混合动力系统变速器箱体振动特性分析
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摘要
为了改善汽车混合动力系统变速器的振动噪声问题,该文以某混合动力系统变速器箱体为研究对象,以分析变速器箱体振动特性为目标,利用Pro/E软件建立箱体的三维模型,利用Hyper Mesh软件建立箱体有限元模型。通过ANSYS软件分析平台进行模态仿真计算,获得箱体的前8阶振动特性,并与模态试验数据进行对比,验证了所建模型的合理性,结果表明,变速器壳体的共振频率主要与齿轮副的啮合频率有关。为变速箱总成前期研发和后期优化提供了依据。
In order to improve the vibration and noise of transmission hybrid system,taking the transmission case in the hybrid power system as the research object, the purpose of this paper is to analyze the vibration characteristics of transmission case,Pro/E software is used to build 3 D model of transmission case, then finite element model of transmission case is established using Hyper Mesh software. Model simulation is carried out with ANSYS that is used as the analysis platformto obtain the first eight-step inherent characteristics of case structure, and then compared with the modal test data, the rationality of the model is verified. The results show that the resonance frequency of the transmission case is mainly related to the meshing frequency of the gear pair. It provides the basis for the development and optimization of the transmission assembly in the early stage and final stage.
In order to improve the vibration and noise of transmission hybrid system,taking the transmission case in the hybrid power system as the research object, the purpose of this paper is to analyze the vibration characteristics of transmission case,Pro/E software is used to build 3 D model of transmission case, then finite element model of transmission case is established using Hyper Mesh software. Model simulation is carried out with ANSYS that is used as the analysis platformto obtain the first eight-step inherent characteristics of case structure, and then compared with the modal test data, the rationality of the model is verified. The results show that the resonance frequency of the transmission case is mainly related to the meshing frequency of the gear pair. It provides the basis for the development and optimization of the transmission assembly in the early stage and final stage.
引文
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[6]潘公宇,梁艳春.混合动力变速箱NVH性能优化分析[D].江苏:江苏大学,2015:15-32.
[2]张在强.电动车辆减速器壳体辐射噪声研究[D].秦皇岛:燕山大学,2016:25-40.
[3]朱华,陈安宇,范正伟.齿轮变速器箱体降噪优化设计[J].小型内燃机与车辆技术,2014(5):66-68.
[4]杨为,邱清盈,胡建军.机械结构的理论模态分析方法[J].重庆大学学报(自然科学版),2004,27(6):1-4.
[5]贺李平,肖介平,龙凯.ANSYS14.5与Hypermesh 12.0联合仿真有限元分析[M].北京:机械工业出版社,2014:101-102.
[6]潘公宇,梁艳春.混合动力变速箱NVH性能优化分析[D].江苏:江苏大学,2015:15-32.