bluuebunny/crossref_metadata_2025_split huggingface dataset:
Evaluation of Multi-Munition Joint Damage Effects on Command Vehicle of Missile Position
Authors: He Zheng , Wang Zaicheng , Wei Yubiao , Kang Hui 
Published: December 2024

Abstract
For the command vehicle of the missile position, the damage effects of a single small munition are limited, necessitating coordinated multi-munition strikes to achieve effective damage. To evaluate the damage effectiveness of the command vehicle under the attack of multiple small munitions, this paper proposes a multi-munition joint damage assessment model based on the Analytic Hierarchy Process (AHP), target damage tree, and fuzzy comprehensive evaluation. This model comprehensively considers the cumulative damage effects and coupled damage effects of fragments and shock waves, achieving an accurate assessment of the damage level of the command vehicle under multi-munition strikes. Simulation analysis of the damage effects on the command vehicle under different numbers of munitions, strike azimuths, and munition intervals shows that for the small fragmentation munitions used in this study, the damage probability of the command vehicle increases with the number of munitions, exhibiting marginal effects, and the sensitivity to strike azimuth decreases; for different munition quantities and various munition distribution intervals, uniform distribution yields the optimal damage effect.
Numerical Simulation Model of Projectile In-bore Motion Parameters Based on Interior Ballistics Theory
Authors: Li Chaowei , Qin Peiyu , Lu Kewei , Zhang Ningchao , Ma Tianli 
Published: December 2024

Abstract
In modern warfare, artillery systems serve as crucial equipment, and their firing accuracy directly impacts their overall capability to strike targets. Especially under local warfare conditions, the demand for shooting accuracy of large-caliber artillery and small-caliber naval guns is increasingly high. This paper focuses on the interior ballistics design of artillery by constructing an accurate model of the projectile’s in-bore motion.
Laser Ultrasonic Inspection of Carbon Fiber-Titanium Alloy Composite Gun Barrel
Authors: Tang Zhenhe , Duan Jian , Sun Yan , Sun Liangwen , Bao Zhaofu , Zhu Xiaolin , Chen Long , Liu Xiaoyu , Liu Zenghua 
Published: December 2024

Abstract
Thanks to the development and application of composite material reinforced metal based components, the high strength and lightweight requirements of weapons and equipment have been further met. Non-destructive testing for detecting interface delaminations between dissimilar materials, as well as identifying internal defects within each material layer, is an important means to ensure equipment quality and reliability. This paper proposes a laser ultrasonic guided wave field detection and imaging method for identifying defects in carbon fiber-titanium alloy composite gun barrels. The method involves using a pulsed laser to excite ultrasonic guided waves, scanning the gun barrel, receiving wave field signals through a piezoelectric wafer, and imaging defects in the gun barrel based on frequency domain instantaneous wavenumbers. The results indicate that the proposed method can effectively detect and locate delamination and internal defects in carbon fiber-titanium alloy composite materials.
Synthesis modification of PBDMS and its rheological research
Authors: Zhang Yuan , Zhu Ziqiang , Ouyang He , Zhang Yanan , Hu Yubing 
Published: December 2024

Abstract
Polyborosiloxane (PBDMS) is a non-Newtonian fluid that is a type of shear thickening gel (STG). This thesis focuses on the effects of the molar ratio of hydroxyl-capped polydimethylsiloxane (PDMS-OH) and boric acid (BA), inorganic filler silica on the rheological properties of PBDMS. Firstly, the infrared spectra of PBDMS were collected using Fourier transform infrared spectroscopy (FT-IR), which indicated that PBDMS had strong infrared absorption peaks at 690 cm-1, 866 cm-1, which was a sign of Si-O-B bond synthesis, thus proving the synthesis of PBDMS. The shear thickening ability of PBDMS was then tested by dynamic shear testing. The shear thickening effect of PBDMS was quantified by absolute shear thickening effect (ASTE) and relative shear effect (RSTE). The results showed that the synthesised PBDMS displayed a significant solid-liquid transition point, and the energy storage modulus (G’) could be increased by three orders of magnitude with good solid-liquid properties. Moreover, By blending with silica during the synthesis of PBDMS, the G’ of PBDMS at high frequencies can be increased, which is due to the fact that not only the generation of coordination bonds but also the clustering of silica occurs at high frequencies. And when the ratio of PDMS-OH to BA was 1/1, PBDMS had the best processing and rheological properties, showing good solid-liquid characteristics and strain rate sensitivity.
Research on laser detection method against smoke and dust interference based on polarization modulation
Authors: Tan Yuran , Zha Bingting , Weng Junyang , Chen Mingxi 
Published: December 2024

