Optimization of Ejection Characteristics for Twice-Detonating Device in Double-Event Fuel-Air Explosive with High Drop Velocity

Binfeng Sun; Chunhua Bai; Caihui Zhao; Jianping Li; Xiaoliang Jia

doi:10.3390/fire6070250

Optimization of Ejection Characteristics for Twice-Detonating Device in Double-Event Fuel-Air Explosive with High Drop Velocity

Binfeng Sun, Chunhua Bai, Caihui Zhao, Jianping Li^*, Xiaoliang Jia

^*Corresponding author for this work

School of Mechatronical Engineering

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

1 Citation (Scopus)

Abstract

The key to ensure the reliability of the cloud detonation in high-drop-velocity double-event fuel-air explosives (DEFAEs) is to cause the twice-detonating device (TDD) to detonate in the dispersed fuel. Here, an ejection mechanism for a TDD is designed and the ejection process is analyzed through an outfield ejection test. Accordingly, a simulation model for the description of the ejection process is established and verified to be reliable by comparing it with the experimental results. Based on the model, two extended ensamples for design optimization of the ejection mechanism are developed. The factors influencing the ejection characteristics of the TDD are further analyzed, including the ejection charge mass and screw (for baffle fixing) parameter. The research carried out here provides theoretical and experimental support for the optimal design of the ejection mechanism in high-drop-velocity DEFAEs.

Original language	English
Article number	250
Journal	Fire
Volume	6
Issue number	7
DOIs	https://doi.org/10.3390/fire6070250
Publication status	Published - Jul 2023

Keywords

double-event fuel-air explosive (DEFAE)
ejection charge mass
ejection mechanism
ejection velocity
screw parameter
twice-detonating device (TDD)

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10.3390/fire6070250

Cite this

@article{22ef210ce55f40d0b5e91ffaa95c5a70,

title = "Optimization of Ejection Characteristics for Twice-Detonating Device in Double-Event Fuel-Air Explosive with High Drop Velocity",

abstract = "The key to ensure the reliability of the cloud detonation in high-drop-velocity double-event fuel-air explosives (DEFAEs) is to cause the twice-detonating device (TDD) to detonate in the dispersed fuel. Here, an ejection mechanism for a TDD is designed and the ejection process is analyzed through an outfield ejection test. Accordingly, a simulation model for the description of the ejection process is established and verified to be reliable by comparing it with the experimental results. Based on the model, two extended ensamples for design optimization of the ejection mechanism are developed. The factors influencing the ejection characteristics of the TDD are further analyzed, including the ejection charge mass and screw (for baffle fixing) parameter. The research carried out here provides theoretical and experimental support for the optimal design of the ejection mechanism in high-drop-velocity DEFAEs.",

keywords = "double-event fuel-air explosive (DEFAE), ejection charge mass, ejection mechanism, ejection velocity, screw parameter, twice-detonating device (TDD)",

author = "Binfeng Sun and Chunhua Bai and Caihui Zhao and Jianping Li and Xiaoliang Jia",

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year = "2023",

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doi = "10.3390/fire6070250",

language = "English",

volume = "6",

journal = "Fire",

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T1 - Optimization of Ejection Characteristics for Twice-Detonating Device in Double-Event Fuel-Air Explosive with High Drop Velocity

AU - Sun, Binfeng

AU - Bai, Chunhua

AU - Zhao, Caihui

AU - Li, Jianping

AU - Jia, Xiaoliang

PY - 2023/7

Y1 - 2023/7

N2 - The key to ensure the reliability of the cloud detonation in high-drop-velocity double-event fuel-air explosives (DEFAEs) is to cause the twice-detonating device (TDD) to detonate in the dispersed fuel. Here, an ejection mechanism for a TDD is designed and the ejection process is analyzed through an outfield ejection test. Accordingly, a simulation model for the description of the ejection process is established and verified to be reliable by comparing it with the experimental results. Based on the model, two extended ensamples for design optimization of the ejection mechanism are developed. The factors influencing the ejection characteristics of the TDD are further analyzed, including the ejection charge mass and screw (for baffle fixing) parameter. The research carried out here provides theoretical and experimental support for the optimal design of the ejection mechanism in high-drop-velocity DEFAEs.

AB - The key to ensure the reliability of the cloud detonation in high-drop-velocity double-event fuel-air explosives (DEFAEs) is to cause the twice-detonating device (TDD) to detonate in the dispersed fuel. Here, an ejection mechanism for a TDD is designed and the ejection process is analyzed through an outfield ejection test. Accordingly, a simulation model for the description of the ejection process is established and verified to be reliable by comparing it with the experimental results. Based on the model, two extended ensamples for design optimization of the ejection mechanism are developed. The factors influencing the ejection characteristics of the TDD are further analyzed, including the ejection charge mass and screw (for baffle fixing) parameter. The research carried out here provides theoretical and experimental support for the optimal design of the ejection mechanism in high-drop-velocity DEFAEs.

KW - double-event fuel-air explosive (DEFAE)

KW - ejection charge mass

KW - ejection mechanism

KW - ejection velocity

KW - screw parameter

KW - twice-detonating device (TDD)

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DO - 10.3390/fire6070250

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SN - 2571-6255

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ER -

Optimization of Ejection Characteristics for Twice-Detonating Device in Double-Event Fuel-Air Explosive with High Drop Velocity

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Keywords

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