| 车内声场的数学模型建立 |
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| 引用本文： | 李世岩,杨小卫.车内声场的数学模型建立[J].振动工程学报,1994,7(3):275-279. |
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| 作者姓名： | 李世岩 杨小卫 |
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| 作者单位： | 江苏理工大学农机学院 |
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| 摘 要： | 本文首先利用Ｈｅｌｍｈｏｌｔｚ方程和Ｇｒｅｅｎ定理推导出适合多种边界条件的车内声场边界积分方程，然后利用边界元数值分析技术离散方程，得到已知某一封闭空间边界的振动特性求解其内部声压的边界元数学模型。作为验证，本文还对两个实例进行了试验，结果表明边界元计算值与理论值和试验实测值吻合良好。
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| 关 键 词： | 车辆 声场 边界元方法 边界积分方程 |
A Mathematical Model of the Vehicle Interior Sound Field |
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| Li Shiyan,Yang Xiaowei.A Mathematical Model of the Vehicle Interior Sound Field[J].Journal of Vibration Engineering,1994,7(3):275-279. |
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| Authors: | Li Shiyan Yang Xiaowei |
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| Abstract: | he boundary integral equations of several boundary conditions are studied by means of Helmholtz equation and Green Theorem.The equations are separated with boundary element numerical analysis technology to obtain the mathematical model by which the vehicle interior acoustic radiation pressure of an enclosed known boundary property can be calculated.As a check,two examples are studied and good agreement exists between the calculated and the measured results. |
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| Keywords: | vehicles sound field boundary element method boundary integral equation |
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