Browse Topic: Military vehicles and equipment

Items (2,788)
Military tactical vehicles are increasingly incorporating anti-idle kits as a method to reduce fuel consumption. The larger battery pack associated with the anti-idle kit has the potential to provide new capabilities to the warfighter, who can use the battery pack to power pieces of equipment. This study analyzes a set of these new capabilities derived from the U.S. Army Universal Task List, supplemented with user interviews and doctrinal analysis. These capabilities include powering dismounted soldier systems, counter-drone and surveillance equipment, mobile refrigeration for medical applications, field maintenance tools, and mobile food services. The study then uses geolocation data collected from the U.S. Army’s National Training Center to model daily fuel consumption for soldiers performing each of these activities. The model was subsequently adapted to incorporate an anti-idle kit, revealing significant reductions in fuel usage. The analysis uses the results to define common
Lusian, TrevonteMummert, TaigeKaiser, CalebGreer, MichaelBlack, NathanielOng, BennettTapahonso, EugeneMittal, Vikram
During the 2025 Association of the United States Army (AUSA) annual meeting and exhibition, Forterra announced several major defense industry vehicle partnerships and introduced four new integrated modules designed to enable autonomy for military vehicles, communications, and more. Headquartered in Clarksburg, Maryland, Forterra develops autonomous mission systems for specific defense applications, including robotics and self-driving vehicles. The company has a new partnership with BAE Systems that will rapidly prototype an autonomous Armored Multi-Purpose Vehicle (AMPV). Separately, Forterra has also collaborated with Oshkosh Defense and Raytheon to develop the “DeepFires” autonomous vehicle launcher technology.
The U.S. Army Space and Missile Defense Command Technical Center's Aerophysics Research Facility, (ARF), fired a successful hypersonic shot to test its new rainfield simulator. U.S. Army Space and Missile Defense Command Technical Center, Huntsville, AL Zack Perrin, ARF manager and technical lead engineer of the U.S. Army Space and Missile Defense Command (USASMDC's) Targets and Test Resources Branch of the Ronald Reagan Ballistic Missile Defense Test Site, said ARF is SMDC's premier hypersonic flight and hypervelocity impact laboratory. Perrin said their largest gun system, the 254 mm light gas guns, or LGGs, is the fastest gun in the Army and can launch projectiles 6 inches in diameter to speeds up to 3 kilometers per second or smaller projectiles on the order of 2.7 inches in diameter to velocities exceeding 6 km/s. “I like to tell people that the facility is a gun range the size of an aircraft carrier and within the facility are multiple engineering tools, called light gas guns
RF and fiber have long co-existed within modern military and aerospace systems, with each medium dedicated to separate, mission-critical roles. Increasingly, however, system designers are turning to RF-over-fiber (RFoF) architectures to bridge the gap between over-the-air RF interfaces and the long, interference-resistant transport advantages of fiber. When it comes to over-the-air communications uses like tactical radio or satellite communications terminals, radio frequency (RF) is still the dominant signal format. RF is also commonly used at the front end of radar and electronic warfare, supporting search, tracking, fire control radar, missile seekers, jammers and electronic support measures.
Pyrovalves (also known as pyrotechnic valves) have long been a staple in defense systems, particularly in missile and munition launcher applications. The rapid growth of counter-UAS and missile defense systems makes this an ideal time to explore smarter alternatives to pyrovalves. One of the largest ongoing U.S. military efforts is the Missile Defense Agency's (MDA) Scalable Homeland Innovative Enterprise Layered Defense (SHIELD) Multiple Award Indefinite Delivery/Indefinite Quantity (IDIQ) contract. In December, MDA issued two tranches of SHIELD awards to more than 2,100 companies, including major defense contractors and startups such as Lockheed Martin, Raytheon, Boeing, Shield AI, Anduril, and Virtualitics.
