Missile/rocket pyrovalve reliability index verification test method

A technology of projectile body electric explosion and test method, which is applied in the field of projectile body electric explosion valve reliability index verification test, can solve the problems that the reliability index cannot be verified, shorten the development cycle, reduce the number of test pieces, and facilitate implementation Effect

Active Publication Date: 2014-03-26
BEIJING INST OF ASTRONAUTICAL SYST ENG +1
View PDF3 Cites 7 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The technical problem solved by the present invention is: to overcome the deficiencies of the prior art, to provide a verification test method for the reliability index of the rocket body electric explosion valve, and to solve the problem that the reliability index cannot be verified

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
  • Missile/rocket pyrovalve reliability index verification test method
  • Missile/rocket pyrovalve reliability index verification test method
  • Missile/rocket pyrovalve reliability index verification test method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0014] Combine below figure 1 The present invention is described in detail, and the specific process is as follows:

[0015] (1) According to the flight mission profile of the launch vehicle, the reliability characteristic quantity of the electric explosion valve of the projectile body is determined as the detonation intensity, which obeys the normal distribution;

[0016] (2) According to the preset reliability index threshold, look up the normal distribution table GB / T4086.1, and determine the two-sided tolerance coefficient k 1 、k 2 , The number of samples of electric explosion valves to be tested is n, where n is a positive integer;

[0017] (3) According to the bilateral tolerance coefficient obtained in step 2 and the average value of the initiation intensity of the electric explosion valve to be tested, the upper limit of the initiation intensity and the lower limit of the initiation intensity are obtained

[0018] P B L ...

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

Disclosed is a missile / rocket pyrovalve reliability index verification test method. According to the method, initiation strength of a pyrovalve firing device is used as reliability characteristic; an initiation vessel test fixture is designed; initiation under different initiation strengths is achieved by changing the volume of an initiation vessel. According to theoretical basis of the method, initiation pressure is inversely proportional to the initiation vessel; the initiation strength reliability characteristic complies with normal distribution; tolerance limit coefficients are reversed by a normal distribution table according to reliability indexes to be verified; accordingly, initiation strength required is designed, initiation test is performed, and pyrovalve reliability index estimation is performed according to the test results.

Description

technical field [0001] The invention relates to a reliability verification test method of an electric explosion valve for a launch vehicle / missile weapon, which is used for a reliability verification test of an electric explosion valve for a projectile body. Background technique [0002] The successful launch of carrier rockets and missile weapons has a huge impact. It is necessary to accurately evaluate their reliability level before launch. The electric explosion valve is an important stand-alone launch vehicle, and it is also a typical stand-alone. Its reliability verification method has important reference for other stand-alone products. Significance, it is necessary to accurately verify its reliability. [0003] At present, the relatively mature reliability verification test method is mainly used in electronic products. This method requires a large sample size and a large number of tests, and is not suitable for reliability verification of mechanical products. The elec...

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): G01M13/00
Inventor 孙法国王细波刘春姐马飞孙海鹏李娟娟史刚洪刚
Owner BEIJING INST OF ASTRONAUTICAL SYST ENG
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