| Application of Computational M&S for Ground Vehicles at TARDEC |
23 Sep 2011 |
9 pages |
| Authors:
Sudhakar Arepally; ARMY TANK AUTOMOTIVE RESEARCH DEVELOPMENT AND ENGINEERING CENTER WARREN MI
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 | Analytics is the Army's premier organization for providing fast, accurate System Level ground vehicle system M&S services. In-house engineering analysts perform Soldier-centric vehicle assessments of new systems and modifications to existing systems. The CASSI (Concepts / Analysis / System Simulation / Integration) program provides modeling and simulation (M&S) services to integrate and assess the impacts of new concepts/technologies and changes to existing systems. |
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| Development of a Flow Solver with Complex Kinetics on the Graphic Processing Units |
22 Sep 2011 |
21 pages |
| Authors:
Hai P Le; Jean-Luc Cambier; AIR FORCE RESEARCH LAB EDWARDS AFB CA PROPULSION DIR/SPACE AND MISSILE PROPULSION DIV/SPACECRAFT BRANCH
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| The current paper reports on the implementation of a numerical solver on the Graphic Processing Units (GPU) to model reactive gas mixture with detailed chemical kinetics. The solver incorporates high-order finite volume methods for solving the fluid dynamical equations coupled with stiff source terms. The chemical kinetics are solved implicitly via an operator-splitting method. We explored different approaches in implementing a fast kinetics solver on the GPU. The detail of ... |
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| Mathematical Modeling to Reduce the Cost of Complex System Testing: Characterizing Test Coverage to Assess and Improve Information Return |
21 Sep 2011 |
88 pages |
| Authors:
Karl D Pfeiffer; Valery A Kanevsky; Thomas J Housel; NAVAL POSTGRADUATE SCHOOL MONTEREY CA GRADUATE SCHOOL OF OPERATIONAL AND INFORMATION SCIENCES
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| Effective, cost-efficient testing is critical to the long-term success of Open Architecture within the Navy's Integrated Warfare System. In previous research, we developed a simple, effective framework for examining the testing of complex systems. This model and its prototype decision aid provide a rigorous yet tractable approach to improve system testing, and to better understand and document the system and component interdependencies across the enterprise. An integral part of this ... |
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| Allometric Scaling of Decompression Sickness Risk in Terrestrial Mammals |
11 Sep 2011 |
7 pages |
| Authors:
Andreas Fahlman; Peter L Tyack; Richard Mahon; WOODS HOLE OCEANOGRAPHIC INSTITUTION MA
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| The objective with this study is to determine if there is an allometric relationship between body mass and decompression sickness (DCS) risk over a large range of terrestrial mammals. We have modified a previously published probabilistic model to assess DCS risk for different species. The results will help determine if studies performed in different species and body sizes can be compared or if there are differences in risk not attributable ... |
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| Uncertainty-Based Self Configuring Simulation for Design Support |
09 Sep 2011 |
7 pages |
| Authors:
Roger A Dougal; Ferdinanda Ponci; SOUTH CAROLINA UNIV COLUMBIA DEPT OF ELECTRICAL AND COMPUTER ENGINEERING
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| The authors introduce the idea of using a criterion based on uncertainty propagation for appropriate detail for a model given a simulation task. A guideline to achieve this goal is proposed. A process to synthesize the differences in accuracy between the levels of the model of a component is developed so that the proposed guideline can be implemented in a solver. This approach comprises a preliminary simulation of the components, ... |
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| Millimeter-wave Interferometric Sensing |
Sep 2011 |
20 pages |
| Authors:
Charles R Dietlein; Amir Zaghloul; David A Wikner; ARMY RESEARCH LAB ADELPHI MD SENSORS AND ELECTRON DEVICES DIRECTORATE
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| Millimeter-wave sensing systems designed for imaging almost always produce inferior images compared to their infrared and visible wavelength counterparts for a variety of fundamental reasons. These reasons include low detector/pixel count, poor signal-to-noise ratio, artifacts introduced by illumination, and issues arising from calibration or scanning schemes. This research effort is intended to address the issue of low-detector-count focal-plane arrays (FPA). Radio astronomers have dealt with this issue for many decades ... |