As atmospheric CO₂ concentrations continue to rise at unprecedented rates, the urgent need for breakthrough technologies that can efficiently capture carbon directly from the air and convert it into sustainable synthetic fuels has never been clearer. While numerous capture and conversion methods have been propose, many remain at an early stage of development, facing significant challenges such as low energy efficiency, limited scalability, and high operational costs. This lack of technological maturity underscores a vast, largely untapped potential for innovation and transformative advancement. In response to this gap, the present study compiles and critically examines a wide spectrum of emerging capture and conversion technologies. Through a detailed exploration of their functionalities, potentials, advantages, and challenges, the paper accumulates a comprehensive and well-informed dataset. This holistic understanding not only reveals key bottlenecks but also identifies promising
Jain, GauravPremlal, PPathak, RahulGore, Pandurang
Current world conflicts have proven that drones are now indispensable tools in modern warfare. Whether for reconnaissance, loitering munitions, or asymmetric tactics that exploit vulnerabilities in conventional defenses, unmanned aerial systems (UAS) are redefining the rules of engagement.
Tracked Military Vehicles are well known in armed forces, due to their use and importance in conventional combat, playing a crucial role since World War I until current combats. Also, as it happens in different generations, the environment involved in these wars changes and those vehicles are being used not only in open field situations, but inside residential neighborhoods also. However, despite their relevance, analyses and studies aimed at understanding these vehicles are scarce at the undergraduate level, which creates a gap among the recent graduate engineers that want to learn and understand how tracked vehicles perform in different scenarios. This is important because understanding initial concepts helps to bring more ideas and start more detailed studies in the area. Therefore, to bridge this gap, a detailed dynamic analysis of a tracked military vehicle is conducted using MATLAB with a dynamic model to evaluate performance, level transitions, and acceleration. Additionally
Dalcin, Pedro Henrique KleimRibeiro, Levy PereiraLopes, Elias Dias RossiRodrigues, Gustavo Simão
Powertrain architecture is being reshaped by the electrification of heavy-duty military vehicles using hydrogen fuel cell technology, particularly in transmission systems. Unlike conventional internal combustion engines, hydrogen fuel cell electric vehicles (FCEVs) typically use single-speed or direct-drive configurations due to the high torque of electric motors. This paper examines the impact of hydrogen electrification on military vehicle transmissions, focusing on armored multi-role models such as the VBMT-LSR, Guarani, and Leopard 1A5 of the Brazilian Army. The study compares traditional gearboxes with alternative solutions optimized for fuel cells, analyzing the trade-offs in efficiency, durability, and operational adaptability. Additionally, it explores adaptations required for hydrogen internal combustion engines (H2-ICEs), considering their distinct characteristics and demands. The study employs a three-step validation methodology combining computational simulations, technical
Biêng, Ethan Lê QuangPontes, Guilherme AyrosoConrado, Guilherme Barreto RollembergLopes, Elias Dias RossiRodrigues, Gustavo Simão
Since the emergence of the first tanks in World War I, tracked military vehicles have driven the development of increasingly sophisticated control systems, keeping pace with the evolution of technologies and combat tactics. This study aims to develop a longitudinal speed control system for tracked military vehicles using a cascade framework. To this end, a dynamic model based on the bicycle model—commonly employed for wheeled vehicles—has been appropriately adapted to represent the dynamics of tracked vehicles. In the first stage, a Model-based Predictive Controller defines the required traction force to be produced by the track; subsequently, a PID controller determines the necessary torque on the drive pulley to achieve the desired force. Simulations performed in MATLAB, considering a straight trajectory and speeds of up to 20 km/h, demonstrate the effectiveness of the proposed control system, yielding satisfactory results in the regulation of longitudinal speed.
