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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
21

Comparison of combat system architectures for future surface combatants

Young, M. Bridget 23 December 2009 (has links)
Master of Science
22

A methodology for analyzing availability improvements for army rotorcraft

Melnyk, Richard V. 01 December 2003 (has links)
No description available.
23

A methodology for the quantification of doctrine and materiel approaches in a capability-based assessment

Tangen, Steven Anthony 06 April 2009 (has links)
Due to the complexities of modern military operations and the technologies employed on today's military systems, acquisition costs and development times are becoming increasingly large. Meanwhile, the transformation of the global security environment is driving the U.S. military's own transformation. In order to meet the required capabilities of the next generation without buying prohibitively costly new systems, it is necessary for the military to evolve across the spectrum of doctrine, organization, training, materiel, leadership and education, personnel, and facilities (DOTMLPF). However, the methods for analyzing DOTMLPF approaches within the early acquisition phase of a capability-based assessment (CBA) are not as well established as the traditional technology design techniques. This makes it difficult for decision makers to decide if investments should be made in materiel or non-materiel solutions. This research develops an agent-based constructive simulation to quantitatively assess doctrine alongside materiel approaches. Additionally, life-cycle cost techniques are provided to enable a cost-effectiveness trade. These techniques are wrapped together in a decision-making environment that brings crucial information forward so informed and appropriate acquisition choices can be made. The methodology is tested on a future unmanned aerial vehicle design problem. Through the implementation of this quantitative methodology on the proof-of-concept study, it is shown that doctrinal changes including fleet composition, asset allocation, and patrol pattern were capable of dramatic improvements in system effectiveness at a much lower cost than the incorporation of candidate technologies. Additionally, this methodology was able to quantify the precise nature of strong doctrine-doctrine and doctrine-technology interactions which have been observed only qualitatively throughout military history. This dissertation outlines the methodology and demonstrates how potential approaches to capability-gaps can be identified with respect to effectiveness, cost, and time. When implemented, this methodology offers the opportunity to achieve system capabilities in a new way, improve the design of acquisition programs, and field the right combination of ways and means to address future challenges to national security.
24

Process enhancement and database support for vehicle operational readiness reporting

Menko, Russell H. 12 1900 (has links)
Approved for public release, distribution is unlimited / The U.S. Army uses a Unit Readiness Index to track the combat readiness of systems. The Unit Readiness Index relies on the accuracy of automated and manual testing of the hardware and related software of the Line Replaceable Units (LRUs) that comprise the system. These tests are based on a GO/NOGO scenario. When an LRU fails, vehicle commanders, and commanders up the chain of command, can override the failure and continue with a mission. Overriding the NOGO recommendations produces a false combat readiness status for the unit, and creates a number of problems related to unit combat decisions as well as logistical support. This thesis introduces a new process for more effectively tracking combat readiness. It outlines some of the problems associated with the current GO/NOGO scenario and examines the current tests, artifacts and data available from the current process. It proposes an additional Report process and shows how this new process will eliminate the readiness tracking problems associated with the GO/NOGO scenario. It also presents the design of a Vehicle Database and Master Fault Database to support the proposed process, and presents several sample reports generated from this Master Fault Database. / Civilian, United States Army RDECOM - TARDEC
25

An analysis of the integrated mechanical diagnostics health and usage management system on rotor track and balance

Revor, Mark S. 06 1900 (has links)
Approved for public release, distribution is unlimited / This thesis is concerned with the operational benefit of the Integrated Mechanical Diagnostics Health and Usage Management Systems (IMD HUMS) rotor track and balance (RTB) functionality. The questions addressed are whether there is a savings in flight hours expended on functional check flights (FCF's) when compared to present practices, if there will there be a reduction in directed maintenance man-hours (DMMH) spent on maintenance related to the rotor system, and the impact on Operational Availability. Experiments were conducted using a discrete event simulation model of squadron flight operations and organizational level maintenance. The simulation is generic and can be used in the analysis of other helicopters. Input parameters governing the distributions of maintenance action inter-arrival times were estimated from Naval Aviation Logistics Data Analysis (NALDA) databases and squadron experiences on such systems. The analysis suggests that flight hours spent in FCF are dependent upon vibration growth rate, an unknown quantity, and the maintenance policy for rotor smoothing. Directed maintenance man-hours decrease with increasing numbers of IMD HUMS configured aircraft and further gains are achieved with a maintenance policy suited to a continuous monitoring system. / Captain, United States Marine Corps
26

Keeping the warfighting edge : an empirical evaluation of Army officers' tactical expertise over the 1990s /

Leed, Maren, January 2000 (has links)
Thesis (Ph.D.)--RAND Graduate School, 2000. / "RAND Graduate School." Includes bibliographical references (p. 103-120). Also available on the internet via WWW in PDF format.
27

A methodology for quantitative and cooperative decision making of air mobility operational solutions

