Optimal Falling Track Design for Twice detonating Fuze of Double event  Fuel air Explosive with High Speed

Congliang Ye; Qi Zhang

doi:10.14429/dsj.70.14868

Congliang Ye State Key Laboratory of Explosion Science and Technology, Beijing Institute of Technology, Beijing - 100 081 https://orcid.org/0000-0001-7746-3175
Qi Zhang State Key Laboratory of Explosion Science and Technology, Beijing Institute of Technology, Beijing - 100 081 https://orcid.org/0000-0003-4042-5698

DOI: https://doi.org/10.14429/dsj.70.14868

Keywords: Double-event fuel-air explosive, Twice-detonating fuze, Initiation, Motion trajectory, MATLAB, Graphical user interface

Abstract

To prevent the initiation failure caused by the uncontrolled fuze and improve the weapon reliability in the high-speed double-event fuel-air explosive (DEFAE) application, it is necessary to study the TDF motion trajectory and set up a twice-detonating fuze (TDF) design system. Hence, a novel approach of realising the fixed single-point center initiation by TDF within the fuel air cloud is proposed. Accordingly, a computational model for the TDF motion state with the nonlinear mechanics analysis is built due to the expensive and difficult full-scale experiment. Moreover, the TDF guidance design system is programmed using MATLAB with the equations of mechanical equilibrium. In addition, by this system, influences of various input parameters on the TDF motion trajectory are studied in detail singly. Conclusively, the result of a certain TDF example indicates that this paper provides an economical idea for the TDF design, and the developed graphical user interface of high-efficiency for the weapon designers to facilitate the high-speed DEFAE missile development.

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