某直升机减速器动力学仿真与损伤力学疲劳寿命分析  

DYNAMICS SIMULATION AND DAMAGE MECHANICAL FATIGUE LIFE ANALYSIS OF GEAR REDUCER ON HELICOPTER

作　　者：张庶[1] 胡伟平[1] 扶碧波[2] 孟庆春[1] 

机构地区：[1]北京航空航天大学航空科学与工程学院,北京100191 [2]中国航空动力机械研究所,株洲412002

出　　处：《机械强度》2014年第6期949-954,共6页Journal of Mechanical Strength

基　　金：国家自然科学基金项目(11002010)资助~~

摘　　要：以某型直升机主减速器为分析对象,使用UG建立模型,在Adams中对啮合齿轮采用3D接触,并对该模型进行动力学仿真。完成仿真后,获取内部各级传动齿轮的运动参数变化曲线。将啮合力变化曲线提取出来作为载荷谱,并结合材料的S-N曲线,使用损伤力学的理论,在Ansys中对该减速器中第二级直齿轮主动轮进行疲劳寿命分析。The model of gear reducer on an aircraft was build up by UG as the object of study. 3D contact was established on meshing gears, and dynamics simulation was carried out in ADAMS. Kinetic parameter curves of each gear can be obtained after the simulation was finished. The curve of contact force was extracted as load spectrum. Combined with S-N curve, fatigue life analysis was carried out for the secondary driving spur gear in ANSYS based on the damage mechanical theory.

关 键 词：减速器 动力学仿真 损伤力学 疲劳寿命 

分 类 号：TH132.46[机械工程—机械制造及自动化] O346.2[理学—固体力学]