多档位行星变速传动系统动力学参数优化修改

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振动与冲击 ›› 2018, Vol. 37 ›› Issue (4) : 67-74.

论文

窦作成1，李以农1，杜明刚2，杨阳2，赵腊月2

作者信息 +

Dynamic Optimization and Modification for the Parameters of Multi-Speed Planetary Transmission System

DOU Zuozheng1, LI Yinong1, DU Minggang2, YANG Yang2, ZHAO Layue2

Author information +

文章历史 +

摘要

针对多档位行星变速传动系统因为参数选取不当致使多个档位存在扭转共振的问题，提出以系统固有频率对参数相对灵敏度为约束条件，采用相对初始参数变化率最小的动态优化目标函数和动态约束边界的多步遗传优化算法，对系统进行了多档位动力学参数优化修改。对采用不同优化步长情况下以基于相对初始参数最优和基于单步最优为目标函数进行了对比研究，并对行星传动系统固有频率对参数灵敏度用于传动系统多档位和单个档位参数优化修改的特点进行了分析。结果表明：以相对初始参数最优的多步遗传优化算法可以获得相比以单步最优的多步遗传优化算法更好的优化结果；行星变速传动系统单个档位固有频率对参数的灵敏度不能直接作为多个档位同时进行参数优化修改的参考。参数优化修改后系统所有档位在工作转速范围内都不会发生扭振共振，可为多档位行星变速传动系统设计提供一定的指导。

Abstract

To prevent torsional resonance of multi-gears of multi-speed planetary transmission system which because of improper choose of the parameters, dynamic optimization and modification for the parameters of the system was conducted by using the multi-step genetic algorithm which adopt relative sensitivity of natural frequencies to parameters of the system to be the constraint conditions, and to minimize the change rate of parameters relative to its initial value was taken as the dynamic objective function and dynamic constraint boundary. Comparative study of taking the change rate of parameters relative to its initial value to be optimal and taking every step to be optimal when different step size was taken into consideration had been done. And the characteristic of natural frequencies to parameters of planetary transmission system apply to multi-gears and single-gear was analyzed. The result indicate that better optimization result can be got in the multi-step genetic algorithm when using the change rate of parameters relative to its initial value to be optimal compare with using every step to be optimal; The natural frequencies to parameters of single-gear of planetary transmission system can not be used for guidance of multi-gears system directly. Resonance will not produce at the range of working speed of the system after optimization and modification of parameters, and a guidance for the design of the planetary transmission can be provided by this paper.

导出引用

窦作成1，李以农1，杜明刚2，杨阳2，赵腊月2. 多档位行星变速传动系统动力学参数优化修改[J]. 振动与冲击, 2018, 37(4): 67-74

DOU Zuozheng1, LI Yinong1, DU Minggang2, YANG Yang2, ZHAO Layue2. Dynamic Optimization and Modification for the Parameters of Multi-Speed Planetary Transmission System[J]. Journal of Vibration and Shock, 2018, 37(4): 67-74

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