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Dissertations / Theses on the topic 'Damage Control System'

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1

Paccapeli, Roberto. "Control of mechanical system in smart structures : variational approaches for detecting damage." Paris 6, 2011. http://www.theses.fr/2011PA066640.

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L'objectif de ce travail est de développer des techniques de contrôle appliées aux structures électromécaniques, qui incluent éléments piézoéletriques utilisés comme actionneurs et capteurs. Les dispositifs faisant appel à un couplage piezoélectromécanique peuvent ameliorer les performances dynamiques des milieus et des éléments structurels et, donc, ils peuvent adapter eux-mêmes aux excitations externes. Comme la fonction de Lagrange associée au système mècanique est elle-même stable, la stratègie passive (i. E. Le circuit relié aux éléments piézoélectriques est constitué de composants passif
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2

Salikin, Md Saion. "An improved system of damage limitation for better risk control in radiological protection near environmental level." Thesis, University of St Andrews, 1995. http://hdl.handle.net/10023/13372.

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In radiological protection, models are used to assess radiation risk by means of extrapolation from high dose and dose rate to low dose and dose rate. In this thesis five main biophysical models of radiation action have been evaluated, appraised and inter-compared. The five models are lethal and potentially lethal (LPL) by Curtis, pairwise lesion interaction (PLI) by Harder, cellular track structure (CTS) by Katz, hit size effectiveness (HSE) by Bond and Varma and track core (TC) by Watt. Each model has been developed based on certain underlying mechanisms or phenomena, to permit interpretatio
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3

Jiang, Xiaomo. "Dynamic fuzzy wavelet neural network for system identification, damage detection and active control of highrise buildings." Connect to this title online, 2005. http://rave.ohiolink.edu/etdc/view?acc%5Fnum=osu1110266591.

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Thesis (Ph. D.)--Ohio State University, 2005.<br>Title from first page of PDF file. Document formatted into pages; contains xvii, 221 p.; also includes graphics (some col.). Includes bibliographical references (p. 210-221). Available online via OhioLINK's ETD Center
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4

Gage, Jon G. "An investigation into the impacts of adding an automated damage control system to a coast guard 270' WMEC cutter." Monterey, California. Naval Postgraduate School, 1997. http://hdl.handle.net/10945/8571.

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Approved for public release; distribution is unlimited<br>This investigation studied the ship impacts of adding an automated damage control system to a Coast Guard vessel. The available new technology may allow better damage control systems to be utilized aboard Coast Guard vessels, with potential accompanying manning reductions. This study attempts to quantify some of the expected changes in parameters and how they may be applied to other new ship designs. This study was carried out in three distinct parts: 1) A technology assessment of existing and proven damage control technologies for poss
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5

Russell, Kevin Joseph. "Model-Centric Interdependent Critical Infrastructure System Recovery Analysis and Metrics." Diss., Virginia Tech, 2016. http://hdl.handle.net/10919/71671.

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This dissertation defines and evaluates new operations management modeling concepts for use with interdependent critical infrastructure system reconfiguration and recovery analysis. The work combines concepts from Graph Trace Analysis (GTA), Object Oriented Analysis and Design (OOAandD), the Unified Modeling Language (UML) and Physical Network Modeling; and applies them to naval ship reduced manned Hull, Mechanical, Electrical and Damage Control (HMEandDC) system design and operation management. OOAandD problem decomposition is used to derive a natural solution structure that simplifies inte
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6

Bai, Hao. "Machine learning assisted probabilistic prediction of long-term fatigue damage and vibration reduction of wind turbine tower using active damping system." Thesis, Normandie, 2021. http://www.theses.fr/2021NORMIR01.

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Cette thèse est consacrée au développement d'un système d'amortissement actif pour la réduction des vibrations du mât d'éoliennes en cas de vent avec rafales et de vent avec turbulence. La présence de vibrations entraîne souvent soit une déflexion ultime au sommet du mât d'éolienne, soit une défaillance due à la fatigue du matériau près du bas du mât d'éolienne. De plus, étant donné la nature aléatoire de l'état du vent, il est indispensable d'examiner ce problème d'un point de vue probabiliste. Dans ce travail, un cadre probabiliste d'analyse de la fatigue est développé et amélioré en utilisa
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7

De, Villiers Jonathan Izak. "Reducing the potential for accidents and the associated environmental impacts arising from road tankers transporting petro-chemical substances / J.I. de Villiers." Thesis, North-West University, 2003. http://hdl.handle.net/10394/293.