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| Applying Massively Parallel Kinetic Monte Carlo Methods to Simulate Grain Growth and Sintering in Powdered Metals |
Sep 2011 |
121 pages |
| Authors:
Aaron M Hay; NAVAL POSTGRADUATE SCHOOL MONTEREY CA
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| Kinetic Monte Carlo (KMC) simulation methods were utilized to study the grain growth and sintering of nanocrystalline metal compacts. Sintering is the process used to fabricate materials from powders by densifying the powder compact at elevated temperatures. Recently, experimental literature has demonstrated that nanoparticles ( 50 nm) can be used to bond materials at dramatically lower temperatures and pressures while maintaining the mechanical properties of nanostructured materials. Despite these promising ... |
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| Improving Health-care Delivery for Post-Traumatic Stress Disorder: An Interrelated Approach Leveraging Systems Engineering and Optimization |
Sep 2011 |
79 pages |
| Authors:
Scott A McKenzie; NAVAL POSTGRADUATE SCHOOL MONTEREY CA
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| Post-Traumatic Stress Disorder (PTSD), major depression, anxiety disorders, and other post-deployment adjustment difficulties affect a significant number of veterans returning from Operation Iraq Freedom and Operation Enduring Freedom. To contend with this new influx of veterans suffering from the psychological aftermath of military combat, the VA has been proactive, including commissioning this study of their PTSD health-care delivery system. Its objective is to provide the best care, in the most ... |
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| Changing the Paradigm: Simulation, a Method of First Resort |
Sep 2011 |
105 pages |
| Authors:
Ben L Anderson; NAVAL POSTGRADUATE SCHOOL MONTEREY CA
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| The computing capability to which Operations Research (OR) analysts have access today is over 1,000,000,000 times more powerful than the first simulation pioneers had sixty years ago, yet the concept that simulation is a method of last resort still plagues the OR community. Many real-world problems are complex, with properties such as high dimensionality, non-linear effects, stochastic elements, and dependence between variables. Solving these problems analytically often requires simplifying assumptions, ... |
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| A Quantitative Model for Assessing Visual Simulation Software Architecture |
Sep 2011 |
143 pages |
| Authors:
Robert W Harder; NAVAL POSTGRADUATE SCHOOL MONTEREY CA DEPT OF COMPUTER SCIENCE
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| The U.S. military is the largest single user of simulation in the world, and our visual simulations can be softwareintensive systems with a lifespan of many years. Managers of these simulations need tools to help them make better decisions at the architectural level. Currently, no such quantitative models with supporting metrics exist for this purpose. There are properties that are held as positive characteristics in visual simulation architectures. Visual simulation ... |
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| Representing Trust in Cognitive Social Simulations |
Sep 2011 |
85 pages |
| Authors:
Shawnoah Pollock; NAVAL POSTGRADUATE SCHOOL MONTEREY CA MODELING VIRTUAL ENVIRONMENTS AND SIMULATION (MOVES)
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| Trust plays a critical role in communications, strength of relationships, and information processing at the individual and group levels. Cognitive social simulations show promise in providing an experimental platform for the examination of social phenomena such as trust formation. This work is a novel attempt at trust representation in a cognitive social simulation using reinforcement learning algorithms. Initial algorithm development was completed within a standalone social network simulation and tested ... |
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| Adaptive Discrete Event Simulation for Analysis of Harpy Swarm Attack |
Sep 2011 |
59 pages |
| Authors:
Bradon J Cobb; NAVAL POSTGRADUATE SCHOOL MONTEREY CA
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| Harpy swarm attacks are a new type of threat designed for Suppression of Enemy Air Defenses. Research into combating Harpy swarm attacks has been conducted but the simulation software used to date, Naval Simulation System, is inadequate for future research. A new and mission-focused simulation tool is necessary in order to advance research in defensive tactics against Harpy and other unmanned aerial vehicle threats (UAV). This research develops a simulation ... |
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| Use of the IMPRINT-CGTME Model: Notional Acquisition Problem |
Sep 2011 |
44 pages |
| Authors:
COAST GUARD NEW LONDON CT RESEARCH AND DEVELOPMENT CENTER
