Full-size airplane structure test restraint system

A full-scale aircraft and structural testing technology, which is applied to aircraft parts, ground equipment, transportation and packaging, etc., can solve the problems that affect the accuracy of test results and large deformation of landing gear, so as to save test cost, reduce impact, and install convenient effect

Active Publication Date: 2016-06-08
CHINA AIRPLANT STRENGTH RES INST
View PDF4 Cites 15 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For the aircraft with less rigidity in the connection area between the landing gear and the fuselage, the deformation of the landing gear is relatively large. figure 1 Due to the small distance between the connection point of the dummy wheel of the landing gear and the connection point of the lever end, the additional constraints have a significant impact, and the whole machine is in a statically indefinite constraint state, which affects the accuracy of the test results

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
  • Full-size airplane structure test restraint system
  • Full-size airplane structure test restraint system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0017] See attached Figures 1 to 2 , the full-scale aircraft structure test restraint system of the present invention is characterized in that, comprises restraint beam 2, top connection device 3, support lever 4, upward restraint device 5, upward restraint sensor 6, downward restraint device 7, downward restraint sensor 8 and ground fixed equipment 9.

[0018] When the restraint system of the aircraft structure test of the present invention is installed, the restraint beam 2 located above is connected with the support lever 4 through the top connecting device 3 to provide a fulcrum for the vertical restraint of the landing gear; one end of the support lever 4 passes through the upward restraint device 5 with an adjustable stroke It is connected with the ground fixed equipment 9, and the other end is connected with the upper end of the landing gear dummy wheel 1 through the upward restraint force sensor 6 to form a vertical upward constraint; the lower end of the landing gear...

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 provides a full-size airplane structure test restraint system. The full-size airplane structure test restraint system is characterized by comprising a restrained beam (2), a top end connecting device (3), a supporting lever (4), an upward restraint device (5), an upward restraint sensor (6), a downward restraint device (7), a downward restraint sensor (8) and ground fixing devices (9); the restrained beam (2) located at the upper portion is in hanging connection with the supporting lever (4) through the top end connecting device (3); one end of the supporting lever (4) is connected with one ground fixing device (9) through the stroke-adjustable upward restraint device (5), the other end of the supporting lever (4) is connected with the upper end of an undercarriage fake wheel (1) through the upward restraint sensor (6), and the vertical upward restraint situation is formed; and the lower end of the undercarriage fake wheel (1) is connected with the other ground fixing device (9) sequentially through the downward restraint sensor (8) and the stroke-adjustable downward restraint device (7), and the vertical downward restraint situation is formed.

Description

technical field [0001] The invention belongs to the aircraft ground strength test technology, and relates to a full-scale aircraft structure test restraint system. Background technique [0002] In the static / fatigue test of the full-scale aircraft structure, the vertical three-point restraint is generally realized through the front landing gear, left and right main landing gear, and two lateral restraints and one directional restraint or one lateral restraint are supplemented at the landing gear. Two course constraints are constrained to meet the requirements of statically indeterminate constraints for the whole machine. Among them, the vertical restraint of the landing gear is usually achieved by lifting the dummy wheel through the column-crowbar device and using the connecting piece to ground the dummy wheel, such as figure 1 . [0003] During the test, the landing gear will produce lateral or directional deformation when subjected to passive loads, and correspondingly g...

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 Applications(China)
IPC IPC(8): B64F5/00
Inventor 贺谦杜星崔明韩凯谭巧银高建
Owner CHINA AIRPLANT STRENGTH RES INST
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
Try Eureka
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap