A Method and Device for Stiffness Calculation of Aeronautical Orthogonally Stiffened Plate

A technology of stiffness calculation and stiffened plate, applied in the field of aviation siding, can solve problems such as calculation, achieve the effect of improving processing quality and efficiency, correct algorithm principle, and meeting the requirements of aircraft design

Active Publication Date: 2021-07-02
BINZHOU UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] Aiming at the deficiencies in the prior art and solving the problem of how to quickly and accurately calculate the stiffness value of complex multi-orthogonal stiffened aviation panels in the prior art, the present invention provides a method and device for calculating stiffness of aviation orthogonal stiffened panels

Method used

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  • A Method and Device for Stiffness Calculation of Aeronautical Orthogonally Stiffened Plate
  • A Method and Device for Stiffness Calculation of Aeronautical Orthogonally Stiffened Plate
  • A Method and Device for Stiffness Calculation of Aeronautical Orthogonally Stiffened Plate

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Embodiment 1

[0054] The purpose of this embodiment 1 is to provide a method for calculating the stiffness of an aeronautical orthogonally stiffened plate.

[0055] In order to achieve the above object, the present invention adopts the following technical scheme:

[0056] Such as figure 1 as shown,

[0057] A method for calculating the stiffness of an aeronautical orthogonally stiffened plate, the method comprising:

[0058] Step (1): Receive the data of the aeronautical orthogonally stiffened slab, construct the theoretical mechanical model of the single-rib orthotropic slab, and calculate the bending stiffness of the single-rib orthotropic slab;

[0059] Step (2): Calculating the bending deformation curve of an orthotropic plate with a single-rib distribution structure by applying a finite element model through a static bending moment;

[0060] Step (3): Comparing the data results calculated by the above two models, the correction parameters of the finite element model are obtained, th...

Embodiment 2

[0085] The purpose of Embodiment 2 is to provide a computer-readable storage medium.

[0086] In order to achieve the above object, the present invention adopts the following technical scheme:

[0087] A computer-readable storage medium, in which a plurality of instructions are stored, and the instructions are adapted to be loaded by a processor of a terminal device and perform the following processing:

[0088] Step (1): Receive the data of the aeronautical orthogonally stiffened slab, construct the theoretical mechanical model of the single-rib orthotropic slab, and calculate the bending stiffness of the single-rib orthotropic slab;

[0089] Step (2): Calculating the bending deformation curve of an orthotropic plate with a single-rib distribution structure by applying a finite element model through a static bending moment;

[0090] Step (3): Comparing the data results calculated by the above two models, the correction parameters of the finite element model are obtained, the...

Embodiment 3

[0092] The purpose of Embodiment 3 is to provide a terminal device.

[0093] In order to achieve the above object, the present invention adopts the following technical scheme:

[0094] A terminal device, including a processor and a computer-readable storage medium, the processor is used to implement instructions; the computer-readable storage medium is used to store multiple instructions, and the instructions are suitable for being loaded by the processor and performing the following processing:

[0095] Step (1): Receive the data of the aeronautical orthogonally stiffened slab, construct the theoretical mechanical model of the single-rib orthotropic slab, and calculate the bending stiffness of the single-rib orthotropic slab;

[0096] Step (2): Calculating the bending deformation curve of an orthotropic plate with a single-rib distribution structure by applying a finite element model through a static bending moment;

[0097] Step (3): Comparing the data results calculated by...

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Abstract

The invention discloses a method and device for calculating the stiffness of an aeronautical orthogonally stiffened plate. The method includes: receiving the data of an aeronautical orthogonally stiffened plate, constructing a theoretical mechanical model of a single-rib orthotropic plate, and calculating the single-rib orthotropic Bending stiffness value of the plate; apply the finite element model through the static bending moment, calculate the bending deformation curve of the orthotropic plate of the single-rib distribution structure under the bending moment; compare the data results calculated by the above two models, and obtain the correction parameters of the finite element model , construct the numerical model of the complex aeronautical multi-reinforced orthogonal plate, and calculate the stiffness value of the aeronautical orthogonally stiffened plate. The present invention starts from the characteristics of wall plate parts, avoids the previous method of estimating the stiffness based on experience, quickly calculates the stiffness of the aviation orthogonally stiffened plate, and can provide a theory for the clamping scheme and quality control of the frame parts in the processing process basis, improve processing quality and efficiency.

Description

technical field [0001] The invention belongs to the technical field of aviation panels, and relates to a method and device for calculating the stiffness of aviation orthogonally stiffened panels, in particular to a method and device for calculating the stiffness of complex multi-orthogonally reinforced aviation panels using finite element correction models . Background technique [0002] The advantages of aviation wallboard parts mainly include time-saving assembly and good overall performance. However, large-scale aviation panels also have disadvantages such as large size, complex features, and long processing cycle. It is interfered by factors such as material properties and structural characteristics during processing, and processing deformation will occur. It is difficult to meet the design requirements. [0003] Research in the industry mainly focuses on machine tools, cutting tools, cutting parameters, tool path, cutting force, etc., ignoring the analysis of the stru...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F30/15G06F30/23G06F119/14
CPCG06F30/15G06F30/23G06F2119/06
Inventor 黄晓明
Owner BINZHOU UNIV
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