| Methodically Modeling the Tor Network |
Aug 2012 |
10 pages |
| Authors:
Rob Jansen; Kevin Bauer; Nicholas Hopper; Roger Dingledine; MINNESOTA UNIV MINNEAPOLIS
|
 | Live Tor network experiments are difficult due to Tor's distributed nature and the privacy requirements of its client base. Alternative experimentation approaches such as simulation and emulation, must make choices about how to model various aspects of the Internet and Tor that are not possible or not desirable to duplicate or implement directly. This paper methodically models the Tor network by exploring and justifying every modeling choice required to produce ... |
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| Measuring Two-Event Structural Correlations on Graphs |
Aug 2012 |
13 pages |
| Authors:
Ziyu Guan; Xifeng Yan; Lance M Kaplan; CALIFORNIA UNIV SANTA BARBARA DEPT OF COMPUTER SCIENCE
|
| Real-life graphs usually have various kinds of events happening on them, e.g., product purchases in online social networks and intrusion alerts in computer networks. The occurrences of events on the same graph could be correlated, exhibiting either attraction or repulsion. Such structural correlations can reveal important relationships between different events. Unfortunately, correlation relationships on graph structures are not well studied and cannot be captured by traditional measures. |
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| Model Validation for Simulations of Vehicle Systems |
Aug 2012 |
15 pages |
| Authors:
David Lamb; Matthew Castanier; Hao Pan; Michael Kokkolaras; Gregory Hulbert; MICHIGAN UNIV ANN ARBOR DEPT OF MECHANICAL ENGINEERING
|
| This paper deals with model validation of dynamic systems (with vehicle systems being of particular interest) that have multiple time-dependent output. First, we review several validation methodologies that have been reported in the literature: graphical comparison, feature-based techniques, PDF/CDF based techniques, Bayesian posterior estimation, classical hypothesis testing and Bayesian hypothesis testing. We discuss their advantages and disadvantages in terms of several attributes: applicability to different types of models, need for ... |
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| Convoy Active Safety Technology - Environmental Understanding and Navigation With Use of Low Cost Sensors |
Aug 2012 |
7 pages |
| Authors:
David Simon; Bernard Theisen; ARMY TANK AUTOMOTIVE RESEARCH DEVELOPMENT AND ENGINEERING CENTER WARREN MI
|
| This paper will document the development of the Convoy Active Safety Technology (CAST) program, which was created to design a low cost, optionally manned vehicle (OMV) solution for tactical wheeled vehicle (TWV) fleet. This paper will describe the approach taken to integrate low cost sensors for understanding the environment sufficiently to accomplish convoy missions. This paper will also discuss the approach taken to develop the low cost guidance and navigation ... |
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| An Experimental Investigation to Improve Lead Acid Battery Recharging Algoriths for Environmental Performance |
Aug 2012 |
9 pages |
| Authors:
Yi Ding; Sonya Zanardelli; Stanley Jones; John Mendoza; Daniel Wang; ARMY TANK AUTOMOTIVE RESEARCH DEVELOPMENT AND ENGINEERING CENTER WARREN MI
|
| An experimental testing program has been developed that looks to optimize the battery recharging algorithms to improve battery lifetime and state of charge knowledge. The first phase of the testing targeted lead acid battery performance characterization as a function of controlled environmental temperatures. Subsequent testing includes performance testing under alternator recharging using default and proposed charging algorithms. A new experimental apparatus has been developed to integrate battery testing with alternator ... |
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| Quantifying the Effect of 3D Spatial Resolution on the Accuracy of Microstructural Distributions (PREPRINT) |
Aug 2012 |
11 pages |
| Authors:
Michael D Uchic; Michael Groeber; Megna Shah; Gregory Loughnane; Raghavan Srinivasan; Ramana Grandhi; Matthew Riley; AIR FORCE RESEARCH LAB WRIGHT-PATTERSON AFB OH STRUCTURAL MATERIALS DIV
|
