基于接触有限元的跨接齿轮啮合刚度计算及激励特性分析  

Analysis of Time-varying Meshing Stiffness and Dynamic Excitation Characteristics of Cross Connection Gears Using Contact Finite Element Method

作　　者：雷智洋 陈彦齐 夏极 黄志伟[1] 黄修长[2] LEI Zhiyang;CHEN Yanqi;XIA Ji;HUANG Zhiwei;HUANG Xiuchang(National Key Laboratory of Ship Vibration and Noise,China Ship Development and Design Center,Wuhan 430064,China;Institute of Vibration,Shock and Noise,State Key Laboratory of Mechanical System and Vibration,Ministry of Education,Shanghai Jiaotong University,Shanghai 200240,China;Military Representative Bureau of Naval Armament Department inWuhan,Wuhan 430064,China)

机构地区：[1]中国舰船研究设计中心船舶振动噪声重点实验室,武汉430064 [2]上海交通大学机械系统与振动国家重点实验室振动冲击噪声研究所,上海200240 [3]海军装备部驻武汉地区军事代表局,武汉430064

出　　处：《噪声与振动控制》2023年第6期69-73,共5页Noise and Vibration Control

基　　金：国家重点实验室开放基金资助项目(MSVZD202001)。

摘　　要：针对齿轮内部激励及齿轮副激励力特性问题,建立跨接齿轮三维有限元模型,基于接触有限元方法对跨接齿轮开展时变啮合刚度的计算;在此基础上建立跨接齿轮-轴-轴承模型,基于有限元软件隐式动力学计算方法,进行动态响应及激励力的计算。结果表明,采用接触有限元方法能够得到跨接齿轮的考虑初始啮合相位的时变啮合刚度,动态激励力以啮合频率为主,伴随有以转动频率为调制频率的边频带。Aiming at the internal excitation of the gear and the excitation force characteristics of the gear pair,threedimensional finite element models of the cross connection gear(CCG)are established,and the time-varying meshing stiffness of the helical gear pair and the CCG is calculated by means of the contact finite element method.On this basis,the CCG-shaft-bearing model are established.Based on the implicit dynamic calculation method in the finite element software,the dynamic responses and excitation forces are calculated.The results show that using the contact finite element method can obtain the time-varying meshing stiffness of the CCG considering the initial meshing phase.The dynamic excitation force is dominated by the meshing frequency,accompanied by the sideband with the rotation frequency as the modulation frequency.

关 键 词：振动与波 齿轮激励 啮合时变刚度 跨接齿轮箱 

分 类 号：TH132[机械工程—机械制造及自动化] O242.21[理学—计算数学]