| 基础阻抗对隔振效果的影响 |
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| 引用本文： | 谢剑波,何琳,束立红. 基础阻抗对隔振效果的影响[J]. 海军工程大学学报, 2004, 16(4): 102-104 |
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| 作者姓名： | 谢剑波 何琳 束立红 |
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| 作者单位： | 海军工程大学,振动与噪声研究所,湖北,武汉,430033 |
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| 摘 要： | 经典隔振理论评价隔振效果常假定基础为绝对刚性,这在隔振效果评价和测量上带来了很大的问题,导致计算结果偏差很大.针对这一问题推导了柔性基础上的传递率计算公式,讨论了基础阻抗对隔振效果的影响.理论分析表明,柔性基础的基频和质量是影响隔振效果的最重要因素.
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| 关 键 词： | 基础阻抗 传递率 隔振 |
| 文章编号： | 1009-3486(2004)04-0102-03 |
| 修稿时间： | 2004-02-09 |
Effect of base impedance on vibration isolation efficiency |
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| XIE Jian-bo,HE Lin,SHU Li-hong. Effect of base impedance on vibration isolation efficiency[J]. Journal of Naval University of Engineering, 2004, 16(4): 102-104 |
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| Authors: | XIE Jian-bo HE Lin SHU Li-hong |
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| Abstract: | In evaluation of vibration isolation efficiency, the classical vibration isolation theory usually assumes the base to be absolutely rigid, which to some extent causes great problems in evaluating and measuring, and thus leads to great mistakes. Transmissibility formula is brought forward on the basis of flexible base, and the effect of base impedance on vibration isolation efficiency is discussed. Theoretical analysis shows that the basic frequency and the mass of flexible base are the most two important factors which influence the isolation efficiency. |
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| Keywords: | base impedance transmissibility vibration isolation |
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