Research On Bomb-Dropping Effect Simulation For A Multi-Mission Unmanned Aerial Vehicle

Flight simulation systems have become an important platform for pilot simulation training,system performance evaluation and scientific research.Currently,combat flight platforms for military applications are multi-mission and intelligent.A core function of the multi-mission configuration UAV bomb-dropping effect simulation system is to simulate the different weapons to be launched in different ways,affecting the flight characteristics of the UAV platform,and then assist the designer to evaluate the safety of the launch strategy to select optimal launch strategy.Therefore,the research on the projectile simulation system of multi-mission configuration combat drone has important practical significance.This thesis aims at the actual simulation requirements of the bombing mission of a certain type of unmanned combat aerial vehicls,and carries out the design,development,testing and evaluation of a multi-mission configuration UAV bomb-dropping effect simulation system.The specific work is as follows:This paper studies the modeling method of multi-mission configuration UAV bombing process,and lays a theoretical and technical foundation for the development of multi-mission configuration UAV bombing process simulation system.By analyzing the general UAV's ontology model,aerodynamic model and flight control model construction method,the UAV carrier and load state description of multi-mission configuration is realized,and then the projectile process is described and analyzed based on the disturbance model,and the multi-task configuration is constructed.UAV bombing model;for the UAV bombing flight scene,design the waypoint tracking algorithm,and finally complete the multi-mission configuration UAV bombing mission modeling method research.The overall scheme design of the bombing process simulation system was carried out for the multi-mission configuration UAV.By analyzing the overall requirements of the multi-mission configuration UAV bomb-dropping effect simulation system,the characteristics of various flight tasks that the simulation system needs to simulate are summarized,and the requirements of flight management and flight control are put forward.Based on the above scheme,the multi-mission configuration UAV bomb-dropping effect simulation system is divided into three modules.Firstly,using the bombing simulation technology,the task configuration module is designed to simulate the force of the UAV bombing process.Secondly,using the waypoint tracking technology to generate Dubins curve,combined with flight modal control logic,design flight management.The module realizes the waypoint guidance and flight task management;then,by designing the PID controller,the control loop is constructed to realize the design of the flight control module.Finally,based on the interactive requirements of the simulation system,a GUI simulation model based on MATLAB environment is built.Use the equivalence class division method and the boundary value analysis method to design test cases and complete code check and black box test.Through simulation and contrast experiments,functional tests are carried out.The results show that the multi-mission configuration UAV bomb-dropping effect simulation system can simulate UAV cruise flight,weapon launch,climb and descent,and can simulate different configurations of UAV mission execution.The process of affecting flight characteristics before and after.