吉林大学学报(工学版) ›› 2017, Vol. 47 ›› Issue (2): 344-352.doi: 10.13229/j.cnki.jdxbgxb201702002

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汽车驱动桥准双曲面齿轮齿根弯曲应力预测与试验

刘程1, 史文库1, 陈志勇1, 何伟1, 荣如松2, 宋怀兰2   

  1. 1.吉林大学 汽车仿真与控制国家重点试验室, 长春 130022;
    2.南京依维柯汽车有限公司 车桥分公司,南京210028
  • 收稿日期:2016-03-22 出版日期:2017-03-20 发布日期:2017-03-20
  • 通讯作者: 史文库(1960-),男,教授,博士生导师.研究方向:汽车整车NVH及平顺分析与优化.E-mail:shiwk@jlu.edu.cn
  • 作者简介:刘程(1985-),男,博士研究生.研究方向:汽车传动系统NVH分析与优化.E-mail:liucheng14@mails.jlu.edu.cn
  • 基金资助:
    国家自然科学基金项目(51205158); 中国博士后科学基金项目(2013M541294).

Experiment on tooth root bending stress of driving axle hypoid gear of automobile

LIU Cheng1, SHI Wen-ku1, CHEN Zhi-yong1, HE Wei1, RONG Ru-song2, SONG Huai-lan2   

  1. 1.State Key Laboratory of Automotive Simulation and Control, Jilin University, Changchun 130022, China;
    2. Axle Branch of Naveco Co., Ltd.,Nanjing 210028,China
  • Received:2016-03-22 Online:2017-03-20 Published:2017-03-20

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摘要： 有限元法是预测汽车驱动桥准双曲面齿轮齿根弯曲应力的重要方法,但单独准双曲面齿轮有限元模型约束条件难以确定,为此本文建立了基于整体驱动模型准双曲面齿轮齿根弯曲应力有限元分析模型,并对齿根应力仿真结果与台架试验进行了对比。选用ABAQUS/Standard建立了驱动桥准双曲面齿轮静态啮合模型,仿真结果表明:本文研究的整体驱动桥准双曲面齿轮在啮合过程中小齿轮齿根弯曲应力在靠近大端出现最大值,齿根部位先受到压应力,再受到拉应力;大齿轮齿根弯曲应力在靠近小端出现最大值,齿根部位先受到拉应力,再受到压应力。最后,搭建了驱动桥静扭试验台,并对驱动桥大齿轮齿根弯曲应力进行测量,将台架试验与仿真结果进行了对比分析,对比结果表明,所建立的有限元模型准确可靠,可将此建模方法应用于类似的齿轮齿根弯曲应力分析。

关键词: 车辆工程, 驱动桥, 准双曲面齿轮, 齿根弯曲应力, 有限元法

Abstract: FEM is an important method to predict the tooth root bending stress of driving axle hypoid gear of automobile. However, it is difficult to accurately determine the constraint condition of the FEM model. To solve this problem, a finite element analysis method of hypoid gear tooth root bending stress based on the whole drive axle model is established. Simulation results of obtained from the proposed method are compared with that of rig test. ABAQUS/Standard software is used to establish the static state engagement model of hypoid gears of the driving axle. Results show that, while hypoid gears of the driving axle are meshing, the maximum bending stress of the pinion appears near the heal; the tooth roots bear the comprehensive stress first, then shift to tensile stress. On the contrary, the maximum bending stress of the big gear appears near the toe; the tooth roots bear the tensile stress first, then shift to comprehensive stress. Finally, the gear tooth root bending stress was measured on a driving axle static torsional test rig. Comparison of the test and simulation results demonstrates that the proposed FEM model is reliable and such modeling method can be applied to similar analysis of gear tooth root bending stress.

Key words: vehicle engineering, drive axle, hypoid gear, root bending stress, finite element method

中图分类号: 

  • U463
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