibration reduction on board. |
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| Keywords: | wave approach damping blocking mass vibration reduction |
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