Research And Implementation Of Flight Simulation System Based On Web

In the process of aircraft design,it has become one of the most effective and feasible ways to use virtual simulation technology to build a visual platform to assist problem analysis and design improvement and reduce the investment of research cost.With the deepening of problem research and the gradual expansion of the scope of information exchange,the existing simulation system is more and more difficult to meet the actual needs of the expanding collaborative communication between people in different fields and regions.How to break the limitations of traditional simulation system in terms of use conditions,build a networked,service-oriented,universal simulation system,and provide more flexible and open simulation services for users is a key issue in the current flight simulation.In order to solve these problems,this paper combines the aircraft design field with simulation technology and web technology,constructs a web-based flight simulation system,and forms an open simulation system from aircraft trajectory control to 3D visualization service.In this system,the aspirated hypersonic vehicle is taken as the research object,the longitudinal aerodynamic simulation is established by using the previous research process,and the kinematic equations are established according to the different dynamic characteristics and performance indexes in the process of vehicle ascending,cruising and descending.The ascending,cruising and descending stages are modeled by using the dynamic inverse method,solving differential equations and particle swarm optimization algorithm respectively And simulation control to complete the trajectory control of the aircraft.At the same time,three.js three-dimensional engine is used to model the flying environment,the aircraft entity and the tail flame effect in the flying scene.On this basis,combined with the aircraft control module,the model is driven by the aircraft trajectory data to further generate the dynamic simulation of the flight mission.Finally,aiming at the viewpoint control technology in the flight simulation system,using the design idea of agent system and the shooting technique of motion photography,the hot event monitoring agent,observation mode control agent and observation target control agent are designed to realize the automatic planning and smooth transition of viewpoint in the flight simulation system and enrich the visual effect of the simulation scene.The realization of the flight simulation system based on web not only provides an effective way for the performance evaluation of hypersonic vehicle,but also proves the feasibility of the combination of web technology and simulation technology,so that users can have more open,flexible and efficient use experience in the simulation process.