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| The annotated briefing titled Integrated HSI-System Model Demonstration demonstrated that different mission performance estimates can be obtained from a traditional constructive simulation used to support acquisition trade-studies versus an integrated simulation environment in which a detailed model of a human operator is combined with the traditional constructive simulation. In response to those findings, the U. S. Coast Guard (USCG) Research & Development Center (RDC) developed this briefing to share this ... |
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| Guess Again (and Again and Again): Measuring Password Strength by Simulating Password-Cracking Algorithms |
31 Aug 2011 |
22 pages |
| Authors:
Patrick G Kelley; Saranga Komanduri; Michelle L Mazurek; Rich Shay; Tim Vidas; Lujo Bauer; Nicolas Christin; Lorrie F Cranor; Julio Lopez; CARNEGIE-MELLON UNIV PITTSBURGH PA CYLAB
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| Text-based passwords remain the dominant authentication method in computer systems, despite significant advancement in attackers' capabilities to perform password cracking. In response to this threat, password composition policies have grown increasingly complex. However, there is insufficient research defining metrics to characterize password strength and evaluating password-composition policies using these metrics. In this paper, we describe an analysis of 12,000 passwords collected under seven composition policies via an online study. We ... |
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| The Evaluation of End-of-Repair/End-of-Maintenance Dates for Electronic Assemblies |
30 Aug 2011 |
19 pages |
| Authors:
Peter Sandborn; Anthony Konoza; III Nelson Raymond; Doug Gerdes; Mike Shamet; MARYLAND UNIV COLLEGE PARK CENTER FOR ADVANCED LIFE CYCLE ENGINEERING (CALCE)
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| Electronic systems consist of multiple cards each containing multiple parts. Many parts become obsolete long before the system support is terminated. How long can legacy systems drawing from existing nonreplenishable inventories of parts and cards be sustained? This project used a stochastic discrete event simulator to track all instances of all parts in the system until repair requests cannot be fulfilled. This provides quantitative (simulation-based) analysis of: 1. The length ... |
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| Time Domain Reflectometry for Damage Detection of Laminated CFRP plate |
18 Aug 2011 |
|
| Authors:
Akira Todoroki; TOKYO INST OF TECH (JAPAN) DEPT OF MECHANICAL ENGINEERING
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| Recently, high toughness Carbon Fiber Reinforced Polymer (CFRP) laminates are used to primary structures. The tough CFRP yields small fiber breakages when delamination crack is made in many cases. This requires a detection system of fiber breakages at low cost for large laminated CFRP structures. In the previous study, Time Domain Reflectometry (TDR) method is adopted for the detection of the fiber breakages of the CFRP plate. In the present ... |
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| Scalable Power-Component Models for Concept Testing |
17 AUG 2011 |
9 pages |
| Authors:
Michael S. Mazzola; G. M. Molen; Stephen Phillips; Matthew Young; Charles Billberry; Angela Card; James Gafford; Denise Kramer; Michael Pozolo; ARMY TANK AUTOMOTIVE RESEARCH DEVELOPMENT AND ENGINEERING CENTER WARREN MI
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| This paper describes next generation modeling tools to solve a basic problem of concept analysis, which is the lack of component models that realistically estimate the performance of technology that has yet to be fully reduced to specific products. Three important classes of electric power components essential to future Army vehicles are addressed: integrated electric machines, battery energy storage, and traction motor drives. Behavior models are delivered in a common ... |
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| Autoignition Characteristics of Low Cetane Number JP-8 and Approaches for Improved Operation in Military Diesel Engines |
09 AUG 2011 |
11 pages |
| Authors:
Naeim Henein; Walter Bryzik; Chandrasekharan Jayakumar; Eric R. Sattler; Nicholas C. Johnson; Nichole K. Hubble; ARMY TANK AUTOMOTIVE RESEARCH DEVELOPMENT AND ENGINEERING CENTER WARREN MI
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| Problems resulting from the use of low-Cetane Number (CN) JP-8 in military diesel engines are mainly caused by the poor autoignition quality of the fuel that requires a long period between the start of injection and the start of combustion. A detailed analysis of the processes which occur during the ignition delay period clearly shows that the start of combustion is preceded by a long period where the Low Temperature ... |