| The choice of spatial resolution for experimentally-collected 3D microstructural data is often governed by general rules of thumb. For example, serial section experiments often strive to collect at least ten sections through the average feature-of-interest. However, the desire to collect high resolution data in 3D is greatly tempered by the exponential growth in collection times and data storage requirements. This paper explores the use of systematic down-sampling of synthetically-generated grain ... |
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| Combat ID - Combat Identification System |
Aug 2012 |
7 pages |
| Authors:
Garbis Salgian; Zsolt Kira; Raia Hadsell; Han-Pang Chiu; Xun Zhou; Bing-Bing Chai; SUPUN SAMARASEKERA; Bernard Theisen; Jeffery Ramsey; ARMY TANK AUTOMOTIVE RESEARCH DEVELOPMENT AND ENGINEERING CENTER WARREN MI
|
| This paper will document the development of the Combat Identification (CombatID) System. The CombatID System was designed to create a platform agnostic payload that could be attached to any fielded Unmanned Ground Vehicle (UGV) to assist the Soldier in contingency basing operations. This paper will describe the approach taken to develop the system and provide a detailed description of the system, including sample results for individual modules. This paper will ... |
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| MIMIC'D Abilities - Tools, Tool Changing, and Robotic Control |
Aug 2012 |
8 pages |
| Authors:
Jeremy Gray; Kenneth Gunnett; Douglas Peters; ARMY TANK AUTOMOTIVE RESEARCH DEVELOPMENT AND ENGINEERING CENTER WARREN MI
|
| Research is currently underway to improve controllability of high degree-of-freedome manipulators under a Phase II SBIR contract sponsored by the U.S. Army Tank Automotive Research, Development, and Engineering Center (TARDEC). As part of this program, the authors have created new control methods as well as adapting tool changing technology onto a dexterous arm to look at controllability of various manipulator functions. In this paper, the authors describe the work completed ... |
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| Damping and Vibration Mitigation: Critical Issues |
Aug 2012 |
29 pages |
| Authors:
Daniel J Inman; MICHIGAN UNIV ANN ARBOR DEPT OF AEROSPACE ENGINEERING
|
| Summary: Three Main Issues: Damping materials are temperature and frequency dependent. 2. Damping falls off in extreme environments. 3. There is a miss match damping as seen/measured by material engineers and structural engineers. Can multifunctional approaches solve these problems? |
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| Research of the Effects of Integration into Armor on the Performanec of Spintronic Microwave Detectors |
Aug 2012 |
7 pages |
| Authors:
Elena Bankowski; Thomas Meitzler; Tomas Pesys; ARMY TANK AUTOMOTIVE RESEARCH DEVELOPMENT AND ENGINEERING CENTER WARREN MI
|
| The authors studied the effects of different types of armor on the performance of spin-torque microwave detectors (STMD). Working prototypes of novel nano-sized spintronic sensors of microwave radiation for battlefield anti-radar and wireless communications applications are being integrated into Sensor Enhanced Armor (SEA) and Multifunctional Armor (MFA) and tested in SEA-NDE Lab at TARDEC. The preliminary theoretical estimations have shown that STMD based on the spin-torque effect in magnetic tunnel ... |
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| Linear Algebraic Modeling of Power Flow in the HMP500-3 Transmission |
Aug 2012 |
11 pages |
| Authors:
Matthew G McGough; ARMY TANK AUTOMOTIVE RESEARCH DEVELOPMENT AND ENGINEERING CENTER WARREN MI
|
| The HMPT500-3 is a split torque path hydrostatic / mechanical continuously variable transmission used in the Bradley Fighting Vehicle. Power transmission and steering is accomplished through the interaction of six planetary gear sets and two variable displacement hydrostatic pump / motor units (HSUs). Power flow in the HMPT500-3 is extremely complex, with numerous feedback paths within the planetary gear train. Without a clearly defined power flow path from gear set ... |
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| Victory Validation - An Introduction and Technical Overivew |
Aug 2012 |
7 pages |
| Authors:
Nikia Williams; Venu Siddapureddy; Doyle Dennis; Kase Saylor; Brian Fairburn; ARMY TANK AUTOMOTIVE RESEARCH DEVELOPMENT AND ENGINEERING CENTER WARREN MI