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Petroleum products, which are required to keep the 'wheels' of industry and commerce turning, are distributed from the various refineries to their destinations throughout the country on a daily basis and the mode and extent of transportation or conveyance of these products is varied. This distribution activity predominantly takes place by means of road tanker, pipeline as well as rail tanker and quantities during transit could vary from a few hundred litres to many thousands of litres per trip. Road tanker transportation is considered to be the most vulnerable form of distribution means and th
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8

Carney, William T. "Development of the damage control systems assist tool." Thesis, Monterey, California. Naval Postgraduate School, 1992. http://hdl.handle.net/10945/23867.

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9

White, John Gordon. "Control of rodent damage in Australian macadamia orchard systems." Thesis, Queensland University of Technology, 1999.

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10

Suh, Robert J. "Wireless content repurposing architecture for DC command and control." Thesis, Monterey, Calif. : Springfield, Va. : Naval Postgraduate School ; Available from National Technical Information Service, 2003. http://library.nps.navy.mil/uhtbin/hyperion-image/03sep%5FSuh.pdf.

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Thesis (M.S. in Systems Engineering)--Naval Postgraduate School, September 2003.<br>Thesis advisor(s): Gurminder Singh, Perry McDowell. Includes bibliographical references (p. 55-56). Also available online.
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11

Fagan, Gary T. "An experimental investigation into active damage control systems using positive position feedback for AVC." Thesis, Virginia Tech, 1993. http://hdl.handle.net/10919/42624.

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This work discusses the use of Positive Position Feedback (PPF) for Active Vibration Control as part of an Active Damage Control System (ADCS). Vibration control increases the fatigue life of a structure and decreases the in-plane stresses that can cause delamination in a composite. PPF is a collocated direct-output feedback control method that increases the effective damping in a structure. A simply-supported beam was used as the testbed which used strain gages as the sensing element and piezoelectric ceramics as the actuator.</p> <p> Initial investigations into sampled-data systems using PPF
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12

David, Sergio Z. "A Practical Approach for Formation Damage Control in Both Miscible and Immiscible CO2 Gas Flooding in Asphaltenic Crude Systems Using Water Slugs and Injection Parameters." Thesis, University of Louisiana at Lafayette, 2017. http://pqdtopen.proquest.com/#viewpdf?dispub=10196386.

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<p> CO<sub>2</sub> flooding has proven to be an effective technique for enhanced oil recovery. However, the application of CO<sub>2</sub> flooding in the recovery process of asphaltenic crude systems is often avoided, as high asphaltene precipitation rates may occur. While the effects of asphaltene concetration and CO<sub>2</sub> injection pressure on asphaltene precipitation rate have been the focus of many studies, asphaltene precipitation rate is not a reliable factor to predict the magnitude of asphaltene-induced formation damage. Wettability alteration is only caused by the immobile aspha
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13

Sommer, Andrew Patrick. "VIBRATION-BASED HEALTH MONITORING OF MULTIPLE-STAGE GEAR TRAIN AND DIFFERENTIAL PLANETARY TRANSMISSION INVOLVING TEETH DAMAGE AND BACKLASH NONLINEARITY." DigitalCommons@CalPoly, 2011. https://digitalcommons.calpoly.edu/theses/631.

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The objective of this thesis is to develop vibration-based fault detection strategies for on-line condition monitoring of gear transmission systems. The study divides the thesis into three sections. First of all, the local stresses created by a root fatigue crack on a pinion spur gear are analyzed using a quasi-static finite element model and non-linear contact mechanics simulation. Backlash between gear teeth which is essential to provide better lubrication on tooth surfaces and to eliminate interference is included as a defect and a necessary part of transmission design. The second section i
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14

Kharrat, Mohamed. "Design and development of a torsional guided-waves inspection system for the detection and sizing of defects in pipes." Thesis, Ecully, Ecole centrale de Lyon, 2012. http://www.theses.fr/2012ECDL0016/document.

