Numerical simulation and experimental study on the characteristics of armature wear and contact process of small caliber railgun
Available online 22 March 2025
During the electromagnetic railgun launch process, high temperature and high current conditions can lead to armature wear, affecting armature/rail contact and degrading launch performance. This paper...
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Research on the navigation method of high speed differential rotation guided ammunition with ballistic assistance prediction under GNSS denial
Available online 20 March 2025
In complex environments such as high dynamics and weak signals, a satellite signal compensation method based on prefabricated trajectory assistance and an improved adaptive Kalman filter is proposed...
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A Multi-Parametric Path Planning Framework Utilizing Airspace Visibility Graphs for Urban Battlefield Environments
Available online 20 March 2025
Urban combat environments pose complex and variable challenges for UAV path planning due to multidimensional factors, such as static and dynamic obstructions as well as risks of exposure to enemy detection,...
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Mitigation strategies for blasting-induced cracks and vibrations in twin-arch tunnel structures
Available online 19 March 2025
Due to space constraints in mountainous areas, twin tunnels are sometimes constructed very close to each other or even overlap. This proximity challenges the structural stability of tunnels built with...
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Application of gurney and flight of fragment calculations for water jet velocities in explosive applications
Available online 19 March 2025
This study investigates the application of Gurney and flight of fragment equations, typically used to predict metal fragment velocities, in modeling the water jet behavior. Three shotgun cartridge sizes...
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Investigation on dynamic response of liquid-filled cylindrical shell structures under the action of combined blast and fragments loading
Available online 19 March 2025
This study designs four types of liquid-filled cylindrical shell structures to investigate their protection characteristics against explosive shock waves and high-speed fragments. Bare charge and charge-driven...
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Realizing high-speed target tracking by using multi-rate feedforward predictive control for the acquisition, tracking, and pointing system
Available online 18 March 2025
The acquisition, tracking, and pointing (ATP) system is widely used in target tracking, counter-UAV operations, and other related fields. As UAV technology develops, there is a growing demand to enhance...
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Investigation of blasting effects and mechanisms on concrete frustums under side-contact explosions
Available online 13 March 2025
Investigating the blast effects and mechanisms on typical finite-sized obstacles is essential for optimizing defense strategies and designing more robust barriers to deter terrorists and protect critical...
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Influence of shaped charge jet state on its interaction with ERA flying plate
Available online 12 March 2025
The Explosive Reactive Armors (ERA) are really efficient at reducing Shaped Charge Jet (SCJ) performance. The main destabilizing mechanism is the transverse movement of the front and rear moving plates...
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FDM - 3D printing of thermoplastic composites with high energetic solids content designed for gun propellants
Available online 9 March 2025
This study represents an important step forward in the domain of additive manufacturing of energetic materials. It presents the successful formulation and fabrication by 3D printing of gun propellants...
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A practical formula for penetration depth of rigid projectiles into rock and concrete considering the non-scaling effect
Available online 6 March 2025
The non-scaling effect on the penetration depth of rigid projectiles is an important issue that must be considered when extending the results of scaled experiments to prototype scenes. In this study,...
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Response of underwater cylindrical shell subjected to supercavitating projectile trans-medium penetration: Experiment and simulation
Available online 6 March 2025
To investigate the dynamic response of the cylindrical shell targets to supercavitating projectile trans-medium penetration and the penetration mechanism, experiments and numerical simulations were...
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Landing scheduling for carrier aircraft fleet considering bolting probability and aerial refueling
Available online 5 March 2025
Recovery is a crucial supporting process for carrier aircraft, where a reasonable landing scheduling is expected to guide the fleet landing safely and quickly. Currently, there is little research on...
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A compact high flux polarized neutron beam generator
Available online 5 March 2025
This paper introduced a compact high flux polarized neutron beam generator scheme, which used air as the working medium and had low energy consumption. The neutron beam generator adopted a linear three...
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Penetration-deflagration coupling damage performance of rod-like reactive shaped charge penetrator impacting thick steel plates
Available online 1 March 2025
The penetration-deflagration coupling damage performance of rod-like reactive shaped charge penetrator (RRSCP) impacting thick steel plates is investigated by theoretical analysis and experiments. A...
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Synthesis of energetic materials by microfluidics
February 2025
Energetic materials, characterized by their capacity to store and release substantial energy, hold pivotal significance in some fields, particularly in defense applications. Microfluidics, with its...
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HTEC foot: A novel foot structure for humanoid robots combining static stability and dynamic adaptability
February 2025
Passive bionic feet, known for their human-like compliance, have garnered attention for their potential to achieve notable environmental adaptability. In this paper, a method was proposed to unifying...
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Utilizing electronic assisted enhancement: An innovative approach for studying the thermal decomposition and combustion of ionic liquids
February 2025
Flammable ionic liquids exhibit high conductivity and a broad electrochemical window, enabling the generation of combustible gases for combustion via electrochemical decomposition and thermal decomposition....
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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
February 2025
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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Microstructure and mechanical properties of welds of AZ31B magnesium alloy produced by different gas tungsten arc welding variants
February 2025
This work aimed to (i) understand conventional and pulse gas tungsten arc welding (GTAW) of AZ31B, and (ii) explore high frequency welding (100 Hz–1500 Hz). GTA welding with alternating current (AC)...
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The hydrodynamic RAM effect: Review of historic experiments, model developments and simulation
February 2025
The Hydrodynamic Ram (HRAM) effect occurs when a high kinetic energy projectile penetrates a fluid filled area, e.g., a liquid filled tank. The projectile transfers its momentum and kinetic energy to...
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Multi-Objective optimization for stable and efficient cargo transportation of partial space elevator
February 2025
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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A novel transient strategy: transient electronics based on energetic materials
February 2025
Transient electronics is a versatile tool that finds applications in various fields, including medical biology, environmental protection, and data information security. In the context of data protection,...
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Experimental study on the buckling of composite cylinders with reinforced circular hole under hydrostatic pressure
February 2025
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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