Abstract
Pulsed laser detection is widely utilized in various fields due to its high accuracy and excellent directionality. However, the presence of smoke and dust particles can interfere with laser detection, leading to misidentification or missed targets. Existing studies have indicated that smoke and dust particles can depolarize polarized light, providing a potential means for mitigating smoke interference. Despite this, current research lacks systematic analysis of the transmission characteristics of different polarization states in smoky environments, and methods for smoke interference resistance based on polarization characteristics have not been fully explored. With the Monte Carlo method and Stokes vector analysis this study establishes a multiple scattering simulation model for pulsed polarized lasers in smoke and dust, By examining the echo characteristics of various polarized lasers, significant differences are identified in the degrees of polarization of laser echoes under horizontally polarized light and 45° linearly polarized light, both with and without a target. As a result, a detection method to counteract smoke and dust interference is proposed, utilizing polarized lasers and differentiating based on variations in echo Stokes vectors and degrees of polarization.
Research on Numerical Simulation of the instantaneity of a Mechanical Impact Fuze
Authors: Yang Shanglin , Wang Yabin , Luan Donglin , Guo Pengda 
Published: December 2024

Abstract
The instantaneity of a fuze refers to the time interval between the projectile’s impact on the target and the completion of detonation. This parameter is a critical indicator for evaluating the performance of ammunition. To investigate the factors influencing instantaneity, a numerical simulation was conducted on the process of a projectile striking a target under different conditions, including impact angle, fuze material, and target material. The simulation results, under 12 different conditions, produced acceleration curves and instantaneity for the firing device. Through the analysis of the results, the study establishes key design principles for the firing device of the fuze: the protection design of the ignition device and the selection of the ignition strategy should consider the maximum and minimum impact angles and target hardness. Choosing an ignition device with a low structural strength or a fuze body material with lower hardness and strength can enhance the fuze’s instantaneity The target hardness and impact angle greatly affect the fuze’s instantaneity of the fuze, and appropriate structural strength should be selected in the design.
In Situ Raman Observation of Zinc-Induced Electrochemical Activation of a Layered Manganese Acetate Tetrahydrate Nanosheets
Authors: Yang Bo , Cheng Biyao , Zhao Zhenyu , Yang Wei , Wang Xiaozhuo 
Published: December 2024

Abstract
Rechargeable zinc-ion batteries (ZIBs) are considered as a potential candidate for large-scale energy storage. Herein, a novel layered manganese acetate tetrahydrate (MnAT) nanosheets is reported as cathode for ZIBs. The unique layered structure is conducive to the insertion/extraction of Zn2+ in MnAT. Moreover, crystal water molecules as structural pillars can further enlarge the layer spacing, which will improve the Zn2+ intercalation kinetics of MnAT. Compared with pristine manganese acetate (MnA), MnAT exhibits a relatively high reversible capacity of 139.2 mAh g−1 and good rate/cycling performance. The energy storage mechanism of MnAT cathode was also investigated by in-situ Raman spectra. During the initial charging, partial MnAT undergoes conversion reaction to form intermediate MnO which further oxidized into MnO2. Simultaneously, Mn dissolution enabled MnAT to be activated material, resulting in the formation of Mn defects in MnAT. This work will provide new insights into the Mn-based materials as ZIBs cathode.
Research on Miniature Three-Axis Switch Used in Fuze
Authors: Liang Hanwen , Jia Senqing , Guo Hua , Wang Lifang , Song Rongchang , Zhou Xingzong 
Published: December 2024

