复杂结构消声器消声特性仿真研究  

Simulation Study on Acoustic Characteristics of Exhaust Muffler

作　　者：李健[1] 郑忠才[2] 高岩[3] 张坤金[2] 陈海鸥[2] 

机构地区：[1]山东电力研究院,济南250101 [2]山东建筑大学机电学院,济南250101 [3]山东电子职业技术学院,济南250014

出　　处：《拖拉机与农用运输车》2010年第2期52-54,共3页Tractor & Farm Transporter

基　　金：山东省科技攻关项目(2006GG2206005)

摘　　要：通过建立消声器内部声场的三维数学模型,采用有限元法对复杂结构消声器传递损失进行了仿真计算,着重分析了不同的结构参数对消声器传递损失的影响,根据分析结果优化了消声器的结构,有效地提高了消声器的消声性能,为复杂结构消声器的设计提供了参考。With the three dimensional finite element mathematical model, simulation of transmission loss of the muffling structure is carried out. The effects of the different structure parameters on the muffler＇ s transmission loss are discussed with the finite element method, and the further improvement is pointed out. The corresponding regularities are obtained with the results of computations ,which are helpful for muffler design. It is shown that the three dimensional simulations and analysis with the finite element method can be applied to design and improvement of actual mufflers.

关 键 词：消声器 有限元法 消声特性 传递损失 

分 类 号：TB535.2[理学—物理]