|
| For most standards bodies, the validation and maturation process is dependent on motivated members of the standards community to develop reference systems or components and to provide the governing body with the necessary data and details to support maturing a given specification or set of specifications. Although this has worked well for other standards bodies, the VICTORY Standards Support Office (VSSO) recognized early that validation would be key in rapidly ... |
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| Effect of Heat on Wounded Warriors in Ground Combat Vehicles: Insights from the Army Medical Community and the Simulation of a Novel Method for Soldier Thermal Control |
Aug 2012 |
30 pages |
| Authors:
Robert E Smith; Nathan A Tison; ARMY TANK AUTOMOTIVE RESEARCH DEVELOPMENT AND ENGINEERING CENTER WARREN MI
|
| Severe thermal conditions can exist within ground combat vehicles; although these vehicles are generally equipped with heating, ventilation, and cooling (HVAC) systems, the HVAC systems often lack sufficient cooling capacity under conditions of thermally severe weather, open-hatch operations, and significant amounts of on-board electronics. |
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| Open Management Group Data-Distribution Service (OMG-DDS) as a Data Transport for Vehicular Integration for C4ISR/EW Interoperability Services |
Aug 2012 |
19 pages |
| Authors:
Leonard Elliott; ARMY TANK AUTOMOTIVE RESEARCH DEVELOPMENT AND ENGINEERING CENTER WARREN MI
|
| VICTORY is a U.S. Army initiative to improve upon current military ground vehicle electronics architecture by providing C4ISR/EW system interoperability and portability. VDM and OMG-DDS P/S solutions appear to be suitable for addressing integration problems which fall into the current scope of VICTORY. |
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| Commercial Building Partners Catalyze Energy Efficient Buildings Across the Nation |
Aug 2012 |
13 pages |
| Authors:
Michael C Baechler; Heather E Dillon; Rosemarie Bartlett; PACIFIC NORTHWEST NATIONAL LAB RICHLAND WA
|
| In 2008 the US Department of Energy (DOE) launched the Commercial Buildings Partnership (CBP) project to accelerate market adoption of commercially available energy saving technologies into the design process for new and upgraded commercial buildings. The CBP represents a unique collaboration between industry leaders and DOE to develop high performance buildings as a model for future construction and renovation. CBP was implemented in two stages. This paper focuses on lessons ... |
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| Open Management Group Data Distribution Service (OMG-DDS) as a Data Transport for Vehicular Integration for C4ISR/EW Interoperability (VICTORY) Services |
Aug 2012 |
8 pages |
| Authors:
Leonard Elliott; Nikia Williams; Venu Siddapureddy; ARMY TANK AUTOMOTIVE RESEARCH DEVELOPMENT AND ENGINEERING CENTER WARREN MI
|
| A key objective of the Vehicular Integration for C4ISR/EW Interoperability (VICTORY) Architecture is to use open standards to increase the portability of C4ISR/EW systems and enhance interoperability within military ground vehicles. When possible these technologies are adopted by VICTORY and when existing specifications are inadequate, best-practices are used to develop the necessary adaptations. Many Commercial Off-The-Shelf (COTS) publish/subscribe messaging solutions are available and the Open Management Group (OMG) Data-Distribution Service ... |
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| Investigating the Mobility of Light Autonoumous Tracked Vehicles Using a High Performance Computing Simulation Capability |
Aug 2012 |
52 pages |
| Authors:
Dan Negrut; Hammad Mazhar; Daniel J Melanz; David Lamb; Paramsothy Jayakumar; Michael Letherwood; Abhinandan Jain; Marco Quadrelli; ARMY TANK AUTOMOTIVE RESEARCH DEVELOPMENT AND ENGINEERING CENTER WARREN MI
|
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| Evaluating Voltage Regulation Compliance of Mil-Pre-GCS600A(ARMY) for Vehicle On-Board Generators and Assessing Overall Vehicle Bus Compliance |
Aug 2012 |
8 pages |
| Authors:
Wesley G Zanardelli; John Kelly; ARMY TANK AUTOMOTIVE RESEARCH DEVELOPMENT AND ENGINEERING CENTER WARREN MI
