| 李凯,赵德有,黎胜.结构振动声强法研究及应用[J].,2010,29(5):391-400 |
| 结构振动声强法研究及应用 |
| Survey of structural vibration intensity methods |
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| 中文摘要: |
| 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。 |
| 英文摘要: |
| 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. |
| DOI：10.11684/j.issn.1000-310X.2010.05.013 |
| 中文关键词: 振动声强 声强试验技术 结构噪声 振动功率流 损伤识别 |
| 英文关键词: Vibration intensity Ⅵmeasurement technology Structure-bome noise Vibration power flow Damage identification |
| 基金项目: |
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