| Development of the HH-60 Fuel Probe Container |
23-Nov-2009 |
52 pages |
| Authors:
Michael R Harff; Susan J Evans; AIR FORCE PACKAGING TECHNOLOGY AND ENGINEERING FACILITY WRIGHT-PATTERSON AFB OH
|
 | The Air Force Packaging Technology Engineering Facility (AFPTEF) was tasked with the design of a new shipping and storage container for the HH-60 Fuel Probe in April of 2009. The current wood container is difficult to handle, falls apart easily, provides minimal physical protection of the item, and offers no environmental protection against corrosion. To solve these issues AFPTEF used proven design techniques IAW SAE ARP1967A to develop an aluminum, ... |
|
| Frameworks and Tools for High-Confidence Design of Adaptive, Distributed Embedded Control Systems. Multi-University Research Initiative on High-Confidence Design for Distributed Embedded Systems |
Jan-2009 |
22 pages |
| Authors:
Edmund Clarke; Edward Lee; Bruce Krogh; Stephen Boyd; J Sztipanovits; G Karsai; C Tomlin; S Sastry; VANDERBILT UNIV NASHVILLE TN INST FOR SOFTWARE INTEGRATED SYSTEMS
|
| This project aims to develop a comprehensive approach to the model-based design of high-confidence distributed embedded systems. We will take advantage and fully leverage a shared theoretical foundation and technology infrastructure in four focus areas: hybrid and embedded systems theory, model-based software design, composable tool architectures and experimental testbeds. The objectives of our research in the focus areas are the following: (1) Develop theory of deep composition of hybrid systems ... |
|
| Development of the MQ-9 Reaper Wings Container |
03 JUN 2008 |
40 pages |
| Authors:
Matthew P. Bozzuto; Susan J. Evans; AIR FORCE PACKAGING TECHNOLOGY AND ENGINEERING FACILITY WRIGHT-PATTERSON AFB OH
|
| The Air Force Packaging Technology & Engineering Facility (AFPTEF) was tasked with the design of a new shipping and storage container for the MQ-9 Reaper wings in March of 2006. The previous container did not adequately satisfy user needs and Air Force requirements. A main problem was that it was designed for an MQ-9 Reaper fuselage, wings, and tails combined, which exceeded the 10,000 lb Air Force requirement for available ... |
|
| Development of the MQ-9 Reaper Fuselage Container |
20 MAY 2008 |
|
| Authors:
Matthew P. Bozzuto; Susan J. Evans; AIR FORCE PACKAGING TECHNOLOGY AND ENGINEERING FACILITY WRIGHT-PATTERSON AFB OH
|
 | The Air Force Packaging Technology & Engineering Facility (AFPTEF) was tasked with the design of a new shipping and storage container for the MQ-9 Reaper fuselage in March of 2006. The previous container did not adequately satisfy user needs and Air Force requirements. A main problem was that it was designed for an MQ-9 Reaper fuselage, wings, and tails combined, which exceeded the 10,000 lb Air Force requirement for available ... |
|
| Developing a Conceptual Architecture for a Generalized Agent-based Modeling Environment (GAME) |
MAR 2008 |
77 pages |
| Authors:
Christian T. Nguyen; NAVAL POSTGRADUATE SCHOOL MONTEREY CA
|
| Agent-based technology is a relatively new, but rapidly proliferating decision technology. The relative immaturity of ABM software often requires significant programmer expertise in model representation and implementation. This limits potential users and their ability to utilize the software. We develop a high level conceptual architecture for an agent-based modeling environment which overcomes this limitation. This thesis defines a taxonomy of agents based on commonly accepted agent characteristics, reviews six of ... |
|
| A Framework for Software Reuse in Safety-Critical System of Systems |
MAR 2008 |
99 pages |
| Authors:
Bradley R. Warren; NAVAL POSTGRADUATE SCHOOL MONTEREY CA
|
| This thesis concerns the effective and safe software reuse in safety-critical system-of-systems. Software reuse offers many unutilized benefits such as achieving rapid system development, saving resources and time, and keeping up technologically in an increasingly advancing global environment. System software needs to be designed for both reuse and safety and available information shared effectively. We introduce a process neutral framework for software reuse in safety-critical system of systems. That framework ... |
|
| Development of the MQ-9 Reaper Propeller Container |
21 FEB 2008 |
42 pages |
| Authors:
