多工况下新能源汽车二级减速器传动系统的动态特性分析  

Dynamic analysis of double-stage reducer transmission system of new energy vehicle under multi-conditions

作　　者：汤兆平[1] 涂松 王曼宇 赵旻 汪敏 梅自元 TANG Zhaoping;TU Song;WANG Manyu;ZHAO Min;WANG Min;MEI Ziyuan(School of Information Engineering,East China Jiaotong University,Nanchang 330013,China;CRRC Qishuyan Institute Co.,Ltd.,Changzhou 213025,China;China Mobile Communications Group Co.,Ltd.,Zhuzhou Branch,Zhuzhou 412000,China;Testing Engineering Manager,GETRAG(Jiangxi)Transmission Co.,Ltd.,Nanchang 330052,China)

机构地区：[1]华东交通大学信息工程学院,南昌330013 [2]中车戚墅堰机车车辆工艺研究所有限公司,江苏常州213025 [3]中国移动通信集团有限公司株洲分公司,湖南株洲412000 [4]格特拉克(江西)传动系统有限公司,南昌330052

出　　处：《重庆理工大学学报（自然科学）》2022年第8期75-85,共11页Journal of Chongqing University of Technology：Natural Science

基　　金：国家自然科学基金项目(51765015)。

摘　　要：减速器传动系统作为新能源汽车的核心部件,承担着传递动力的重要任务。实际运行过程中,因传动系统本身结构、制造和装配误差、齿轮啮合冲击等原因,减速器传动系统成为汽车室内噪声的主要来源。以新能源汽车二级减速器的传动系统作为研究对象,利用Romax软件构建减速器传动系统的三维模型。基于启动、加速、等速、减速、停车5种典型工况,在Romax软件中对其依次进行静力学分析、动力学分析,导出齿轮最大接触和弯曲应力、单位长度载荷分布、传动误差等性能数据,然后将传动误差分析得到的结果设定到NVH分析中,得到系统的振动加速度。对比研究分析不同工况条件下的数据输出结果,分析齿轮啮合力和齿轮振动的关系,为齿轮修形的减振降噪提供对比数据。As the core component of the new energy vehicle, the reducer transmission system undertakes the important task of transmitting power. In the actual operation process, due to the transmission system structure, manufacturing and assembly errors, gear meshing impact and other reasons, the reducer transmission system becomes the main source of vehicle interior noise. Taking the transmission system of the double-stage reducer of a new energy vehicle as the research object, a three-dimensional model of the reducer transmission system is constructed by using Romax software. Based on the five typical working conditions of start-up, acceleration, constant speed, deceleration and stop, the static analysis and dynamic analysis are carried out successively in Romax software, and the performance data such as the maximum contact and bending stress of gear, load distribution per unit length, transmission error and so on are derived. Then the results of transmission error analysis are set into NVH analysis, and the vibration acceleration of the system is obtained. The data output results are compared and analyzed under different working conditions, the relationship between gear meshing force and gear vibration is analyzed, so as to provide comparative data for gear modification to reduce vibration and noise.

关 键 词：新能源汽车 多工况 动力学分析 NVH分析 Romax 

分 类 号：TH132.41[机械工程—机械制造及自动化]