航空驱动机构轻量化设计与仿真分析

合理、轻量化的航空驱动机构设计可以在很大程度上提高航空驱动机构行程角度控制的准确性、耐久性、扭矩/质量比及电磁兼容性,降低输出轴晃动间隙。针对目前国内现有飞机着陆灯用航空驱动机构,提出一种轻量化航空驱动机构的设计方案,该方案采用无刷直流电动机驱动,通过行星齿轮、平行轴直齿轮、蜗杆副等组合形式减速,利用高精度非接触角位移传感器反馈位置信号;建立三维数学模型对行星齿轮等传动件进行动力学仿真分析,对壳体、齿轮盖等结构件进行有限元仿真计算。结果表明：轻量化航空驱动机构设计方案可满足轻量化、大扭矩/质量比等相关技术指标要求;驱动机构关键传动件与结构件的设计参数及强度也满足要求,设计方案合理可行。

Lightweight design and simulation analysis of aviation driving mechanism

Reasonable and lightweight design of aviation driving mechanism can greatly improve the accuracy of travel angle control, durability, torque / mass ratio and electromagnetic compatibility of aviation driving mechanism, and reduce the output shaft sloshing clearance. Based on the current domestic existing aircraft landing lights by air driving mechanism, put forward a king of lightweight aircraft design drive mechanism, the scheme adopts brushless dc motor drive, through the planetary gear, parallel shaft spur gear and worm pair combinations such as slow, using high precision non-contact displacement sensor position feedback signal, and construct a three dimensional mathematical model of mathematical mode of mathematical simulation calculation. The planetary gear and other transmission parts is simulated by KISSsoft. UG10.0 3D mathematical model was established for structure such as shell and gear cover, and advanced simulation ANALYSIS was carried out by using the "FEM and simulation" function module of UG10.0.Through dynamic calculation simulation and advanced simulation analysis, the results show that the design scheme of lightweight aviation drive mechanism can meet the requirements of lightweight, high torque/mass ratio and other relevant technical indicators. The design parameters and strength of the key transmission parts and structural parts of the driving mechanism meet the requirements, and the design scheme is reasonable and feasible.