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| Intelligent Energy Management in a Two Power-Bus Vehicle System |
09 Aug 2011 |
36 pages |
| Authors:
ZhiHang Chen; Yi L Murphey; Zheng Chen; Abul Masrur; Chris Mi; ARMY TANK AUTOMOTIVE RESEARCH DEVELOPMENT AND ENGINEERING CENTER WARREN MI
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| Development of High Fidelity Mobility Simulation of an Autonomous Vehicle in an Off-Road Scenario Using Integrated Sensor, Controller, and Multi-Body Dynamics |
04 Aug 2011 |
28 pages |
| Authors:
Jayakumar; Smith; Ross; Jategaonkar; Konarzewski; ARMY TANK AUTOMOTIVE RESEARCH DEVELOPMENT AND ENGINEERING CENTER WARREN MI
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| A User-Friendly Tool for Evaluationg the Thermal Response of High Power Battery Packaging Alternatives |
02 AUG 2011 |
17 pages |
| Authors:
Stanley Jones; John Mendoza; George Frazier; Sonya Zanardelli; ARMY TANK AUTOMOTIVE RESEARCH DEVELOPMENT AND ENGINEERING CENTER WARREN MI
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| Latest generation of high power battery cells are often comprised of multiple alternating layers of anode, cathode, separator and electrolyte. Macroscopically, battery cores represent an orthotropic material subject to a time variant heat source. Safety and performance considerations place a premium on packaging design and installation thermal maintenance. SAIC has developed a numerical solver tool to evaluate thermal performance of packaging alternatives. |
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| Enabling Computational Dynamics in Distributed Computing Environments Using a Heterogeneous Computing Template |
01 Aug 2011 |
47 pages |
| Authors:
Dan Negrut; David Gorsich; David Lamb; Toby Heyn; Andrew Seidl; Dan Melanz; ARMY TANK AUTOMOTIVE RESEARCH DEVELOPMENT AND ENGINEERING CENTER WARREN MI
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| This briefing looks at the use of High Performance Computing (HPC) to simulate the dynamics of real-life engineering mechanical systems at unprecedented levels of accuracy. HPC will soon enable simulation of billion-body problems. |
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| Communication and Distributed Control in Multi-Agent Systems |
AUG 2011 |
63 pages |
| Authors:
Angelo Cangelosi; Fabio Ruini; PLYMOUTH UNIV (UNITED KINGDOM)
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| This project has focused on the design of distributed autonomous controllers for collective behavior of Micro-unmanned Aerial Vehicles (MAVs). Two alternative approaches to this topic are introduced: one based upon the Evolutionary Robotics (ER) paradigm, the other one upon flocking principles. Three computer simulators have been developed in order to carry out the required experiments, all of them having their focus on the modeling of fixed-wing aircraft flight dynamics. The ... |
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| Evolution of Occupant Survivability Simulation Framework Using FEM-SPH Coupling |
AUG 2011 |
16 pages |
| Authors:
Daniel Dooge; Ramesh Dwarampudi; Grant Schaffner; Adam Miller; Ravi Thyagarajan; Madanmohan Vunnam; Venkatesh Babu; ARMY TANK AUTOMOTIVE RESEARCH DEVELOPMENT AND ENGINEERING CENTER WARREN MI
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| To reduce the hazard for service personnel involved in current field operations, it is necessary to improve the safety and structural integrity of transport vehicles subjected to buried explosive material. Numerical simulation of the detonation effects of an Improvised Explosive Device (IED) on a vehicle and its occupants can provide tremendous value in this effort. Such events involve a range of complex phenomena at various dimensional and temporal scales, and ... |
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| Numerical Simulation of Ultra-Fast Pulse Propagation in Two-Photon Absorbing Medium |
Aug 2011 |
23 pages |
| Authors:
Raivo Stern; Aleks Rebane; NATIONAL INST OF CHEMICAL PHYSICS AND BIOPHYSICS TALLINN (ESTONIA)
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| Developed a versatile numerical technique that allows us to calculate the energy, the temporal shape, the spectrum and the phase of an ultrashort pulse propagating in multi-photon absorbing medium with fully realistic spectral shapes and absorption profiles. This approach is based on solving straightforward ODE instead of Maxwell-Bloch type equations, which usually require FTDT calculations. Furthermore, the solver is implemented using 100% commercial software (Mathematica ver. 8) running on a ... |
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| Dynamic Structural Flexible-Beam Response to a Moving Barge Train Impact Force Time-History Using Impact_Beam |
Aug 2011 |
303 pages |
| Authors:
