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

Airfoil ground resonance test wind power loading device

A wind-loaded, ground-based technology, applied in aircraft component testing and other directions, to achieve the effect of improving test efficiency, low additional cost, and meeting engineering test requirements

Active Publication Date: 2017-12-29
XIAN AIRCRAFT DESIGN INST OF AVIATION IND OF CHINA
View PDF5 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a kind of wing ground resonance test wind force loading device, to accurately simulate the deformation of various typical states of the aircraft, to solve or at least alleviate at least one problem existing in the background technology

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
  • Airfoil ground resonance test wind power loading device
  • Airfoil ground resonance test wind power loading device
  • Airfoil ground resonance test wind power loading device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0026] In order to make the objectives, technical solutions and advantages of the present invention clearer, the technical solutions in the embodiments of the present invention will be described in more detail below in conjunction with the drawings in the embodiments of the present invention. In the drawings, the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The described embodiments are some, but not all, embodiments of the invention. The embodiments described below by referring to the figures are exemplary and are intended to explain the present invention and should not be construed as limiting the present invention. 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. Embodiments of the present invention will be described in detail below ...

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 invention discloses an airfoil ground resonance test wind power loading device and relates to the technical field of aircraft aeroelasticity. The airfoil ground resonance test wind power loading device comprises a pneumatic load flow dividing dredging structure (2) and a pneumatic loading mechanism (3) used for applying a pneumatic load to the pneumatic load flow dividing dredging structure (2). The pneumatic load flow dividing dredging structure (2) is arranged to be of a cone cylinder structure; the small end of the cone cylinder structure is provided with a flow baffle plate (21) provided with flow baffle holes (211); and the pneumatic load flow dividing dredging structure (2) is mounted in the pneumatic pressure center position of an airfoil (1) through the flow baffle plate (21). The airfoil ground resonance test wind power loading device has the advantages that the airfoil ground resonance test wind power loading device can adjust the loading position, the loading angle and the magnitude of the applied load along with deformation of the airfoil, thus deformation of various typical states of an airplane is advantageously simulated, the operation flow is simple, and the test efficiency and the reliability of results can be greatly improved.

Description

technical field [0001] The invention relates to the technical field of aircraft aeroelasticity, in particular to a wind force loading device for an aircraft wing ground resonance test. Background technique [0002] In the conventional ground resonance test, the deformation of the free end of the wing is basically not considered, and there is no mature deformation loading method for the wing. However, for large-aspect-ratio and highly-flexible aircraft, the deformation of the wingtip in the cruising state often exceeds 20% of its half-span, and the nonlinear influence brought by the deformation of the wingtip is already very large; During the test, the large deformation of the aircraft in the air was simulated in advance to find out the inherent characteristics of the aircraft in the state of large deformation to ensure flight safety. Therefore, it is necessary to design a set of wing large deformation loading methods suitable for ground resonance tests. 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): B64F5/60
CPCB64F5/60
Inventor 胡志勇冯军付强王培勇柴睿
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