Joel A. Sullivan; Susan J. Evans; AIR FORCE PACKAGING TECHNOLOGY AND ENGINEERING FACILITY WRIGHT-PATTERSON AFB OH
|
| The Air Force Packaging Technology Engineering Facility (AFPTEF) was tasked with the design of a new shipping and storage container for the MQ-9 Reaper Propeller in March of 2006. The new container is designed to replace the fiberglass container currently used. The current container provides minimal shock protection and being fiberglass is susceptible to deformation, delamination, and extreme temperatures. Additionally, the fiberglass container can not house the propeller and spinner ... |
|
| Little by Little Does the Trick: Design and Construction of a Discrete Event Agent-Based Simulation Framework |
DEC 2007 |
77 pages |
| Authors:
Alexandros Matsopoulos; NAVAL POSTGRADUATE SCHOOL MONTEREY CA
|
| Simulation is one of the most widely used techniques in operations research. In the military context, agent-based simulations have been extensively used by defense agencies worldwide. Despite the numerous disadvantages and limitations associated with time- stepping, most of the combat-oriented agent-based simulation models are time-step implementations. The Discrete Event Scheduling (DES) paradigm, on the other hand, is free of these disadvantages and limitations. The scope of this thesis is to ... |
|
| Review of Laser Lightcraft Propulsion System (Preprint) |
16 OCT 2007 |
13 pages |
| Authors:
Eric W. Davis; Jr Mead Franklin B.; AIR FORCE RESEARCH LAB EDWARDS AFB CA PROPULSION DIRECTORATE
|
| Laser-powered "Lightcraft" systems that deliver nano-satellites to LEO have been studied for the Air Force Research Laboratory (AFRL). The study was built on the extensive Lightcraft laser propulsion technology already developed by theoretical and experimental work by the AFRL's Propulsion Directorate at Edwards AFB, CA. Here we review the history and engineering-physics of the laser Lightcraft system and its propulsive performance. We will also review the effectiveness and cost of ... |
|
| An Extensible Architecture for Multi-Game Fusion |
OCT 2007 |
25 pages |
| Authors:
Leigh Flagg; Melody McClure; Rose Gamble; John Tiller; SENTAR INC HUNTSVILLE AL
|
| The objective of the Multi-Game Fusion (MGFusion) platform is to design and prototype an extensible, reusable, and verifiable wargaming environment, which provides an advanced command and control (C2) simulation and experimentation platform. This effort was meant to provide a reasonable foundation to test C2 functions and strategies through the use of commercial-grade wargames, which strive to embody humanistic actions and responses. |
|
| Future of Space Propulsion (Postprint) |
SEP 2007 |
7 pages |
| Authors:
John F. Remen; Glenn Liston; AIR FORCE RESEARCH LAB EDWARDS AFB CA PROPULSION DIRECTORATE
|
| A lot has happened in the area of space propulsion over the last 10 years prompting one to wonder, "Where are we going next?" This paper will first take a quick look back at history and from this perspective postulate the future directions for space propulsion. Topics to be addressed include spacelift and spacecraft propulsion. The future holds many great opportunities but just as many technical challenges. |
|
| Advanced, Adaptive, Modular, Distributed, Generic Universal FADEC Framework for Intelligent Propulsion Control Systems (Preprint) |
SEP 2007 |
48 pages |
| Authors:
Alireza R. Behbahani; AIR FORCE RESEARCH LAB WRIGHT-PATTERSON AFB OH PROPULSION DIRECTORATE
|
| Today, each FADEC is unique and expensive to develop, produce, maintain, and upgrade for its particular application. Each FADEC is a centralized system, with a redundant, central computer and centrally located analog signal interfacing circuitry for interfacing with sensors and actuators located throughout the propulsion system. It is to establish a universal or common standard for engine controls and accessories. This will significantly reduce the high development and support costs ... |
|
| Reacting Flows Simulation with Applications to Ground to Flight Extrapolation |
01 JUL 2007 |
21 pages |
| Authors:
P. F. Barbante; POLITECNICO DI MILANO (ITALY) IST DI MATEMATICA
|
| The development of next generation reusable space vehicles requires a precise qualification of their Thermal Protection System materials. The catalytic properties are usually determined in plasma wind tunnels for sets of test conditions relevant to the planned flight mission program. Therefore, for such a situation, it is important to have a methodology that allows for the correct extrapolation of the ground test conditions to the real flight ones and vice-versa. ... |
