Method for simulating flight process of aircraft

A flight process and aircraft technology, applied in the field of air traffic management and general aviation, can solve problems such as the inability to achieve high-level simulation, high information density, and direct flight algorithms that cannot adapt to flight simulators.

Active Publication Date: 2014-02-12
华北计算技术研究所
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The direct flight algorithm is suitable for the situation where the information density of known track points is high and the track is mostly direct flight. For the track with few track points and turning, the direct flight algorithm cannot achieve high-level simulation
[0004] However, the current flight simulator simulates the whole flight process of an

Method used

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  • Method for simulating flight process of aircraft
  • Method for simulating flight process of aircraft
  • Method for simulating flight process of aircraft

Examples

Experimental program
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Effect test

Embodiment 1

[0080] Based on the above-mentioned basic idea, the present invention takes the following comparatively specific steps to carry out flight simulation according to the different flight characteristics of the aircraft in the four stages of departure stage, route stage, approach stage and approach stage. For these four stages, the specific steps of the method are:

[0081] Step 1. Taking the center point of the aircraft runway as the starting point and taking the first point of the route as the end point, divide the departure phase of the aircraft. The departure phase is the process of the spacecraft climbing while accelerating:

[0082] Obtain the aircraft's departure speed and various passing points during the departure phase;

[0083] At each passing point of the departure phase, obtain the flight information of the aircraft once: speed, acceleration, climb rate, and turning slope; use the selected extrapolation algorithm to perform extrapolation according to the flight inform...

Embodiment 2

[0112] For the scheme recorded in embodiment 1, there are multiple methods for judging the direct flight and turning,

[0113] One is to judge whether a turn is necessary at this stage according to the standard route or the planned route;

[0114] The second is to assume that the current passing point is A 2 location, such as figure 2 As shown, if the controller gives an instruction to turn or not at this time, it is directly judged whether to turn or not;

[0115] Second, if the controller does not give an instruction to turn or not, then obtain the previous passing point A of the current passing point 1 and the next passing point position A 3 , calculate the straight line |A 1 A 2 |and|A 3 A 2 The angle between |, judge whether to turn or not according to the range of the angle.

Embodiment 3

[0117] The turning extrapolation algorithm used in Embodiment 1 of the present invention is specifically:

[0118] Step 1. Determine the turning start point A in :

[0119] If at the current position A 2 When , the controller does not give a turn position instruction, then let A 2 for A in ;Otherwise determine A with the turning position specified by the turning position instruction in ;

[0120] Step 2: Calculate the turning radius R:

[0121] R = V 2 g · tgγ

[0122] Where g is the acceleration of gravity, V is the airspeed, and γ is the turning slope; the turning slope is a specified value;

[0123] Step 3: Determine the direction of the turn:

[0124] A in The heading at is the current heading curHead, that is, the straight line|A 1 A in The connection of |;

[0125] Calculate curHead and |A in A 3 |The angle θ of the con...

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Abstract

The invention provides a method for simulating the flight process of an aircraft and belongs to the field of general aviation for air traffic management. The method for simulating the flight process of the aircraft specifically comprises the steps that the flight process of the aircraft is divided into four stages firstly, wherein the four stages are a departure stage, an airway stage, a marching-in stage and an approaching stage; all passing points of each stage are obtained, an extrapolation algorithm of each passing point is selected to be a direct flight extrapolation algorithm or a turning extrapolation algorithm according to the characteristics of each stage; real-time flight information of the aircraft is obtained once at the position of each passing point of each stage; extrapolation is carried out according to the selected extrapolation algorithm to obtain the flight attitude of the aircraft at each stage according to the flight information; whether the aircraft reaches a passing point is judged each time when the extrapolation is finished, and the extrapolation algorithm is changed if the aircraft reaches a next passing point; the flight attitudes of the aircraft at the four stages are combined to obtain the flight attitudes of the aircraft in the whole flight process. The method is suitable for being used for simulating the whole flight process of the aircraft.

Description

technical field [0001] The invention belongs to the general aviation field of air traffic management, and in particular relates to a method for simulating a flight process. Background technique [0002] When simulating the flight process of an aircraft, the commonly used simulation method at present is mainly the timing extrapolation method. According to a predetermined set of discrete track point positions or real-time instructions from the controller, where the real-time instructions include information such as position, heading and speed, the position of the next point is adjusted every certain time ΔT (such as 1 second, 3 seconds, etc.) Extrapolate to simulate a coherent flight trajectory. [0003] The commonly used extrapolation method is mainly the direct flight algorithm: given the current position L, current speed v, current acceleration a and climb rate l, the flying distance x is obtained, x=v×ΔT+a×ΔT 2 / 2; target speed v'=v+ΔT×a; and target height H, H=L+ΔT×l, a...

Claims

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Application Information

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IPC IPC(8): G08G5/00
Inventor 王家隆辛晓娜王玉柱
Owner 华北计算技术研究所
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