Method for dynamically optimizing wash-out coefficient and fully performing overload capacity of movement platform

Abstract

The invention discloses a method for dynamically optimizing washout coefficient to bring the movement platform overload capacity into full play. A cost function is used for determining a washout module coefficient, and positions and gestures of six freedom degrees of the movement platform are generated after the implementation of real-time dynamic optimization. The variation of the overload, which is generated in the middle of the stroke of a mechanism is greater than the variation of the positions and gestures of the six freedom degrees, which is generated by a constant coefficient washout module, and in an attachment to the stroke end of the mechanism, the actually achieved positions and gestures of the six freedom degrees of the movement platform after the output of a previous command are taken into consideration so as to prevent the frequent brake in the neighborhood of the stroke end of the mechanism, so that the movement platform overload capacity is brought into full play and the aim of maximally developing the movement platform performance is achieved. The invention is used for improving the fidelity of dynamic simulation of a flight simulator and relates to the field of dynamic simulation of the six-freedom-degree movement system of the flight simulator.

Description

technical field [0001] The invention discloses a method for dynamically optimizing wash-out coefficients to fully exert the overload capacity of a motion platform, which is used to improve the fidelity of dynamic simulation of a flight simulator, and relates to the field of dynamic simulation of a six-degree-of-freedom motion system of a flight simulator. Background technique [0002] Due to the limited travel of the motion platform of the flight simulator, while the aircraft moves in infinite space, the key to improving the fidelity of the dynamic simulation of the motion platform is to maximize the performance of the motion platform. Increasing the overload index of the motion platform means an increase in the cost; simply increasing the gain coefficient of the washout model will cause frequent braking near the end of the mechanism's stroke, resulting in false dynamic hints and affecting the fidelity of the simulation. Therefore, determining the washout model coefficients ...

AI Technical Summary

Problems solved by technology

At present, from the domestic and foreign literature (including patent databases) retrieved from scientific and technological novelty searches, the method of improving the fidelity of dynamic simulation of the flight simulator motion platform is generally to increase the gain coefficient of the washed out model or to increase the corresponding overload index of the motion platform. , none of these methods maximized the performance of the motion platform

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