|
| Advanced Integrated TPS and Non Equilibrium Chemistry Instrumentation |
01 JUN 2007 |
51 pages |
| Authors:
Monika Auweter-Kurtz; Markus Fertig; Georg Herdrich; Michael Winter; STUTTGART UNIV (GERMANY F R)
|
| Upon entering the atmosphere of celestial bodies, spacecraft encounter gases at velocities of more than 10 km/s, thereby being subjected to great heat loads. This makes it necessary to use high temperature thermal protection systems (TPS) to prevent the destruction of the space vehicle. The TPSs as well as the plasma environment during the entry have to be investigated by means of computational and ground facility simulations. The four plasma ... |
|
| Pre-X Experimental Re-Entry Lifting Body: Design of Flight Test Experiments for Critical Aerothermal Phenomena |
01 JUN 2007 |
19 pages |
| Authors:
Paolo Baiocco; CENTRE NATIONAL D'ETUDES SPATIALES TOULOUSE (FRANCE)
|
| Atmospheric glided re-entry is one of the main key technologies for future space vehicle applications. In this frame Pre-X is the CNES proposal to perform in-flight experimentation mainly on reusable thermal protections, aero-thermo-dynamics and guidance to secure the second generation of re-entry X vehicles. This paper describes the system principles and main aerothermodynamic experiences currently foreseen on board the vehicle. A preliminary in-flight experimentation and measurement plan has been assessed ... |
|
| Experimental and Numerical Investigations of RP-2 Under High Heat Fluxes |
MAY 2007 |
32 pages |
| Authors:
M. C. Billingsley; H. Y. Lyu; R. W. Bates; AIR FORCE RESEARCH LAB EDWARDS AFB CA PROPULSION DIRECTORATE
|
| Interest in developing reusable, long-life, liquid hydrocarbon fueled rocket engines has continued to grow in recent years. Of critical importance in designing and developing an engine with these characteristics is of course the fuel and its impact on potential cooling schemes. For several years now, the Air Force Research Laboratory Propulsion Directorate has been developing the capability to examine the thermal performance of newly emerging petroleum distillate fuels such as ... |
|
| Initial Results from the Demonstration and Analysis of Reusable Nanosat Launch Vehicle Operations |
16 APR 2007 |
29 pages |
| Authors:
J.M. Garvey; E. Besnard; GARVEY SPACECRAFT CORP LONG BEACH CA
|
| Flight testing of prototype reusable launch vehicles (RLVs) has declined significantly since a period in the mid-1990s that was marked by ambitious projects but uneven results. Consequently, a new program has been established with the objective of investigating RLV-type fast turn-around flight operations. Major distinctions from these earlier efforts include the use of a smaller class of vehicles and payloads, along with an initial emphasis on operations as opposed to ... |
|
| Development of the C-17 Nose Landing Gear Container, CNU-691/E |
APR 2007 |
47 pages |
| Authors:
Joel A. Sullivan; Susan J. Evans; AIR FORCE PACKAGING TECHNOLOGY AND ENGINEERING FACILITY WRIGHT-PATTERSON AFB OH
|
| The Air Force Packaging Technology Engineering Facility (AFPTEF) was tasked with the design of a new shipping and storage container for the C-17 Nose Landing Gear (NLG) in March of 2004. The new container will replace the wood crates presently used. The current containers' lack of mechanical and environmental protection prompted AFPTEF's design of a new container. The container developed, CNU-691/E, will protect the NLG mechanically and environmentally. The CNU-691/E, ... |
|
| Development of the C-17 - Main Landing Gear Post Container, CNU-677/E |
APR 2007 |
45 pages |
| Authors:
Matthew P. Bozzuto; Susan J. Evans; AIR FORCE PACKAGING TECHNOLOGY AND ENGINEERING FACILITY WRIGHT-PATTERSON AFB OH
|
| The Air Force Packaging Technology Engineering Facility (AFPTEF) was tasked with the design of a new shipping and storage container for the C-17 MLG Post in March of 2004. The new container is designed to replace the wood container that was previously used. The main problem with the wood design was corrosion due to inadequate environmental control and protection. In addition, there were two different container configurations to accommodate a ... |
|
