Parameterization design method for three-dimensional flight profile
A technology of profile parameters and design methods, applied in the direction of calculation, complex mathematical operations, electrical digital data processing, etc., can solve the problems of overturning design results, inefficiency, inflexible editing, adding and deleting of flight stages, etc., to achieve design Efficient process, flexible design process, and accurate flight path
Active Publication Date: 2019-11-26
CHENGDU AIRCRAFT INDUSTRY GROUP
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Problems solved by technology
[0004] The shortcomings of the existing technology: the adjustment process of the flight path is cumbersome and inefficient, and the adjustment results are not accurate and standardized; the editing, adding and deleting of the flight phase are not flexible enough, and the partial adjustment of the flight mission means that the design results have to be overthrown and restarted
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specific Embodiment
[0072] Take the following specific examples as examples:
[0073] This embodiment will be based on matlab software, using the parametric design method of a three-dimensional flight profile provided by the present invention to complete such as figure 2 , Figure 4 The design of the three-dimensional flight profile of a certain flight mission is shown.
[0074] In this embodiment, the trajectory zone is composed of four spatial curves: sideline A1, sideline B2, sideline C3, and sideline D4, such as image 3 Shown. Sideline A1, sideline B2, sideline C3, and sideline D4 are collectively referred to as trajectory band edges. The distance between the edges of the track zone is constant, and the distance between the edge A1 and the edge B2 is equal to the interval between the edge C3 and the edge D4, which is the width of the track zone; the interval between the edge A1 and the edge D4 It is equal to the distance between sideline B2 and sideline C3, which is the thickness of the track z...
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The invention discloses a parameterization design method for a three-dimensional flight profile, and relates to the technical field of aircraft flight design. The method comprises steps of decomposinga three-dimensional flight track into a plurality of track band units by analyzing the geometrical characteristics of the flight track, forming a track band unit library by all track band units, anddefining the characteristics of the track band units by attribute parameter basic attribute parameters and geometrical attribute parameters of the track band units; and constructing a parameterized model of the three-dimensional flight profile through selection and combination of track band units and parameter assignment. According to the three-dimensional flight profile parameterization design method disclosed by the invention, the three-dimensional flight profile is designed by selecting and combining the flight path belt units and assigning the parameters to obtain the parameterization model of the three-dimensional flight profile, and the parameterization model comprises all information for drawing the three-dimensional flight profile, so that the parameterization model does not need to be pushed over when a flight task is adjusted. According to the three-dimensional flight profile model obtained through the design method, the flight path is more accurate, the attitude is more standard, and the design process is more flexible and efficient.
Description
Technical field [0001] The invention relates to the technical field of aircraft flight mission design, in particular to a parametric design method of a three-dimensional flight profile. Background technique [0002] The flight profile is a graph of the aircraft's trajectory drawn to complete a specific flight mission, and is a form of vividly expressing the flight mission. The flight profile takes the plane's take-off base as the origin, and consists of several flight stages such as take-off, climb, cruise, maneuver, descent, and landing. The flight profile has two forms, two-dimensional and three-dimensional. The two-dimensional flight profile is drawn by lines. Because the lines can carry limited information in addition to reflecting the track, the two-dimensional flight profile relies more on annotation information when expressing the requirements and characteristics of the flight mission; in addition, due to the lack of a third dimension Information, the two-dimensional fli...
Claims
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Login to View More IPC IPC(8): G06F17/50G06F17/15
CPCG06F17/15
Inventor 尹梦骄贾晓峰杨海庆
Owner CHENGDU AIRCRAFT INDUSTRY GROUP