考虑刚度影响的双输入转矩分流式齿轮系统均载特性

为了对转矩分流齿轮系统均载特性进行更加深入的研究,建立系统非线性动力学模型,采用数值仿真方法计算系统的均载系数,分析联动轴扭转刚度、输出轴支撑刚度、输入转速以及轴位角对均载系数的影响规律,并对齿轮系统进行实验研究。研究结果表明:输出端的均载系数大于输入端的均载系数,高压输入端的均载系数大于低压输入端的均载系数；均载系数随联动轴扭转刚度的增加而增加,随支撑刚度的增加先减小后平缓；在不同转速下均载系数呈现波动变化,在4 100 ~ 4 400 r/min输入转速区间出现了谐振峰；轴位角a₂的值会影响均载系数随a₁变化的规律,尽可能减小轴位角可以提高系统的均载性能。通过实验测试验证了本文分析模型的正确性。

Load sharing characteristics of dual-input torque-spilt gear system considering stiffness

In order to carry out a more in-depth study on the load sharing characteristics of the torque-split gear system, a nonlinear dynamic model was established. The numerical simulation method was used to calculate the load sharing coefficient of the system. The influences of the torsional stiffness of the linkage shaft, the output shaft support stiffness, the input speed and the axial angle on the load sharing coefficient were studied. Experiment of gear system was carried out, and the research results show that:the load sharing coefficient of the output end is larger than the one of the input end, and the load sharing coefficient of the high pressure input end is larger than the one of the low pressure input end; the load sharing coefficient grows with the increase of the torsional stiffness of the linkage axis; with the increase of the support stiffness, the load sharing coefficient increases first and then reduces; the load sharing coefficient shows fluctuations with the growth of input speed, and the resonance peak appears in the range from 4 100 r/min to 4 400 r/min; the value of shaft position angle a₂ can affect the change law of the load sharing coefficient with a₁, and minimizing the shaft position angle can improve the load sharing performance of the system. Experimental results verify the correctness of the model of marine gear system.