| Determining Logistics Ground Support Manpower Requirements for a Reusable Military Launch Vehicle |
MAR 2007 |
253 pages |
| Authors:
Sydney C. Michalski; AIR FORCE INST OF TECH WRIGHT-PATTERSON AFB OH SCHOOL OF ENGINEERING AND MANAGEMENT
|
| Successful space-based technologies like satellite imagery and GPS have increased military demand for a rapid-response launch capability. AF Space Command's Operationally Responsive Spacelift program was developed to ensure that the AF has the capability to launch a payload into orbit within hours of a tasking notification, and requires development of a new space launch vehicle. The Reusable Military Launch Vehicle (RMLV) is currently in the design phase. The AF Research ... |
|
| LBP Concerns in Producing Recycled Concrete Aggregate from Former Fort Ord Family Housing |
JAN 2007 |
34 pages |
| Authors:
Stephen D. Cosper; ENGINEER RESEARCH AND DEVELOPMENT CENTER CHAMPAIGN IL CONSTRUCTION ENGINEERING RESEARCH LAB
|
| The presence of lead-based paint on concrete from demolition projects raises questions regarding suitable reuse or disposal. The regulatory environment is unclear on issues of reuse. This report attempts to correlate the concentration of lead on a painted building to the concentration of lead in aggregate produced from that building's demolition. This final concentration is the key metric in determining suitable end use. In this case of former Army family ... |
|
| High-Fidelity Real-Time Trajectory Optimization for Reusable Launch Vehicles |
DEC 2006 |
445 pages |
| Authors:
Kevin P. Bollino; NAVAL POSTGRADUATE SCHOOL MONTEREY CA DEPT OF MECHANICAL AND ASTRONAUTICAL ENGINEERING
|
| Creating simplicity out of complexity, this research abandons the traditional guidance and control architecture for aerospace vehicles and embraces a revolutionary concept based on the principles of nonlinear optimal control theory. Motivated by the emerging needs of the next generation of reusable space vehicles, an autonomous integrated guidance and control system is developed that provides a safe approach to the highly constrained and nonlinear reentry problem. A pseudospectral-based optimal guidance ... |
|
| Development of the C-17 Fan Thrust Reverser Container, CNU-688/E |
OCT 2006 |
55 pages |
| Authors:
Mark W. Boals; Susan J. Evans; AIR FORCE PACKAGING TECHNOLOGY AND ENGINEERING FACILITY WRIGHT-PATTERSON AFB OH
|
| The Air Force Packaging Technology and Engineering Facility (AFPTEF) was tasked with the design of a new shipping and storage container for the C-17 Fan Thrust Reverser (FTR) in March of 2004. The new container is designed to replace the wood crate and wood frame assembly presently used. The current containers lack of mechanical protection, environmental protection, handling issues, and left and right container requirements prompted AFPTEF's design of a ... |
|
| Investigation of Mechanical Processes for Removing Lead-Based Paint (LBP) from Wood Siding |
SEP 2006 |
131 pages |
| Authors:
Robert H. Falk; John Janowiak; Richard G. Lampo; Thomas R. Napier; Stephen D. Cosper; Susan A. Drozdz; Steven Larson; Edgar D. Smith; ENGINEER RESEARCH AND DEVELOPMENT CENTER CHAMPAIGN IL CONSTRUCTION ENGINEERING RESEARCH LAB
|
| The U.S. Army is responsible for thousands of World War II-era wooden temporary buildings that must be removed in order to reduce Department of Defense (DoD) real property inventories. Most of those buildings were used long past their intended service lives and were well maintained. They contain large quantities of reusable wood materials with a significant potential resale value. Standard demolition procedures would destroy the value of that material and ... |
|
| Progress in Guidance and Control Research for Space Access and Hypersonic Vehicles (Preprint) |
SEP 2006 |
18 pages |
| Authors:
David B. Doman; Michael W. Oppenheimer; Michael A. Bolender; AIR FORCE RESEARCH LAB WRIGHT-PATTERSON AFB OH AIR VEHICLES DIRECTORATE
|
| Over the past decade, both NASA and the U.S. Air Force have directed significant efforts aimed at reducing the cost of access to space as well as improving the reliability and safety of launch vehicles. From a guidance and control perspective, efforts have focused on the development of fault tolerant autonomous systems that can recover vehicles from failures or damage when physically possible. The state of the art is summarized ... |
|
| Smooth Function Modeling for On-Line Trajectory Reshaping Application (Preprint) |
