Novel ejection seat program control method

Abstract

The invention discloses a novel ejection seat program control method, and belongs to the technical field of aviation ejection rescue. According to the method, a posture control scheme is designed according to the ejection safety rescue requirement of an ejection seat in the low-altitude unfavorable posture situation, and executing mechanisms, control parameters and ejection state parameters of different posture control schemes are determined; a mathematic model and a simulated program in the whole ejection seat ejection process is established, a sample point set making the performance optimalis obtained through simulation, then, the sample point set is used for training and testing the BP neural network, and finally, an obtained BP neural network model is written into an ejection seat program controller. According to the novel ejection seat program control method, state parameter space division can be effectively avoided, limitation from the number of ejection state parameters and control parameters is avoided, and optimality of control parameters within the state space overall range is guaranteed.

Description

Technical field [0001] The invention relates to the technical field of aviation ejection and rescue, in particular to a new type of ejection seat program control method. Background technique [0002] The ejection seat is the main life-saving equipment to provide pilots with emergency departure. With the continuous improvement of fighter performance, the ejection state has become more and more complicated, and new index requirements have been put forward for the life-saving performance of ejection seats, namely low-altitude unfavorable posture ejection and high-speed ejection lifesaving. In order to meet the new life-saving performance requirements, more equipment (posture rocket, thrust vector, etc.) will be applied to the ejection seat, which requires more controlled parameters, making the program control design more and more complicated. [0003] The traditional ejection seat program control is to divide the corresponding ejection modes according to different ejection states (ej...

AI Technical Summary

Problems solved by technology

However, when there are many state parameters and there is a large amount of overlap in the values ​​of each parameter, the method of mode division will be extremely complicated, mainly reflected in the fact that the state space is difficult to divide, the critical value of the parameters is difficult to determine, and the control parameters in each division interval The degree of optimization cannot be guaranteed, etc.

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