|
| For the latest military vehicles being developed with high-voltage, on-board power generation systems, compliance with MIL-PRF-GCS600A(ARMY) is a prerequisite for vehicle bus stability. The primary component responsible for stability is the generator/controller. As part of MIL-PRF-GCS600A, the voltage regulation requirements for the generator sub-system can be validated in the laboratory. However, determining overall vehicle electrical system compliance before prototype integration is more difficult. The individual loads on the bus may ... |
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| A Method to Achieve High Fidelity in Internet-Distributed Hardware-in-the-Loop Simulation |
Aug 2012 |
14 pages |
| Authors:
Tulga Ersal; Youngki Kim; Ashwin Salvi; Jason Siegel; Anna Stefanopoulou; Jeffrey L Stein; Mark J Brudnak; Zoran Filipi; DETROIT MERCY UNIV MI DEPT OF MECHANICAL ENGINEERING
|
| One of the main challenges of co-simulating hardware-in-the-loop systems in real-time over the Internet is the fidelity of the simulation. The dynamics of the Internet may significantly distort the dynamics of the network-integrated system. This paper presents the development of an iterative learning control based approach to improve fidelity of such networked system integration. Towards this end, a new metric for characterizing fidelity is proposed first, which, unlike some existing ... |
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| Convoy Active Safety Technology: Environmental Understanding and Navigation with Use of Low Costs Sensors |
Aug 2012 |
12 pages |
| Authors:
Bernard Theisen; ARMY TANK AUTOMOTIVE RESEARCH DEVELOPMENT AND ENGINEERING CENTER WARREN MI
|
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| Development of Laboratory Testing Apparatus and Fatigue Analysis for Tracked Vehicle Rubber Backer Pads |
Aug 2012 |
10 pages |
| Authors:
Daniel Kujawski; Daren DiStefano; William Bradford; ARMY TANK AUTOMOTIVE RESEARCH DEVELOPMENT AND ENGINEERING CENTER WARREN MI
|
| The first part of this paper will outline the conception of the testing apparatus (Figure 1), along with its operation and preliminary results. The second part of the paper will discuss a new methodology used to correlate the dependence of crack growth rate for strain crystallizing natural rubbers in terms of tearing energy. The tearing energy which depends on the type of elastomer, geometry and stress strain behavior of a ... |
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| Reduced SWAP-C VICTORY Services Execution and Performance Evaluation |
Aug 2012 |
24 pages |
| Authors:
Mark Russell; UNIFIED BUSINESS TECHNOLOGIES INC TROY MI
|
| * Executing multiple VICTORY data services, and reading multiple VICTORY-compliant sensors at the same time resulted in the following performance measurements for the system - 0.64 Amps / 3.15 Watts Power Consumption at run-time. - Roughly 0.77% System Memory Utilization per Service - 1.05%, 0.433%, 0.531% average CPU utilization for Position, Direction of Travel, and Orientation Services, respectively. - Less than 1.7 milliseconds processing time (Building and Publishing Full Featured ... |
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| Effect of Heat on Wounded Warriors in Ground Combat Vehicles: Insights from the Army Medical Community, and the Simulation of a Novel Method for Soldier Thermal Control |
Aug 2012 |
9 pages |
| Authors:
Nathan Tison; Robert E Smith; ARMY TANK AUTOMOTIVE RESEARCH DEVELOPMENT AND ENGINEERING CENTER WARREN MI
|
| Ground combat vehicles can operate in regions characterized by various types and severities of injuries ? resulting from improvised explosive devices (IEDs), gunfire or heat illness ? as well as extreme climates such as desert environments. Because of the wounded warrior's compromised physical condition, their thermal surroundings within the vehicle is especially important. This paper presents insights gleaned from the Army medical community, as well as a simple study of ... |
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| TARDEC's Victory Systems Integration Laboratory (SIL) is a Key Tool for Advancing Standardized Ground Vehicle Electronic Architecture |
Aug 2012 |
7 pages |
| Authors:
