Research On Thrust Vector Measurement And Control System Of A Certain Engine

Thrust vector control technology is a major technology to improve the technical and tactical performance of fighters.The use of thrust vector control technology for fighters can significantly improve the maneuverability of fighters and the technical and tactical performance of vertical and short take-offs.Engine measurement and control technology is the core key technology in the development of thrust vectoring engine,which runs through the entire engine test and research process.Based on a certain type of engine test bench as the research background,this paper has carried out research on the engine thrust vector measurement and control system,combined with simulation analysis and experimental verification,designed the hardware structure and software program of the measurement and control system,and established a set of engine thrust vector measurement and control system.The measurement and control technology has important reference value.The specific research content of this paper is as follows:(1)Many schemes are proposed for the technical difficulties of the system.Through analysis and comparison research,a preliminary plan was made for the control algorithm and solution method,and then it was determined that FPGA+STM32 was the core architecture of the measurement and control system,and the storage module,communication module,etc.were integrated into the main controller system,and based on this Build the overall design plan.(2)Based on the principle of electro-hydraulic displacement servo system and control algorithm,the working process of the servo system is analyzed,and an adaptive fuzzy PID controller based on the servo system is designed.Finally,simulation comparison shows that there is almost no overshoot,The comprehensive superior performance of fast stability and high tracking accuracy under external interference.(3)The FPGA and its peripheral circuits are designed in the control system,and the 1553 B communication bus design based on FPGA is realized according to the requirements of control communication,and the software is written in the FPGA using Verilog HDL language.Finally,experiments have fully verified the feasibility and effectiveness of the research content in Chapter 3 and Chapter 4.(4)In the engine real-time signal acquisition system,by comparing several algorithms,the attitude fusion algorithm based on Kalman filter is used to complement the acceleration calculation and the quaternion calculation in the frequency domain,and make it run in the DSP.While ensuring the real-time performance of the system,the attitude calculation accuracy of strapdown inertial navigation is improved.Finally,after testing,the engine attitude calculation and load force acquisition functions have been well realized.(5)In order to test the real-time transmission performance and control resolution accuracy of the measurement and control system in this paper,an experimental platform is built,related experiments are designed and carried out,and the relevant data results are finally analyzed.