【摘要】 研究了行星齿轮功率分流混合动力传动系统的扭转振动特性分析方法,通过扭转减振器的刚度匹配实现系统共振转速的优化。针对混合动力系统可能出现的多种工作状态,建立传动系统的参数化振动模型。研究了动力传动系统转速比及减振器刚度对系统共振转速的影响。计算结果表明,只有在特定转速比区间发动机才会引起传动系统较高的共振转速,通过降低减振器扭转刚度可以降低系统共振转速,使其偏移发动机常用转速范围。更多还原

【Abstract】 Torsional vibration analysis method for the power split hybrid system with planetary gear was studied.Resonant speed of the powertrain was optimized through the stiffness matching of torsional damper.Parametric vibration model was built to investigate the influence of gear ratio and damper stiffness on powertrain resonance.Analysis results indicated that there was a high resonant speed zone when the ratio was controlled around some special value.The resonant speed could be reduced out of the engine working speed range with lower stiffness torsional damper.更多还原