| 结构高频振动的统计能量分析 |
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| 引用本文： | 罗世辉,沈荣瀛.结构高频振动的统计能量分析[J].西南交通大学学报,1992(5). |
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| 作者姓名： | 罗世辉 沈荣瀛 |
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| 作者单位： | 西安交通大学振动冲击和噪声测试中心，上海交通大学 |
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| 摘 要： | 本文应用统计能量分析(SEA)方法对一个两端加盖圆筒的振动响应能量进行了估计,讨论了SEA 参数的确定方法,并用实验进行了验证,所得结果表明 SEA 是解决复杂结构高频振动的一个有效的方法,SEA 参数与结构的连接阻抗和辐射阻抗、原点导纳有关,可通过测量间接求得,但测量精度有待进一步提高。
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| 关 键 词： | 结构 振动 统计能量分析 功率流 |
Statistical Energy Analysis of High Frequency Vibrating Structures |
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| Luo Shihui.Statistical Energy Analysis of High Frequency Vibrating Structures[J].Journal of Southwest Jiaotong University,1992(5). |
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| Authors: | Luo Shihui |
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| Institution: | Luo Shihui (Meas.centre of Vib.Shock and Noise)
Sheng Rongyin (Shanghai Jiaotong Univ.) |
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| Abstract: | Statistical energy analysis(SEA)is used to estimate vibration
energy of a ends-capped thin shell cylinder,with the approach
of determining SEA parameters discussed in detail.Experimental
results show that SEA is an effective way of solving high
frequency vibration problems of complex structures.SEA para-
meters which are dependent upon connection impedance,radiation
impedance and driving point admittance can be measured from
experiments,but the measurement precision should be developed
further. |
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| Keywords: | structure vibration SEA power flow |
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