Eureka AIR delivers breakthrough ideas for toughest innovation challenges, trusted by R&D personnel around the world.

Flutter model center of gravity positioner

A technology of positioning device and flutter model, which is applied in the field of aerial surveying, can solve the problems of large error and dispersion of operational measurement values, and achieve the effect of small error and dispersion and ensuring measurement stability.

Active Publication Date: 2013-05-08
XIAN AIRCRAFT DESIGN INST OF AVIATION IND OF CHINA
View PDF5 Cites 1 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This measurement method has a large error and dispersion of operating measurement values

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 center of gravity positioner
  • Flutter model center of gravity positioner
  • Flutter model center of gravity positioner

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0014] Below the utility model is described in further detail. see Figure 1 to Figure 4 , a center of gravity positioning device for a flutter model, characterized in that it consists of a load-bearing frame, two spirit levels 7, a center of gravity positioning assembly 8, two model limit assemblies 9 and a center of gravity positioning rod 10;

[0015] (1) The load-bearing frame is composed of a rectangular bottom plate 1, a top plate 2 with the same size as the rectangular bottom plate 1, four uprights 3 and four adjustable feet 4, the four uprights 3 are parallel to each other, and the lower ends of the four uprights 3 are respectively aligned with the rectangular The four corners of the bottom plate 1 are connected as a whole by bolts or welding, the upper ends of the four columns 3 are respectively connected with the four corners of the top plate 2 by bolts or welding as a whole, the hook is installed in the center of the top plate, and the four adjustable feet 4 are ins...

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 belongs to aviation measurement technology, and relates to a flutter model center of gravity positioner. The flutter model center of gravity positioner is characterized by comprising a bearing framework, two level meters (7), a center of gravity positioning assembly (8), two model spacing assemblies (9) and a center of gravity locating lever (10). The flutter model center of gravitypositioner has the characteristics of a small error of a measured value and small discreteness. By utilizing a static balance principle and a model spacing device to restricting degree of freedom of model rotation, by utilizing the center of gravity locating lever to substitute a plumb, measurement stability is effectively guaranteed.

Description

technical field [0001] The invention belongs to the aerial measurement technology, and relates to a center-of-gravity positioning device of a flutter model. Background technique [0002] Center of gravity position data is very important to the flutter model, which is directly related to the accuracy of simulating the real aircraft. However, there has not been a set of equipment for professionally measuring the position of the center of gravity of flutter models for a long time. At present, we can only rely on the simple "suspension method" to measure the center of gravity of the flutter model. Hang the flutter model at a single point with a thin line. When the model is stationary, hang a thin line of a hanging weight at the hanging point. The relative center of gravity position line of the model is obtained by using the principle of collinearity. Change the position of the lifting point and repeat the above steps to obtain the second relative center of gravity position lin...

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): G01M1/12
Inventor 胡志勇魏巍张庚庚
Owner XIAN AIRCRAFT DESIGN INST OF AVIATION IND OF CHINA
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
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