准双曲面齿轮动态啮合性能的有限元分析研究  

Finite element analysis for dynamic meshing of a pair of hypoid gears

作　　者：唐进元[1] 彭方进[1] 

机构地区：[1]现代复杂装备设计与极端制造教育部重点实验室(中南大学)中南大学机电工程学院,长沙410083

出　　处：《振动与冲击》2011年第7期101-106,共6页Journal of Vibration and Shock

基　　金：国家重点基础研究发展计划(973计划2005CB724100);国家自然科学基金(50875263)

摘　　要：研究准双曲面齿轮动态啮合有限元分析模型的构建方法,建立了合理的有限元模型。基于接触动力学的基本理论和显式有限元分析方法,对准双曲面齿轮的动态啮合性能进行了研究,得到啮合接触冲击特性、齿面接触区域、齿面接触应力及齿根弯曲应力等在轮齿动态啮合过程中的变化规律。以转速和负载两个典型的工作条件为变量,建立对比分析模型,研究转速和负载对准双曲面齿轮动态啮合性能的影响。转速对准双曲面齿轮动态啮合性能影响显著,而负载对准双面齿轮的动态啮合性能影响则跟转速有关,随着转速的增大,相同的负载变化对动态啮合性能的影响逐渐减弱。The method to build a finite element model for dynamic meshing analysis of a pair of hypoid gears was discussed.A reasonable finite element model was introduced.Based on the theory of nonlinear dynamics and finite element explicit algorithm,the characteristics of the hypoid gears in dynamic meshing were studied.The laws of gear motion,the contact area,the contact stress and the tooth root bending stress in dynamic meshing of hypoid gears were obtained.The two typical working factors： votating speed and load were taken as variables.The influences of rotating speed and load on the dynamic meshing characteristics were discussed.The contrast study showed that rotational speed has an obvious influence on the characteristics of the hypoid gears in dynamic meshing,and the influence of load is related to the rotational speed;as the rotational speed increases,the influence of the same load change on the dynamic meshing characteristics gradually decreases.

关 键 词：准双曲面齿轮 动态啮合 非线性动力分析 有限元方法 

分 类 号：TH132[机械工程—机械制造及自动化]