JUL 2006 |
19 pages |
| Authors:
Ajay Verma; Kalyan Vadakkeveedu; Michael W. Oppenheimer; David B. Doman; KNOWLEDGE BASED SYSTEMS INC COLLEGE STATION TX
|
| This report was developed under a SBIR contract. Online vehicle trajectory reshaping is desired for a class of autonomous air vehicles such as RLVs in order to avoid catastrophic failure when subjected to performance restricting damages and failures. An Adaptive Trajectory Reshaping and Control (ATRC) system is envisioned that responds to altered vehicle conditions by continuously retargeting and reshaping the reference RLV trajectory satisfying the feasibility constraints. On-line trajectory reshaping ... |
|
| A Comparative Analysis of Single-Stage-To-Orbit Rocket and Air-Breathing Vehicles |
JUN 2006 |
100 pages |
| Authors:
Benjamin S. Orloff; AIR FORCE INST OF TECH WRIGHT-PATTERSON AFB OH DEPT OF AERONAUTICS AND ASTRONAUTICS
|
| This study compares and contrasts the performance of a variety of rocket and air breathing, single-stage-to-orbit, reusable launch vehicles. Fuels considered include bi-propellant and tri-propellant combinations of hydrogen and hydrocarbon fuels. Astrox Corporation's HySIDE code was used to model the vehicles and predict their characteristics and performance. Vehicle empty mass, wetted area and growth rates were used as figures of merit to predict the procurement, operational and maintenance cost trends ... |
|
| Web-based Open Tool Integration Framework |
MAY 2006 |
48 pages |
| Authors:
G. Karsai; VANDERBILT UNIV NASHVILLE TN
|
| The OTIF project described in this report addressed the problem of building integrated design tool chains for embedded system development. The project has developed, implemented, and applied an open tool integration framework that provides a software infrastructure for building specific tool integration solutions. The framework is based on reusable components and industry-standard protocols, and uses metamodeling and model transformation technology to facilitate the tool integration task. The report summarizes the ... |
|
| Development of the Combat Talon I - APQ-122 Terrain Following Radar (TFR) Antenna Container |
MAR 2006 |
44 pages |
| Authors:
Matthew P. Bozzuto; Susan J. Evans; AIR FORCE PACKAGING TECHNOLOGY AND ENGINEERING FACILITY WRIGHT-PATTERSON AFB OH
|
| The Air Force Packaging Technology Engineering Facility (AFPTEF) was tasked with the design of a new shipping and storage container for the Combat Talon I - TFR Antenna in May of 2005. The new container is designed to replace the fiberglass container that was previously used. The main problems with the fiberglass design were corrosion due to inadequate environmental control and protection, isolation system breakdown, and that there was no ... |
|
| A Discrete Event Simulation Model for Evaluating Air Force Reusable Military Launch Vehicle Prelaunch Operations |
MAR 2006 |
147 pages |
| Authors:
Adam T. Stiegelmeier; AIR FORCE INST OF TECH WRIGHT-PATTERSON AFB OH SCHOOL OF ENGINEERING AND MANAGEMENT
|
| As the control and exploitation of space becomes more important to the United States military, a responsive spacelift capability will become essential. Responsive spacelift could be defined as the ability to launch a vehicle within hours or days from the time a launch order is given, instead of the weeks or months it takes currently. As the Air Force contemplates moving toward a reusable military launch vehicle (RMLV) capability, it ... |
|
| High-Temperature Reusable Shape Memory Polymer Mandrels (Preprint) |
MAR 2006 |
12 pages |
| Authors:
Matthew C. Everhart; Beth A. Knapp; CORNERSTONE RESEARCH GROUP INC DAYTON OH
|
| Cornerstone Research Group, Inc. (CRG) has demonstrated the feasibility of filament winding complex-curved composite shapes on shape memory polymer (SMP) mandrels. SMPs can exhibit a radical change from a rigid polymer to a flexible, elastic state, and then back to a rigid state under thermal stimuli. SMP mandrels for filament winding and fiber placement allow for a quick, easy, reusable, and low-cost mandrel system. CRG has recently improved the SMP ... |
|
| Comparative Analysis of Two-Stage-to-Orbit Rocket and Airbreathing Reusable Launch Vehicles for Military Applications |
MAR 2006 |
254 pages |
| Authors:
Joseph M. Hank; AIR FORCE INST OF TECH WRIGHT-PATTERSON AFB OH SCHOOL OF ENGINEERING AND MANAGEMENT
|
