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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.
11

Zeroing in a capabilities-based alternative to precision guided munitions planning /

Loeb, Sam. January 2005 (has links)
Thesis (Ph. D.)--RAND Graduate School, 2005. / Includes bibliographical references.
12

Forgetting correctly : the Air Force and strategic adjustment /

Hickman, Kevin D. January 2008 (has links)
Thesis (M.S.)--School of Advanced Air and Space Studies, 2008. / "June 2008." Vita. Includes bibliographical references (p. 58-63). Also available via the Internet.
13

"Warden och den irreguljära konflikten" : Har Wardens teorier spelat ut sin roll? / "Warden and irregular warfare" : Have Warden played out his role?

Rapp, Joel January 2011 (has links)
Johan A. Warden tog fram sin modell om motståndaren som ett system för att genom denna hitta dess svagheter. Modellen visade sig vara mycket användbar inom mellanstatliga konflikter och var mycket effektiv vid planerandet och genomförandet av USA:s offensiv mot Irak under inledningen av Gulfkriget. Men kopplat mot irreguljära konflikter har Wardens modell stött på mycket kritik då den anses spelat ut sin roll och därför inte längre kan anses applicerbar vid planerandet av luftoperationer inom denna typ av krigföring. Denna uppsats skall se om det är precisionsvapen och användandet av dessa som räddar kvar Warden inom planeringen av luftoperationer inom irreguljär krigföring. / John A. Warden developed the Five ring model and the enemy as a system. These models where used as a tool to find the enemies weak points. These models proved useful in a conventional conflict, and where very effective during the planning and execution of Operation Desert Storm. In recent times Wardens theories has been a subject of a debate, stating that they have played out there role as an effect of irregular warfare. This essay is going to try to see if it is precision-guided munitions that save Wardens theories in the fields of modern air-warfare planning in irregular warfare.
14

Applications of internal translating mass technologies to smart weapons systems

Rogers, Jonathan 28 September 2009 (has links)
The field of guided projectile research has continually grown over the past several decades. Guided projectiles, typically encompassing bullets, mortars, and artillery shells, incorporate some sort of guidance and control mechanism to generate trajectory alterations. This serves to increase accuracy and decrease collateral damage. Control mechanisms for smart weapons must be able to withstand extreme acceleration loads at launch while remain simple for cost and reliability reasons. One type of control mechanism utilizes controllable internal translating masses (ITM's) that oscillate within the projectile to generate control forces. Several techniques for using internal translating masses for smart weapon flight control purposes are explored here. Specifically, the use of ITM's as direct control mechanisms, as a means to increase control authority, and as a means to protect the smart weapons sensor suite are examined. It is first shown that oscillating a mass orthogonal to the projectile axis of symmetry generates reasonable control force in statically-stable rounds. Trade studies examine the impact of mass size, mass offset from the center of gravity, and reductions in static stability on control authority. Then, the topic of static margin control through mass center modification is explored. This is accomplished by translating a mass in flight along the projectile axis of symmetry. Results show that this system allows for greater control authority and reduced throw-off error at launch. Another study, aimed at examining shock reduction potential at launch rather than static margin alteration, also considers ITM movement along the projectile centerline. In these studies, the ITM is comprised of sensitive electronic sensors, and is configured as a first-order damper during launch. Trade study results show that although the mechanism cannot substantially reduce the magnitude of launch loads, it is successful at dampening harmful structural vibrations typically experienced after muzzle exit. Finally, an active control system is developed for the ITM control mechanism using sliding mode methodology. Example cases and Monte Carlo simulations incorporating model uncertainties and sensor errors show that ITM control of projectiles can substantially reduce dispersion error. Furthermore, the novel sliding mode control law is shown to be highly robust to feedback disturbances. In a final study, combined ITM-canard control of projectiles is explored, concluding that ITM mechanisms can serve as a useful supplement in increasing the efficiency of currently-deployed control mechanisms.
15

The speed of precision : How the OODA loop benefits from accurate technology

Langhard, Jessie January 2020 (has links)
This paper examines how precision resources, such as Precision Guided Munitions (PGM) and Unmanned Aerial Systems (UAS), can affect the OODA loop decision making cycle. PGMs add precision and force to kinetic strikes, whilst UASs bring precision and endurance to the Intelligence, Surveillance and Reconnaissance (ISR) field. The research is conducted as a qualitative case study with two cases - the first one being Operation Desert Storm (1991) where precision weapons were first introduced in a large scale operation, and the second one being Operation Iraqi Freedom (2003) which was conducted in a similar environment and organization, but with a huge technological advancement when it came to PGMs and UASs. The four phases of the OODA loop are examined separately, and the two cases are compared to reveal any similarities or differences. The results indicate that precision resources have a beneficial impact on the speed and accuracy of all four phases, as well as the overall efficiency of the OODA loop. The results also indicate the importance of having sound intelligence (which cements John Boyd’s claim that Orientation is the most important part of the loop) and that the next challenge after precision and ISR-capabilities might be successful coordination of the joint forces on tactical and operational levels to gain speed even further.
16

Analysis of high-speed vessels for Seventh Fleet logistics support

Morgan, Eric A. 03 1900 (has links)
Approved for public release, distribution is unlimited / Commander, Logistics Group, Western Pacific (COMLOGWESTPAC) is concerned with the delivery of high priority material, ordnance, and passengers to U.S. Navy ships due to a very large operations area and limited Combat Logistics Force (CLF) assets. High-speed vessels (HSVs) may have the potential to improve the delivery of these materials when used to complement existing logistics shuttle ships. This thesis quantifies current levels of traditional naval logistics support and provides comparison to HSV-based alternatives in various scenarios. The CLF Scenario Analysis Tool (CLFSAT), a newly developed discrete event simulation model of naval logistics support, performs the analysis. Given a scenario depicting combatant movements and operations, CLFSAT provides insight into the comparative performance of different supporting naval logistics force structures. This analysis determines that HSVs can be effective logistics platforms in specific scenarios when distributing high priority material, ordnance, and stores. HSVs are very effective in small theaters with short transit distances, but for larger theaters, their effectiveness is inversely proportional to distance from the Forward Logistics Site. Regardless of theater size, HSVs show significant improvements in theater distribution of "low density, high priority" cargo, such as precision guided munitions (PGMs) or critical repair parts when customers are outside COD range. / Lieutenant Commander, United States Navy

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