| Effect of Temperature and Viscoelastic Creep on the Clamp-Up Load in Hybrid Composite/Metal Bolted Joints |
17-Aug-2009 |
152 pages |
| Authors:
Vincent Caccese; Senthil S Vel; Mauricio Fernandex; MAINE UNIV AT ORONO DEPT OF MECHANICAL ENGINEERING
|
 | Hybrid composite to metal bolted joints are the focus of much research due the inherent advantages that they present. In particular, they are very attractive to designers and engineers alike due to their simplicity and ease of disassembly. However, hybrid connections are particularly susceptible to metal fatigue, stress relaxation primarily due to viscoelastic creep of the composite, thermal effects due to coefficient of thermal expansion mismatch, galvanic corrosion between the ... |
|
| Hand Grenade Residuals (Environmental Security Technology Certification Program) |
Jun-2009 |
31 pages |
| Authors:
Steven L Larson; W A Martin; Deborah R Felt; Jeffrey L Davis; Catherine C Nestier; Gene L Fabian; Gregory O'Connor; ENGINEER RESEARCH AND DEVELOPMENT CENTER VICKSBURG MS ENVIRONMENTAL LAB
|
| The Department of Defense operates hundreds of hand grenade ranges for training purposes. The majority of hand grenades used at fixed position ranges are fragmentation grenades that are typically composed of a steel shell and composition B explosive material. Measurable explosive levels have been observed in hand grenade range soils at levels in the low parts per billion up to percent levels. Previous attempts to measure hand grenade residues have ... |
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| Security Forces Logistics Contract Experienced Certain Cost, Outcome, and Oversight Problems |
26-Apr-2009 |
35 pages |
| Authors:
Kenneth J Bowen; Walter J Franzen; Paul J Kennedy; Richard R Kusman; Nancee K Van Needham; Jack A Meter; Jason Venner; OFFICE OF INSPECTOR GENERAL ARLINGTON VA SPECIAL INSPECTOR GENERAL FOR IRAQ RECONSTRUCTION
|
| This report discusses one of the largest Department of Defense contracts funded by the Iraq Security Forces Fund. The contract was awarded to AECOM Government Services (AECOM) for Global Maintenance and Supply Services in Iraq (GMASS). This contract supports a Multi-National Security Transition Command-Iraq (MNSTC-I) program to assist the Iraqi Army develop a logistics capability so that it can be self-sufficient. SIGIR reviewed three task orders under the contract; Task ... |
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| The Land Warrior Soldier System: A Case Study for the Acquisition of Soldier Systems |
Dec-2008 |
345 pages |
| Authors:
Clifton; Nile L Jr; Douglas W Copeland; NAVAL POSTGRADUATE SCHOOL MONTEREY CA
|
| This project provides an analysis of the Army's acquisition of the Land Warrior (LW) Soldier System. Its objectives are to document the history of the LW and provide an overview of the program to establish the components of both its development and deployment and its associated business and management characteristics. The product is a document that provides an analysis of the actions taken and the obstacles encountered and how the ... |
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| Naval Surface Forces Real-Time Reutilization Asset Management Warehouses: A Cost-Benefit Analysis |
Dec-2008 |
73 pages |
| Authors:
Ryan M Perry; Nicholas R Russo; NAVAL POSTGRADUATE SCHOOL MONTEREY CA
|
| This research examines the NAVAL SURFACE FORCES Real-Time Reutilization Asset Management Warehouse operations, associated costs, and benefits it provides the Navy. Our methodology is to utilize established cost-benefit analysis techniques in order to provide the Navy with information to determine whether the benefits of storing, inventorying and providing free issue parts to customers are worth the costs of operating and maintaining the warehouses. The objective is to focus on total ... |
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| Design and Response of a Structural Multifunctional Fuel Cell |
MAR 2008 |
34 pages |
| Authors:
Joseph South; Daniel Baechle; Corydon Hilton; Daniel DeSchepper; Eric Wetzel; ARMY RESEARCH LAB ABERDEEN PROVING GROUND MD WEAPONS AND MATERIALS RESEARCH DIRECTORATE
|