Nikia Williams; Venu Siddapureddy; Leonard Elliott; Nathan Ellis; Patrick Griffin; Steve Reddmann; Heather Berry; Mark Russell; ARMY TANK AUTOMOTIVE RESEARCH DEVELOPMENT AND ENGINEERING CENTER WARREN MI
|
| The Vehicular Integration for C4ISR/EW Interoperability (VICTORY) Systems Integration Lab (SIL) is established and developed at the U.S. Army Tank-Automotive Research, Development, and Engineering Command (TARDEC). The VICTORY SIL will be utilized for the development and integration of the extensive set of C4ISR/EW technologies that are to be systematically down selected to provide the comprehensive VICTORY services & infrastructure required in the development of mission capabilities of the Army's tactical ... |
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| Bio-Inspired Intelligent Sensing Materials for Fly-by-Feel Autonomous Vehicle |
Aug 2012 |
68 pages |
| Authors:
STANFORD UNIV CA
|
| Advantages of UAV: Loser cost in manufacturing, reduced cost in maintenance and operation, energy saving for smaller size and minimal human risk. Goals: To develop an analytical technique for observability and controllability of large-scale, dynamic systems. To develop a bio-inspired data/information architecture for feature-based global diagnostics of a large-scale system. To develop a bio-inspired, feature-based reconfigurable control system to maintain vehicle functionality in the presence of system failures. Design a ... |
|
| Multi-Scale Simulation of Interfacial Phenomena and Nano-Particle Placement in Polymer Matrix Composites |
Aug 2012 |
32 pages |
| Authors:
John Kieffer; MICHIGAN UNIV ANN ARBOR DEPT OF MATERIALS SCIENCE AND ENGINEERING
|
| Outline: Simulation approach, Generating Realistic Structures, Structural Ubiquities, Property Prediction and Analysis of governing Principles and Summary and Outlook. |
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| Chain Dynamic Formulations for Multibody System Tracked Vehicles |
Aug 2012 |
24 pages |
| Authors:
Paramsothy Jayakumar; Michael D Letherwood; Michael Wallin; Ahmed K Aboubakr; Ahmed A Shabana; ILLINOIS UNIV AT CHICAGO DEPT OF MECHANICAL AND INDUSTRIAL ENGINEERING
|
| This paper is focused on the dynamic formulation of mechanical joints using different approaches that lead to different models with different numbers of degrees of freedom. Some of these formulations allow for capturing the joint deformations using discrete elastic model while the others are continuum-based and capture joint deformation modes that cannot be captured using the discrete elastic joint models. Specifically, three types of joint formulations are considered in this ... |
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| Large Platform Autonomy in Urban Environments |
Aug 2012 |
9 pages |
| Authors:
Chip DiBerardino; Edward Mottern; Tracy K van Lierop; Dariusz Mikulski; N J Kott; GENERAL DYNAMICS ROBOTIC SYSTEMS WESTMINSTER MD
|
| This paper describes aspects of the Safe Operations of Unmanned Systems for Reconnaissance in Complex Environments (SOURCE) Army Technology Objective (ATO) that affect urban terrain autonomous mobility R&D programs. The SOURCE ATO provides essential large platform autonomous capabilities for executing unmanned reconnaissance missions, such as leader-follower, move-on-route, tele-operation, and remote situational awareness. The system includes multi-modal, high resolution, all-digital sensors which support nighttime and daytime operations. The SOURCE ATO development ... |
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| Performance Results for a Universal Lithium Ion Battery Management System |
Aug 2012 |
13 pages |
| Authors:
Bruce Pilvelait; Carlos H Rentel; William Finger; Larry Ruckman; David Fogg; Gregory L Plett; Mike Marcel; CREARE INC HANOVER NH
|
| The advantages of lithium-based batteries over lead acid batteries have created great interest in developing safe and cost effective drop-in replacements. To achieve the required cost effectiveness and safety of the battery, Battery Management Systems (BMS) are critical to avoid over-charging, over-discharging, and continuously and accurately determining the State of Charge (SOC), State of Health (SOH), and State of Life (SOL) of the battery. In a program funded through a ... |
