基于ADAMS的行星轮系动力学仿真

Dynamics Simulation of Planetary Gear Train based on ADAMS

由于行星轮系的结构复杂,难以利用理论方法研究行星轮系的动力学行为,寻找一种简便、可靠的动力学行为研究方法来研究行星轮系的振动特性、可靠性等具有重要的意义。在对行星轮系进行三维参数化建模的基础上,利用机械系统动力学软件(ADAMS)建立了行星轮系的动力学模型,并对行星轮系的动力学行为进行了模拟。结果表明,仿真和理论结果的误差为0.2%,证明所建动力学模型是可靠、准确的;由于轮齿啮合的周期性致使轮系振动也具有周期性;行星轮轮齿间接触力满足力平衡关系,与理论分析相一致。研究结果对行星轮系振动特性、可靠性以及寿命等研究具有一定的指导意义。

Due to the complex structure of the planetary gear train, it is difficult to take advantage of the theoret- ical methods to study the dynamical behavior of planetary gear train. So it is significant to find a simple, reliable dynamics behavior research method to study the vibration characteristics and reliability of the planetary gear train. By using ADAMS, the dynamics model of planetary gear train is established and the dynamical behavior is simulated based on the three - dimensional parametric modeling. The results show that, the error of simulation and theory results is 0.2 %, which proves that the dynamics model is reliable and accurate. Because of the periodicity of the gear meshing, the gear train vibration also has periodicity. The contact forces between the planetary gear teeth meet the force - bal- ance relationship and it is consistent with the theoretical analysis. The study results have certain guiding significance for the vibration characteristics, reliability and life research of the planetary gear train.