| Many U.S. Army systems, such as ground vehicles and fully equipped Soldiers, are comprised of multiple subcomponents which each typically perform unique functions. Combining these functions into a single, multifunctional component may reduce mass and improve overall system efficiency. Of particular interest are structural materials that also provide power- generating or energy-storing capacity and could provide significant weight savings over a range of platforms. In this study, structural fuel cells ... |
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| An Image Based Bidirectional Reflectivity Distribution Function Experiment |
MAR 2008 |
80 pages |
| Authors:
Michael T. Hagg; AIR FORCE INST OF TECH WRIGHT-PATTERSON AFB OH SCHOOL OF ENGINEERING AND MANAGEMENT
|
| This experiment is a proof of concept type experiment providing initial setup and discovery of pitfalls that need to be overcome for AFIT to set-up an image based BRDF acquisition tool. Custom fabricated parts including a robust camera rotation mount and large scale mirror solutions are discussed. Image data extraction including geometric pixel to surface area correlation and a discussion of radiometric quantities that need to be well documented to ... |
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| Logistics Information Systems: The Need for an Upgraded Information System to Support Marine Aviation Logistics |
19-Feb-2008 |
13 pages |
| Authors:
P J Seipel; MARINE CORPS COMMAND AND STAFF COLL QUANTICO VA
|
| In 2007 the Deputy Commandant for Aviation signed the new AVPLAN, which stated The vision of aviation logistics in the future is flexible, agile, and reliable support to the ACE with a lighter/smaller logistics footprint and accompanied by proactive decision-making approaches and tools. To support this new vision for aviation logistics, a new set of tools is required. These tools must be integrated, flexible, adaptable, and technologically advanced. They must ... |
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| Remaining a Light Force |
19-Feb-2008 |
13 pages |
| Authors:
S L Gosnell; MARINE CORPS COMMAND AND STAFF COLL QUANTICO VA
|
| The Marine Corps must embrace the light infantry concept to remain relevant on the modern battlefield. The light infantry unit requires less equipment and less logistics support but more training. Unfortunately, current Marine infantry units have moved more toward the conventional infantry mindset in terms of their equipment sets and military tactics. The projection and sustainment of this equipment requires significant logistical support. In adopting this mindset, the Marine Corps ... |
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| The Application of Conceptual Models to Ecosystem Restoration |
FEB 2008 |
24 pages |
| Authors:
Craig Fischenich; ENGINEER RESEARCH AND DEVELOPMENT CENTER VICKSBURG MS COASTAL AND HYDRAULICS LAB
|
| In its report to the Chief of Engineers, the U.S. Army Corps of Engineers (USACE) Environmental Advisory Board (EAB) recommended that (USACE, EAB 2006): The Corps should encourage the explicit use of conceptual models to guide ecosystem restoration planning and implementation. Conceptual models should be required as a first step in the planning process, as they provide a key link between early planning (e.g., an effective statement of problem, need, ... |
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| Commonality in Military Equipment. A Framework to Improve Acquisition Decisions |
Jan-2008 |
|
| Authors:
Bruce Newsome; Thomas Held; Matthew W Lewis; RAND CORP SANTA MONICA CA
|
 | Increasingly, the U.S. Army and the Department of Defense (DoD) as a whole are developing families of systems built around common components, For instance, the Army has procured a common model of tire (a component) across multiple vehicles (systems), which previously were procured with tires that were note alike. The Army has particularly pushed for common vehicle base models and infantry weapon systems. Historical examples of each of these cases ... |
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| High-Assurance System Support through 3-D Integration |
09 NOV 2007 |
|
| Authors:
Theodore Huffmire; Timothy Levin; Cynthia Irvine; Thuy Nguyen; Jonathan Valamehr; Ryan Kastner; Timothy Sherwood; NAVAL POSTGRADUATE SCHOOL MONTEREY CA CENTER FOR INFORMATION SYSTEMS SECURITY STUDIES AND RESEARCH
|
