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

Flutter Model Hookup

A flutter model and connecting device technology, which is used in measuring devices, testing of machine/structural components, instruments, etc., can solve the problem of not being applicable to large aspect ratios and higher connecting strength requirements of flexible rudder surfaces, and achieve structural and connection. The form is simple, the use of space is reduced, and the effect of avoiding shape damage

Active Publication Date: 2020-11-27
COMAC +1
View PDF8 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, although this solution occupies less space, is convenient to obtain materials, and has a relatively small structural size, it is not suitable for the higher connection strength requirements of flexible rudder surfaces with large aspect ratios.

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
  • Flutter Model Hookup
  • Flutter Model Hookup
  • Flutter Model Hookup

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0024] It should be noted that the drawings referred to are not all drawn to scale but may be exaggerated to illustrate aspects of the invention and in this respect the drawings should not be construed as limiting.

[0025] The flutter model connection device according to the present invention is mainly used for connecting the main airfoil 1 and the control surface 2 of the aircraft, and is mainly used in the wind tunnel test of the flutter model. Usually, in the test, the rudder surface 2 will pivot around an axis relative to the main airfoil, therefore, no matter whether the connecting device of the flutter model includes a hinge structure, there is always a theoretical pivot axis in the flutter model. The theoretical position of such rudder surface pivot axis 4 is figure 2 clearly shown in.

[0026] In the present invention, the flutter model connection device is advantageously configured without a hinge and includes the structure of the leaf spring 3 . In other words, t...

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 relates to a flutter model connecting device which is used for connecting a main airfoil in the flutter model with a rudder surface. The flutter model connecting device forms a no-hingestructure and is composed of a plurality of plate springs. The flutter model connecting device is configured in the extending direction of the main airfoil of the model. Two ends of the body part of the plate spring are respectively connected with the main airfoil and the rudder surface. The flutter model connecting device can realize simulation of rudder surface control rigidity and rudder surface rotation model, and furthermore can obtain linear control rigidity, higher rudder surface connecting strength, a relatively simple spring cross section form and a connecting designing form.

Description

technical field [0001] The invention relates to the field of aircraft design, in particular to an aircraft wing (especially the main wing surface and rudder surface of the aircraft) flutter wind tunnel test process. More specifically, the present invention relates to a flutter model connecting device, which is mainly used for connecting the model main airfoil and the model rudder surface in the aircraft flutter model. Background technique [0002] In the technical field of modeling the main airfoil, the rudder surface and the connection relationship between them for wind tunnel testing, the influence of the control stiffness of the rudder surface on the flutter characteristics is a key content of the research, and sometimes the rudder surface is also considered Effect of deflection on flutter characteristics. Therefore, it is necessary to design a test model suitable for flutter wind tunnel tests according to the realizable form of the structure. The model should better sim...

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
Patent Type & Authority Patents(China)
IPC IPC(8): G01M9/04G01M9/08
CPCG01M9/04G01M9/08
Inventor 孙亚军张婷婷周铮张苏华陈千一范石磊
Owner COMAC
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