Underwater explosion shock wave equivalent loading experimental device

A technology of loading experiment and underwater explosion, which is applied in the direction of measuring device, impact test, machine/structural component test, etc., can solve the problems of high experimental environment requirements, high risk factor, poor controllability, etc., and achieve strong operability , high safety and simple operation

Inactive Publication Date: 2017-05-24
HARBIN ENG UNIV
View PDF6 Cites 10 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The existing experimental methods focus on pool explosion experiments and equivalent target plate experiments. Due to the shortcomings of traditional explosion experiments such as poor controllability, low efficiency, high cost, high risk factor, and high requirements for the experimental environment, a

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
  • Underwater explosion shock wave equivalent loading experimental device
  • Underwater explosion shock wave equivalent loading experimental device
  • Underwater explosion shock wave equivalent loading experimental device

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0025] The present invention will be further described below with reference to the accompanying drawings.

[0026] combine figure 1 , the experimental device of the present invention includes five main parts: a launch system 1, a speed measurement system 2, a high pressure water tank system 3, a measurement system 4 and a hydraulic system 5. The test method uses the knowledge of reflection and transmission of elastic waves in shock dynamics to indirectly obtain equivalent underwater explosion shock waves by measuring the incident waves and reflected waves on the incident rod in the experimental device.

[0027] combine figure 2 , the launching system includes high-pressure air chamber 1-1, air chamber pressure gauge 1-5, launch tube 1-4, bullet 1-3, trigger device 1-2 and other components, the air chamber pressure gauge is installed on the high-pressure air chamber wall, Connected with the air chamber, the launch tube is closely connected to the high-pressure air chamber, t...

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 an underwater explosion shock wave equivalent loading experimental device which comprises an emission system, a speed measurement system, a high pressure water tank system, a hydraulic system and a measurement system. A conventional method for directly measuring water pressure in a water tank through a piezoelectric sensor is changed, and an equivalent explosion shock wave is indirectly obtained according to reflection and transmission knowledge of elastic waves in the shock dynamics, so that the experimental device is simplified, a test method is optimized, and the measurement precision is improved. According to the device, bullets strike the high pressure water tank system, and kinetic energy of the bullets is converted into energy of the shock wave in the high pressure water tank. The underwater explosion shock wave equivalent loading experimental device can obtain far field explosion shock waves under various water depth environments under a condition of not using explosives and complete response analysis of the underwater explosion shock dynamics for various materials, and has the advantages of high measurement precision, high safety, low experimental cost, simple operation and the like.

Description

technical field [0001] The invention relates to a dimensional elastic wave and impact dynamics experimental device, in particular to an underwater explosion shock wave equivalent loading experimental device. Background technique [0002] Marine engineering structures usually work in harsh environments such as seawater corrosion, high and low temperature, and transient impact loads, and the main impact loads they bear include collisions, three-dimensional fluid loads, etc. In addition, the ship structure also faces the threat of weapon strikes, and must deal with explosive loads from the surface and underwater. At present, there are few experimental studies on the action of underwater explosion shock waves on marine structures. Instead, finite element simulation software such as ABAQUS, LS-DYNA, and AUTODYN are mainly used for simulation research. Due to the lack of necessary experimental verification, it is difficult to prove that software simulation accuracy. Therefore, i...

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): G01M7/08G01N3/313
CPCG01M7/08G01N3/313
Inventor 曲嘉庞跃钊刘洋杨丽红高申煣于国财
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