修枝机齿轮箱的振动特性仿真分析  

Simulation Analysis of Vibration Characteristics of Trunking Gear Box

作　　者：潘衡[1,2] 陈希良[2] 陆春月[1] 肖江剑[2] 程蓓 

机构地区：[1]中北大学机械与动力工程学院,太原030051 [2]中国科学院宁波材料技术与工程研究所,宁波315000 [3]宁波创跃园林工具有限公司,宁波315000

出　　处：《科学技术与工程》2017年第23期132-136,共5页Science Technology and Engineering

基　　金：宁波市重大科技攻关项目(2015B11031);国家高技术研究发展计划"863"计划(2015AA016403)资助

摘　　要：针对修枝机齿轮箱在运行过程中出现的振动和异响问题,基于多体动力学理论,利用Adams软件建立齿轮箱的动力学模型,结合快速傅里叶变换理论计算得到齿轮箱齿轮的啮合动态力。利用ANSYS Workbench软件建立齿轮箱有限元模型,完成齿轮箱的约束模态分析。根据数据处理后的轴承处频域激励载荷,计算齿轮箱体表面振动的动态响应。仿真结果表明,齿轮箱的振动噪声在齿轮箱固有频率与齿轮啮合激励频率接近时达到最大值,为以后的齿轮箱体辐射噪声分析以及结构优化设计提供了理论依据。Based on the theory of multi-body dynamics,the kinetic model of the gear box is established by Adams software,and the meshing of the gear box gear is calculated by combining the fast Fourier transform theory.Based on the multi-body dynamics theory,Dynamic force. The finite element model of gearbox was established by using Hypermesh software,and ANSYS Workbench software was introduced to complete the constraint modal analysis of gearbox. According to the data processing after the bearing frequency domain excitation load,calculate the dynamic response of the gear box surface vibration. The simulation results show that the vibration noise of the gearbox reaches the maximum when the natural frequency of the gearbox is close to the gear meshing excitation frequency,which provides the theoretical basis for the subsequent radiation noise analysis and structural optimization design of the gearbox.

关 键 词：齿轮箱 振动 模态分析 傅里叶变换 谐响应分析 

分 类 号：S776.274[农业科学—森林工程]