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| An Efficient Energy Management Strategy, Unique Power Split & Energy Distribution, Based on Calculated Vehicle Road Loads |
Aug 2012 |
14 pages |
| Authors:
Jeffery B Holtz; Faisal J Uppal; AVL POWERTRAIN ENGINEERING INC PLYMOUTH MI
|
| This paper presents energy management strategy that includes a novel power split and optimization approach for the FED BRAVO program. AVL is responsible for developing and delivering the full hybrid propulsion system integrated into the Fuel Efficient Demonstrator (FED) Bravo vehicle, designed by PRIMUS. The developed energy management algorithm calculates component energy availability, driver demanded torque and manages the distribution of power between propulsion components. This includes a real-time, road ... |
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| Powertrain Embedded Diagnostic and Predictive Capability for an Automotive Transmission |
Aug 2012 |
13 pages |
| Authors:
Jim Bechtel; Larry Marino; Mitchell Lebold; Scott Pflumm; Jeffrey Banks; Jason Hines; Jonathan Bednar; PENNSYLVANIA STATE UNIV STATE COLLEGE APPLIED RESEARCH LAB
|
| This report documents the investigation of a vibration-based diagnostic approach developed for automotive transmissions. Data was recorded throughout three durability tests that were conducted by the transmission OEM. Rebuilt transmissions were operated around the clock under the most demanding speed and load set-points until critical gear or bearing failures resulted in loss of operability. The analysis results indicate that an embedded diagnostic and predictive capability can be implemented for military ... |
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| The TARDEC Advanced Systems Engineering Capability (ASEC) |
Aug 2012 |
8 pages |
| Authors:
Pradeep Mendonza; ARMY TANK AUTOMOTIVE RESEARCH DEVELOPMENT AND ENGINEERING CENTER WARREN MI
|
| Systems Engineering (SE) is a knowledge-based process. Its success depends on timely, efficient and effective knowledge capture, sharing of that knowledge among a diverse set of system stakeholders, and formulation of the system trade space to enable decision makers choose a balanced solution to the problem. As system complexity grows, the challenge for precise capture of SE knowledge compounds, resulting in increased demands on SE practitioners to effectively capture and ... |
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| Crowdsourcing: A Primer and Its implications for Systems Engineering |
Aug 2012 |
12 pages |
| Authors:
Richard J Gerth; Alex Burnap; Panos Papalambros; MICHIGAN UNIV ANN ARBOR
|
| Crowdsourcing is an overarching term that denotes a number of ways to use the web as means to enlist a large number of individuals to perform a particular task. The tasks can range from simply providing an opinion, to contributing material, to solving a problem. Because the term crowdsourcing is used to denote a variety of activities in many different contexts, strong opinions have formed in many minds. This paper ... |
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| Technical Risk Assessment: Increasing the Value of Technology Readiness Assessment (TRA) |
Aug 2012 |
8 pages |
| Authors:
Rebecca Addis; ARMY TANK AUTOMOTIVE RESEARCH DEVELOPMENT AND ENGINEERING CENTER WARREN MI
|
| As the Army focuses to modernize existing ground vehicle fleets and develop new ground vehicle platforms, Program Managers are faced with the challenge of how to best choose a set of technologies for the vehicle that will be mature, be able to be integrated onto the platform, and have the capability to meet defined requirements. To accomplish this, the Tank Automotive Research, Development and Engineering Center (TARDEC) Systems Engineering Group ... |
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| Simulation of Thermal Signature of Tires and Tracks |
Aug 2012 |
15 pages |
| Authors:
Robert E Smith; Tian Tang; Daniel Johnson; Emily Ledbury; Thomas Goddette; Sergio D Felicelli; MISSISSIPPI STATE UNIV MISSISSIPPI STATE CENTER FOR ADVANCED VEHICULAR SYSTEMS
|
| Rubber is the main element of tires and the outside layer of tracks. Tire and track heating is caused by hysteresis effects due to the deformation of the rubber during operation. Tire temperatures can depend on many factors, including tire geometry, inflation pressure, vehicle load and speed, road type and temperature and environmental conditions. The focus of this study is to develop a finite element approach to computationally evaluate the ... |