Salmon, John LaNay 20 September 2013 (has links)
Many complex and interdependent systems engineering challenges involve more than one stakeholder or decision maker. These challenges, such as the definition and acquisition of future air mobility systems, are often found in situations where resources are finite, objectives are conflicting, constraints are restricting, and uncertainty in future outcomes prevail. Air mobility operational models which simulate fleet wide behavior effects over time, in various mission scenarios, and potentially over the entire design life-cycle, are always multi-dimensional, cover a large decision space, and require significant time to generate sufficient solutions to adequately describe the design space. This challenge is coupled with the fact that, in these highly integrated solutions or acquisitions, multiple stakeholders or decision makers are required to cooperate and reach agreement in selecting or defining the requirements for the design or solution and in its costly and lengthy implementation. However, since values, attitudes, and experiences are different for each decision maker, reaching consensus across the multiple criteria with different preferences and objectives is often a slow and highly convoluted process. In response to these common deficiencies and to provide quantitative analyses, this research investigates and proposes solutions to two challenges: 1) increase the speed at which operational solutions and associated requirements are generated and explored, and 2) systematize the group decision-making process, to both accelerate and improve decision making in these large operational problems requiring cooperation. The development of the Air Mobility Operations Design (AirMOD) model is proposed to address the first challenge by implementing and leveraging surrogate models of airlift capability across a wide scenario space. In addressing the second major challenge, the proposed Multi-Agent Consensus Reaching on the Objective Space (MACRO) methodology introduces a process to reduce the feasible decision space, by identifying regions of high probability of consensus reaching, using preference distributions, power relationships, and game-theoretic techniques. In a case study, the MACRO methodology is demonstrated on a large air mobility solution space generated by AirMOD to illustrate plausibility of the overall approach. AirMOD and MACRO offer considerable advantages over current methods to better define the operational design space and improve group decision-making processes requiring cooperation, respectively.
28

The Effects of consolidating F-16 phase and cannibalization aircraft on key maintenance indicators

Powell, Matthew J. January 2007 (has links)
Thesis (M. of Military Art and Science)--U.S. Army Command and General Staff College, 2007. / The original document contains color images. Title from title page of PDF document (viewed on May 27, 2008). Includes bibliographic references.
29

Impact of psychological wellbeing and perceived combat readiness on willingness to deploy in the SANDF : an exploratory study

Nkewu, Zingcwengile 04 1900 (has links)
Thesis (MComm)--Stellenbosch University, 2014. / ENGLISH ABSTRACT: The South African National Defence Force (SANDF) is deploying locally, regionally and internationally for peacekeeping operations and tasks other than peacekeeping. It is imperative that it succeed in these missions in order for the country, region and the world to develop. However, in order for the SANDF to realize success those responsible for the task of peacekeeping have to be combat ready, and particularly perceive themselves to be combat ready, they have to measure high on psychological wellbeing and should have no psychosocial and/or psychological problems such as depression, anxiety and social dysfunction, but must have a high level of willingness to deploy. SANDF deployment in Africa is voluntary and depends on those members who are willing to deploy to extract Africa out of the mire of squalor and poverty and conflict. It is only when there is peace that development and proper governance can be achieved, hence the need to use the SANDF as a foreign policy tool to bring about peace in Africa. The aim of the study was to explore the impact of psychological wellbeing (PWB) general health (GH) and perceived combat readiness (PCR) on willingness to deploy (WD) in the SANDF. A non-experimental, exploratory study was employed this study. Participants were drawn from the Army (n=465) from the rank of private to colonel. Participants completed valid reliable instruments measuring PWB; PCR; GH; and WD. PWB was measured in terms of self-acceptance, positive relations with others, autonomy, purpose in life, environmental mastery, and personal growth. PCR was measured in terms of family support, confidence (in all its dimensions), morale, and cohesion and unit discipline. GH was measured in terms of somatic symptoms, anxiety/insomnia, social dysfunction and depression. WD was measured by using 12 questions with a sample question such as: “In the event of an invasion by an enemy force into the RSA, to what extent will you be willing to go into combat?” Correlation analysis was done to determine the relationship between the independent variables and the dependent variable. Multiple regression analysis was done to determine which of the independent variables contributed most to WD of members of the SANDF The results revealed a significant positive relationship between PWB (and its dimensions, except self-acceptance and positive relations with others) and WD, and PCR (and its dimensions, except unit disciple) and WD. GH was annulled for its potential not to explain any variance in the model because almost all participants scored zero on all subscales. The multiple regression analysis was in line with correlation results showing that total PCR (strongest predictor) made a significant contribution in explaining and predicting WD. PWB made a contribution in explaining and predicting WD, but not as strong as PCR. The PCR dimensions that individually contribute significantly in explaining and predicting WD are self-confidence, horizontal cohesion and confidence in the leader. The conclusion that is drawn from this study is that total PCR and total PWB contribute to willingness to deploy.
30

A Triumph of improvisation : Australian Army operational logistics and the campaign in Papua, July 1942 to January 1943

Moremon, John Clifford, History, Australian Defence Force Academy, UNSW January 2000 (has links)
This thesis examines the Australia Army???s campaign on Papua from July 1942 to January 1943 with the focus on logistic support of the fighting arms and the relation of logistics to the tactics of tropical jungle warfare. It begins by examining the traditional approach to logistics in the military profession - the experience of Australian officers and forces in particular - from the First World War until May 1942, when the Australian territory of Papua was invaded. It establishes that the Army was poorly prepared because, as well as having never anticipated a prolonged land campaign in Papua-New Guinea, it lacked the logistic resources and knowledge of logistics as applicable to tropical jungle warfare. It then proceeds to examine the retreat over the Kokoda Track and the turning-point battles for Milne Bay and Imita Ridge. It demonstrates that the principal factor in the Australian retreat was logistic failure, as geography and lack of logistic resources prevented adequate supply of the fighting arms at least until lines of communication had been shortened; even then, difficulties remained. The thesis is rounded off by assessing the counter-attack across the territory of Papua for the capture of the enemy???s beachheads at Buna, Gona and Sanananda. It concludes that, as the island???s geography and tropical environment so dominated operations and since shortages of logistic equipment and units persisted, the Army could not perfect its logistic organisation by the end of this first phase of the New Guinea campaign. It fell back on improvisation and the fortitude of troops to triumph over the Japanese.

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