Subaqueous explosion pressure measurement device based on improved Hopkinson bar

A Hopkinson rod and measuring device technology, applied in the direction of measuring device, measuring blasting force, measuring rapid change, etc., can solve the problems of easy failure, sensor damage, short recording time, etc., and achieves low cost, large measuring range, and easy processing. Effect

Active Publication Date: 2017-05-24
HARBIN ENG UNIV
View PDF6 Cites 24 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although thanks to the continuous progress and innovation of measurement technology, the current free-field pressure measurement technology is relatively mature, but for the measurement of underwater explosion wall pressure, there is still no effective measurement method at home and abroad.
[0003] The current measurement method has the following problems: the current wall pressure measurement is only for the explosion situation in the middle and far field, and the principle of the bubble jet measurement part has not been solved; the wall pressure sensors in foreign countries are based on the piezoresistive and piezoelectric materials. developed wi

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
  • Subaqueous explosion pressure measurement device based on improved Hopkinson bar
  • Subaqueous explosion pressure measurement device based on improved Hopkinson bar
  • Subaqueous explosion pressure measurement device based on improved Hopkinson bar

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0017] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0018] combine Figure 1~6 , an underwater explosion pressure measurement device based on an improved Hopkinson rod, its test environment, specific structure, measurement process and measurement method are as follows:

[0019] 1. Test use environment

[0020] The use environment of the present invention is as Figure 6 As shown, in addition to the main body of the present invention-the underwater explosion pressure measuring device 1 , the test auxiliary system includes a light source 5 , a cement pouring base 2 , a high-speed camera 4 , a small water tank 3 , and a data acquisition system 6 .

[0021] The underwater explosion pressure measuring device 1 is fixed on the cement pouring base 2 by means of bolt connection. The cement pouring base 2 has the characteristics of low cost and firm structure, and provides support for the und...

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 subaqueous explosion pressure measurement device based on an improved Hopkinson bar, and is used for measuring shock wave pressure and bubble jet pressure of subaqueous shortest field explosion. The subaqueous explosion pressure measurement device comprises an energy absorption and recovery device which absorbs all the subaqueous explosion shock wave pressure pulse kinetic energy falling into flying sheets; a shock wave load separation device which is used for transferring all the subaqueous explosion shock wave pressure pulse in the improved Hopkinson bar to the flying sheets so as to realize shock wave load separation; and an improved Hopkinson bar measurement element which is used for amplifying subaqueous explosion shock wave pressure and bubble jet pressure signals and realizing shock wave load separation with the help of the shock wave load separation device so as to finally realize time-space separated measurement of the shock wave pressure and the bubble jet pressure of subaqueous shortest field explosion.

Description

technical field [0001] The invention relates to an underwater explosion pressure measuring device based on an improved Hopkinson rod, which belongs to the field of underwater explosion pressure sensor design. Background technique [0002] Accurate underwater explosion pressure measurement results can provide input load conditions for studying the dynamic response and damage of structures under underwater explosion. However, the demand for pressure sensors under the action of near-field and contact explosions is becoming more and more urgent. Although thanks to the continuous progress and innovation of measurement technology, the current free-field pressure measurement technology is relatively mature, but there is still no effective measurement method for underwater explosion wall pressure measurement at home and abroad. [0003] The current measurement method has the following problems: the current wall pressure measurement is only for the explosion situation in the middle ...

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): G01L5/14G01L23/00
CPCG01L5/14G01L23/00
Inventor 姚熊亮陈莹玉崔雄伟王志凯刘亮涛查帅
Owner HARBIN ENG UNIV
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