Forte, Marcelo AlejandroPenha, Luiz Roberto Martins SilvaBraga, Matheus Rodrigues PereiraRodrigues, Gustavo SimãoLopes, Elias Dias Rossi
The present study aims to utilize a tire mathematical model that incorporates multiple contact points between the tire and the ground to provide a more accurate and realistic representation of the vertical and longitudinal dynamics of the Guarani 6x6 Armored Personnel Carrier (APC), a medium-wheeled vehicle used by the Brazilian Army. First, the subsystems involved in the longitudinal dynamics of the Guarani APC are introduced and modeled using TMeasy, a physical-mathematical model for tire slip behavior. Subsequently, the subsystems associated with the vehicle’s vertical dynamics are presented and modeled based on Ageikin’s concepts of obstacle negotiation. Finally, the longitudinal and vertical models are integrated to develop a multi-contact-point model with enhanced completeness, considering their mutual influence on each other. The modeling process is conducted within the Simulink® environment of MATLAB®. In each stage, simulations validate the proposed model’s suitability in
Godinho, Gabriel AsvolinsqueCosta Neto, Ricardo Teixeira
Vehicle dynamics encompasses a vehicle’s motion along three principal axes: longitudinal, lateral, and vertical. The vertical component is particularly susceptible to vibrational forces that can impair passenger comfort and overall performance, and the suspension system filters these vibrations. Engineers and designers conduct various studies to enhance quality and develop innovative designs in this context. However, when it comes to military vehicles, this system is often treated as classified. Consequently, the proposed work aims to determine the parameters of this system for a wheeled military vehicle with four axles. To achieve this, a mathematical model is proposed utilizing the concepts of power flow and kinematic transformers through a modular system, intended to serve as the foundation for solving an inverse problem to identify these parameters. This approach employs two stochastic methods, particle swarm optimization (PSO) and differential evolution (DE), and field tests to
de Oliveira, André NoronhaBueno Caldeira, Aldélioda Costa Neto, Ricardo Teixeira
Technological innovations in military vehicles are essential for enhancing efficiency, safety, and operational capability in complex scenarios. Advances such as navigation system automation and the introduction of autonomous vehicles have transformed military mobility. State estimators enable the precise monitoring of critical variables that are not directly accessible by sensors, providing real-time information to controllers and improving dynamic response under variable conditions. Their integration is crucial for the development of advanced control systems. This study aims to develop and compare parameter and states estimators for military heavy vehicles using three methodologies: particle filter, extended Kalman filter, and moving horizon state estimation. Computational simulations employ Pacejka’s magic formula to model tire behavior, and the vehicle modeling is based on a simplified quarter-car model, with an emphasis on longitudinal dynamics. In the end, the estimators are
Barros, Leandro SilvaSousa, Daniel Henrique BrazRodrigues, Gustavo SimãoLopes, Elias Dias Rossi
Augustine's Law predicts “In the year 2054, the entire defense budget of the United States will purchase just one aircraft. This aircraft will have to be shared by the Air Force and Navy three days each per week except for leap year, when it will be made available to the Marines for the extra day.” While the world is not on course for the $800 billion aircraft as Augustine predicted, the aerospace & defense industry must take steps to bring new technology to the battlefield without the $800 billion price tag. The development of robotic aircraft or drones is one way to deliver new capability faster for less cost.
Modern warfare is defined as much by data dominance as by maneuver. From satellite-based intelligence, surveillance, and reconnaissance (ISR) platforms to dismounted soldiers' handheld radios, operational success depends on the ability to move, process, and act on digital information in real time. Yet this dependence introduces a critical vulnerability: as the force becomes more data-centric, it becomes more susceptible to disconnection, jamming, and cyber denial. In disconnected, intermittent, and limited (DIL) environments - where communications are degraded by terrain, adversarial interference, or limited infrastructure - traditional network architectures falter. Centralized command nodes and linear data pipelines cannot sustain the agility or resilience required at the tactical edge. The solution is a new design paradigm - one that integrates ruggedized hardware, edge computing, artificial intelligence (AI), and hybrid tactical-cloud architectures into a distributed, adaptive
Leonardo DRS Arlington, VA mmount@drs.com
Moog Inc. East Aurora, NY kgibas@moog.com