Robert M Ebeling; Abdul N Mohamed; Jose R Arroyo; Barry C White; Ralph W Strom; Bruce C Barker; ENGINEER RESEARCH AND DEVELOPMENT CENTER VICKSBURG MS INFORMATION TECHNOLOGY LAB
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| To design simply-supported, flexible impact beams spanning between cells or bents for lock approach walls, a dynamic structural analysis of the beam under impact time-history loads for design- specific barge trains is required. At several locks, this flexible structural feature is the primary structural member resisting the glancing-blow impact event of a barge train as it aligns itself with a lock. This technical report describes an engineering methodology used to ... |
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| How Does Emotion Influence Collaboration? - An Agent Based Simulation of the Dynamic of Confrontation |
Aug 2011 |
114 pages |
| Authors:
Utomo S Putro; INSTITUTE OF TECHNOLOGY BANDUG (INDONESIA)
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| This is a report of a project to investigate the dynamics of interaction and conflicts among agents using drama theory in Citarum River basin problems. There are hundreds of agents involved in the conflict in the Citarum River Basin. These agents consist of central government agencies, provincial government agencies, city agencies / counties and villages, state-owned enterprises, NGOs at the regional level and NGOs at local level. There are many ... |
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| Forecasting the Relative and Cumulative Effects of Multiple Stressors on At-risk Populations |
Aug 2011 |
386 pages |
| Authors:
Joshua L Lawler; Chad B Wilsey; Betsy A Bancroft; WASHINGTON UNIV SEATTLE COLL OF FOREST RESOURCES
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| The goal of project RC-1541 was to develop and demonstrate a flexible, spatially explicit population model for investigating the effects of multiple stressors on at-risk populations. Demonstration involved using the model to assess the impacts of multiple stressors including climate change, land-use change, training maneuvers, environmental stochasticity, land and pest management, and disease on three different at-risk species on three DoD installations. |
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| Further Studies into Synthetic Image Generation using CameoSim |
Aug 2011 |
47 pages |
| Authors:
A Brady; S Kharabash; DEFENCE SCIENCE AND TECHNOLOGY ORGANISATION EDINBURGH (AUSTRALIA)
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| Previous work by DSTO described the synthetic image generation process using CameoSim and RadThermIR; this report describes the progress made on the modelling of atmospheres, terrains and sensors. A major source of error in the synthetic image generation process previously identified has been resolved. The error concerns the use of interpolation in CameoSim when it uses MODTRAN to incorporate atmospheric effects in synthetic images. A software tool has been created ... |
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| Using Computer Models to Identify Common Therapeutic Targets in Host Adapted Bacterial Threat Agents |
Aug 2011 |
56 pages |
| Authors:
Simon Daefler; MOUNT SINAI SCHOOL OF MEDICINE NEW YORK
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| This proposal seeks to develop computer algorithms for the evaluation of metabolic pathways in bacterial biothreat agents that can be exploited as therapeutic targets. We have completed genome-scale metabolic models for Francisella Schu4 (type A strain, Francisella LVS (type B), Burkholderia mallei, and Burkholderia pseudomallei. Some models were validated by metabolic assays, growth experiments in defined media, and transcriptomic data. Algorithms were developed and implemented for genome scale in silico ... |
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| Analysis of System Training Impact for Major Defense Acquisition Programs |
Aug 2011 |
88 pages |
| Authors:
Robert A Wisher; Frederick E Hartman; Charles G Sanders; Anthony Ciavarelli; NAVAL POSTGRADUATE SCHOOL MONTEREY CA MODELING VIRTUAL ENVIRONMENTS AND SIMULATION (MOVES)
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| Training prepares individuals, teams, and leaders to operate and maintain the vast array of systems that are being acquired, modernized, updated, and enhanced to provide operational capabilities. If a human cannot be properly trained, the entire system will function sub-optimally. This study examined the time-course results of planning and executing training from the inception of a new system to its acquisition and support after fielding, in particular for Major Defense ... |
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| Simulation Learning PC Screen-Based vs. High Fidelity |
Aug 2011 |
66 pages |
| Authors:
Kristine Qureshi; Denise H Chadwick; Judy Carlson; Lorrie Wong; Deborah Juarez; Dale Vincent; HAWAII UNIV HONOLULU
