Influence of shell structure on dispersing velocity of fuel-air mixture

Ye Wang; Chun Hua Bai; Jian Ping Li

doi:10.3969/j.issn.1000-1093.2017.01.006

Influence of shell structure on dispersing velocity of fuel-air mixture

Ye Wang, Chun Hua Bai^*, Jian Ping Li

^*Corresponding author for this work

School of Mechatronical Engineering

Beijing Institute of Technology

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

6 Citations (Scopus)

Abstract

In order to study the dispersal characteristics for different shell structures, the processes of fuel dispersion and shell breakage driven by central explosive are simulated by LS-DYNA code, and the simulated and experimental results are compared. The boundary expansion state of fuel and the process of shell breakage are obtained. The variation of cutting force with time and the maximum dispersing velocity of different shell structures are analyzed. Results show that the dispersing velocity of fuel could be effectively increased by enhancing the axial tension while satisfying the structural strength and the same radial strength. When axial tension is up to 0.7×10⁶ N, the greater dispersing velocity could be produced by stiffener structure. The maximum dispersing velocity of non-stiffener structure is 285.3 m/s. The maximum dispersing velocity of stiffener structure is 316.3 m/s, that could be increased by 10.8% with the same dose for non-stiffener structure.

Original language	English
Pages (from-to)	43-49
Number of pages	7
Journal	Binggong Xuebao/Acta Armamentarii
Volume	38
Issue number	1
DOIs	https://doi.org/10.3969/j.issn.1000-1093.2017.01.006
Publication status	Published - 1 Jan 2017

Keywords

Dispersal velocity
Non- stiffener structure
Numerical simulation
Ordnance science and technology
Stiffener structure

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10.3969/j.issn.1000-1093.2017.01.006

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title = "Influence of shell structure on dispersing velocity of fuel-air mixture",

abstract = "In order to study the dispersal characteristics for different shell structures, the processes of fuel dispersion and shell breakage driven by central explosive are simulated by LS-DYNA code, and the simulated and experimental results are compared. The boundary expansion state of fuel and the process of shell breakage are obtained. The variation of cutting force with time and the maximum dispersing velocity of different shell structures are analyzed. Results show that the dispersing velocity of fuel could be effectively increased by enhancing the axial tension while satisfying the structural strength and the same radial strength. When axial tension is up to 0.7×106 N, the greater dispersing velocity could be produced by stiffener structure. The maximum dispersing velocity of non-stiffener structure is 285.3 m/s. The maximum dispersing velocity of stiffener structure is 316.3 m/s, that could be increased by 10.8% with the same dose for non-stiffener structure.",

keywords = "Dispersal velocity, Non- stiffener structure, Numerical simulation, Ordnance science and technology, Stiffener structure",

author = "Ye Wang and Bai, {Chun Hua} and Li, {Jian Ping}",

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AU - Bai, Chun Hua

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N2 - In order to study the dispersal characteristics for different shell structures, the processes of fuel dispersion and shell breakage driven by central explosive are simulated by LS-DYNA code, and the simulated and experimental results are compared. The boundary expansion state of fuel and the process of shell breakage are obtained. The variation of cutting force with time and the maximum dispersing velocity of different shell structures are analyzed. Results show that the dispersing velocity of fuel could be effectively increased by enhancing the axial tension while satisfying the structural strength and the same radial strength. When axial tension is up to 0.7×106 N, the greater dispersing velocity could be produced by stiffener structure. The maximum dispersing velocity of non-stiffener structure is 285.3 m/s. The maximum dispersing velocity of stiffener structure is 316.3 m/s, that could be increased by 10.8% with the same dose for non-stiffener structure.

AB - In order to study the dispersal characteristics for different shell structures, the processes of fuel dispersion and shell breakage driven by central explosive are simulated by LS-DYNA code, and the simulated and experimental results are compared. The boundary expansion state of fuel and the process of shell breakage are obtained. The variation of cutting force with time and the maximum dispersing velocity of different shell structures are analyzed. Results show that the dispersing velocity of fuel could be effectively increased by enhancing the axial tension while satisfying the structural strength and the same radial strength. When axial tension is up to 0.7×106 N, the greater dispersing velocity could be produced by stiffener structure. The maximum dispersing velocity of non-stiffener structure is 285.3 m/s. The maximum dispersing velocity of stiffener structure is 316.3 m/s, that could be increased by 10.8% with the same dose for non-stiffener structure.

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Influence of shell structure on dispersing velocity of fuel-air mixture

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Keywords

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