啮合错位对高速齿轮传动振动响应的影响  

A study on the influence of meshing misalignment on the vibration response of high-speed gear transmission

作　　者：李良祥 魏静[1] 张爱强[1] 倪德 钟团结 LI Liangxiang;WEI Jing;ZHANG Aiqiang;NI De;ZHONG Tuanjie(State Key Laboratory of Mechanical Transmissions,Chongqing University,Chongqing 400044,China;China Aviation Development Hu'nan Power Machinery Research Institute,Zhuzhou 412000,China)

机构地区：[1]重庆大学机械传动国家重点实验室,重庆400044 [2]中国航发湖南动力机械研究所,湖南株洲412000

出　　处：《哈尔滨工程大学学报》2023年第2期268-275,共8页Journal of Harbin Engineering University

基　　金：国家重点研发计划(2020YFB2008101);国家自然科学基金项目(51775058)。

摘　　要：齿轮传动过程中由于装配误差及受载变形等容易产生啮合错位,非正常啮合状态将会影响系统动态特性,特别是对于航空高速齿轮传动,微小的错位可能也会导致系统动态性能急剧下降。本文基于多体动力学建模理论及方法,对轴系及齿轮进行超单元缩聚,根据轴系之间运动、载荷耦合关系,在各缩聚点施加载荷及约束,最终建立全柔体单级航空直齿轮传动系统动力学模型,研究了齿轮啮合角度错位对系统动态特性的影响。研究结果表明:齿轮啮合错位对系统动态性能影响显著,齿轮副啮合力、接触应力及传动误差峰峰值随错位角度增大呈增大趋势,错位后系统振动响应及动应力明显增大。Meshing misalignment is easily produced in the process of gear transmission because of assembly error and deformation under load.An abnormal meshing state affects the dynamic characteristics of the system.In particular,for the aviation high-speed gear transmission,a small misalignment may also lead to a sharp decline in the system’s dynamic performance.In this study,on the basis of the theory and method of multibody dynamics modeling,supercell polycondensation is performed on the shafts and gears.According to the coupling relationship between the motion and load of the shafting system,loads and constraints are applied at each condensation node,and finally,the dynamics model of an all-flexible single-stage aviation spur gear transmission system is established to study the influence of gear meshing angle misalignment on the dynamic system characteristics.The results show that a meshing misalignment considerably affects the dynamic performance of the system,and the meshing force,contact stress,and peak value of the transmission error peak of the gears increase with the misalignment angle.The vibration response and dynamic stress of the system increase substantially after the misalignment.

关 键 词：航空传动 高速齿轮 多柔体系统 缩聚建模 啮合错位 动态响应 振动特性 动应力 

分 类 号：V231[航空宇航科学与技术—航空宇航推进理论与工程] TH113.1[机械工程—机械设计及理论]