| The Department of Defense (DoD) has identified operationally responsive, low-cost access to space as vital to maintaining U.S. military supremacy. Reusable Launch Vehicles (RLVs) will allow the U.S. to keep a technological advantage over our adversaries, and advances in airbreathing propulsion technology have made it feasible for use in space launch vehicles. This study considers two-stage-to-orbit (TSTO) RLV configurations, each using combinations of propulsion including pure rocket, pure turbine, rocket-based-combined-cycle ... |
|
| R2PL 2005 - Proceedings of the First International Workshop on Reengineering towards Product Lines |
MAR 2006 |
|
| Authors:
Bas Graaf; Liam O'Brien; Rafael Capilla; CARNEGIE-MELLON UNIV PITTSBURGH PA SOFTWARE ENGINEERING INST
|
| This report contains the proceedings from the First International Workshop on Reengineering Towards Product Lines (R2PL) 2005, which was held on November 10th, 2005 in Pittsburgh, Pennsylvania, USA and colocated with the Working Conference on Reverse Engineering (WCRE) 2005 and WICSA 2005 the Working Institute of Electrical and Electronics Engineers/International Federation for Information Processing (IEEE/IFIP) Conference on Software Architecture. This report consists of an overview of an invited presentation, a ... |
|
| Development of the C-17 Nose Radome Container, CNU-674/E |
27 FEB 2006 |
46 pages |
| Authors:
Mark W. Boals; Susan J. Evans; AIR FORCE PACKAGING TECHNOLOGY AND ENGINEERING FACILITY WRIGHT-PATTERSON AFB OH
|
| The Air Force Packaging Technology Engineering Facility (AFPTEF) was tasked with the design of a new shipping and storage container for the C-17 Radome in March of 2004. The new container is designed to replace the wood and fiberglass shell container presently used. The current containers lack of mechanical and environmental protection as well as handling issues prompted AFPTEF's design of a new container. The new container will protect the ... |
|
| Case-Based Reasoning for Human Behavior Modeling |
16 FEB 2006 |
28 pages |
| Authors:
SCIENCE APPLICATIONS INTERNATIONAL CORP ORLANDO FL
|
| Over the past two years, we have investigated how the cost of behavior development for synthetic forces could be reduced through the use of Case Based Design (CBD). CBD has the potential for helping a developer quickly find useful behaviors (Reece, McCormack et al. 2004), understand how they work (Reece, McCormack et al. 2005) and reuse them. We investigated CBD for behavior in two different simulation environments. In the first ... |
|
| Application of Piecewise Linear Control Allocation to Reusable Launch Vehicle Guidance and Control |
FEB 2006 |
13 pages |
| Authors:
Michael A. Bolender; David B. Doman; Michael W. Oppenheimer; AIR FORCE RESEARCH LAB WRIGHT-PATTERSON AFB OH AIR VEHICLES DIRECTORATE
|
| We will demonstrate two applications of the piecewise linear control allocation (PLCA) approach. The first application to be considered is to use the PLCA approach in the inner-loop control law of a re-usable launch vehicle on approach and landing. Body axis angular rates are controlled using a dynamic inversion controller. The vehicle will be subjected to two stuck control effectors, and recovery of the vehicle using only control effector reconfiguration ... |
|
| Development of the C-17 Heads-Up Display (HUD) Container, CNU-676/E |
27 JAN 2006 |
47 pages |
| Authors:
Robbin L. Miller; Susan J. Evans; AIR FORCE PACKAGING TECHNOLOGY AND ENGINEERING FACILITY WRIGHT-PATTERSON AFB OH
|
| The Air Force Packaging Technology and Engineering Facility (AFPTEF) was tasked with the design of a new shipping and storage container for the C-17 Heads-Up Display (HUD) unit in March of 2004. The new container is designed to replace the wood/fiberboard combination package presently used. The current containers lack of mechanical and environmental protection as well as handling issues prompted AFPTEF's design of a new container. The new container will ... |
|
| Aerospace Sensor Component and Subsystem Investigation and Innovation-2 Component Exploration and Development (ASCSII-2 CED). Delivery Order 0002: Volume 1. Reconfigurable Aperture Antenna Virtual Prototyping (RFIC Radar-on-a Chip Component Design and Re- |
SEP 2005 |
77 pages |
| Authors:
C. I. Zanelli; SYSTRAN FEDERAL CORP DAYTON OH
|
