| 求解随机振动结构声辐射的统计边界元方法 |
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| 引用本文： | 刘钊, 陈心昭. 求解随机振动结构声辐射的统计边界元方法[J]. 声学学报, 1997, 22(6): 495-500. DOI: 10.15949/j.cnki.0371-0025.1997.06.003 |
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| 作者姓名： | 刘钊 陈心昭 |
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| 作者单位： | 中国科学院等离子体物理研究所，合肥工业大学 |
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| 摘 要： | 机器的机械振动在音频范围内大多是具有明显随机性的随机过程,普通边界元方法不能计算这类具有随机边界条件的结构声辐射问题。本文提出将边界元方法和统计方法相结合的统计边界元方法,导出了求解随机振动物体所辐射噪声声场的计算公式。通过求解随机声场算例的计算,表明本文所提出的方法是正确的。
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| 收稿时间： | 1996-07-31 |
Statistic boundary element analysis for structural sound radiation of random vibration |
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| LIU Zhao, CHEN Xinzhao. Statistic boundary element analysis for structural sound radiation of random vibration[J]. ACTA ACUSTICA, 1997, 22(6): 495-500. DOI: 10.15949/j.cnki.0371-0025.1997.06.003 |
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| Authors: | LIU Zhao CHEN Xinzhao |
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| Abstract: | Most mechnical vibration of machine is a random process of obvious randomness.The common boundary element method can not calculate the problem about the structural sound radiation with random boundary condition. In this paper, a statistic boundary element method is developed that combines the statistic method with the common boundary element method,and thus obtained a calculating formula to solve the sound field radiating by a structure with random vibration. Through an example solved the random sound field, it has been proved that the method is correct. |
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