Dynamic flight simulator real time motion control method

Abstract

The invention relates to a dynamic flight simulator real time motion control method comprising the following steps: 1, overload discretization: carrying out discretization sampling for a given G(t) in a sampling period [delta]t, recording overloads received by a pilot at tn time (n-1,2,..) as G(tn); 2, overload pretreatment: carrying out pretreatment for discretization overload G (tn) so as to form an overload instruction Gc (tn) curve; 3, non unloading segment large arm motion program: resolving a large arm motion angle velocity [theta]1(tn) and an angular acceleration [theta]1i(tn) of the non unloading segment at tn time; 4, unloading segment large arm motion program: resolving a large arm motion angle velocity [theta]1(tn) and an angular acceleration [theta]1i(tn) of the unloading segment at tn time; 5, centrifugation overload, tangential overload and vertical overload calculation: formulas of the three are listed in the specification; 6, middle frame and hanging basket motion program: solving a middle frame roll angle [theta]2(tn) and a hanging basket pitch angle [theta]3(tn).

Description

Technical field [0001] The invention relates to a real-time motion control method of a dynamic flight simulator, which belongs to the technical field of aircraft control. Background technique [0002] With the continuous development of both theory and technology in the field of aircraft research and development, modern high-performance flight can produce up to 9g of overload during maneuvering, with a maximum overload change rate of 6g / s, and the sudden amplitude and repeated frequency of overload Big. These harsh flight conditions can easily lead to black vision, illusion of spatial positioning and even loss of consciousness when the pilots make larger maneuvers, which can easily cause serious consequences. Aviation medical research shows that repeated high-overload training for pilots can effectively improve their overload tolerance. The use of real machine training will have the best effect, but this method not only consumes the service life of the aircraft, the cost is huge...

AI Technical Summary

Problems solved by technology

Due to the mutual coupling between the angular velocity and angular acceleration of the boom and the overload of the whole machine, the angular velocity of the boom required for the unloading section of the dynamic flight simulation process cannot be directly calculated, and there are few related research results at home and abroad.

Vidakovic et al. [1] proposed a method to calculate the motion parameters of the boom in the unloading section by using the Jacobi elliptic function. The calculation process of this method is complicated, the calculation accuracy is limited, and the maximum absolute error of overload is 0.49g

Tsai et al. [2] proposed a method for reverse calculation of the boom motion parameters in the unloading section. This method is simple in calculation and the maximum absolute error of overload is small. flight simulation

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