|
| As the number and complexity of disasters increases across the world, increased attention is being paid to disaster and trauma nursing. Since 2001, the US has experienced numerous significant natural, technological and human made disasters. Presently, a large number of military nurses are directly involved in providing care to wounded soldiers on the battlefields of Iraq, Afghanistan, and other areas throughout the world. Core disaster nursing competencies have been identified, ... |
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| Target Modeling for Ground Mobile Branch (GMB) |
Aug 2011 |
13 pages |
| Authors:
Matthew Schulz; ARMY RESEARCH LAB ABERDEEN PROVING GROUND MD SURVIVABILITY/LETHALITY ANALYSIS DIRECTORATE
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| This report documents my efforts and the insights I have gained while serving as a target modeler for the Ground Mobile Branch (GMB) of the Survivability Lethality Analysis Directorate (SLAD). In support of the Branch's role of providing modeling and simulation support through the ballistic analysis of current and future vehicular systems, my primary task was to gain knowledge and insight into the analysis process through understanding the role SLAD ... |
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| Adaptive Virtual Support Vector Machine for the Reliability Analysis of High-Dimensional Problems |
Aug 2011 |
14 pages |
| Authors:
Hyeongjin Song; Kyung K Choi; Ikjin Lee; Liang Zhao; David Lamb; IOWA UNIV IOWA CITY DEPT OF MECHANICAL AND INDUSTRIAL ENGINEERING
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| In this study, an efficient classification methodology is developed for reliability analysis that maintains an accuracy level similar to or better than existing response surface methods. Sampling-based reliability analysis requires only classification information, a success or a failure, but response surface methods provide real function values as their output, which requires more computational effort. The situation is more challenging with high-dimensional problems due to the curse of dimensionality. In the ... |
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| Forecasting Irregular Warfare via Agent-Based Network Models |
15 JUL 2011 |
13 pages |
| Authors:
Armando Geller; Claudio Cioffi-Revilla; Maciej M. Latek; Seyed M. Mussavi Rizi; Anamaria Berea; Joseph F. Harrison; Matthew Revelle; Hoda Osman; GEORGE MASON UNIV FAIRFAX VA
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| This project aimed at modeling future trajectories of irregular warfare (IW) through multiagent social simulation. The project objectives were to use social science to understand the social and political landscapes of IW; create a high-fidelity multiagent social simulation model (LRG-AFG) of the co-evolution of insurgency and counterinsurgency (COIN), embedded in a realistic and theoretically informed model of the local social, political, and economic landscapes; build an understanding of forces in ... |
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| Host Immune Responses That Promote Initial HIV Spread |
01 Jul 2011 |
56 pages |
| Authors:
K Wendelsdorf; G Dean; Shuhua Hu; S Nordone; H T Banks; VIRGINIA POLYTECHNIC INST AND STATE UNIV BLACKSBURG BIOINFORMATICS INST
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| The host inflammatory response to HIV invasion is a necessary component of the innate antiviral activity that vaccines and early interventions seek to exploit/enhance. However the response is dependent on CD4+ T-helper cell 1 (Th1) recruitment and activation. It is this very recruitment of HIV-susceptible target cells that is associated with the initial viral proliferation. Hence, global enhancement of the inflammatory response by T-cells and dendritic cells will likely feed ... |
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| Base Camp Design Simulation Training |
JUL 2011 |
38 pages |
| Authors:
Brian D. Sawser; Paul Kucik; MILITARY ACADEMY WEST POINT NY OPERATIONS RESEARCH CENTER
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| By late 2009, the US Army published an assessment of base camp training in TRADOC PAM 525-5-5, declaring "that no comprehensive policy or doctrine associated with planning and design, construction, and deconstruction, nor operations and management" existed with respect to base camps. In light of the Army's stated desire to reacquire base camp competencies and revolutionary changes in the Army Learning Model, as outlined in TRADOC PAM 525-9-2, the Operations ... |
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| Multi-Sensor Data Fusion: An Unscented Least Squares Approach |
Jul 2011 |
9 pages |
| Authors:
Jemin George; Lance M Kaplan; ARMY RESEARCH LAB ADELPHI MD
|