|
| A High Power Solid State Circuit Breaker for Military Hybrid Electric Vehicle Applications |
Aug 2012 |
10 pages |
| Authors:
Bruce Pilvelait; Calman Gold; Mike Marcel; DRS TEST AND ENERGY MANAGEMENT INC HUNTSVILLE AL
|
| Military vehicle electrical power systems require quickly responding fault protection to prevent mission failure, vehicle damage, or personnel injury. The electromechanical contactors commonly used for HEV protection have slow response and limited cycle life, factors which could result in fuse activation and disabling of the vehicle, presenting a dangerous situation for the soldier. A protection technology not often considered is Solid State Circuit Breakers (SSCB), which have fast response and ... |
|
| Defense System Perspectives on Multifunctional Design for Actuation |
Aug 2012 |
10 pages |
| Authors:
Edward V White; BOEING CO ST LOUIS MO
|
| Summary: Adaptive Structures (applied to large structures) requires technology development in three areas.: Compact, weight efficient variable geometry load paths, Large deformation/load bearing skins/fairings and Integrated/Distributed Actuation. Design of Adaptive Airframes must be performed as part of system level trade studies and optimization. The development of tools (particularly objective functions) to do this lags significantly behind the research SOA. Multifunctional design is both the savior and the bane of Adaptive ... |
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| Modernizing the Opposed-Piston Engine for More Efficient Military Ground Vehicle Applications |
Aug 2012 |
10 pages |
| Authors:
Laurence Fromm; Randy Herold; John Koszewnik; Gerhard Regner; ACHATES POWER INC SAN DIEGO CA
|
| This paper provides a brief historical look at opposed-piston, two-stroke (OP2S) engines and their use in military applications. It also highlights the engine's fundamental architectural advantages. In addition, the paper introduces the Achates Power opposed-piston engine, providing detailed, measured results of its power density, thermal efficiency and low heat rejection. Furthermore, the paper includes an overview of the fundamental challenges of OP2S engines, along with a discussion of how Achates ... |
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| Suspension Parameter Measurements of Wheeled Military Vehicles |
Aug 2012 |
10 pages |
| Authors:
Aleksander Kurec; Amandeep Singh; Igor Baseski; Thomas Skorupa; Dale Andreatta; Gary Heydinger; Anmol Sidhu; Ronald Bixel; SEA LTD COLUMBUS OH
|
| At the request of the US Army's Tank Automotive Command (TACOM) a device was built to measure the suspension parameters of any military wheeled vehicle. This is part of an ongoing effort to model and predict vehicle dynamic behavior. The new machine is called the Suspension Parameter Identification and Evaluation Rig (SPIdER) and has a capacity intended to cover all of the military's wheeled vehicles. The machine operates by holding ... |
|
| Improved Engine Performance and Efficiency Utilizing a Superturbocharger |
Aug 2012 |
8 pages |
| Authors:
Thomas Waldron; Ed VanDyne; Jared Brown; VANDYNE SUPERTURBO INC FORT COLLINS CO
|
| The need for current and future military vehicles to include more powerful and efficient powertrains is critical to both improving operational performance and reducing logistical burden. VanDyne SuperTurbo Inc. is working jointly with TARDEC and OEM partners to develop and field a revolutionary technology that simultaneously increases available engine power and reduces overall fuel consumption. The ability to incorporate efficient supercharging will allow vehicles to accelerate faster in combat situations ... |
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| Plant-Mimetic Heat Pipes for Operation with Large Inertial and Gravitational Stresses |
Aug 2012 |
44 pages |
| Authors:
Abraham Stroock; N M Holbrook; Maciej Zwieniecki; CORNELL UNIV ITHACA NY SCHOOL OF CHEMICAL ENGINEERING
|
| These briefing charts discuss biomolecular insights, synthetic physiology, biophysical insights and integrated understanding. |
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| Monolithically Integrated Micro Flapping Vehicles |
