摘要
研究了航空发动机减速器人字齿轮分扭传动系统中轴角(分扭传动系统各齿轮几何中心所在位置形成的角度)对系统动态特性的影响。根据邻接条件、同心条件和安装条件等求解系统的轴角,基于有限元节点建模方法建立包含轴、轴承、齿轮转子和齿轮副啮合过程的动力学模型;基于转子动力学理论计算系统的动态响应,求解不同轴角下系统的动载系数和动态传动误差,分析轴角对分扭传动系统动态特性的影响。研究表明,轴角对系统的动态特性有较大影响,在轴角不同时,系统动态响应的频域分布有较大差异,且在不同转速下,轴角对各分支动载系数及动态响应影响程度不同。
The effects of shaft angles, which define the locations of gear centers, on dynamic characteristics of a split torque transmission system with herringbone gears are investigated. Firstly, the shaft angles are derived based on adjacency relationship, concentric relationship, geometrical conditions and installation conditions. Then, the dynamics model of the motion of the system which consists of shafts, bearings, gear rotors and the process of gear mesh is established based on the finite element node modeling method. Finally, the dynamic response of the system is calculated based on rotor dynamics theory, and the dynamic load coefficients and dynamic transmission error are obtained under different shaft angles so as to indicate the effects of shaft angles on the dynamic characteristics. The research shows that shaft angles have a great influence on the dynamic characteristics of the system, when the shaft angle is different, the frequency domain distribution of system dynamic response is very different, at different speeds, the shaft angle has different influence on the dynamic load coefficient and dynamic response.
出处
《机械传动》
CSCD
北大核心
2017年第8期94-99,共6页
Journal of Mechanical Transmission
关键词
分扭传动
人字齿轮
轴角
动载系数
Split torque transmission system Herringbone gear Shaft angle Dynamic load coefficient
