| 结构振动声强法研究及应用 |
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| 引用本文： | 李凯,赵德有,黎胜.结构振动声强法研究及应用[J].应用声学,2010,29(5):391-400. |
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| 作者姓名： | 李凯 赵德有 黎胜 |
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| 作者单位： | 1. 工业装备结构分析国家重点实验室,大连,116024;大连理工大学,船舶工程学院,大连,116024
2. 大连理工大学,船舶工程学院,大连,116024 |
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| 摘 要： | 振动声强技术通过绘制功率流矢量图和流线图来分析结构噪声源及能量传播路径,可以清晰体现振动声能的分布和传播。对振动和噪声控制具有重要的理论意义和应用前景。本文总结了振动声强试验和理论计算技术的发展,并推导了受迫振动板中声强分量与振动能量的数学关系;最后对振动声强法在复杂结构振动功率流控制和结构损伤识别中的应用进行了展望。
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| 关 键 词： | 振动声强 声强试验技术 结构噪声 振动功率流 损伤识别 |
Survey of structural vibration intensity methods |
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| LI Kai,ZHAO De-You and LI Sheng.Survey of structural vibration intensity methods[J].Applied Acoustics,2010,29(5):391-400. |
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| Authors: | LI Kai ZHAO De-You and LI Sheng |
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| Institution: | 1,2) (1 State Key Laboratory of Structural Analysis for Industrial Equipment,Dalian 116024) (2 School of Naval Architecture,Dalian University of Technology,Dalian 116024) |
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| Abstract: | The transmission and distribution of vibration power flow in sturcture is analyzed by the structural vibration intensity(VI) method.The VI vector and streamline map are used to indicate the location of vibration power source and the sinking position where the energy is dissipated.From the viewpoints of structural noise and vibration control,it has important theoretical significance and application prospects to further study the theoretical and experimental techniques of VI.This paper elaborates the basic principle and development status quo of vibration intensity measurement and calculation technology,and outlines the further trends and applications of VI technology on vibration power control and structural damage identification. |
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| Keywords: | Vibration intensity Ⅵmeasurement technology Structure-bome noise Vibration power flow Damage identification |
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