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Dissertations / Theses on the topic 'Reliability of mechanical systems'

Author: Grafiati

Published: 16 November 2024

Last updated: 19 July 2025

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1

Stephenson, John Antony. "Design for reliability in mechanical systems." Thesis, University of Cambridge, 1996. https://www.repository.cam.ac.uk/handle/1810/251589.

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2

Zhao, Jian-Hua. "The reliability optimization of mechanical systems using metaheuristic approach." Mémoire, École de technologie supérieure, 2005. http://espace.etsmtl.ca/326/1/ZHAO_Jian%2DHua.pdf.

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Le problème d'optimisation de fiabilité des systèmes mécaniques est un problème compliqué avec contraintes multicritères, dont la solution optimale est en générale un compromis. Le travail présenté dans ce mémoire se concentre sur l'optimisation de fiabilité des systèmes mécaniques en séries parallèles. Basée sur le ACSRAP (Ant Colony System for Redundancy Apportionment Problem), une nouvelle approche est présentée. Cette approche combine les caractéristiques de l'ACS avec des recherches locales. Donc il optimise la fiabilité globale du système tout en satisfaisant les contraintes en terme de

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3

Campean, Ioan Felician. "Product reliability analysis and prediction : applications to mechanical systems." Thesis, Bucks New University, 1998. https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.714448.

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4

Pu, Jun. "Reliability and availability analysis of three-state device systems." Thesis, University of Ottawa (Canada), 1996. http://hdl.handle.net/10393/10384.

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This study presents the reliability and availability analysis of three-state device systems with common-cause failures. The effect of common-cause failures on different systems is discussed. Different configurations are compared in order to obtain higher standby system reliability. Mathematical expressions are developed for the system reliability, the mean time to failure, the steady state availability and the time dependent availability of cold standby system, warm standby system, series system and parallel system. For system with constant common-cause failure rates, the Markov State Space ap

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5

Anude, Okezie. "The analysis of redundant reliability systems with common-cause failures." Thesis, University of Ottawa (Canada), 1994. http://hdl.handle.net/10393/6847.

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The reliability and income analyses of newly developed $k-out-of-(n + m):G$ (or $n, m, k$) type redundant systems subject to a combination of common-cause failures and independent failures are presented. The global goal was to evaluate the impacts of the standby activation policy and the system repair times on such relevant system performance indices as the reliability, long-run availability, mean time to failure, variance of time to failure and net income. To facilitate this investigation several possible repair policies are developed. Results obtained using typical and practical values of ba

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6

Burnham, Michael Richard. "Three competing risk problems in the study of mechanical systems reliability." Thesis, University of Strathclyde, 2010. http://oleg.lib.strath.ac.uk:80/R/?func=dbin-jump-full&object_id=16853.

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This thesis considers three problems within the eld of competing risks modelling in reliability. The rst problem concerns the question of identi ability within certain subclasses of Doyen and Gaudoin's recently proposed generalised competing risks framework. Bedford and Lindqvist have shown identi ability for one such subclass - a two component series system in which, every time a component fails it is restored to a state "as good as new", while the other component is restored to a state "as bad as old". In this thesis two different subclasses are shown to be identifiable. The first is a gener

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7

Crk, Vladimir 1958. "Component and system reliability assessment from degradation data." Diss., The University of Arizona, 1998. http://hdl.handle.net/10150/282820.

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Reliability estimation of highly reliable components, subsystems and systems has become very difficult using the traditional accelerated life tests. Therefore, there is a need to develop new models that will determine the reliability of such components, systems or subsystems, one of which is modeling a long term performance degradation. The proposed method is more general than any of the existing ones. It can be applied to any system, subsystem or component whose degradation over time can be identified and measured. It is assumed that the performance degradation is caused by a number, d, of in

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8

Shao, Lun. "A Unified Surrogate Framework for Data-Driven Reliability Insights in Mechanical Systems." Electronic Thesis or Diss., Ecully, Ecole centrale de Lyon, 2025. http://www.theses.fr/2025ECDL0009.

