机翼弯曲模拟系统的建模与仿真研究

Modeling and Simulation of Wing Bending Simulation System

某型飞机在飞行过程中,机翼将产生最大可达3米的变形,该变形将严重影响安装在飞机机翼上钢索传动装置的操控性能,同时考虑操控性能在真实飞行过程中的成本、难度、风险问题,构建了地面机翼弯曲模拟系统。首先,构建了由16套机构组成的全机翼半物理仿真模型,各机构均安装有一套位移伺服控制系统和一套角度伺服控制系统。然后对系统的角度控制及位移控制进行了建模、仿真研究,提出了有效的前馈和模糊控制相结合的控制策略。最后搭建了实验验证系统并进行了验证。结果表明:该系统设计合理,实用性强,满足钢索在机翼弯曲变形下的操控性能测试。

In the flight of a certain aircraft,the maximum deformation of the wing will be up to 3 meters,which will seriously affect the handling performance of the steel cable transmission device installed on the aircraft wing.Considering the cost,difficulty and risk of handling performance in the real flight,a ground wing bending simulation system is constructed.Firstly,a semi-physical simulation model for the whole wing is constructed,which consists of 16 sets of mechanisms.Each mechanism is equipped with a set of displacement servo control system and an angle servo control system.Then,the angle control and displacement control of the wing bending simulation system are modeled and simulated,and an effective control strategy by combining feedforward and fuzzy control is put forward.Finally,an experimental verification system is built to verify the rationality of the simulation system.The results show that this system is reasonable in design and strong in practicability,and can meet the test of steel cable handling performance under wing bending deformation.