Aug 2012 |
24 pages |
| Authors:
Jeffrey S Pulskamp; Ronald G Polcawich; Gabriel L Smith; Christopher M Kroninger; ARMY RESEARCH LAB ADELPHI MD
|
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| Spatially Targeted Activation of a SMP Based Reconfigurable Skin System |
Aug 2012 |
18 pages |
| Authors:
Gregory Reich; James Joo; Richard Beblo; Brian Smyers; John Puttmann; AIR FORCE RESEARCH LAB EDWARDS AFB CA AEROSPACE SYSTEMS DIRECTORATE
|
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| Microvascular Materials for Mass and Energy Transport |
Aug 2012 |
|
| Authors:
Du Nguyen; Y Leho; Aaron P Esser-Kahn; CALIFORNIA UNIV IRVINE DEPT OF CHEMICAL ENGINEERING AND MATERIALS SCIENCE
|
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| Black Silicon for Next-Generation Infrared Sensors |
Aug 2012 |
35 pages |
| Authors:
Jeffrey Warrender; ARMY ARMAMENT RESEARCH DEVELOPMENT AND ENGINEERING CENTER PICATINNY ARSENAL NJ
|
| Laser hyperdoped black silicon can be made by two different approaches, Similar properties, Flat black silicon easier to study Strong sub band gap absorption, High EQE out to 1200 nm, ARDEC seeks to extend strong device response to 1700 nm, Fundamental and practical questions abound. |
|
| Assessment of DEMN-based IM Formulations for Octol Replacement |
Aug 2012 |
14 pages |
| Authors:
Neelam Mehta; Brian D Roos; Eric J Bukowski; ARMY RESEARCH LAB ABERDEEN PROVING GROUND MD WEAPONS AND MATERIALS RESEARCH DIRECTORATE
|
| Octol, a high energy explosive composed of cyclotetramethylene-tetranitramine (HMX) and trinitrotoluene (TNT), is a commonly used explosive fill in several anti-armor warheads. In order to solve the viscosity problems experienced during loading, several Octol analogs were developed such as the 75/25, 70/30 and 65/35 HMX/TNT formulations. However, to meet IM requirements, shock sensitive TNT needs to be replaced within the formulations. At the October 2007 IM/EM conference, sensitivity and performance ... |
|
| ARL Summer Student Research Symposium. Volume 2: Compendium of Abstracts |
Aug 2012 |
190 pages |
| Authors:
ARMY RESEARCH LAB ADELPHI MD
|
| The ARL Summer Student Research Symposium is an ARL Director's Award Program for all the students participating in various summer scholarship and contract activities across ARL. The goal of the program is to recognize and publicize exceptional achievements made by the students and their mentors in the support of Army science. All college undergraduate and graduate students receiving research appointments and conducting summer studies at ARL are automatically enrolled in ... |
|
| ARL Summer Student Research Symposium. Volume 1: Select Papers |
Aug 2012 |
210 pages |
| Authors:
ARMY RESEARCH LAB ADELPHI MD
|
| The ARL Summer Student Research Symposium is an ARL Director's Award Program for all the students participating in various summer scholarship and contract activities across ARL. The goal of the program is to recognize and publicize exceptional achievements made by the students and their mentors in the support of Army science. All college undergraduate and graduate students receiving research appointments and conducting summer studies at ARL are automatically enrolled in ... |
|
| ETS Gene Fusions as Predictive Biomarkers of Resistance to Radiation Therapy for Prostate Cancer |
Aug 2012 |
62 pages |
| Authors:
Felix Feng; MICHIGAN UNIV ANN ARBOR
|
| The research goals of this grant proposal are to: 1) investigate the effect of ETS gene fusions on radiation phenotype in pre- clinical models of prostate cancer, 2) to explore the mechanism of interaction between ERG (the predominant ETS gene fusion product) and the DNA repair protein DNA-PK, and 3) to determine if ETS gene fusion status is a clinical biomarker of radioresistance for prostate cancer. The training goals of ... |
|
| Thin Film PZT Piezo MEMS for Micro-Robotic Angular Rate Sensing and Rotary Actuation |
31 Jul 2012 |
28 pages |
| Authors:
Gabriel Smith; Ryan Rudy; Don DeVoe; Sarah Bedair; William Nothwang; Jeffrey Pulskamp; Luz Sanchez; Rob Proie; Vishnu Ganesan; Joe Conroy; Ron Polcawich; ARMY RESEARCH LAB ADELPHI MD
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Reports by Keyword(s)
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