
2013年第3期
文章编号:10094687(2013)03000605
车辆与动力技术 Vehicle & Power Technology
轮齿啮合综合刚度的计算方法研究
刘越,刘大,张祖智,戈红霞(中国北方车辆研究所车辆传动重点实验室,北京100072)
总第131期
摘要:在齿轮系统的动力学分析中,轮齿暗合刚度是轮齿接触分析、变形分析和系统刚度计算的关键影响因素之一,以直齿圆柱齿轮为例,分别运用3种轮齿刚度的计算方法:国家标准计算、数值计算和有限元法,进行轮齿啮合刚度的计算,结果表明:数值计算方法较之国标计算方法更为准确和实用,且可以得到轮齿刚度的变化曲线,
关键调:轮齿嗒合;刚度计算;国家标准计算;数值计算;有限元法
中图分类号:TH132.147;TP391.77
文献标识码:A
ResearchonMethods of GearMeshingStiffness
LIU Yue,LIU Da-kun,ZHANG Zu-zhi,
GEHong-xia
(Science and Technology on Vehicle Transmission Laboratory, China North Vehicle
Research Institute,Beijing 100072, China)
Abstract:The meshing stffness of gears is one of the keys in the analysis of dynamic in gear system including tooth contact analysis, tooth defomation and the calculation of system stiffness, Three methods of tooth stiffness, which are calculation by national standard, numerical analysis and finite calculation, are discussed in this paper. The programme is developed by the method of numerical analysis, The tooth stiffness is calculated by three methods, and an example illuminates that the mothed of numerical analysis, which obtains the curve of tooth stiffness, is most veracious and applied Through contrasting the result of three methods, it is proved that the programme is veracious and feasible, which is also basis for tooth modification
Key words: tooth stffness; stiffness calculation; national standard; numerical analysis; finite element
齿轮系统的动态激励分为内部激励和外部激励两大类,其中内部激励包括刚度激励、误差激励和啮合冲击激励“"},刚度激励表现为因轮齿啮合位置不同、啮合齿对数变化导致啮合综合刚度随时间周期变化,从而引起齿轮轮齿啮合力周期变化:主要与齿轮副的设计参数(如模数、重合度、齿廓修形参数,等等)有关,刚度激励是造成齿轮振动的主要因素之一,轮齿啮合综合刚度的计算,是齿轮系统扭振计算、系统变形计算、啮合误差计算
收稿日期:20130513
作者简介:刘越(1987-),男,硕士,主要研究方向为传动技术万方数据
以及轮齿修形的基础。通过查阅资料,目前求解齿轮的啮合综合刚度主要有3种方法:1)GB/T 3480-1997提供的计算方法(2);2)数值计算方法【1,3];3)有限元法。
GB/T3480-1997提供的计算方法轮齿的啮合刚度是动载系数K,的重要影响因
素,GB/T3480-1997作为齿轮强度校核计算的依