飞行品质仿真计算与试飞数据对比分析

随着飞行控制系统越来越复杂,试飞过程逐渐向数字化过渡。在开展飞行试验前,通过数值模拟对飞机的主要飞行品质参数进行仿真计算,可以为试飞过程提供参考,提高飞行试验的效率。根据某型飞机的风洞试验数据,建立该型飞机的气动力数学模型,基于Flightgear飞行模拟软件搭建功能完备的实时飞行模拟平台,完成飞行品质的数字化试飞。选取典型试飞数据对所建立的气动力模型与数值仿真结果进行验证,结果表明:数值仿真结果与试飞结果具有较好的一致性。

flying quality simulation and flight test

As the aircraft flight control system becoming more and more complicate,the process of flight test is gradually evolving a numerical one.Before the flight test,the parameters of the flight quality can be simulated through numerical calculation so as to supply aprediction and improve the flight test efficiency.The wind tunnel test data of certain type of aircraft are analyzed and its aerodynamic model is built.On the basis of the model a real time flight simulation platform is developed by using the Flightgear software and the calculation of the major flight handling quality is accomplished through numerical experiment.The typical real flight test data are selected to verify the results of the numerical simulation.The comparison of the result between the numerical calculation and flight test shows that both agree well.