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

Testing device for measuring parachute opening characteristics of parachute model in high-speed wind tunnel

A test device, high-speed wind tunnel technology, applied in parachute test, measurement device, parachute and other directions, can solve problems such as damage to the force balance, balance measurement interference, etc., and achieve the effect of safe opening and reliable connection.

Inactive Publication Date: 2018-03-30
INST OF HIGH SPEED AERODYNAMICS OF CHINA AERODYNAMICS RES & DEV CENT
View PDF3 Cites 8 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

When the high-pressure gas is introduced into the parachute compartment, the high-pressure gas will interfere with the measured value of the balance and may damage the force-measuring balance, and the gunpowder has unsafe factors such as self-explosion

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
  • Testing device for measuring parachute opening characteristics of parachute model in high-speed wind tunnel
  • Testing device for measuring parachute opening characteristics of parachute model in high-speed wind tunnel
  • Testing device for measuring parachute opening characteristics of parachute model in high-speed wind tunnel

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] Such as Figure 1-3 As shown, the test device for measuring the parachute model opening characteristics of the high-speed wind tunnel parachute model of the present invention comprises a parachute model support device 1, a balance 2, a rotor 3 and a parachute opening device, and the front end of the balance 2 is connected with the parachute model support device 1, and the balance 2 The rear end is connected with the fixed section 302 of the rotor 3, the parachute model 4 is connected with the rotating section 303 of the rotor 3, and the canopy top of the parachute model 4 is connected with the umbrella cabin blocking cover 5 of the parachute opening device with cotton thread;

[0022] The parachute model supporting device 1 includes a high-speed wind tunnel wall support 101 and an aircraft model 102 that adopts a parachute to decelerate. A balance wire groove is left in the high-speed wind tunnel wall support for balance signal transmission;

[0023] The balance 2 is a ...

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 a testing device for measuring parachute opening characteristics of a parachute model in a high-speed wind tunnel. The testing device comprises a parachute model supporting device, a balance, a rotor and a parachute opening device. When airflow in a high-speed wind tunnel test section reaches the specified flow field condition, a rotating shaft of a stepper motor drives a screw rod to rotate, a nut on the screw rod moves backward and pulls out a parachute bay blocking cap and the parachute model from a parachute bay, the parachute model is opened under the action of high velocity airflow, and in the parachute opening process, a high-speed wind tunnel data collecting system continuously collects the measuring value of the balance. According to the testing device formeasuring the parachute opening characteristics of the parachute model in the high-speed wind tunnel, the parachute opening mode is safe, and parachute opening power basically does not disturb the balance and does not damage the balance; and a rod-type strain balance with an inverted-conical-shaped front cone is adopted as the balance, and accidents of damaging to the balance and the high-speed wind tunnel due to the fact that the balance is disengaged from the parachute model supporting device are prevented.

Description

technical field [0001] The invention belongs to the technical field of parachute model high-speed wind tunnel tests, and in particular relates to a test device for measuring the parachute opening characteristics of a high-speed wind tunnel parachute model. Background technique [0002] As a deceleration stabilizer, the parachute has significant advantages such as small size, light weight, easy to carry and good stabilizing effect, and is widely used in the modern aerospace field. With the increasing number of tasks such as unmanned aerial platform launch, high-speed ejection rescue, spacecraft recovery, and deceleration and landing of alien probes (such as Mars probes), more and more aircraft are flying at high speeds (over 0.3 times the speed of sound). Using a parachute to decelerate, whether the parachute can be opened normally under high-speed conditions, and the parachute opening characteristics such as the resistance coefficient time history of the parachute opening pr...

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): B64D21/00G01M9/06
CPCB64D21/00G01M9/06
Inventor 杨贤文吴军强刘伟师建元黄存栋郭鹏吴继飞徐扬帆易国庆
Owner INST OF HIGH SPEED AERODYNAMICS OF CHINA AERODYNAMICS RES & DEV CENT
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