This SAE Standard applies to all combinations of pneumatic tires, wheels, or runflat devices (only as defined in SAE J2013) for military tactical wheeled vehicles only as defined in SAE J2013. This applies to original equipment and new replacement tires, retread tires, wheels, or runflat devices. This document describes tests and test methodology, which will be used to evaluate and measure tire/wheel/runflat system and changes in vehicle performance. All of the tests included in this document are not required for each tire/wheel/runflat assembly. The Government Tire Engineering Office and Program Office for the vehicle system have the responsibility for the selection of a specific test(s) to be used. The selected test(s) should be limited to that required to evaluate the tire/wheel/runflat system and changes in vehicle performance. Selected requirements of this specification shall be used as the basis for procurement of a tire, wheel, and/or runflat device for military tactical wheeled
Truck and Bus Tire Committee
TOC
Tobolski, Sue
Hybrid powertrain technology serves to improve performance, enable new functional capabilities, decrease fuel consumption, increase operational reach, and increase lethality by supporting advanced weapons systems. Several demonstrators have been developed for the Army, including those recently commissioned and tested by numerous programs over the last decade. This work examines the results of one of these demonstrators for a Light Tactical Vehicle (LTV) and analyzes tradeoffs in the components’ characteristics, including the battery size, energy, and power capabilities, specifically regarding the system’s ability to meet key performance and power generation requirements. This work was completed through test data analysis coupled with a vehicle 1D simulation. Results show design implementation impacts and tradeoffs between vehicle weight, performance, EV-only range, and fuel consumption that can be utilized for system-level optimization.
Worm, Zander ThomasGoodenough, BryantSchmidt, HenryPutrus, JohnathonNaber, Jeffrey
U.S. Army soldiers recently evaluated the off-road delivery capabilities of Overland AI's “ULTRA” autonomous vehicle during a demonstration exercise in Vaziani, Georgia. U.S. Army, Vaziani, Georgia In an effort to cut costs and improve supply delivery efficiency, the U.S. Army assessed the Overland AI ULTRA Fully Autonomous Tactical Vehicle prototype during exercise Agile Spirit 25 at the Combat Training Center, Vaziani Training Area, Georgia, in July. “Agile Spirit 25 is the 12th iteration of a biennial multinational exercise designed to enhance readiness, interoperability and combined operational capabilities, which promotes our countries' shared goal of security and stability in the Black Sea Region,” said Col. Will Cox, Co-exercise Director for Agile Spirit 25.
Forest fire prevention and control agencies in São Carlos, in the interior of the state of São Paulo, Brazil, will soon have help from the sky to detect fires more quickly and combat them before they grow out of control and cannot be extinguished.
Hensoldt Taufkirchen, Germany nico.fritz@hensoldt.net
In an effort to cut costs and improve supply delivery efficiency, the U.S. Army assessed the Overland AI ULTRA Fully Autonomous Tactical Vehicle prototype during exercise Agile Spirit 25 at the Combat Training Center, Vaziani Training Area, Georgia, in July.
When a Marine in the field launches an uncrewed aerial vehicle (UAV) to gather intelligence, it becomes more than just a drone. It's a flying data center that processes AI workloads, runs machine learning algorithms, and transmits critical information through a complex network designed to provide situational awareness across multiple commands. All of this computational power generates significant heat, and in the confined space of a UAV operating in harsh environmental conditions, thermal management becomes critical to mission success. But there's a fundamental question the U.S. defense isn't asking: how will we manage the heat? The Golden Dome, the Trump administration's vision for missile defense, builds upon the existing Joint All-Domain Command and Control (JADC2) framework for connecting sensors from all branches of the U.S. armed forces into a unified network powered by artificial intelligence. This plan faces an existential threat from thermal management challenges that have
In shoot-and-scoot tactics, a common rule is that artillery units should not reuse firing positions; a more cautious rule is that they should not even pass near an old firing position when relocating. We use the cautious rule to define a variant of the traveling salesman problem, where an artillery unit shall use as many firing positions as possible with minimal travel time and never reuse or pass near an old firing position. We develop greedy and randomized heuristic algorithms and test them on some examples, and an auxiliary algorithm that finds a lower bound of the travel time. We also use “independent sets” of graph theory to reduce a problem instance to one or several smaller instances. We find that one can get good solutions reasonably fast by running a randomized algorithm repeatedly and that problem reduction via independent sets can improve performance.