| While hardware resources, in the form of both transistors and full microprocessor cores, are now fairly abundant, economic factors continue to prevent the integration into commodity parts of specialized hardware mechanisms required for secure processing. Multi-core processors, due to their wide adoption, impressive performance, and low cost, are very attractive platforms for computation. Unfortunately, highly secure processing of sensitive information on such platforms is extremely difficult to achieve due to ... |
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| Measles Virus Nucleocapsid (MVNP) Gene Expression and RANK Receptor Signaling in Osteoclast Precursors, Osteoclast Inhibitors Peptide Therapy for Pagets Disease |
OCT 2007 |
27 pages |
| Authors:
Sakamuri V. Reddy; MEDICAL UNIV OF SOUTH CAROLINA CHARLESTON
|
| Pagers disease (PD) of bone occurs in 3-4% of population over the age of 50. We have identified expression of measles virus nucleocapsid transcripts in osteoclast (OCL) precursors and that MVNP expression induces pagetic phenotype in osteoclasts with increased bone resorption activity as seen in patients with Pagets disease. We previously cloned and identified osteoclast inhibitory peptide-I (01 P-I IhSca) which inhibits osteoclast formation and bone resorption. We hypothesize that ... |
|
| Using Performance Measures to Allocate Consumable Funding |
01-Jun-2007 |
29 pages |
| Authors:
David Fulk; Douglas Blazer; Deborah Hileman; LOGISTICS MANAGEMENT INST (LMI) LANGLEY AFB VA
|
| This presentation will show the how the Air Force can use performance measures to allocate funds for consumable items. Often times, funds are allocated to individual bases using past usage, regardless of the performance achieved. Further, funding cuts are often peanut butter spread evenly across bases regardless of the performance impacts. The Air Force is now using the Customer Oriented Leveling Technique (COLT) to determine levels for consumable items at ... |
|
| An Analysis of Manpower Requirements for the United States Marine Corps Tiers II and III Unmanned Aerial Systems Family of Systems Program |
JUN 2007 |
158 pages |
| Authors:
Cesar E. Nader; NAVAL POSTGRADUATE SCHOOL MONTEREY CA
|
| This research was conducted to examine the quantitative and qualitative component requirements for the Tier II and Tier III of the United States Marine Corps Unmanned Aerial Systems Program. The main objective of this research is to develop a proposed manpower structure for a composite squadron in order to improve current UAS capabilities while minimizing manpower requirements. This was accomplished by conducting an independent assessment of manpower requirements of the ... |
|
| An Evaluation of the Potential Failure Modes for Gaseous Agent Fire Extinguishing Systems Installed within the Protected Space |
FEB 2007 |
64 pages |
| Authors:
G. Back; E. Forssell; M. Boosinger; D. Beene; L. Nash; E. Weaver; COAST GUARD RESEARCH AND DEVELOPMENT CENTER GROTON CT
|
| A full-scale fire performance evaluation was conducted to assist the USCG in developing a position on the practice of installing gaseous agent fire extinguishing system components (i.e., agent cylinders and control valves) within the space they are protecting (i.e., machinery spaces). Testing was carried out to identify the potential failure modes of the system and its components. The evaluation assessed the survivability of a number of halocarbon and inert gas ... |
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| Speaking with a Commonality Language: A Lexicon for System and Component Development |
2007 |
49 pages |
| Authors:
Bruce Newsome; Matthew W. Lewis; Thomas Held; ARROYO CENTER PASADENA CA
|
| In recent years, the Army, and the U.S. Department of Defense (DoD) more broadly, has become increasingly interested in commonality the sharing of common parts across different entities. Commonality has implication for procurers, designers, developers, trainers, logisticians, and operators. Commonality offers many advantages and disadvantages; the trade-offs are sometimes difficult to discern and implement. To gain an understanding of the potential benefits and burdens (full life-cycle costs, training, and sustainment) ... |
|
| Measles Virus Nucleocapsid (MVNP) Gene Expression and RANK Receptor Signaling in Osteoclast Precursors, Osteoclast Inhibitors Peptide Therapy for Pagets Disease |
OCT 2006 |
36 pages |
| Authors:
Sakamuri V. Reddy; PITTSBURGH UNIV PA
|
