轨道交通箱形梁二次结构噪声分析
nalysis on the second structural noise of box girder of rail transit
建立了箱形梁动力学模型，使用有限元法对其进行振动响应分析。并将表面节点的振动计算结果，作为边界条件输入到Sysnoise。在patran中建立二维面单元模型，导入Sysnoise作为边界元模型。采用间接边界元法对箱形梁结构的声辐射进行计算，得到箱形梁二次结构辐射声强空间分布特性。
he vibration response calculation is carried on by Finite Element Method(FEM) for the box girder’s dynamics model.Taking the the vibration response of the nodes on the surface as the boundary condition.The 2-D model with surface element is established by PATRAN ,which is treated as the boundary element model used in SYSNOISE. The calculation of the box girder structure-born sound radiation is carried on by IBEM(indirect boundary element method),for the law of the sound intensity distribution in the field space.
龚超、柴启寅
铁路运输工程声学工程工程基础科学
有限元间接边界元箱形梁结构噪声
FEMIBEMbox girderstructural noise
龚超,柴启寅.轨道交通箱形梁二次结构噪声分析[EB/OL].(2009-12-23)[2025-08-19].http://www.paper.edu.cn/releasepaper/content/200912-850.点此复制
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