YANG Cheng
College of Mechanical Engineering, Chongqing University, Chongqing 400030，P.R. China；ZHOU Ke
College of Mechanical Engineering, Chongqing University, Chongqing 400030，P.R. China；CHEN Xu
College of Mechanical Engineering, Chongqing University, Chongqing 400030，P.R. China；WU Xingrang
Chang’ an Automotive Engineering Institute, Chongqing 400023 , P.R. ChinaWANG Zhongfang
College of Mechanical Engineering, Chongqing University, Chongqing 400030，P.R. China；ZHOU Jinjia
College of Mechanical Engineering, Chongqing University, Chongqing 400030，P.R. China；FEM/BEM (Finite Element Method/Boundary Element Method) mode analysis of the noise radiation from motorcycle engine shell is conducted. The natural frequency is compared between FEM/BEM analysis and experimental analysis. The FEM/BEM results are agreed with the experiment results, which proves that the finite element model is correct. The frequency response is analyzed and the structure’s noise radiation is simulated by means of FEM/BEM, in order to predict the noise radiation from the motorcycle engine shell and gain the sound field characteristic outside the structure. The calculation data is compared with the experiment data in different frequency bands. The result shows high accordance, which indicates that this method is effective.
杨诚,周科,陈旭,吴行让,王中方,周锦佳.摩托车发动机壳体噪声辐射数值分析[J].重庆大学学报,2009,32(9):987~991
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