During the flight, the aircraft often due to atmospheric turbulence caused by flight bumps, a long time will cause fatigue damage to the aircraft structure. All kinds of low altitude starting phenomenon is the main dangerous weather, which is the main dangerous weather during the takeoff and landing stage. It is very meaningful to simulate the flight of the aircraft in the flight simulator with high fidelity, which is useful for scientific research and training of the pilots. In this paper, all kinds of atmospheric disturbance model and the real time simulation model are established for the flight simulator. Based on the model of various atmospheric disturbances, an aircraft is built through the embedded database and real-time simulation platform, which can be used to simulate the flight simulator. Finally, a numerical simulation method is used to study the dynamic response of a large aircraft through the low altitude and the atmospheric turbulence. Compared with small aircraft, large aircraft scale and small scale wind field scale closely, should not be the aircraft as a particle approximation. Therefore, the dynamic model of wind conditions based on the study of general correction method with three-dimensional turbulent wind effect model. On the basis of the above, a real-time simulation was carried out for the longitudinal change and the lateral change of the large aircraft through the low altitude micro burst flow, and the influence of the delay of the engine on the flight was studied. Simulation Requirement Analysis Because the flight simulator is a kind of simulation equipment, which is controlled by the computer, coordinated by the multi system, can be repeated in the air environment, and can be operated ". When a flight simulator is developed, people always ask, "does it fly like a real plane?" Its essence is in the comparison of the simulated and the real aircraft pilot-aircraft control loop performance to a similar degree, about the accuracy of it with one hand and with the simulation model, on the other hand, with the simulation model of coordination is closely related to the operation of, while the latter is for flight simulation part of the machine real-time simulation management system. In this paper, the control simulation of aircraft under complex weather conditions is studied, and the simulation simulator is shown in Fig.1. The management layer comprises the visual system software, the interface system software, the sound system software, the motion system software, the instrument system software, the control load system software and the corresponding physical effect equipment. The integrated information of the simulation computer generates a visual, auditory, motion and force sensing signal, and the application layer generates the corresponding driving signal. Computer real time simulation mainly consists of two parts of the simulation model and real-time simulation management system. The simulation model for the functional simulation of the performance of the aircraft and aircraft systems, real...