Damgaard, Thomas JonssonRittri, Mikael
Modern-day sensors encounter performance bottlenecks due to latency in the data path to processing, analysis, and storage functions. This issue can be mitigated by introducing a direct PCI Express (PCIe) or PCIe-switched fabric connection to the sensor. PCIe significantly reduces latency, outperforming other standard connection forms like Ethernet. Let’s explore the efficiency and advantages of a PCIe connection and focus on the versatility of the PCIe-switched fabric.
Reardon, Jim
This study develops a biological-electrochemical process for ammonia fuel production from high-strength blackwater, integrating enhanced ammonification, anaerobic digestion (AD), and electrodialysis (ED). The system achieved 90% COD removal, with Bacillus subtilis increasing NH3-N concentrations by 113%, enhancing nitrogen recovery. AD reduced volatile solids by 60%, producing 200 mL/day of biogas with 70% methane content, and increased NH3-N from 215 to 308 mg/L in the effluent. ED concentrated ammonia to 3 g NH3-N/L with an energy consumption of 1.8 Wh/L, while diluted effluent contained <30 mg NH3-N/L. The system generated a net energy output of 20.48 kWh-e/day, transforming wastewater from an energy sink into an energy-positive process. This approach enables high-efficiency nitrogen recovery, converting waste into ammonia fuel for reformation efforts, while supporting decentralized sanitation solutions.
Thomas, BenjaminEmerson, EmiliaSmerigan, BlakeMonson, CarterLiu, YanBoltersdorf, JonathanHill, CarolineDillon, Robert J.Baker, David R.Dusenbury, JamesLiao, Wei
Automated, telerobotic, and autonomous off road vehicles present unique safety concerns for their users, both military and civilian, due to their complexity and their extensive use of open source software. This is particularly true when personnel are intermingled with vehicles as is common during many operations. This paper presents a unique approach to providing true functional safety while permitting the developers of the automated/telerobotic/autonomous hardware and software to rapidly implement changes and improvements.
Underhill, MarkDelecki, RichSullivan, Denis O.
The Vision for Off-road Autonomy (VORA) project used passive, vision-only sensors to generate a dense, robust world model for use in off-road navigation. The research resulted in vision-based algorithms applicable to defense and surveillance autonomy, intelligent agricultural applications, and planetary exploration. Passive perception for world modeling enables stealth operation (since lidars can alert observers) and does not require more expensive or specialized sensors (e.g., radar or lidar). Over the course of this three-phase program, SwRI built components of a vision-only navigation pipeline and tested the result on a vehicle platform in an off-road environment.
Towler, Meera DayGarza, Harold A.Chambers, David R.
As unmanned vehicular networks become more prevalent in civilian and defense applications, the need for robust security solutions grows in parallel. While ROS 2 offers a flexible platform for robotic operations, its security model lacks the adaptability required for dynamic trust management and proactive threat mitigation. To address these shortcomings, we propose a novel framework that integrates containerized ROS 2 nodes with Kubernetes-based orchestration, a dynamic trust management subsystem, and integrability with simulators for real-time and protocol-flexible network simulation. By embedding trust management directly within each ROS 2 container and leveraging Kubernetes, we overcome ROS 2’s security limitations by enabling real-time monitoring and machine learning-driven anomaly detection (via an autoencoder trained on custom data), facilitating the isolation or removal of suspicious nodes. Additionally, Kubernetes policies allow seamless scaling and enforcement of trust-based
Tinker, NoahBoone, JuliaWang, Kuang-Ching
The Ground Vehicle Systems Center (GVSC) has an ongoing effort to use Industrial Design to explore the toughest problems faced by the Army modernization community. That effort takes several steps from the Design thinking discipline and seeks to understand Soldier perspectives, define problems and propose conceptual solutions. This paper summarizes the employment of Industrial Design at GVSC as well as outputs from two key Design projects. It concludes by presenting the combined learned outcomes from several Design efforts at GVSC and proposes ways in which Industrial Design and Design Thinking can better drive Army modernization, by understanding user’s needs, and committing to Innovation.