| The main task item that was common to all the tasks in the statement of work was the capture of new methodologies in RF and analog design flows. RF/Analog design flow methodologies can be difficult to sustain for defense electronics programs. The enabling outcome of the circuit synthesis development was an improved capability in developing RF/Analog design flows in defense design centers. The extension of the synthesis methods to larger ... |
|
| Optimal Trajectory Reconfiguration and Retargeting for a Reusable Launch Vehicle |
AUG 2005 |
15 pages |
| Authors:
Patrick J. Shaffer; I. M. Ross; Michael W. Oppenheimer; David B. Doman; NAVAL POSTGRADUATE SCHOOL MONTEREY CA
|
| Autonomous reusable launch vehicles (RLV) are being pursued as low-cost alternatives to expendable launch vehicles and the Shuttle. The employment of autonomous reusable launch vehicles requires additional guidance and control robustness to fulfill the role of an adaptive human pilot, in the event of failures or unanticipated conditions. The guidance and control of these vehicles mandate new guidance strategies that are able to identify and adapt to vehicle failures during ... |
|
| Military Space Plane: Ground Operations Model |
23 JUN 2005 |
29 pages |
| Authors:
Thomas H. Jacobs; George M. Huntley; Elan T. Smith; Michael W. Garrambone; Frank C. Betts; AIR FORCE RESEARCH LAB WRIGHT-PATTERSON AFB OH AIR VEHICLES DIRECTORATE
|
| Presentation on the development of ground operations for a military space plane. Contents include: MSP (military space plane) ground operations; problem statement; modeling considerations; problem solving approach; venture evaluation review technique; system data and analysis; findings and recommendations; summary and POC information. |
|
| Weight Analysis of Two-Stage-To-Orbit Reusable Launch Vehicles for Military Applications |
MAR 2005 |
119 pages |
| Authors:
Richard A. Caldwell; AIR FORCE INST OF TECH WRIGHT-PATTERSON AFB OH SCHOOL OF ENGINEERING AND MANAGEMENT
|
| In response to Department of Defense (DoD) requirements for responsive and low-cost space access, this design study provides an objective empty weight analysis of potential reusable launch vehicle (RLV) configurations. Each two-stage-to-orbit (TSTO) RLV has a fixed payload requirement of 20,000 lbf to low Earth orbit. The propulsion systems considered in this study include pure rocket, pure turbine, rocket-based-combined-cycle (RBCC), and turbine-based- combined-cycle (TBCC). The hydrocarbon dual-mode scramjet (DMSJ) engines ... |
|
| Intrinsically Motivated Reinforcement Learning |
2005 |
9 pages |
| Authors:
Satinder Singh; Andrew G. Barto; Nuttapong Chentanez; MASSACHUSETTS UNIV AMHERST DEPT OF COMPUTER SCIENCE
|
| Psychologists call behavior intrinsically motivated when it is engaged in for its own sake rather than as a step toward solving a specific problem of clear practical value. But what we learn during intrinsically motivated behavior is essential for our development as competent autonomous entities able to efficiently solve a wide range of practical problems as they arise. In this paper we present initial results from a computational study of ... |
|
| A High Heat Flux Facility Design for Testing of Advanced Hydrocarbon Fuel Thermal Stability |
DEC 2004 |
15 pages |
| Authors:
E. Maas; S. Irvine; R. Bates; T. Auyeung; AIR FORCE RESEARCH LAB EDWARDS AFB CA
|
| The Air Force Research Laboratory's Propulsion Directorate is developing higher energy density hydrocarbon fuels for application in reusable liquid rocket engines. For increased performance and operability, next generation engines will require better thermal stability understanding of hydrocarbon fuels under high heat fluxes. Of the existing thermal stability test rigs, none have the ability to accurately simulate the high heat flux conditions that will exist in the cooling channels of these ... |
|
| Ubiquitous Power; Opportunities and Benefits of the Photo-Voltaic Power Converter for the Individual Fighter |
DEC 2004 |
55 pages |
| Authors:
John D. Stout; NAVAL POSTGRADUATE SCHOOL MONTEREY CA
|
| The success of every military throughout history has been its ability to move, shoot, and communicate, all of which require power. In the modern era, technology has afforded soldiers with equipment that greatly enhances maneuverability through state-of-the-art communications equipment. Such equipment creates significant power needs that are currently met through the use of expensive and heavy-to-carry disposable and rechargeable batteries. The limitation for improved complex communications, as well as weapon ... |
