Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Buckling treatment method of movable airfoil sealing structure

A processing method and technology of dynamic airfoil, applied in the direction of instrumentation, geometric CAD, computer material science, etc., can solve the problems of inability to accurately evaluate and calculate the stability of the sealing structure of the dynamic airfoil, and the low accuracy of the analysis and calculation of the buckling area, to achieve Effects of improving calculation and analysis accuracy and reducing structural weight

Pending Publication Date: 2020-05-15
XIAN AIRCRAFT DESIGN INST OF AVIATION IND OF CHINA
View PDF19 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In order to solve the above technical problems, the embodiment of the present invention provides a buckling treatment method for the sealing structure of the moving airfoil to solve the problem that the stability of the sealing structure of the moving airfoil cannot be accurately evaluated and calculated in the existing way, and the buckling area The problem of low calculation accuracy of the analysis

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Buckling treatment method of movable airfoil sealing structure
  • Buckling treatment method of movable airfoil sealing structure
  • Buckling treatment method of movable airfoil sealing structure

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0040] In order to make the purpose, technical solution and advantages of the present invention more clear, the embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings. 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 arbitrarily with each other.

[0041] The steps shown in the flowcharts of the figures may be performed in a computer system, such as a set of computer-executable instructions. Also, although a logical order is shown in the flowcharts, in some cases the steps shown or described may be performed in an order different from that shown or described herein.

[0042] The task and purpose of the embodiment of the present invention is to provide a set of structural buckling and post-buckling analysis methods to obtain the structural critical instability load, instability mode and failure load, so as to overcome th...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The embodiment of the invention discloses a buckling treatment method for a movable airfoil surface sealing structure, which comprises the following steps of: carrying out stress form engineering analysis on the sealing structure, and dividing the sealing structure and a movable airfoil surface into a plurality of bearing areas; carrying out pre-processing modeling, and establishing a linear buckling model of each bearing area; meshing the plurality of bearing areas, and simulating buckling boundaries or stress states of the bearing areas; applying force generated by nonlinear geometric largedeformation to the multiple bearing areas, and applying forced displacement boundary conditions to the rear edge of the fixed wing and the main structure of the movable wing surface; and carrying outlinear buckling solution on the plurality of bearing areas through the force generated by the applied nonlinear geometric large deformation and the effect of the forced displacement boundary conditionon the plurality of bearing areas to obtain a solution result of the linear buckling model. According to the embodiment of the invention, the problems that the stability of the sealing structure of the movable airfoil cannot be accurately evaluated and calculated and the calculation precision of the analysis of the retroflexion region is low in the existing mode are solved.

Description

technical field [0001] This application relates to but is not limited to the technical field of structural strength analysis, especially a buckling treatment method for a sealing structure of a moving airfoil. Background technique [0002] In view of the limitation of the design space of the aircraft, the sealing structure of the trailing edge of the wing and the moving wing surface is designed as an integrated joint. Caused by forced large deformation, the structural stress level is high and the gradient is large, and the stress boundary is complicated. [0003] Existing engineering algorithms cannot accurately evaluate and calculate the stability of the sealing structure of the moving airfoil; and the sealing structure of the moving airfoil still has a large post-buckling bearing capacity after buckling. Traditional post-buckling analysis generally uses test data as the basis The semi-theoretical and semi-empirical method has low calculation accuracy. Contents of the in...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): G06F30/23G06F30/15G16C60/00
CPCG16C60/00Y02T90/00
Inventor 郑茂亮周银华赵秀峰
Owner XIAN AIRCRAFT DESIGN INST OF AVIATION IND OF CHINA
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com