基于逆模拟分析的民用飞机操纵状态再现研究

Research of Reproduction of Civil Aircraft's Manipulation State Based on Inverse Simulation Technology

民航飞行事故原因调查分析时,常常要对飞机的操纵状态进行再现分析。但由于FDR数据缺失、设备损坏等各类原因,对飞行员的操纵情况并不能准确有效地还原。采用逆模拟技术是解决飞行操纵状态再现分析的有效途径。逆模拟技术是通过已知的系统输出确定动态系统控制输入的计算方法。在众多逆模拟算法中,积分逆模拟算法由于具有模型独立、实现简单而得到广泛应用。对某中型民用运输机采用积分逆模拟方法,对一个简单的飞机操纵进行了再现分析。分析了积分逆模过程中的收敛区间和稳定性,并总结了使用积分逆模拟算法的注意要点。

The investigate of the cause of a civil aviation flight accident is always needed to analysis the manipulation state of the plane. But because of the lacking of FDR data,equipment damage and other kinds of reasons,the reproduce of manipulation state is not always effective. It is an effective way to realize the reproduction of manipulation state by inverse simulation technology. Inverse simulation techniques are computational methods that determine the control inputs to a dynamic system that produce desired system outputs. In numerous inverse simulation algorithms,the integral inverse simulation algorithm is widely used with the advantage of independent with model and simple implementation. In this paper,a simple manipulation of a medium- sized civil transport aircraft is reproduced by the integral inverse simulation method. The convergence interval and stability are analyzed in the process of integral inverse simulation.The key points of using the inverse simulation algorithm is summarized.