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Plusieurs industries manipulent des substances liquides et gazeuses qui circulent souvent dans de longues canalisations. La technique d'ondes guidées est couramment utilisée dans ce domaine. Cette technique est en progrès continu. Dans cette thèse, un système d'inspection a été conçu et développé. Il est basé sur des transducteurs piézoélectriques qui génèrent des ondes guidées de torsion pouvant se propager le long du tube testé. Les signaux réfléchis des défauts et singularités rencontrés sont détectés aussi par des capteurs piézoélectriques. Des simulations numériques utilisantpar la méthod
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15

Gucik-Derigny, David. "CONTRIBUTION AU PRONOSTIC DES SYSTÈMES NON LINÉAIRES À BASE DE MODÈLES : THÉORIE ET APPLICATION." Thesis, Aix-Marseille 3, 2011. http://www.theses.fr/2011AIX30032.

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Cette thèse est une contribution au problème du pronostic des systèmes complexes. Plus précisément, elle concerne l'approche basée modèles et est composée de trois contributions principales. Tout d'abord, dans une première contribution une définition du concept de pronostic est proposée et est positionnée par rapport aux concepts de diagnostic et de diagnostic prédictif. Pour cela, une notion de contrainte temporelle a été introduite afin de donner toute pertinence à la prédiction réalisée. Il a également été montré comment le pronostic est lié à la notion d'accessibilité en temps fini.La deux
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16

Amba, Tushar. "Genetic Algorithm Based Damage Control For Shipboard Power Systems." 2009. http://hdl.handle.net/1969.1/ETD-TAMU-2009-05-282.

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The work presented in this thesis was concerned with the implementation of a damage control method for U.S. Navy shipboard power systems (SPS). In recent years, the Navy has been seeking an automated damage control and power system management approach for future reconfigurable shipboard power systems. The methodology should be capable of representing the dynamic performance (differential algebraic description), the steady state performance (algebraic description), and the system reconfiguration routines (discrete events) in one comprehensive tool. The damage control approach should also be abl
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17

Hitachi, Yoshitsugu. "Damage-tolerant Control System Design for Propulsion-controlled Aircraft." Thesis, 2009. http://hdl.handle.net/1807/18342.

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This thesis presents a damage-tolerant flight control system design for propulsion-controlled aircraft (PCA). PCA refers to an emergency piloting strategy that flight crews use throttle modulation only to achieve the attitude control of aircraft in case of conventional flight control system failures. PCA also refers to a conceptual or experimental aircraft that is installed with such automated thrust-only control system. When an aircraft undergoes structural damage to its airframe, lifting or control surfaces which cause conventional control system failures, PCA is adopted as an alternative co
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18

Mabood, Fazal. "Evaluating Tire Pressure Control System to Improve Productivity and Mitigate Pavement Damage." Thesis, 2008. http://hdl.handle.net/10012/3978.

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The introduction of the use of Tire Pressure Control Systems (TPCS) to improve the productivity of the Canadian trucking industry is gaining momentum. The imposition of seasonal load restrictions (SLR) on the thaw-weakened secondary roads interrupts the transportation of raw materials to processing facilities For the forestry industry in particular, this has very significant impacts on productivity and costs. FPInnovations-Feric Division (Feric) has investigated the potential for TPCS-equipped trucks to travel with full, legal loading during the SLR period without accelerating road wear and te
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19

Weingart, Stephen G. "Development of a shipboard damage control Fire Team Leader Intelligent Computer Aided Instructional tutoring system." Thesis, 1986. http://hdl.handle.net/10945/21789.

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20

Gogel, Bernard G. "An expert system to provide guidance on the operation of installed damage control systems aboard Naval ships in emergency situations." Thesis, 1986. http://hdl.handle.net/10945/21852.

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21

LIN, HSIAO-JU, and 林筱茹. "A Game Theoretical Analysis of The Impact of Damage Apportionment on Internal Control System and Audit Effort." Thesis, 2019. http://ndltd.ncl.edu.tw/handle/a7xab4.