Abstract
This paper proposes a miniature three-axis switch based on precision mechanical processing technology. A dynamic analysis of the three-axis switch is conducted, and the standard S-type micro-spring is optimized for design requirements. A contact enhancement design with flexible contacts on the mass block is proposed, and the structural design of a layered three-axis sensitive three-axis switch is completed. Finite element simulation methods are used to analyze the stiffness modal properties, multi-directional closure thresholds, and contact performance of the three-axis switch.
Heat Generation Measurement of MOSFET in High-Frequency Transformer Circuits
Authors: Cheng Jiale , Zhang Yinghao , Cheng Xiangqun , Liu Yang 
Published: December 2024

Abstract
With the miniaturization of semiconductor devices, heat generation management for Metal-Oxide-Semiconductor Field-Effect Transistor (MOSFET) is of vital importance. High-frequency switching of MOSFETs is a key component in the operation of transformer circuits. Thus, gaining a deeper understanding of MOSFET heat generation under these high-frequency operating conditions is essential. In this study, we present a transformer circuit based on Pulsed Width Modulation (PWM) regulation and provide a reliable method to measure the temperature variation of MOSFET. We found that higher working frequency usually leads to a higher heat accumulation and thus a higher temperature change.
YOLOv8-MDS: A YOLOv8-Based Multi-Distance Scale Drone Detection Network
Authors: Chen Mingxi , Zheng Zhen , Sun Haoran , Ma Dong 
Published: December 2024

Abstract
Drones have become widely used across various fields, showcasing their capabilities while also raising significant security and privacy concerns. Current detection methods, such as radar, radio frequency, and acoustic detection systems, face issues like high costs and poor interference resistance. The rapid development of computer vision has led to the emergence of visual-based drone detection solutions. To address the challenge of varying drone sizes at different distances impacting visual detection, this paper constructs a multi-distance scale drone dataset with images captured at different distances and environments. Additionally, a Multi-Distance Scale Feature Attention Module (MDS-Module) is proposed and integrated into the neck of the model via leap connections to enhance global feature detection. Furthermore, to account for the typically rectangular nature of drone anchor boxes, the EIoU loss function is used in the detection head to improve the model’s detection capability for drone targets. we conducted comprehensive ablation and comparative experiments on the improved model. The experimental results demonstrate that incorporating the Multi-Distance Scale Feature Attention Module significantly enhances the model’s ability to detect drone targets across multiple distance scales.
Intelligent target recognition method for infrared/laser composite fuze
Authors: Yan Jiangyi , Duan Rongxin , Wang Zhi , Zheng Gaoxiang , Zhou Peicheng , Yang Panxiong , Wang Keyan 
Published: December 2024

Abstract
In the context of complex environment, the intelligent target recognition method for infrared/laser composite imaging fuze encounters the following challenges: 1) The dearth of infrared/laser composite imaging fuze data hampers the advancement and implementation of deep learning technology in fuze target recognition; 2) The extant infrared/laser composite imaging fuze target recognition methods exhibit suboptimal recognition accuracy in complex terrain and ground conditions, which predisposes them to early or false explotions. To address the aforementioned issues, we have constructed infrared/laser composite imaging target and background dataset in diverse scenes, terrains and features, which provides effective data support for the intelligent recognition of composite imaging fuze. Additionally, we have designed a cross-modal fusion attention mechanism and an invariant feature learning method. The method facilitates the fusion of multimodal complementary information and the intelligent recognition of multi-scale and multi-morphology targets in complex scenes. Furthermore, they enhance the accuracy of the composite imaging fuze, enabling it to adapt to complex terrains. This enhances the combat effectiveness of composite imaging fuze in complex environments, while also offering technical support for the intelligentization of target recognition systems in future ballistic fuze.
Research on Identification of Fire Signal of a Certain Type of Rocket
Authors: Guo Pengda , Wang Yabin , Luan Donglin , Yang Shanglin 
Published: December 2024

