基于声辐射模态模型求解声功率灵敏度
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摘要
声功率灵敏度分析揭示了结构振动引起的辐射声功率与结构设计变量之间的关系。通过利用声辐射模态模型来处理声辐射环节,利用有限元振动模型来处理结构振动环节,从而提出一种新的声功率灵敏度求解方法。在带障板的加筋板声辐射模型中,采用较常用的瑞利积分模型处理辐射环节的方法对其进行了验证。最终验证了该方法的可行性。
The sound power sensitivity analysis reveals the relationship between the radiation power caused by structure vibration and the design variables of structure. A new method for solving sound power sensitivity was presented by using acoustic radiation mode model to deal with the sound radiation and using finite element model to deal with the structure vibration. Taking as an example the plate with infinite baffled panel, the feasibility of the method was verified by comparing the results with those of a common method of using Rayleigh integral model in dealing with the radiation behavior.
The sound power sensitivity analysis reveals the relationship between the radiation power caused by structure vibration and the design variables of structure. A new method for solving sound power sensitivity was presented by using acoustic radiation mode model to deal with the sound radiation and using finite element model to deal with the structure vibration. Taking as an example the plate with infinite baffled panel, the feasibility of the method was verified by comparing the results with those of a common method of using Rayleigh integral model in dealing with the radiation behavior.
引文
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[6]刘辉,项昌乐.车辆动力传动系固有特性灵敏度分析及动力学修改[J].汽车工程,2003,25(6):591-594.
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[10]姜哲.声辐射问题中的模态分析:Ⅰ理论[J].声学学报,2004,29(3):373-378.
[11]Cunefare KA,Currey MN.On the exterior acoustic radiationmodes of structures[J].J.Acoust.Soc.Am,1994,96(4):2302-2312.
[12]Currey MN,Cunefare K A.The radiation modes of baffled fi-nite plates[J].J.Acoust.soc.Am,1995,98(3):1570-1580.
[13]毛琦波,姜哲.通过声辐射模态研究结构噪声的有源控制[J].江苏理工大学学报,2000,21(4):1-6.
[14]李双,陈克安.结构声辐射有源控制中主导辐射模态的抵消及次极力的最优布置[J].噪声与振动控制,2006,26(6):62-67.
[15]毛琦波,徐柏龄.对声辐射模态法的改进[J].振动工程学报,2002,15(3):262-266.
[2]张军,兆文忠.结构声辐射有限元/边界元法声学-结构灵敏度研究[J].振动工程学报,2005,18(3):366-370.
[3]DennyFritze,SteffenMarburg.FEM-BEM-coupling and struc-tural-acoustic sensitivity analysis for shell geometries[J].J.computers&structures,2005,83(2-3):143-154.
[4]刘晔.基于灵敏度分析的结构损伤识别中的传感器优化配置[J].地震工程与工程振动,2003,23(6):85-90.
[5]李雪艳,刘济科.基于振动特性灵敏度分析的梁结构损伤识别[J].华南理工大学学报,2003,23(21):119-121.
[6]刘辉,项昌乐.车辆动力传动系固有特性灵敏度分析及动力学修改[J].汽车工程,2003,25(6):591-594.
[7]张军,兆文忠.结构声辐射边界元声学灵敏度研究[J].大连铁道学院学报,2005,26(3):12-15.
[8]Cunefare KA,Koopmann G H.Acoustic design sensitivity forstructural radiators.Trans[J].ASME,J.Vib.Acoust,1992,114(2):178-186.
[9]Salagame R R,Koopmann G H.Analytical Sensitivity of A-coustic Power Radiated from Plates[J].J.Vib.Acoust,1995,117(1):43-45.
[10]姜哲.声辐射问题中的模态分析:Ⅰ理论[J].声学学报,2004,29(3):373-378.
[11]Cunefare KA,Currey MN.On the exterior acoustic radiationmodes of structures[J].J.Acoust.Soc.Am,1994,96(4):2302-2312.
[12]Currey MN,Cunefare K A.The radiation modes of baffled fi-nite plates[J].J.Acoust.soc.Am,1995,98(3):1570-1580.
[13]毛琦波,姜哲.通过声辐射模态研究结构噪声的有源控制[J].江苏理工大学学报,2000,21(4):1-6.
[14]李双,陈克安.结构声辐射有源控制中主导辐射模态的抵消及次极力的最优布置[J].噪声与振动控制,2006,26(6):62-67.
[15]毛琦波,徐柏龄.对声辐射模态法的改进[J].振动工程学报,2002,15(3):262-266.
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