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碩士<br>國立臺北大學<br>會計學系<br>107<br>This paper extends Pae and Yoo (2001) 's model, studying the impact of damage apportionment on internal control system quality and audit effort by a game-theoretic model. This paper adds the regulations of Article 20-1 of Taiwan Securities Exchange Act into our model, and assumes firm’s owner and auditor as reparation obligors. That is, when misrepresentation statement results in the investors losses, both the owner and the auditor will be the main people who responsible for the losses. This study’s main conclusions are: Since both the audit effort provided by ex
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22

Huang, Chaojun. "Structural Health Monitoring System for Deepwater Risers with Vortex-Induced Vibration: Nonlinear Modeling, Blind Identification, Fatigue/Damage Estimation and Vibration Control." Thesis, 2013. http://hdl.handle.net/1911/71968.

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This study focuses on developing structural health monitoring techniques to detect damage in deepwater risers subjected to vortex-induced vibration (VIV), and studying vibration control strategies to extend the service life of offshore structures. Vibration-based damage detection needs both responses from the undamaged and damaged deepwater risers. Because no experimental data for damaged deepwater risers is available, a model to predict the VIV responses of deepwater risers with given conditions is needed, which is the forward problem. In this study, a new three dimensional (3D) analytical m
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23

Dutta, Rajdeep. "Evolutionary Optimization For Vibration Analysis And Control." Thesis, 2012. https://etd.iisc.ac.in/handle/2005/2281.

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Problems in the control and identification of structural dynamic systems can lead to multimodal optimization problems, which are difficult to solve using classical gradient based methods. In this work, optimization problems pertaining to the vibration control of smart structures and the exploration of isospectral systems are addressed. Isospectral vibrating systems have identical natural frequencies, and existence of the isospectral systems proves non-uniqueness in system identification. For the smart structure problem, the optimal location(s) of collocated actuator(s)/sensor(s) and the optima
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24

Dutta, Rajdeep. "Evolutionary Optimization For Vibration Analysis And Control." Thesis, 2012. http://etd.iisc.ernet.in/handle/2005/2281.

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Problems in the control and identification of structural dynamic systems can lead to multimodal optimization problems, which are difficult to solve using classical gradient based methods. In this work, optimization problems pertaining to the vibration control of smart structures and the exploration of isospectral systems are addressed. Isospectral vibrating systems have identical natural frequencies, and existence of the isospectral systems proves non-uniqueness in system identification. For the smart structure problem, the optimal location(s) of collocated actuator(s)/sensor(s) and the optima
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25

(9293561), Rih-Teng Wu. "Development and Application of Big Data Analytics and Artificial Intelligence for Structural Health Monitoring and Metamaterial Design." Thesis, 2020.

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<p>Recent advances in sensor technologies and data acquisition platforms have led to the era of Big Data. The rapid growth of artificial intelligence (AI), computing power and machine learning (ML) algorithms allow Big Data to be processed within affordable time constraints. This opens abundant opportunities to develop novel and efficient approaches to enhance the sustainability and resilience of Smart Cities. This work, by starting with a review of the state-of-the-art data fusion and ML techniques, focuses on the development of advanced solutions to structural health monitoring (SHM) and met
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26

Belzile, Jean-Philippe. "Manipulation of the ubiquitin-proteasome system by HIV-1 : role of the accessory protein Vpr." Thèse, 2010. http://hdl.handle.net/1866/4135.

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Le virus de l’immunodéficience humaine de type 1 (VIH-1), l’agent étiologique du SIDA, est un rétrovirus complexe arborant plusieurs protéines accessoires : Nef, Vif, Vpr, et Vpu. Celles-ci sont impliquées dans la modulation de la réplication virale, dans l’évasion immunitaire et dans la progression de la pathogenèse du SIDA. Dans ce contexte, il a été démontré que la protéine virale R (Vpr) induit un arrêt de cycle cellulaire en phase G2. Le mécanisme par lequel Vpr exerce cette fonction est l’activation, ATR (Ataxia telangiectasia and Rad3 related)-dépendante, du point de contrôle de dommage
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