Complex aircraft configuration aerodynamic load batch extraction method
A technology of aerodynamic loads and extraction methods, applied in special data processing applications, geometric CAD, sustainable transportation, etc., to achieve the effect of strong adaptability and guaranteed accuracy
Pending Publication Date: 2021-01-29
NORTHWESTERN POLYTECHNICAL UNIV
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However, they mainly focus on the specific analysis method of aerodynamic load or the extraction method of related pressure distribution and force coefficient. There is no related patent related to the batch extraction and processing method of aerodynamic load calculation results of complex aircraft configurations.
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[0041] see figure 1 — Figure 11, to establish a general aerodynamic load extraction method for batch processing and extraction of complex aircraft configuration aerodynamic load data. This method can quickly and accurately obtain the pressure distribution characteristic data of each individual part of the aircraft under different flight states, and output them in batches according to a certain data format; this method has strong adaptability, is suitable for various complex aircraft configurations, and After the type changes, it is only necessary to update the discrete point data set without any changes to the program and method itself; the data extraction module uses an advanced interpolation algorithm, which can fully guarantee the consistency between the extracted pressure distribution data and the calculation results .
[0042] A batch extraction method of complex configuration aerodynamic loads has been invented, and its specific implementation steps are shown in the f...
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The invention relates to a complex aircraft configuration aerodynamic load batch extraction method, and aims to form an efficient and reliable aerodynamic load extraction process and method based on anumerical simulation result obtained by an RANS method and a spatial discrete point data set obtained by discretization of a model geometrical shape. An aerodynamic load distribution database meetinga certain data format is obtained through searching and three-dimensional space interpolation and serves as input for structural finite element solving in the next step. The method is flexible, efficient and high in adaptability, and batch extraction and formatted output of aerodynamic loads of various complex aircraft configurations can be rapidly completed. Moreover, by adopting a high-fidelitygeometrical shape discretization mode and a high-precision spatial interpolation method, the precision of an extraction result and the reliability of a structural load calculation result can be ensured.
Description
technical field [0001] The invention belongs to the field of aircraft aerodynamics and strength calculations, and relates to a method for extracting aerodynamic load results for complex aircraft configurations based on spatial discrete point data sets, which can quickly and efficiently extract all the results from numerical simulation results in batches according to a given format. The required aerodynamic load data are used as input and basis for structural load calculations. Background technique [0002] During the aircraft design process, the structural strength analysis is used to obtain the overall force of the entire aircraft structure and the maximum stress state of each component, and based on this, sufficient structural strength margins are left in the design to ensure the aircraft structure in actual flight. safety. As an important basis for strength analysis and structural design, the accurate calculation of aircraft aerodynamic loads can not only improve the rel...
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IPC IPC(8): G06F30/15G06F30/20
CPCG06F30/15G06F30/20Y02T90/00
Inventor 杨钊李杰赵帅唐松祥魏自言姜有旭
Owner NORTHWESTERN POLYTECHNICAL UNIV