Nyanankpe, Guenter
Model-Based Systems Engineering (MBSE) is a growing field in engineering design, enabling rapid prototyping and deployment of concepts. However, the quality of engineering simulations depends heavily on the quality of the models used. As a result, quantifying and reducing model error is critical in MBSE. To do this effectively, examining how model error is measured is crucial. Error metrics reduce the complex relationship between predicted and measured behavior to a single scalar value. This compression can introduce bias, but it is necessary for error quantification and surrogate generation. This paper examines the impact of this compression on model behavior and offers a decision framework for choosing error metrics. While not all uncertainty is reducible, modelers should decide which uncertainties are acceptable and how they are measured.
Taylor, EvanMocko, GregoryLouis, Ed
A kinematic model of primary piston motion was developed along with a simplified combustion model for the purpose of evaluating various factors that could impact the piston skirt thrust loads of an Opposed Piston Two Stroke Diesel engine. The assessment considered connecting rod length, wrist pin mass, peak cylinder pressure, indicated torque, and wrist pin offset. The results show that small changes in connecting rod length could realize significant improvements in piston skirt friction as well as increased engine performance. The results indicate that small increases in overall engine width should be considered when optimizing for reduced oil consumption and enhanced piston skirt lubrication.
Srodawa, John
The beta release of Systems Modeling Language (SysML) v2 provides a powerful, modular and interoperable modeling language that can serve as a practical and serviceable basis for the modeling of Modular Open Systems Approach (MOSA) compatible systems. This paper will explore some of the useful new features of this language and how these can be applied to the development of MOSA compatible systems. To demonstrate the capabilities of this modeling language, we will develop a “toy model” of a ground vehicle, complete with a MOSA compatible interface, in SysML v2 textual notation. Further discussion will demonstrate how this model can be distributed amongst other parties and organizations. This model will be developed fully in SysML v2 textual notation, demonstrating the power and ease of us of this new modeling notation.
Brechtel, Charles E.Massey, Steven
Ground vehicle software continues to increase in cost and complexity, in part driven by tightly integrated systems and vendor lock-in. One method of reducing costs is reuse and portability, encouraged by the Modular Open Systems Approach and the Future Airborne Capability Environment (FACE) architecture. While FACE provides a Conformance Testing Suite to ensure portability between compliant systems, it does not verify that components correctly implement standard interfaces and desired functionality. This paper presents a layered test methodology designed to ensure that a FACE component correctly implements working communication interfaces, correctly handles the full range of data the component is expected to manage, and correctly performs all of the functionality the component is required to perform. This testing methodology includes unit testing of individual components, integration testing across multiple units, and full hardware in the loop system integration testing, offering a
Lingg, MichaelPaul, HowardSullivan, KyleVanSolkema, William
The early stages of product planning and concepting in advanced engineering domains are often hampered by high uncertainty, fragmented decision-making, and unstructured data. Traditional planning methodologies routinely lead to misalignment, inefficient risk assessments, and suboptimal product strategies. To address these challenges, we propose an AI-agentic decision intelligence (DI) framework that leverages Large Language Models (LLMs) to enhance decision-making in product planning and concept development. The proposed framework uses the transformative natural language processing capabilities and comprehensive knowledge of LLMs to capture and refine stakeholder intent, improve stakeholder engagement, and optimize workflow orchestration. Implementation of the framework is facilitated by state-of-the-art and rapidly evolving open-source tools, ensuring scalability and readiness for corporate environments. By enhancing decision confidence, adaptability, and automation, the framework
Murat, AlperChinnam, Ratna BabuRana, SatyendraRapp, Stephen H.Hansen, KurtRichman, Todd A.Bechtel, James E.
