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Simulation method of atmospheric turbulence on flight simulator

A technology of flight simulator and simulation method, which is applied to simulation devices, simulators, instruments, etc. of space navigation conditions, can solve the problems of poor simulation accuracy and fidelity, and achieve the goal of improving simulation fidelity, avoiding errors and distortions, Accurate and realistic effect

Inactive Publication Date: 2010-12-29
PLA AIR FORCE AVIATION UNIVERSITY
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Problems solved by technology

At present, from domestic and foreign literature retrieved from scientific and technological novelty searches, the simulation method of aircraft buffeting caused by atmospheric turbulence generally adopts artificially setting a buffeting function and adding it to the instrument system and motion system of the simulator, while The results of the turbulence model are not used to drive the instrumentation system and the motion system, so the simulation of the effect of atmospheric turbulence is less accurate and realistic in the entire time domain range and frequency spectrum range

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  • Simulation method of atmospheric turbulence on flight simulator
  • Simulation method of atmospheric turbulence on flight simulator
  • Simulation method of atmospheric turbulence on flight simulator

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Embodiment Construction

[0019] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0020] Start the turbulent flow program on the main computing computer 1, the random number is generated from the signal, after the rationalization of the spectral functions of the turbulent flow components in the three directions, and then processed by the filter, the three components of the turbulent flow are formed, and the These three turbulence components are added to the flight speed of the aircraft through coordinate transformation, and then substituted into the motion equation for settlement, and finally the relevant aircraft flight state parameters are obtained (see figure 1 , 4 ).

[0021] according to figure 2 , image 3 , Figure 4 , output the flight state parameters sent to the motion system to the network card 2, then to the HUB 3, and then to the network card 4, and then output to the platform control computer 5 through the network ...

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Abstract

The invention discloses a simulation method of atmospheric turbulence on a flight simulator, in particular to an accurate atmospheric turbulence simulation method. An established atmospheric turbulence simulation model built in the method is more approximate to the statistic characteristics of the atmospheric turbulence in frequency spectrum response and simulation results, and the amplitude frequency of the atmospheric turbulence is more violent; a turbulence parameter is input to a main calculating computer motion equation of a simulator for resolving and calculating, a calculated flight state parameter of a plane is directly transmitted to a motion system and a meter system of the simulator so as to simulate the influence of the atmospheric turbulence on the flight state of the plane, in particular the influence on the buffeting of the plane, which is brought by the atmospheric turbulence. The method can achieve accurate and vivid simulation effect and also can avoid errors and distortion which are brought by directly artificially setting a buffeting function and adding the buffeting function to the meter system and the motion system of the simulator to simulate the buffeting influence of the atmospheric turbulence in the traditional method.

Description

technical field [0001] The invention belongs to the field of flight simulation. The invention discloses a method for simulating atmospheric turbulence on a flight simulator, which is used for improving the simulation accuracy of the flight performance and flight quality of the flight simulator, and relates to the fields of flight systems, motion systems and instrument systems of the flight simulator. Background technique [0002] Atmospheric turbulence has an important impact on aircraft flight performance, especially flight safety. Therefore, how to establish a mathematical model that can accurately simulate atmospheric turbulence and implement it on a flight simulator is an urgent problem to be solved. In the simulation of turbulent flow, a big technical problem is the simulation of the buffeting of the aircraft on the corresponding degrees of freedom (including the buffeting of the instrument indication and the buffeting of the moving platform) brought about by the atmos...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G09B9/16G06F17/50
Inventor 李国辉张峰卢颖李友毅
Owner PLA AIR FORCE AVIATION UNIVERSITY
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