| Paget's disease (PD) of bone occurs in 3-4% of population over the age of 50. We have identified expression of measles virus nucleocapsid transcripts in osteoclast (OCL) precursors and that MVNP expression induces pagetic phenotype in osteoclasts with increased bone resorption activity as seen in patients with Paget's disease. We previously cloned and identified osteoclast inhibitory peptide-I (OIP-1/hSca) which inhibits osteoclast formation and bone resorption. We hypothesize that MVNP expression ... |
|
| Generalized System of Preferences: Background and Renewal Debate |
26-Sep-2006 |
|
| Authors:
Vivian C Jones; LIBRARY OF CONGRESS WASHINGTON DC CONGRESSIONAL RESEARCH SERVICE
|
| The Generalized System of Preferences (GSP) provides duty-free tariff treatment to certain products imported from designated developing countries. The United States, the European Union, and other developed countries implemented such programs in the in the 1970s to promote economic growth in developing countries by stimulating their exports. The U.S. program (as established by Title V of the Trade Act of 1974) was last reauthorized through December 31, 2006 in section ... |
|
| Intelligent Semantic Query of Notices to Airmen (NOTAMs) |
JUL 2006 |
59 pages |
| Authors:
Robert Bobrow; BBN TECHNOLOGIES CAMBRIDGE MA
|
| The goal of this project was to develop computer technology to make NOTAM information available to Air Mobility Command (AMC) flight personnel (flight planners, managers and pilots), in a more timely and effective way. NOTAMs are notices containing information on the conditions, or changes to, aeronautical facilities, services, procedures, or hazards, which are essential information for flight operations. This project was part of the AFRL/IF Integrated Flight Management (IFM) Advanced ... |
|
| Theoretical Studies in Plasmas: Crossed-Field Devices and Ionospheric Plasmas |
19 JUN 2006 |
9 pages |
| Authors:
D. J. Kaup; DJ KAUP INC WINTER SPRINGS FL
|
| This is a final report on theoretical research on operation of magnetrons, crossed-filed amplifiers, and other related crossed-field devices. The methods used were analytical and numerical. The analytical methods used were mathematical techniques designed to separate the problem into smaller parts, wherein each part could be solved analytically. Then these parts could be fitted together in a numerical routine, which would obtain numerical solutions to this problem. This report covers ... |
|
| Decision Analysis to Support Condition-Based Maintenance Plus |
JUN 2006 |
111 pages |
| Authors:
Stephen E. Gauthier; NAVAL POSTGRADUATE SCHOOL MONTEREY CA DEPT OF OPERATIONS RESEARCH
|
| This thesis provides a stochastic modeling tool to assist in the component selection process for Army Aviation s Condition-Based Maintenance Plus (CBM+) program. This work is in conjunction with the Operations Research Center of Excellence (ORCEN) at the United States Military Academy to assist in providing insight for the U.S. Aviation and Missile Command (AMCOM). The component selected for this thesis is the AH-64/UH-60 T701C Turbine Helicopter Engine. Data analysis ... |
|
| Multi-Domain Hybrid Spectral-WENO Methods for Hyperbolic Conservation Laws |
22 FEB 2006 |
34 pages |
| Authors:
Bruno Costa; Wai S. Don; BROWN UNIV PROVIDENCE RI DIV OF APPLIED MATHEMATICS
|
| In this article we introduce the multi-domain hybrid Spectral-WENO method aimed at the discontinuous solutions of hyperbolic conservation laws. The main idea is to conjugate the non-oscillatory properties of the high order weighted essentially nonoscillatory (WENO) finite difference schemes with the high computational efficiency and accuracy of spectral methods. Built in a multi-domain framework, subdomain adaptivity in space and time is used in order to maintain the solutions parts exhibiting ... |
|
| Detecting Instances of Shape Classes That Exhibit Variable Structure |
17 FEB 2006 |
16 pages |
| Authors:
Vassilis Athitsos; Jingbin Wang; Stan Sclaroff; Margrit Betke; SIEMENS CORPORATE RESEARCH PRINCETON NJ
|
| This paper proposes a method for detecting shapes of variable structure in images with clutter. The term variable structure means that some shape parts can be repeated an arbitrary number of times, some parts can be optional, and some parts can have several alternative appearances. The particular variation of the shape structure that occurs in a given image is not known a priori. Existing computer vision methods, including deformable model ... |
