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导纳矩阵元素统计分布特性的研究 被引量:2

Study of statistical distribution for mobility matrix element
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摘要 导纳矩阵是描述结构噪声源的常用基本参量之一,研究导纳矩阵元素之间的统计分布特性有助于结构声源的简化描述。对两个不同风机导纳矩阵元素的统计分布特性进行了分析研究,结果表明,矩阵元素的大小具有近似服从对数正态分布的特性,这为导纳矩阵的实际应用提供了一种有效的简化分析工具。 The mobility matrix is one of usual physics parameter to characterize structure-born sound sources .Studying the statistical distribution of the mobility matrix element has good benefit to simplify characterization of structure-borne sound sources. Two typical fan has been studied and the results of the work has shown that the mobility matrix element have a log 10normal magnitude distribution. It provides a simplified analysis tool to be of practical use of mobility matrix.
机构地区 汕头大学物理系
出处 《声学技术》 EI CSCD 北大核心 2005年第2期121-124,共4页 Technical Acoustics
基金 汕头大学博士启动基金项目
关键词 导纳 对数正态分布 估计量 Characterization Matrix algebra Parameter estimation Statistical methods
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参考文献7

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同被引文献18

  • 1苏建新.楼宇设备工程中的结构声源的简化描述[J].噪声与振动控制,2005,25(4):23-25. 被引量:1
  • 2苏建新,马顺良.楼宇设备工程中结构声功率预测的平均特征值法[J].声学技术,2006,25(2):124-128. 被引量:2
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