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

Testing method for shock wave attenuation rate of explosive-removal personal protective device

A test method, shock wave technology, applied in the direction of shock test, machine/structural component test, measuring device, etc., can solve the difficulty in the protection ability of EOD clothing against shock wave overpressure and shock acceleration, and there is no specified shock wave overpressure test method, Issues such as EOD personal protective equipment were not publicly promulgated to achieve the effect of deducting background noise

Inactive Publication Date: 2015-04-22
THE FIRST RES INST OF MIN OF PUBLIC SECURITY +1
View PDF5 Cites 7 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, due to the difficulty in evaluating the protection ability of EOD suits against shock wave overpressure and shock acceleration, there is currently only the Public Safety Bomb Suit Standard (Public Safety Bomb Suit Standard.NIJ standard-0117.00.00. U.S.Department of Justice, Office of Justice Programs, National Institute of Justice. 2012.) puts forward some evaluation standards for the protective performance of EOD clothing, which involves the explosion-proof integrity test of EOD personal protective equipment, but there is no provision for For the test method of shock wave overpressure, other countries and institutions have not publicly promulgated test standards for testing the shock wave performance of EOD personal protective equipment

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 method for shock wave attenuation rate of explosive-removal personal protective device
  • Testing method for shock wave attenuation rate of explosive-removal personal protective device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0027] The present invention will be described in detail below in conjunction with the accompanying drawings and embodiments. Such as figure 1 , figure 2 Shown, one of method of the present invention comprises the following steps:

[0028] (1) The mannequin is put on EOD personal protective equipment, and a free field pressure sensor or wall pressure sensor is installed outside the EOD personal protective equipment to obtain the external shock wave overpressure value P0 when the explosion occurs;

[0029] (2) Install a free-field pressure sensor or a wall pressure sensor inside the mannequin to obtain the internal shock wave overpressure value P1 when the explosion occurs. The formula for calculating the shock wave overpressure attenuation rate D1 of the EOD personal protective equipment is as follows:

[0030] D1=(P1-P0) / P0×100%.

[0031] Method two of the present invention comprises the following steps:

[0032] (1) The mannequin does not wear EOD personal protective eq...

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 method for the shock wave attenuation rate of an explosive-removal personal protective device. The testing method comprises the following steps that (1) the explosive-removal personal protective device is put on a human body model, a free field pressure senor or a wall face pressure sensor is installed on the outer portion of the explosive-removal personal protective device, and the external shock wave overpressure value P0 when an explosion occurs is obtained; (2) a free field pressure senor or a wall face pressure sensor is installed in the human body model, the internal shock wave overpressure value P1 when the explosion occurs is obtained, and thus calculation formula of the shock wave overpressure attenuation rate of the explosive-removal personal protective device is D1=(P1-P0) / P0*100%. The testing method has the advantages that references can be provided for quantizing the shock wave resisting performance test of the explosive-removal personal protective device, and a reliable testing means can be provided for the comparison of two protective devices. The testing method further has the advantages that background noise is removed, and the maximum value of a curve is found.

Description

technical field [0001] The invention relates to a method for testing the shock wave attenuation rate of explosive-discharge personal protective equipment, and belongs to the technical field of performance evaluation of personal protective equipment. Background technique [0002] At present, the cost of casualties caused by explosions is huge, and thousands of people are injured and disabled in explosions every year. In view of the fact that there is no economical and reliable mechanical method to detonate explosives, the public security front-line detonator still needs to shoulder the important task of eliminating the threat of explosion and protecting the safety of the public for a certain period of time. In order to reduce casualties during the EOD process and resist accidental explosions during the EOD process, people have designed EOD personal protective equipment such as EOD suits, explosion search suits, etc., which can protect against explosion fragments, shock wave o...

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): G01M7/08
Inventor 唐剑兰王远途李剑石凌飞韩忠华王颖王誉天倪君杰刘海芳赵洋
Owner THE FIRST RES INST OF MIN OF PUBLIC SECURITY
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