|
| Decision-Support Quantitative Models for Valuing Incentives in Performance Based Contracts |
JUN 2005 |
112 pages |
| Authors:
Michael Aguilar; George C. Estrada; Jeffrey J. Myers; NAVAL POSTGRADUATE SCHOOL MONTEREY CA
|
| The purpose of this MBA project is to identify the actual cost savings when a Performance-Based Logistics (PBL) contract, with incentives, is awarded to replace a specified maintenance echelon for critical components or subcomponents of systems. The authors examine the impact on system availability to determine if a proposed investment will be practical. The entire logistics flow and maintenance processes, to include all associated sub-activities, are analyzed. To do this, ... |
|
| A Comprehensive Context for Mobile-Code Deployment |
2005 |
77 pages |
| Authors:
Michael Franz; CALIFORNIA UNIV IRVINE DEPT OF INFORMATION AND COMPUTER SCIENCE
|
| Given the acknowledged importance of mobile code, current distribution models are surprisingly primitive. For example, Java's model assumes that the constituent parts that make up a mobile program will all be downloaded to a single location, and then verified, linked, possibly dynamically compiled, and finally executed at that very location. This research project made three important contributions: First, it demonstrated that it can be beneficial to perform verification, dynamic compilation, ... |
|
| Distributed Deployment of Therminators in the Network |
DEC 2004 |
107 pages |
| Authors:
Cheng K. Wai; NAVAL POSTGRADUATE SCHOOL MONTEREY CA
|
| The idea of deploying a distributed network intrusion system using Therminator is explored in this thesis. There are many advantages in having a distributed system compared to a standalone network intrusion system. The underlying principle of Therminator is modeling network traffic on conversation exchange models. Using Zippo a new implementation of Therminator the experimental setup consisted of multiple sensors reporting individual findings to a central server for aggregated analysis. Different ... |
|
| Control Authority of a Projectile Equipped With an Internal Unbalanced Part |
NOV 2004 |
60 pages |
| Authors:
Geoffrey W. Frost; Mark F. Costello; OREGON STATE UNIV CORVALLIS
|
| A key technical challenge for smart weapon developers is design of appropriate control mechanisms that provide sufficient control authority to enable correction of typical trajectory errors while not excessively burdening the overall weapon design. The work reported here considers a rotating mass unbalance control mechanism created by radial orientation of an internal part. To investigate the potential of this control mechanism, a seven degree-of- freedom flight dynamic model of a ... |
|
| Laser-Based Repair System Reclaims High Value Military Components |
01 JUN 2004 |
5 pages |
| Authors:
Richard Plourde; OPTOMEC DESIGN CO ALBUQUERQUE NM
|
| Repair operations such as welding extend the life of high-value components in aircraft, tanks, and other military vehicles. In many cases, however, high-temperature welding processes will distort and weaken delicate metal components. Deemed irreparable, these expensive components are scrapped and replaced with new parts. Due to the age of some weapon systems, many times it is difficult locating new parts via the supply chain. To reclaim damaged parts, military facilities ... |
|
| Size Reduction Research for the Universal Initiator CY2001 Report |
JUN 2004 |
27 pages |
| Authors:
William Lawler; Dan Judy; ARMY RESEARCH LAB ADELPHI MD
|
| We describe two aspects of miniaturization research for the proposed universal initiator (UI) system. The UI would combine functionality of the remote activation munitions system (RAMS) and the sympathetic detonation (SYDET) system. First, we discuss the results of a market survey of candidate display devices for UI, where we conclude that organic light emitting diode device technology is most appropriate. We also discuss twisted nematic liquid crystal diode device technology ... |
|
| Size Reduction Research for the Universal Initiator CY2001 Report |
JUN 2004 |
27 pages |
| Authors:
William Lawler; Dan Judy; ARMY RESEARCH LAB ADELPHI MD SENSORS AND ELECTRON DEVICES DIRECTORATE
|
