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Journal of Projectiles, Rockets, Missiles and Guidance >

2012 , Vol. 32 >Issue 6: 103 - 105,111

DOI: https://doi.org/10.15892/j.cnki.djzdxb.2012.06.003

ROCKETS TECHNOLOGY

Liner's Semi-cured State Determination ofSolid Rocket Propellant Based on Infrared Technology

  • ZHANG Yujuan ,
  • WANG Zhaoba ,
  • YANG Yajun
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  • National Key Laboratory for Electronic Measurement Technology, North University of China, Taiyuan 030051, China

Received date: 2012-03-21

  Online published: 2025-05-29

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Abstract

In this paper, a method was proposed to characterize liner's semi-cured state of solid propellant rocket engine. Firstly, spectra were got by FTIR. Secondly, empirical mode decomposition and threshold processing were applied to denoise spectra. Thirdly, proper characteristic group and reference group were selected, then results were got by calculating the light-transmission coefficient changing discipline of characteristic group and reference group in liner curing process. The results display that this method can distinguish liner's semicured state effectively, the liner is semi-cured when the light-transmission coefficient is 1.42~1.54 at cure temperature of 20°C, but it is semi-cured when coefficient is 2.32~2.41 at cure temperature of 60°C.

Key words： infrared spectra; semi-cured state; EMD; liner

Cite this article

ZHANG Yujuan , WANG Zhaoba , YANG Yajun . Liner's Semi-cured State Determination ofSolid Rocket Propellant Based on Infrared Technology[J]. Journal of Projectiles, Rockets, Missiles and Guidance, 2012 , 32(6) : 103 -105,111 . DOI: 10.15892/j.cnki.djzdxb.2012.06.003

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