Hopkinson rod low-temperature experiment device

A technology of Hopkinson rods and experimental devices, applied in the direction of measuring devices, instruments, scientific instruments, etc., can solve the problems of narrow application range, inconvenient operation, complex structure, etc., and achieve good versatility, convenient operation, and precise temperature control Effect

Inactive Publication Date: 2015-09-16
CIVIL AVIATION FLIGHT UNIV OF CHINA
View PDF10 Cites 6 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The purpose of the present invention is to solve the technical problems of narrow application range, complex structure, high cost and inconvenient operation in the existing experimental device for Hopkinson rod, and to provide a Hopkinson rod low temperature experimental device

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
  • Hopkinson rod low-temperature experiment device
  • Hopkinson rod low-temperature experiment device
  • Hopkinson rod low-temperature experiment device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0030] Such as Figure 1~6 As shown, a Hopkinson rod low temperature experimental device in this embodiment includes a nitrogen generating device, a heat preservation experimental device and a nitrogen conduit 5, and the nitrogen generating device includes a liquid nitrogen tank 1, a first heating wire 3 and a sealed Plug 4, the sealing plug 4 is arranged on the tank mouth of the liquid nitrogen tank 1, and the first heating wire 3 passes through the sealing plug 4 and is arranged in the liquid nitrogen tank 1; 10. The transmission rod 11 and two fixing rings 17, 18, the left and right sides of the heat preservation shell 9 are respectively provided with a fixed ring interface 13, and an observation window 14 is arranged on the front surface of the heat preservation shell 9, and the observation The window 14 is composed of double-layer glass, the inner layer is optical glass, and the outer layer is electrothermal glass; a nitrogen conduit inlet is provided on the rear panel of...

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 belongs to the technical field of a Hopkinson rod experiment device and particularly relates to a Hopkinson rod low-temperature experiment device, mainly solving the technical problems that an existing experiment device used for a Hopkinson rod has a narrow applicable range, a complicated structure and high cost, and is inconvenient to operate. According to the technical scheme provided by the invention, the Hopkinson rod low-temperature experiment device comprises a nitrogen gas generation device, a heat preservation experiment device and a nitrogen gas guide pipe; one end of the nitrogen gas guide pipe penetrates through a sealing plug of the nitrogen gas generation device so that the end port of the nitrogen gas generation device is located above liquid nitrogen in a liquid nitrogen tank of the nitrogen gas generation device; and the other end of the nitrogen gas guide pipe penetrates through the inlet of the nitrogen gas inlet of a heat preservation shell of the heat preservation experiment device so that the end port of the nitrogen gas guide pipe is located in an inner cavity of the heat preservation shell. The Hopkinson rod low-temperature experiment device has the advantages of wide applicable range, simple structure, low cost and convenience for operation.

Description

technical field [0001] The invention belongs to the technical field of Hopkinson rod experimental devices, and in particular relates to a Hopkinson rod low temperature experimental device. Background technique [0002] The Split Hopkinson Bar (SHPB) impact test system is widely used in the field of impact dynamics due to its many advantages. Its ingenuity lies in decoupling the wave propagation effect and the material strain rate effect. , can accurately measure the strain rate effect of the specimen material. Because the SHPB experimental device has the advantages of simple structure, convenient operation, delicate measurement method, and easy control of the loading waveform; at the same time, the range of strain rate involved in the SHPB experimental method is also of concern to people, and it is also a general engineering material flow stress-strain rate sensitivity change. A more dramatic range. Therefore, now SHPB has become the most commonly used and most effective e...

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): G01N3/02
Inventor 王永虎杨军王红梅
Owner CIVIL AVIATION FLIGHT UNIV OF CHINA
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