Bidirectional intelligent selection fluid-solid coupling analysis method

A fluid-solid coupling and analysis method technology, applied in special data processing applications, instruments, electrical digital data processing, etc., can solve the problems of poor accuracy, low interpolation efficiency, low degree of automation, etc., to overcome poor accuracy, improve precision and Efficiency and ease of engineering application

Pending Publication Date: 2021-02-12
BEIJING RES INST OF MECHANICAL & ELECTRICAL TECH
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Problems solved by technology

[0009] The purpose of the present invention is to overcome the deficiencies in the prior art, and provide a fluid-solid coupling analysis method with bidirectional intelligent selection, which can solve the problems of poor accuracy, low data transmission accuracy, low interpolation efficiency and automation degree existing in the existing interpolation methods low technical issues

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  • Bidirectional intelligent selection fluid-solid coupling analysis method
  • Bidirectional intelligent selection fluid-solid coupling analysis method
  • Bidirectional intelligent selection fluid-solid coupling analysis method

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[0036] It should be noted that, in the case of no conflict, the embodiments in the present application and the features in the embodiments can be combined with each other. The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. The following description of at least one exemplary embodiment is merely illustrative in nature and in no way taken as limiting the invention, its application or uses. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0037] It should be noted that the terminology used here is only for describing specific implementations, and is not intended to limit t...

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Abstract

The invention provides a bidirectional intelligent selection fluid-solid coupling analysis method. The technical problems that an existing interpolation method is poor in accuracy, low in data transmission precision, low in interpolation efficiency, low in automation degree and the like can be solved. The method comprises the following steps: S1, establishing a flow field CFD grid and a structurefinite element grid; S2, intelligently matching and grouping all structure finite element grid nodes according to the flow field object planes numbered in sequence through a set intelligent matching judgment criterion; S3, training the structural finite element grid nodes after matching and grouping to obtain a structural feature point set {QFEM}, and establishing a data transfer relationship {TFC} between the {QFEM} and the corresponding flow field object plane nodes; S4, obtaining the aerodynamic force of the flow field; S5, interpolating aerodynamic force, calculating elastic deformation, and interpolating the deformation to a CFD grid; S6, carrying out the flow field calculation of the CFD grid for the deformed flow field grid; and S7, judging whether a calculation result meets a static aeroelasticity convergence condition or not.

Description

technical field [0001] The invention relates to the technical field of aircraft aeroelasticity, in particular to a two-way intelligent selection fluid-solid coupling analysis method. Background technique [0002] With the continuous improvement of aircraft performance, the shape of aircraft is becoming more and more complex. The demand for aeroelasticity is no longer limited to the analysis of aeroelasticity in a single typical state. It needs to have multiple typical states, adapt to complex shapes, and be robust with high efficiency and high precision. Analytical methods, which undoubtedly put forward higher requirements for aeroelastic analysis technology. In the past, engineering analysis methods were mostly used in aeroelastic analysis methods, but as the aerodynamic shape becomes more and more complex, the limitation that the complex flow field environment cannot be truly simulated gradually appears, and the CFD / CSD direct coupling aeroelastic analysis method has gradu...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F30/15G06F30/23G06F30/27G06F119/14
CPCG06F30/15G06F30/23G06F30/27G06F2119/14Y02T90/00
Inventor 田海涛刘凯程萌
Owner BEIJING RES INST OF MECHANICAL & ELECTRICAL TECH
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