|
| Optimal Trajectory Reconfiguration and Retargeting for the X-33 Reusable Launch Vehicle |
SEP 2004 |
151 pages |
| Authors:
Patrick J. Shaffer; NAVAL POSTGRADUATE SCHOOL MONTEREY CA
|
| This thesis considers the problem of generating optimal entry trajectories for a reusable launch vehicle following a control surface failure. The thesis builds upon the work of Dr. David Doman, Dr. Michael Oppenheimer and Dr. Michael Bolender of the Air Vehicles Directorate, Air Force Research Lab Dayton Ohio. The primary focus of this work is to demonstrate the feasibility of inner loop reconfiguration and outer loop trajectory retargeting and replanning ... |
|
| Modeling and Simulation Technologies: Reconfigurable Flight Simulators in Modeling and Simulation |
26 JUL 2004 |
14 pages |
| Authors:
Guy W. Williams; Ken Lawrence; Richard Weeks; TEST WING ( 412TH) EDWARDS AFB CA
|
| The Test and Evaluation Modeling and Simulation (TEMS) facility at the Air Force Flight Test Center (AFFTC), Edwards Air Force Base, California, provides developmental test and evaluation flight test programs with virtual, piloted real-time simulators. The TEMS facility has a requirement to support multiple aircraft programs with high fidelity cockpits and out-the-window visual systems within limited facility space and tight budget constraints. The AFFTC's Modeling, Simulation and Integration (MSI) program ... |
|
| A Perspective of Future Micro Unmanned Aerial Vehicles for the U.S. Army |
23 JUL 2004 |
9 pages |
| Authors:
LeRoy Maurer; MANEUVER SUPPORT CENTER FORT LEONARD WOOD MO VISION AND ELECTRONIC SENSORS DIRECTORATES
|
| This presentation provides an overview of current Army efforts in the area of micro unmanned aerial vehicles (MUAVs), the operational purpose of MUAVs, and the various missions they serve, including reconnaissance, surveillance, target acquisition, battlefield damage assessment, unit patrols, and force protection. The SUAV can perch and stare and it can hover and stare. It can do inflight tasking for surveillance and reconnaissance and can act as an unattended ground ... |
|
| Knowledge Management for Command and Control |
JUN 2004 |
36 pages |
| Authors:
Marion G. Ceruti; Dwight R. Wilcox; Brenda J. Power; SPACE AND NAVAL WARFARE SYSTEMS COMMAND SAN DIEGO CA
|
| This paper highlights some major trends and developments in knowledge management with particular emphasis on knowledge capturing and authoring, and how this technology can be combined with intelligent agents to produce advanced capabilities for command and control systems. Past trends, present accomplishments and future work in knowledge management systems are covered. We also describe an in-house effort to accumulate, validate, and integrate the results of the Defense Advanced Research Projects ... |
|
| Application of Sequential Auction Techniques to Nonlinear Targeting Assignment for Space-Delivered Entry Vehicles |
MAY 2004 |
123 pages |
| Authors:
Brian A. Stiles; RICE UNIV HOUSTON TX
|
| In the future, the arsenal of the U.S. military will include Space- delivered weapons, released by reusable launch vehicles. Entry vehicles released from the launch platforms will be capable of guiding to target locations throughout the world. In order to adequately incorporate these weapons into military plans, theater commanders will require sophisticated planning algorithms to maximize the likelihood of destroying the most important targets. This thesis develops a target assignment ... |
|
| Design of a High Heat Flux Facility for Thermal Stability Testing of Advanced Hydrocarbon Fuels |
14 APR 2004 |
14 pages |
| Authors:
R. W. Bates; E. D. Maas; S. A. Irvine; T. P. Auyeung; O. Peroomian; ENGINEERING RESEARCH AND CONSULTING INCHUNTSVILLE AL
|
| With both the Air Force and NASA interested in developing reusable hydrocarbon-fueled engine technologies for reusable launch vehicles, there is an increased need to better understand the thermal stability of hydrocarbon fuels under high heat fluxes encountered during regenerative cooling. Currently, no existing thermal stability test rig can accurately simulate the high heat flux conditions that will exist in the cooling channels of these new high-pressure hydrocarbon engines. To meet ... |
|
Reports by Keyword(s)
REUSABLE EQUIPMENT