Abstract
To assess the contradiction between ballistic safety and ignition reliability in traditional rocket projectile inertial initiation mechanisms, this study focuses on the recognition of graze bursting ignition signals for a specific type of rocket projectile. By utilizing a finite element numerical simulation method to model the small-angle impact of the rocket projectile on a target, the overload information can be extracted from the ignition mechanism. The accuracy of the simulation model can be validated by comparing it with data obtained from live ammunition tests. Through a series of simulations, the ignition threshold can be determined by the maximum velocity change vector within different time windows of the ignition mechanism. And the integration algorithm is used to accumulate the overload value of the ignition mechanism in the time window to judge whether the velocity change threshold is reached, and then judge whether to output the ignition signal. The algorithm verification shows that the algorithm can effectively identify the ignition signal under the set ignition threshold. This method provides a basis for recognizing the graze bursting ignition signal.
Study on the cutting performance of linear jet on abandoned ammunition under different initiation modes
Authors: Guan Siman , Wang Zhijun , Ji Qing , Hao Ruijie 
Published: December 2024

Abstract
The traditional shaped charge is often used to detonate the projectile charge when dealing with abandoned ammunitions. This disposal method cannot meet the requirements of resource conservation and environmental protection. Based on the “penetration without detonation” damage characteristics of low-density jet to shelled charge, a linear shaped charge simulation model was established by using PTFE and its composite materials as liner materials. The process of cutting 122 mm abandoned ammunition by jet formed under different initiation modes was simulated. The results show that the pressure and propagation velocity of one-dimensional plane detonation wave formed by surface initiation charge are greater than those of divergent detonation wave formed by point initiation charge. The PTFE jet formed by the two initiation methods can not completely cut the abandoned ammunition. The PTFE/Cu jet formed by the surface initiation could completely cut the abandoned ammunition and don’t detonate the internal charge. Subsequently, the explosive is poured out and reused by high-temperature melting to achieve the purpose of saving resources. This study will provide a green approach for the disposal of abandoned ammunition.
Study on the temporal-spatial evolution process of axial preformed fragment power field
Authors: Hao Ruijie , Yi Jianya , Guan Siman 
Published: December 2024

Abstract
The temporal-spatial evolution process of fragment power field is the basis for calculating the state of fragment-target encounter and damage assessment. In order to accurately describe the temporal-spatial evolution process of the fragment power field of the axial preformed fragment warhead, the numerical simulation method is used to analyse the fragment dispersion characteristics of different warheads, and the fragment velocity attenuation model is established by programming. The numerical simulation results are used as the initial value to substitute into the model to obtain the temporal-spatial evolution process and the hitting target process of the fragment power field. The results show that the multi-layer fragments will collide many times under the action of detonation load, and the collision will lead to the decrease of the average velocity of the same fragment layer and the increase of the scattering angle. After increasing the number of fragments, the outer fragments are more concentrated, but the average velocity is significantly reduced, and the fragment miss rate increases. This study can provide a calculation basis for the state of fragment-target encounter and the static and dynamic explosion test of fragment warhead.
A prediction approach for partial properties of filament wound composite tube considering fiber winding prestressing
Authors: Yin Dongmei 
Published: December 2024

