ANALYSIS OF VIBRATION FREQUENCY RESPONCE CHARACTERISTIC METHOD STUDY

ZONG BangFei; CHU ChaoMei; HUANG YongHui; TAN Hui

doi:10.16579/j.issn.1001.9669.2019.01.039

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ANALYSIS OF VIBRATION FREQUENCY RESPONCE CHARACTERISTIC METHOD STUDY

更新时间：2022-09-22

- ANALYSIS OF VIBRATION FREQUENCY RESPONCE CHARACTERISTIC METHOD STUDY
- Journal of Mechanical Strength Vol. 41, Issue 1, Pages: 244-249(2019)
- 作者机构：
  
  1. 上海理工大学机械工程学院
- 作者简介：
- 基金信息：
- DOI：10.16579/j.issn.1001.9669.2019.01.039
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ZONG BangFei, CHU ChaoMei, HUANG YongHui, et al. ANALYSIS OF VIBRATION FREQUENCY RESPONCE CHARACTERISTIC METHOD STUDY. [J]. 41(1):244-249(2019)
DOI：

ZONG BangFei, CHU ChaoMei, HUANG YongHui, et al. ANALYSIS OF VIBRATION FREQUENCY RESPONCE CHARACTERISTIC METHOD STUDY. [J]. 41(1):244-249(2019) DOI： 10.16579/j.issn.1001.9669.2019.01.039.

摘要

针对汽车变速器壳体局部断裂失效的问题,提出一种利用动刚度特性分析变速器壳体局部変形特性的方法,并对危险频率下的壳体结构进行改进分析。以一种前橫置变速器壳体为研究对象,运用Hyperworks软件建立有限元模型,对目标壳体输入轴轴承孔关键点处施加激励,采用振动传递函数的方法,对振动强烈的变速器后壳体进行振动频率响应特性分析,获得变速器后壳体悬置点加速度频响曲线和动刚度频响曲线。进而对变速器后壳体结构进行改进,并对改进后结构进行软件验证分析。研究表明,动刚度频响曲线评价方法是一种能直观准确反应壳体结构与变形的关系,能够准确找到需要改进的壳体频率区间及部位的有效方法,并且改进的壳体结构可以有效改善壳体结构的振动特性。

Abstract

Aiming at the automobile gearbox shell local deformation failure problem,an evaluation method based on the dynamic stiffness of the critical point of the target shell is proposed. In a front transverse gearbox as the research object,using Hyperworks software to establish the finite element model of shaft hole in the key points of the incentive target the input method of transfer function,the vibration characteristics,vibration frequency analysis of vibration response of transmission after strong shell,obtained after the transmission housing mounting point acceleration frequency response curve and the frequency response curve of dynamic stiffness. Furthermore,the structure of the rear shell of the transmission is improved,and the improved structure is verified by software. Research shows that the dynamic stiffness of the frequency response curve evaluation method is an intuitive and accurate relationship with the deformation response of shell structure,can accurately find the effective method to frequency range and location of improved housing, and the housing structure improvement can effectively improve the vibration characteristics of the shell structure.

关键词

变速器壳体振动传递函数振动特性动刚度结构改进

Keywords

Transmission housingVibration transfer functionVibration characteristicDynamic stiffnessStructure improvement

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