| This manuscript provides an approach to solving the nonlinear least squares problem that arises in decentralized fusion. In decentralized fusion, measurements are first processed at the sensor node before they are relayed to the central node. Even though almost all sensor noise can be modeled as additive noise, the additive nature of the measurement noise is lost when the signal is processed at the sensor node. The proposed unscented transformation-based ... |
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| Department of Defense Enterprise Requirements and Acquisition Model |
JUN 2011 |
143 pages |
| Authors:
David A. Leach; Chad T. Searle; AIR FORCE INST OF TECH WRIGHT-PATTERSON AFB OH DEPT OF SYSTEMS AND ENGINEERING MANAGEMENT
|
| In support of senior leadership emphasis on improving early systems engineering and analysis, the Enterprise Requirements and Acquisition Model (ERAM) is a quantitative discrete-event process simulation model that accounts for activities from the identification of a desired space capability early in the JCIDS process through Milestone C of the acquisition system resulting in a probabilistic schedule distribution for a given concept. This model of the DoD's space capability development process ... |
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| Noncombatant Evacuation Operations in USEUCOM |
JUN 2011 |
77 pages |
| Authors:
Mark A. Scheer; AIR FORCE INST OF TECH WRIGHT-PATTERSON AFB OH GRADUATE SCHOOL OF ENGINEERING AND MANAGEMENT
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| The purpose of this research was to examine Noncombatant Evacuation Operations in the USEUCOM area of responsibility. The processes that make up a NEO are collection of evacuees, verification of identity, security screening, and transportation to a safe haven. Understanding the complex interactions between process building blocks can enlighten military planners aiding them in accomplishing this critical mission faster, safer, and more efficiently. Specifically, this graduate research project focused on ... |
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| Operational Planning with Uncertain and Ambiguous Information: Command and Control and the Natural Environment |
JUN 2011 |
45 pages |
| Authors:
Karl D. Pfeiffer; Susan G. Hutchins; David L. Kleinman; Scot Miller; William G. Kemple; NAVAL POSTGRADUATE SCHOOL MONTEREY CA GRADUATE SCHOOL OF OPERATIONAL AND INFORMATION SCIENCES
|
| Operational planners, particularly military planners, are often faced with constructing a plan using ambiguous data in highly complex or rapidly evolving situations. Environmental information represents a particular challenge for planners. The state of the art in geophysical fluid dynamics leaves significant uncertainty in forecast conditions. Even with perfect knowledge of the future state of ocean and atmosphere, translating these conditions into mission impacts can be difficult and can result in ... |
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| Distributed Threat Evaluation in Naval Tactical Battle Management |
JUN 2011 |
45 pages |
| Authors:
Hengameh Irandoust; Abder Benaskeur; Philipe Bellefeuille; Froduald Kabanza; DEFENCE RESEARCH AND DEVELOPMENT CANADA VALCARTIER (QUEBEC)
|
| Threat evaluation is a critical function in naval battle management command and control. It involves taking into account a large number of variables and requires making complex inferences under time and uncertainty constraints. Collaborative threat evaluation within a multi-unit and geographically dispersed force can reduce the uncertainty factor by bringing to the process additional information sources and computational power and providing more capability and robustness. However, it also introduces many ... |
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| Analyzing C2 Structures and Self-Synchronization with Simple Computational Models |
JUN 2011 |
34 pages |
| Authors:
Anthony H. Dekker; DEFENCE SCIENCE AND TECHNOLOGY ORGANISATION (AUSTRALIA) JOINT OPERATIONS DIVISION
|
| Although Command and Control (C2) is a complex activity, useful lessons about C2 can be learned from simple computational models. In this paper, the author describes experiments with two such models. The Kuramoto Model, though it has some serious limitations, provides a representation of information flow and self-synchronization in an organization. A second (agent-based) model, based on factorization, provides a representation of planning that is slightly more realistic. These models ... |
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| On Optimizing Command and Control Structures |
JUN 2011 |
26 pages |
| Authors:
David Scheidt; Kevin Schultz; JOHNS HOPKINS UNIV LAUREL MD APPLIED PHYSICS LAB
|