Abstract
The initial residual prestress in the filament-wound products would affect their mechanical properties. Based on the multi-scale homogenization principle, this work proposes a method to predict the equivalent elastic properties of the filament-wound composites which can consider fiber winding prestressing. Combining with the quasi three-dimensional laminated plates theory, the bridging model with considering the thermal stress is adopted in this prediction model. Through this model, the effects of the fiber pre-tension and curing cooling temperature on the equivalent axial elastic modulus of the filament wound glass fiber/epoxy tubes are analyzed. In additions, the equivalent outer diameters of these tubes are also forecasted. Most of the results obtained by this theoretical model are close to the experimental results in the reference. It indicates that this model is reliable to some extent, and it can provide a reference for the design of properties of the filament wound composite tube.
Strategy for Calculating the Speed of Trans Media Small Targets Using Stereo Vision Fusion Object Detection
Authors: Dong Yi , Kong Xiaofang , Xia Yan , Wan Minjie 
Published: December 2024

Abstract
The velocity calculation of the projectile entering water involves fluid dynamics, shock wave propagation and other aspects of the problem. Traditional photoelectric, radar and laser velocimeters suffer from reduced accuracy due to trans-media effects. At the same time, the projectile entering the water will create a large splash, which affects the parameter measurement of the projectile entering water. In order to address the above problems, a trans-media projectile entry system is constructed, a binocular high-speed camera is used to capture the dynamic process of the projectile entering the water, and a deep learning model is trained for the detection of the projectile target, which assists in the computation of the projectile’s three-dimensional coordinates and then. calculates the speed of the projectile at the moment it enters the water. The experimental results show that the binocular camera provides a better reconstruction of the 3D coordinates of the projectile, and the target detection combined with edge detection makes it easier to obtain the contour information as well as the pixel coordinates of the projectile. The mAP0.5 of the target detection model is 95.43%. Using this target detection model to extract useful images of projectile water entry frames from the video stream saves more than 90% of the time compared with manual extraction, providing an efficient calculation for calculating the velocity of trans media small targets.
Study of thermal decomposition and mechanical sensitivity of ETPE propellants
Authors: Zhang Ning , Gao Xifei , Xin Yanping , Zhang Weihai , Liu Changyi , Wu Haohao , Xue Chen , Chen Lei , Zhang Na , Zhang Yuxuan , Sun Shixiong , Luo Yunjun 
Published: December 2024

Abstract
In this paper, the thermal decomposition characteristics and mechanical sensitivity of ETPE propellant were characterized by differential scanning calorimeter (DSC), vacuum stability tester (VST), impact sensitivity tester and friction sensitivity tester, and the main factors affecting the safety performance of ETPE propellant were studied. The results show that ETPE propellant has good thermal stability under 185°C. The combustion activation energy of ETPE propellant is slightly lower than that of HTPB propellant. By using 100°C heating method, the net added gas of ETPE propellant is 0.81ml/g, which meets the evaluation standard of stability qualification, and the propellant did not spontaneously combust under various high temperature test conditions. By reducing the amount of fine AP and controlling the amount of RDX, it is conducive to reducing the probability of the “hot spot” generated by the propellant under the external excitation energy, reducing the mechanical sensitivity of propellant and improving the safety performance of propellant.
Analysis and Experimental Study of Rocket Impact Velocity
Authors: Sang Manxian , Cao Haijun , Cao Wenjun , Li Peng , Ma Yue , Xuan Liu Ying , Shi Yongpeng , Li Shu , Yue Dongxu , Zhang Kuan 
Published: December 2024

Abstract
In order to study the dynamic process of rocket impacting on the front seal cover of the directional tube of the storage and transportation box during launching, the finite element model of rocket and the seal cover of the directional tube was established, and the dynamic dynamic process of the seal cover before launching was simulated and analyzed by Ansys/Ls-dyna dynamic analysis software. The influence of different impact velocity impulse on the structure and performance of the rocket fuze component is studied to obtain a reasonable impact velocity. Combined with the test to further verify the accuracy of the simulation analysis results, it can be concluded that: through a reasonable design of the rocket impact cap, the rocket head fuze component can reliably break the front seal cover of the directional tube without affecting its own structure and performance.