Dynamic Characteristics Analysis of High Contact Ratio Planetary Gear Transmission
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摘要: 针对行星齿轮传动系统,采用集中质量法建立太阳轮浮动的动力学模型,考虑时变啮合刚度和综合啮合误差的影响,推导得出系统的动力学微分方程。采用变步长Runge-Kutta数值积分方法求解动力学微分方程。对比研究了高重合度行星齿轮传动系统和普通行星齿轮传动系统的动态时域响应,动载特性和均载特性。分析结果表明:高重合度行星齿轮传动振动幅值较低,动载荷较小,均载特性较好,因此传动更加平稳,噪声减小,传动性能更好。Abstract: By using lumped-mass method, the dynamic model of planetary gear transmission with floating sun-gear was established; the time-variant stiffness and meshing error were considered in the model. The motion differential equation of the model was presented and solved by Runge-Kutta numerical integration method with variable steps. Dynamic time-domain responses, dynamic loads and load sharing characteristics of the high contact ratio planetary gear transmission and general planetary gear transmission were both investigated for comparison. The results indica-ted that the high contact ratio planetary gear transmission had lower vibration amplitude, smaller dynamic load and dynamic load-sharing coefficient. So the high contact ratio planetary gear drive had better performance with smoot-her transmission, lower noise, and its load distribution is more uniform.
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Key words:
- high contact ratio /
- planetary gear transmission /
- dynamic characteristics
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[1] Kahraman A.Load sharing characteristics of planetary transmission[J].Mechanism and Machine Theory,1994,29(8):1151～1165 [2] 鲍和云,朱如鹏,靳广虎.基于增量谐波平衡法的星型齿轮传动非线性动力学分析[J].机械科学与技术,2008,27(8):1038～1042 [3] 陆俊华,朱如鹏,靳广虎.行星传动动态均载特性分析[J].机械工程学报,2009,45(5):85～90 [4] 鲍和云.两级星型齿轮传动系统分流特性及动力学研究[D].南京:南京航空航天大学,2006 [5] 孙涛,沈允文,孙智民等.行星齿轮传动非线性动力学模型与方程[J].机械工程学报,2002,38(3):6～10 [6] 李斌.行星齿轮传动系统均载分析方法的研究[D].南京:南京航空航天大学,2005,6 [7] Li S T.Effect of addendum on contact strength,bending strengthand basic performance parameters of a pair of spur gears[J].Mechanism and Machine Theory,2008,43:1557～1584 [8] 方宗德,蒋孝煜,宋镜瀛.大重合度齿轮的性能研究[J].齿轮,1987,11(1):27～32 -
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