| This paper uses information theory to investigate the utility of alternative Command and Control (C2) structures and strategies. Specifically, the authors use the information theoretic metrics of "complexity," "entropic drag," and "evolutionary entropy." Complexity measures the amount of information required to fully express a situation. Entropic drag measures the rate at which situational information becomes obsolete. These metrics are used to characterize situations managed by C2 systems. The performance of ... |
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| Organizational Agility Model and Simulation |
JUN 2011 |
62 pages |
| Authors:
Philip S. Farrell; DEFENCE RESEARCH AND DEVELOPMENT CANADA OTTAWA (ONTARIO)
|
| Multiple Governance and Management (GM) approaches such as de-conflicted, coordinated, collaborative, and "edge" may all be required during complex endeavours in order to meet mission objectives effectively and efficiently. GM Approach agility is defined as an entity's (individual, team, organization, or collective) ability to transition between one GM Approach and another and to maintain that approach in the presence of disturbances, uncertainty, and self-damage. A conceptual model for GM Approach ... |
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| Supporting NATO C2-Simulation Experimentation with Scripted Web Services |
JUN 2011 |
47 pages |
| Authors:
J. M. Pullen; Douglas Corner; Lisa Nicklas; GEORGE MASON UNIV FAIRFAX VA CENTER FOR EXCELLENCE IN COMMAND CONTROL COMMUNICATIONS COMPUTERS - INTELLIGENCE
|
| The NATO Modeling and Simulation Group Technical Activity 48 (MSG-048) operated from 2006 to 2009, investigating the potential of a Command and Control (C2) Battle Management Language (BML) for Multinational and NATO C2-simulation interoperation. To achieve this, MSG-048 used an interface specification developed under US Army support called Integrated BML, enhanced to meet coalition needs. Demonstrations in 2007 and 2008 culminated in a weeklong period of experimentation in 2009. In ... |
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| Games for Health, 2011 |
JUN 2011 |
22 pages |
| Authors:
Benjamin Sawyer; DIGITAL MILL INC PORTLAND ME
|
| In May 2011, The Games for Health Project, an effort organized by Digitalmill, Inc. with funding from the Robert Wood Johnson Foundation held its 7th Annual Games for Health Conference. This three day event brought together over 400 researchers, videogame developers, health professionals and health stakeholders including military, government, private sector, and foundational interests to discuss a wide range of issues, best practices, and research findings concerning the use of ... |
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| On Systems Engineering Processes in System-of Systems Acquisition |
JUN 2011 |
91 pages |
| Authors:
Heng J. Shyang; NAVAL POSTGRADUATE SCHOOL MONTEREY CA DEPT OF SYSTEMS ENGINEERING
|
| System-of-Systems (SoS) programs applying the current systems engineering (SE) process in their acquisition have met with numerous technical and program management challenges resulting in adverse consequences such as unacceptable schedule delays. To enhance the chance of success for SoS acquisition, the current acquisition process needs to be improved. Systems engineering has been a recognized contributor to successful systems acquisition and its applicability to SoS is apparent. In this research, a ... |
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| Thermophotovoltaic Energy Conversion in Submarine Nuclear Power Plants |
JUN 2011 |
105 pages |
| Authors:
JOHN N. HOWARD; NAVAL POSTGRADUATE SCHOOL MONTEREY CA DEPT OF ELECTRICAL AND COMPUTER ENGINEERING
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| Thermophotovoltaic (TPV) cells allow for the direct conversion of infrared (IR) radiation to electricity, similar to when traditional solar cells are exposed to visible light. The objective of this thesis is the development of a computer model of a multijunction TPV cell designed to absorb IR radiation from the primary fluid system of a naval nuclear reactor. This model is then used to determine the feasibility of using this TPV ... |
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| After Action Review Guide for Trainers of Virtual Battlespace-2 Missions |
Jun 2011 |
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| Authors:
Chris Green; Bruce C Leibrecht; Jeffrey E Fite; NORTHROP GRUMMAN CORP FORT KNOX KY TECHNICAL SERVICES
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| The Virtual Battlespace-2 (VBS2) training simulation provides special feedback capabilities for supporting mission after action reviews (AARs). To help AAR facilitators leverage the software's special AAR capabilities, the VBS2 AAR Guide was created to serve as a professional development and performance support tool. Full details on the development of the guide can be found in ARI Technical Report 1294, Guidelines and Tools for VBS2 Mission After Action Reviews: Development and ... |
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Reports by Keyword(s)
COMPUTERIZED SIMULATION
