Research on Output Performance of Al/KClO4 Igniter in Closed Bomb

Xiao Ai Liang; Jian Xin Nie; Shuai Wang; Zhi Feng Zhang; Hai Jun Zhang

doi:10.3969/j.issn.1000-1093.2017.08.008

Research on Output Performance of Al/KClO₄ Igniter in Closed Bomb

Xiao Ai Liang, Jian Xin Nie^*, Shuai Wang, Zhi Feng Zhang, Hai Jun Zhang

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

9 Citations (Scopus)

Abstract

The output performance of Al/KClO₄ igniter is a key parameter for the overall design of pyrotechnically actuated separation device. In order to describe the output performance of Al/KClO₄ igniter more accurately, an improved interior ballistics analysis model of Al/KClO₄ is established by modifying the hypotheses of classical interior ballistics equations and introducing the correction coefficient of powder force. The Matlab numerical algorithm is written to calculate the pressure peak, pressure rise time and impulse per unit area of Al/KClO₄ igniter in closed bomb. The changes of these parameters with charge mass and cavity volume are analyzed. And the calculated results are in good agreement with the experimental results. The results show that the pressure peak of Al/KClO₄ igniter increases with the increase in charge mass, and decreases with the increase in cavity volume. In a small volume (<5 mL), the cavity volume is increased by two times, and the peak pressure is decreased by about 40%.

Original language	English
Pages (from-to)	1513-1519
Number of pages	7
Journal	Binggong Xuebao/Acta Armamentarii
Volume	38
Issue number	8
DOIs	https://doi.org/10.3969/j.issn.1000-1093.2017.08.008
Publication status	Published - 1 Aug 2017
Externally published	Yes

Keywords

Al/KClO
Igniter
Ordnance science and technology
Pressure-time curve
Pyrotechnically actuated separation device
Simulation calculation

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10.3969/j.issn.1000-1093.2017.08.008

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title = "Research on Output Performance of Al/KClO4 Igniter in Closed Bomb",

abstract = "The output performance of Al/KClO4 igniter is a key parameter for the overall design of pyrotechnically actuated separation device. In order to describe the output performance of Al/KClO4 igniter more accurately, an improved interior ballistics analysis model of Al/KClO4 is established by modifying the hypotheses of classical interior ballistics equations and introducing the correction coefficient of powder force. The Matlab numerical algorithm is written to calculate the pressure peak, pressure rise time and impulse per unit area of Al/KClO4 igniter in closed bomb. The changes of these parameters with charge mass and cavity volume are analyzed. And the calculated results are in good agreement with the experimental results. The results show that the pressure peak of Al/KClO4 igniter increases with the increase in charge mass, and decreases with the increase in cavity volume. In a small volume (<5 mL), the cavity volume is increased by two times, and the peak pressure is decreased by about 40%.",

keywords = "Al/KClO, Igniter, Ordnance science and technology, Pressure-time curve, Pyrotechnically actuated separation device, Simulation calculation",

author = "Liang, {Xiao Ai} and Nie, {Jian Xin} and Shuai Wang and Zhang, {Zhi Feng} and Zhang, {Hai Jun}",

year = "2017",

month = aug,

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doi = "10.3969/j.issn.1000-1093.2017.08.008",

language = "English",

volume = "38",

pages = "1513--1519",

journal = "Binggong Xuebao/Acta Armamentarii",

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AU - Liang, Xiao Ai

AU - Nie, Jian Xin

AU - Wang, Shuai

AU - Zhang, Zhi Feng

AU - Zhang, Hai Jun

PY - 2017/8/1

Y1 - 2017/8/1

N2 - The output performance of Al/KClO4 igniter is a key parameter for the overall design of pyrotechnically actuated separation device. In order to describe the output performance of Al/KClO4 igniter more accurately, an improved interior ballistics analysis model of Al/KClO4 is established by modifying the hypotheses of classical interior ballistics equations and introducing the correction coefficient of powder force. The Matlab numerical algorithm is written to calculate the pressure peak, pressure rise time and impulse per unit area of Al/KClO4 igniter in closed bomb. The changes of these parameters with charge mass and cavity volume are analyzed. And the calculated results are in good agreement with the experimental results. The results show that the pressure peak of Al/KClO4 igniter increases with the increase in charge mass, and decreases with the increase in cavity volume. In a small volume (<5 mL), the cavity volume is increased by two times, and the peak pressure is decreased by about 40%.

AB - The output performance of Al/KClO4 igniter is a key parameter for the overall design of pyrotechnically actuated separation device. In order to describe the output performance of Al/KClO4 igniter more accurately, an improved interior ballistics analysis model of Al/KClO4 is established by modifying the hypotheses of classical interior ballistics equations and introducing the correction coefficient of powder force. The Matlab numerical algorithm is written to calculate the pressure peak, pressure rise time and impulse per unit area of Al/KClO4 igniter in closed bomb. The changes of these parameters with charge mass and cavity volume are analyzed. And the calculated results are in good agreement with the experimental results. The results show that the pressure peak of Al/KClO4 igniter increases with the increase in charge mass, and decreases with the increase in cavity volume. In a small volume (<5 mL), the cavity volume is increased by two times, and the peak pressure is decreased by about 40%.

KW - Al/KClO

KW - Igniter

KW - Ordnance science and technology

KW - Pressure-time curve

KW - Pyrotechnically actuated separation device

KW - Simulation calculation

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Research on Output Performance of Al/KClO₄ Igniter in Closed Bomb

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