Anti-migration of NG by using EPDM insulating materials coated with reduced graphene oxide
Available online 18 October 2024
The migration of nitroglycerin (NG) has always been the important issue on ensuring structural integrity and operational reliability of Nitrate Ester Plasticized Polyether (NEPE) propellant/Hydroxyl-terminated...
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Experimental study on the buckling of composite cylinders with reinforced circular hole under hydrostatic pressure
Available online 10 October 2024
In this paper, a type of reinforcing structure for composite shell with single and through hole is presented. The experimental tests for the composite shells without hole, with single hole and reinforced...
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Multi-Objective optimization for stable and efficient cargo transportation of partial space elevator
Available online 10 October 2024
This paper proposed a new libration decoupling analytical speed function (LD-ASF) in lieu of the classic analytical speed function to control the climber’s speed along a partial space elevator to improve...
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An efficient and accurate numerical method for simulating close-range blast loads of cylindrical charges based on neural network
Available online 10 October 2024
To address the problems of low accuracy by the CONWEP model and poor efficiency by the Coupled Eulerian-Lagrangian (CEL) method in predicting close-range air blast loads of cylindrical charges, a neural...
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Energy release characteristics of PTFE/Al/TiH2 reactive jet with different TiH2 content
September 2024
Titanium hydride (TiH2), a promising high-energy additive, is doped into PTFE/Al to optimize the energy output structure of the reactive jet and strive for better aftereffect damage ability to the target....
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Robust fixed-time flight controller for a dual-system convertible UAV in the cruise mode
September 2024
This paper investigates the attitude tracking control problem for the cruise mode of a dual-system convertible unmanned aerial vehicle (UAV) in the presence of parameter uncertainties, unmodeled uncertainties...
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Investigation of system parameters towards safer impact based shock-to-detonation transition in a novel laser driven flyer plate prototype
September 2024
Laser driven flyer plate technology offers improved safety and reliability for detonation of explosives in industrial applications ranging from mining and stone quarrying to the aerospace and defense...
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Hybrid HMX multi-level assembled under the constraint of 2D materials with efficiently reduced sensitivity and optimized thermal stability
September 2024
The interfacial interaction between HMX molecules and coating materials is the key to the safety performance of explosives and has received extensive attention. However, screening suitable coating agents...
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Model-driven full system dynamics estimation of PMSM-driven chain shell magazine
September 2024
Based on the system dynamic model, a full system dynamics estimation method is proposed for a chain shell magazine driven by a permanent magnet synchronous motor (PMSM). An adaptive extended state observer...
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Constitutive model of viscoelastic dynamic damage for the material of gas obturator in modular-charge howitzer
September 2024
In order to investigate the mechanical response behavior of the gas obturator of the breech mechanism, made of polychloroprene rubber (PCR), uniaxial compression experiments were carried out by using...
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A comprehensive review of radiation effects on solder alloys and solder joints
September 2024
In the realm of military and defence applications, exposure to radiation significantly challenges the performance and reliability of solder alloys and joints in electronic systems. This comprehensive...
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Study on the coupling calculation method for the launch dynamics of a self-propelled artillery multibody system considering engraving process
September 2024
The launch dynamics theory for multibody systems emerges as an innovative and efficacious approach for the study of launch dynamics, capable of addressing the challenges of complex modeling, diminished...
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Ballistic performance of titanium-based layered composites made using blended elemental powder metallurgy and hot isostatic pressing
September 2024
Metal matrix composites tiles based on Ti–6Al–4V (Ti64) alloy, reinforced with 10, 20, and 40 (vol%) of either TiC or TiB particles were made using press-and-sinter blended elemental powder metallurgy...
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Effects of nano-metal oxide additives on ignition and combustion properties of MICs-boron rich fuels
September 2024
Boron has been considered a promising powdered metal fuel for enhancing composite propellants' energy output due to its high energy density. However, the high ignition temperature and low combustion...
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Improving millimeter-wave imaging quality using the vortex phase method
September 2024
This paper investigates a new vortex wave imaging approach to improve the imaging quality of small metal targets of size less than 1.5 mm. Antennas with different spiral phase plates are designed to...
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Crack propagation and damage evolution of metallic cylindrical shells under internal explosive loading
September 2024
This paper investigates the three-dimensional crack propagation and damage evolution process of metallic column shells under internal explosive loading. The calibration of four typical failure parameters...
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Machine learning optimization strategy of shaped charge liner structure based on jet penetration efficiency
September 2024
Shaped charge liner (SCL) has been extensively applied in oil recovery and defense industries. Achieving superior penetration capability through optimizing SCL structures presents a substantial challenge...
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Experimental investigation for temperature and emissivity by flame emission spectrum in a cavity of rocket based combined cycle combustor chamber
September 2024
Flame temperature and spectral emissivity were the important parameters characterizing the sufficient degree of fuel combustion and the particle radiative characteristics in the Rocket Based Combined...
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Experimental and numerical study of effecting core configurations on the static and dynamic behavior of honeycomb plate with aluminum material
September 2024
The sandwich panel incorporated a honeycomb core, a widely utilized composite structure recognized as a fundamental classification of composite materials. Comprised a core resembling a honeycomb, possessing...
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Assessment of electrostatic discharge sensitivity of nitrogen-rich heterocyclic energetic compounds and their salts as high energy-density dangerous compounds: A study of structural variables
September 2024
Nitrogen-rich heterocyclic energetic compounds (NRHECs) and their salts have witnessed widespread synthesis in recent years. The substantial energy-density content within these compounds can lead to...
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Microfluidic preparation of surfactant-free ultrafine DAAF with tunable particle size for insensitive initiator explosives
September 2024
High purity and ultrafine DAAF (u-DAAF) is an emerging insensitive charge in initiators. Although there are many ways to obtain u-DAAF, developing a preparation method with stable operation, accurate...
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A high maneuvering motion strategy and stable control method for tandem twin-rotor aerial-aquatic vehicles near the water surface
Available online 23 September 2024
The maneuverability and stealth of aerial-aquatic vehicles (AAVs) is of significant importance for future integrated air-sea combat missions. To improve the maneuverability and stealth of AAVs near...
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Flow field distribution and overpressure characteristics inside the crew compartment of a truck-mounted howitzer under the effect of muzzle blast
Available online 21 September 2024
The muzzle blast overpressure induces disturbances in the flow field inside the crew compartment (FFICC) of a truck-mounted howitzer during the artillery firing. This overpressure is the primary factor...
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Current development and future prospects of multi-target assignment problem: A bibliometric analysis review
Available online 21 September 2024
The multi-target assignment (MTA) problem, a crucial challenge in command control, mission planning, and a fundamental research focus in military operations, has garnered significant attention over...
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Enhanced engineering and biocidal polypropylene filaments enabling melt reduction of AgNO3 through PVP agent: A scalable process for the defense industry with MEX additive manufacturing
Available online 20 September 2024
This study focused on the production of polypropylene (PP)/silver (Ag) composites via additive manufacturing. This study aimed to enhance the quality of medical-grade PP in material extrusion (MEX)...
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