This research evaluated the practicality of implementing Post-Quantum Cryptography (PQC) algorithms onboard resource-constrained computing devices, especially those found in automotive platforms. While computational efficiency within PQC is high, memory size and bandwidth constraints become relevant upon consideration of end-to-end implementation. The Controller Area Network (CAN) protocol utilizes only eight (8) bytes of data payload per message, requiring the large keys of PQC algorithms to be split into several messages. Power efficient 32-bit ARM microcontrollers were used for testing. Comparison was made between software implementations of both PQC and modern algorithms to evaluate relative computational cost. Ultimately, this research determined that the communication overhead required by PQC algorithms such as CRYSTALS-Kyber, CRYSTALS-Dilithium, and Falcon is not so egregious as to preclude them from implementation on board vehicular networks.
Smith, SethOwens, KyleKozan, Katherine
Navigation in off-road terrains is a well-studied problem for self-driving and autonomous vehicles. Frequently cited concerns include features like soft soil, rough terrain, and steep slopes. In this paper, we present the important but less studied aspect of negotiating vegetation in off-road terrain. Using recent field measurements, we develop a fast running model for the resistance on a ground vehicle overriding both small vegetation like grass and larger vegetation like bamboo and trees. We implement of our override model into a 3D simulation environment, the MSU Autonomous Vehicle Simulator (MAVS), and demonstrate how this model can be incorporated into real-time simulation of autonomous ground vehicles (AGV) operating in off-road terrain. Finally, we show how this model can be used to simulate autonomous navigation through a variety of vegetation with a PID speed controller and measuring the effect of navigation through vegetation on the vehicle speed.
Goodin, ChristopherMoore, Marc N.Hudson, Christopher R.Carruth, Daniel W.Salmon, EthanCole, Michael P.Jayakumar, ParamsothyEnglish, Brittney
Charcoal is a frequently used resource by the DoD with numerous applications. Military charcoal is produced through destructive distillation of a variety of wood types, resulting in a high degree of batch-to-batch variability. Depending on the application of the charcoal, this variability can result in undesirable characteristics in the end-product. To address this issue, DEVCOM AC is examining a charcoal bio-manufactured by DEVCOM CBC using bacteriophages. This highly controlled process results in the consistent production of charcoal with a variety of desirable characteristics, including a high surface area available for combustion due to its porosity as well as a high level of purity. In this effort, DEVCOM AC is investigating this bio-manufactured charcoal as a drop-in replacement in comparison to standard charcoal for applications of interest to boost ignition performance. This work will produce a drop-in-replacement for a DoD-critical resource with improved characteristics
Rozumov, EugeneBird, DavidCrumbley, AnnaMorris, LaurenGrau, HenryWilson, DanielStern, AaronDecker, Robert
Time-Sensitive Networking (TSN) enhances Ethernet with features such as time synchronization, scheduled traffic, policing, and redundancy to enable highly deterministic and reliable communications in mission-critical systems. This paper presents a comprehensive approach to the configuration, analysis, and verification of TSN for critical systems, with a focus on time-sensitive applications such as tank barrel stabilization. The impact of different types of topologies, traffic types, and application requirements on the configuration complexity are presented along with various mathematical techniques to generate network solutions and verify against the system requirements. Detailed modeling, configuration, and analysis of TSN is demonstrated using a representative mixed criticality converged network. Lastly, configuration techniques to minimize the latency, jitter, and frame loss while maximizing the network utilization are presented.
Bush, Stephen F.Jabbar, Abdul
Thermal or infrared signature management simulations of hybrid electric ground vehicles require modeling complex heat sources not present in traditional vehicles. Fast-running multi-physics simulations are necessary for efficiently and accurately capturing the contribution of these electrical drivetrain components to vehicle thermal signature. The infrared signature and heat transfer simulation tool, “Multi-Service Electro-optic Signature” (MuSES), is being updated to address these challenges by expanding its thermal-electrical simulation capabilities, provide a coupling interface to system zero- and one-dimensional modeling tools, and model three-dimensional air flow and its convection effects. These simulation capabilities are used to compare the infrared signatures of a tactical ground vehicle with a traditional powertrain to a hybrid electric version of the same vehicle and demonstrate a reduction in contrast while operating under electrically powered conditions of silent watch and
Patterson, StevenEdel, ZacharyPryor, JoshuaRynes, PeteTison, NathanKorivi, Vamshi
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