| We describe two aspects of miniaturization research for the proposed universal initiator (UI) system. The UI would combine functionality of the remote activation munitions system (RAMS) and the sympathetic detonation (SYDET) system. First, we discuss the results of a market survey of candidate display devices for UI, where we conclude that organic light emitting diode device technology is most appropriate. We also discuss twisted nematic liquid crystal diode device technology ... |
|
| Powder-Based Work at Edwards AFB |
29 APR 2004 |
11 pages |
| Authors:
Wesley P. Hoffman; AIR FORCE RESEARCH LAB EDWARDS AFB CA SPACE AND MISSILE PROPULSION DIV
|
| Areas of interest are bulk nanophase aluminum parts for aerospace and astronautics applications and metallic coatings for microtubecomponents. Nanocrystalline materials are defined as polycrystalline materials with crystallites that have manometer rather than micron dimensions. In contrast to conventional course-grained materials, the number of atoms in the grain boundaries can equal or exceed those in the crystal lattice sites. They are materials with superior properties which include: increased strength (for aluminum ... |
|
| Applying Theory of Constraints Principles and Lean Thinking at the Marine Corps Maintenance Center (Defense Acquisition Review Journal) |
2004 |
13 pages |
| Authors:
Mandyam Srinivasan; Darren jones; Alex Miller; OFFICE OF THE UNDER SECRETARY OF DEFENSE FOR ACQUISITION TECHNOLOGY AND LOGISTICS WASHINGTON DC
|
| The Maintenance Center for the Marine Corps Logistics Base, Albany, Georgia, launched a program in 2001 combining principles drawn from the Theory of Constraints and Lean thinking The Center had been constantly plagued by apparent capacity shortages in virtually every department and additional manpower was being considered. An analysis using Theory of Constraints revealed that there was, in fact, more than adequate capacity to handle the workload. The perceived lack ... |
|
| Inventory Planning for Remanufacturing |
11 DEC 2003 |
209 pages |
| Authors:
Kevin J. Gaudette; AIR FORCE INST OF TECH WRIGHT-PATTERSONAFB OH
|
| Remanufacturing is a process by which a used product called a "core" is restored to like-new condition. The process involves disassembling the core down to its constituent used parts, differentiating between serviceable parts and scrap, and using a combination of serviceable parts and new parts to rebuild the product. A critical component of the process from an operational standpoint is the planning of core purchases, disassemblies, and new part purchases. ... |
|
| Quantifying the Effect of Commercial Transportation Practices in Military Supply Chains |
DEC 2003 |
119 pages |
| Authors:
Manuel D. Rossetti; Scott J. Mason; Joshua B. McGee; Mohsen Manesh; Ashlea Bennett; Ryan Houx; Amanda Mills; ARKANSAS UNIV FAYETTEVILLE DEPT OF INDUSTRIAL ENGINEERING
|
| This research examines the Multi-Indenture Multi-Echelon (MIME) repairable inventory system used by the United States Air Force, reviews the literature documenting successful commercial practices that have been implemented in similar supply chains, and documents the metrics used in private industry to assess supply chains. Using simulation, this research assesses the effect of applying such commercial practices to military supply chains, and then evaluates the results by using private industry metrics ... |
|
| Layered Manufacturing: Challenges and Opportunities |
19 NOV 2003 |
13 pages |
| Authors:
Khershed P. Cooper; NAVAL RESEARCH LAB WASHINGTON DC MATERIAL SCIENCE AND TECHNOLOGY DIV
|
| Layered Manufacturing (LM) refers to computer-aided manufacturing processes in which parts are made in sequential layers relatively quickly. Parts that are produced by LM can be formed from a wide range of materials such as photosensitive polymers, metals and ceramics in sizes from a centimeter to a few meters with sub-millimeter feature resolutions LM has found use in diverse areas including biomedical engineering, pharmaceuticals, aerospace, defense, electronics and design engineering. ... |
|
| Surface Over-Melt during Laser Polishing of Indirect-SLS Metal Parts |
19 NOV 2003 |
12 pages |
| Authors:
J. A. Ramos; D. L. Bourell; J. J. Beaman; TEXAS UNIV AT AUSTIN DEPT OF MECHANICALENGINEERING
|
| Laser polishing of indirect-SLS parts made from 420 stainless powder infiltrated with bronze has been achieved using CO2 and Nd:YAG lasers. Two mechanisms have been previously proposed for the reduction in surface roughness, namely: shallow surface melting (SMM) and surface over-melt (SOM). In SMM reflow of the molten surface minimizes the peak-valley height driven by capillary pressure and liquid curvature. On the other hand, during SOM the melting depth is ... |
