A real-time motion control method for a dynamic flight simulator

Abstract

The present invention relates to a kind of dynamic flight simulator real-time motion control method, comprises the following steps: 1) overload discretization: carry out discretization sampling to given G(t) with sampling period Δt, record tn,n=1,2, ...the overload received by the pilot at time is G(tn); 2) Overload preprocessing: Preprocess the discretized overload G(tn) to form an overload command Gc(tn) curve; 3) The non-unloading section is large Arm motion planning: calculate the angular velocity and angular acceleration of the boom motion at the time tn in the non-unloading section 4) Boom motion planning in the unloading section: calculate the angular velocity and angular acceleration of the boom motion at the moment tn in the unloading section 5) Centrifugal overload, shear Calculation of lateral overload and vertical overload: centrifugal overload, tangential overload, vertical overload GV=g / g=1; 6) middle frame and basket motion planning: solve the size of the middle frame roll angle θ2(tn) and the pitch angle of the basket Size θ3(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 an overload of up to 9g during maneuvering, and the rate of overload change can reach a maximum of 6g / s. big. These harsh flight conditions can easily lead to black vision, spatial positioning illusions and even loss of consciousness when pilots make large maneuvers, which can easily cause serious consequences. Aeromedical research shows that repeated high-overload training for pilots can effectively improve their ability to withstand overload. Using real aircraft training will have the best effect, but this method not only consumes the service life of the aircraft, but also costs a lot, and there are greater safety hazard...

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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