|
| Micro-Fabrication of Spray Cooling Nozzles for High-Power Diode Laser Arrays |
28 AUG 2003 |
10 pages |
| Authors:
Louis C. Chow; UNIVERSITY OF CENTRAL FLORIDA ORLANDO DEPT OF MECHANICAL MATERIALS AND AEROSPACE ENGINEERING
|
| An important growing field in today's engineering is the development of Micro-Electrical and Mechanical Systems (MEMS). Over the years there have been many different fabrication processes that have been developed to meet these new demands. Most of the current micro-fabrication techniques work well for simple two-dimensional components. However, the demand for more complicated three-dimensional parts requiring a high aspect ratio requires that a new approach must be taken to make ... |
|
| Stainless Steel-Copper Composite Material |
04 AUG 2003 |
19 pages |
| Authors:
Peter J. Hardro; DEPARTMENT OF THE NAVY WASHINGTON DC
|
| The present invention relates to a stainless steel copper composite material which may be used to manufacture parts and tools requiring working temperatures up to 1,000 degrees. Centigrade and to a method making the composite material to a desired form using either cold pressing or selective laser sintering. |
|
| Molybdenum-Copper Composite Material |
04 AUG 2003 |
19 pages |
| Authors:
Peter J. Hardro; DEPARTMENT OF THE NAVY WASHINGTON DC
|
| Accordingly, it is an object of the present invention to provide a composite material that offers the ability to create tools and prototype parts requiring working temperatures up to 1000 degrees Centigrade. It is a further object of the present invention to provide a composite material as above which has a low coefficient of thermal expansion. It is still a further object of the present invention to provide a method ... |
|
| Successful Initial Development of Styrene Substitutes and Suppressants for Vinyl Ester Resin Formulations |
AUG 2003 |
60 pages |
| Authors:
John J. La Scala; Eric J. Robinette; Giuseppe R. Palmese; James M. Sands; Joshua A. Orlicki; DREXEL UNIV PHILADELPHIA PA WAVE PROPAGATION RESEARCH CENTER
|
| Recently, the U.S. Environmental Protection Agency (EPA) increased legislation to address hazardous emissions from composite manufacturing and repair by enacting new emission standards through the "National Emission Standards for Hazardous Air Pollutants: Reinforced Plastic Composites Production," which specifically targets styrene, methyl methacrylate, and methylene chloride as regulated hazardous air pollutants (HAP). Volatile organic compound (VOC) emissions are liberated during all phases of composite fabrication (Figure 1). Styrene emissions occur during ... |
|
| Manufacturing of Composite Parts Via VARTM |
02 JUL 2003 |
49 pages |
| Authors:
D. Heider; J. W. Gillespie; DELAWARE UNIV NEWARK CENTER FOR COMPOSITE MATERIALS
|
| Briefing charts only. |
|
| Nutrients in the Upper Mississippi River: Scientific Information to Support Management Decisions. The Upper Mississippi River - Values and Vulnerability |
JUL 2003 |
6 pages |
| Authors:
DEPARTMENT OF THE INTERIOR WASHINGTON DC
|
| The Upper Mississippi River (UMR) flows south about 1,300 miles from its headwaters in Minnesota to its confluence with the Ohio River at Cairo, Illinois. The river gains volume along its path as it drains nearly 190,000 square miles (490,000 km2) of land, extending over parts of South Dakota, Minnesota, Wisconsin, Iowa, Illinois, and Missouri (fig. 1). The UMR is valued as a multiple-use resource where commercial navigation, water supply, ... |
|
| Mobile Parts Hospital - The Agile Manufacturing Cell Provides Critical Parts to Soldiers in Battle |
09 MAY 2003 |
2 pages |
| Authors:
Todd Richman; ARMY TANK-AUTOMOTIVE COMMAND WARREN MI
|
| The Mobile Parts Hospital (MPH) program objective is to provide critical replacement and repair parts to vehicles or systems that have been downed in the battlefield. The MPH combines the latest manufacturing infrastructure and technologies in a mobile unit that can readily travel to any destination, along with support from Continental United States CONUS based Agile Manufacturing Cell. Both standard and unique replacement parts can be manufactured from technical data ... |
|
| Computer Aided Thermal Analysis of a Technology Demonstration Satellite (NPSAT1) |
05 MAY 2003 |
169 pages |
| Authors:
Martin Gruhlke; NAVAL POSTGRADUATE SCHOOL MONTEREY CA SPACE SYSTEMS ACADEMIC GROUP
|
| The thermal control system of a spacecraft is used to maintain all subsystems within their temperature limits. It must be able to deal with different operational states and orbital environments. Theory provides knowledge about the quality of effects of certain designs options but for a complex system like a spacecraft simulations are needed for qualification. This thesis has two main purposes. Critical parts concerning thermal control in the current design ... |
|
| Environmentally Assisted Cracking Properties of AA7249 Extrusions for Aerospace Applications |
02 MAY 2003 |
64 pages |
| Authors:
Kristen L. Deffenbaugh; NAVAL ACADEMY ANNAPOLIS MD
|
| The Development of new military aerospace platforms is costly and time-consuming. Therefore, it is important that current platforms maximize their service lifetime. Exposure to environmental elements, particularly seawater, is especially troublesome to the Navy because it shortens required aircraft lifetime. The P-3C is an example of a versatile aircraft whose lifetime has been extended to the point that environmental attacks is now becoming a significant concern. Structural components in the ... |
|
| Acquisition: Allegations Concerning Government Acceptance Procedures for a Contractor's Parts |
21 MAR 2003 |
22 pages |
| Authors:
INSPECTOR GENERAL DEPT OF DEFENSE ARLINGTON VA
|
| In a February 19, 2001 letter, Congressman Robert Andrews requested that the Office of the Inspector General of the Department of Defense (OIG DoD) provide assistance to the owner of a small business in New Jersey, that manufactured and supplied parts to the Government The contractor reported having problems executing contracts with the Defense Contract Management Command (DCMC) dating back to October 1999, However, on June 7, 2001, the contractor ... |
|
| An Empirical Analysis of the Impacts of Adopting Lean Purchasing and Supplier Management Principles on the Participation of Small Business Within the Department of Defense Aerospace Industry |
MAR 2003 |
105 pages |
| Authors:
James A. Hageman; AIR FORCE INST OF TECH WRIGHT-PATTERSON AFB OH SCHOOL OF ENGINEERING AND MANAGEMENT
|
| The Small Business Act requires that small business concerns be afforded the maximum practicable opportunity to participate in Federal contracts and subcontracts. The contract dollars awarded to small businesses by the Air Force have been on the decline for several years and the Air Force is not meeting its small business award goals. This thesis is a follow-on research effort to that conducted by Mr. Bruce Miller (GAQ-2M) who proposed ... |
|
| Monitoring of Advanced Composite Weave Structures Using Multi-Axis Fiber Grating Strain Sensors |
2003 |
8 pages |
| Authors:
Katy Davol; Eric Udd; Steve Kreger; Marley Kunzler; Marty Laylor; Dirk Heider; Zhicheng Yu; BLUE ROAD RESEARCH GRESHAM OR
|
| The feasibility of using multi-axis fiber grating strain sensors to monitor transverse strain and transverse strain gradients to complex, woven composite structures has been evaluated. This paper overviews the multi-axis fiber optic grating strain sensors and how they can be applied to measuring multidimensional strain fields interior to composite parts with complex composite weave structures. Experimental results are given for the case of a bi-axially woven composite coupon as well ... |
|
| Supply Inventory Management: Property Accountability at Research , Development, Test, and Evaluation Installations |
16 DEC 2002 |
20 pages |
| Authors:
INSPECTOR GENERAL DEPT OF DEFENSE ARLINGTON VA
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| Logistics personnel having a responsibility for property accountability should read this report. This report evaluates the Military Departments' improvement in maintaining property accountability over personal property at research, development, test, and evaluation installations, Personal property at research, development, test, and evaluation installations includes military equipment and most other types of property, except for real property, consumable items, component parts of a higher assembly, and items that lose their individual identity ... |
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