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Les structures d'ingénierie modernes, des systèmes simples à un seul degré de liberté (SDOF) aux configurations complexes continues ou à plusieurs degrés de liberté (MDOF) et enfin aux systèmes continus, sont confrontées à des incertitudes dimensionnelles élevées en raison des charges variables, des propriétés des matériaux et des conditions environnementales. Les approches traditionnelles, telles que la simulation de Monte Carlo, peuvent devenir extrêmement coûteuses lors de la simulation d'un grand espace de paramètres ou de la modélisation d'un comportement structurel complexe. Dans ce trav

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9

Azarkhail, Mohammadreza. "Agent autonomy approach to physics-based reliability modeling of structures and mechanical systems." College Park, Md.: University of Maryland, 2007. http://hdl.handle.net/1903/7680.

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Thesis (Ph. D.) -- University of Maryland, College Park, 2007.<br>Thesis research directed by: Mechanical Engineering. Title from t.p. of PDF. Includes bibliographical references. Published by UMI Dissertation Services, Ann Arbor, Mich. Also available in paper.

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10

Wei, Frank L. (Frank Lili) 1977. "Effects of mechanical properties on the reliability of Cu/low-k metallization systems." Thesis, Massachusetts Institute of Technology, 2007. http://hdl.handle.net/1721.1/42026.

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Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Materials Science and Engineering, 2007.<br>This electronic version was submitted by the student author. The certified thesis is available in the Institute Archives and Special Collections.<br>Includes bibliographical references (leaves 211-217).<br>Cu and low-dielectric-constant (k) metallization schemes are critical for improved performance of integrated circuits. However, low elastic moduli, a characteristic of the low-k materials, lead to significant reliability degradation in Cu-interconnects. A thorough understanding of th

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11

Singh, Naveen Chandra Lall Pradeep. "Thermo-mechanical reliability models for life prediction of area array electronics in extreme environments." Auburn, Ala., 2006. http://repo.lib.auburn.edu/2006%20Spring/master's/SINGH_NAVEEN_54.pdf.

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12

Er, Kim Hua. "Analysis of the reliability disparity and reliability growth analysis of a combat system using AMSAA extended reliability growth models." Thesis, Monterey, California. Naval Postgraduate School, 2005. http://hdl.handle.net/10945/1788.

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The first part of this thesis aims to identify and analyze what aspects of the MIL-HDBK-217 prediction model are causing the large variation between prediction and field reliability. The key findings of the literature research suggest that the main reason for the inaccuracy in prediction is because of the constant failure rate assumption used in MIL-HDBK-217 is usually not applicable. Secondly, even if the constant failure rate assumption is applicable, the disparity may still exist in the presence of design and quality related problems in new systems. A possible solution is to apply relia

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13

Abou, Jaoudé Abdo. "Advanced Analytical Model for the Prognostic of Industrial Systems Subject to Fatigue." Phd thesis, Aix-Marseille Université, 2012. http://tel.archives-ouvertes.fr/tel-00874624.

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This thesis is dedicated to the prognostic evaluation of dynamic systems. The work presented here aims at developing an advanced tool to treat the prognostic evaluation in linear and nonlinear deterministic context in a first part as well as in the stochastic context in a second part. Our purpose is to prepare a general prognostic tool that can be capable of well predicting the RUL of a system based on an analytical damage accumulation law in either a deterministic or a stochastic context.

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14

Trille, Christophe. "Reliability analysis for subsea pipeline cathodic protection systems." Thesis, Cranfield University, 1996. http://dspace.lib.cranfield.ac.uk/handle/1826/12142.

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Subsea pipelines, as the main transportation means for oil and gas produced offshore, are a key element of the production system. Cathodic protection systems (CPS) are used in combination with surface coatings to protect the pipeline from external corrosion. Although cases of pipeline failure due to external corrosion remain rare, such failures can have catastrophic effects in terms of human lives, environment degradation and financial losses. The offshore industry was led to the use of risk analysis techniques subsequent to major disasters, such as Piper Alpha and Alexander Kjelland. These ac

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15

Becker, Kaitlyn P. (Kaitlyn Patricia). "Reliability of torque and temperature feedback for an autonomous glass monitoring system." Thesis, Massachusetts Institute of Technology, 2009. http://hdl.handle.net/1721.1/54197.

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Thesis (S.B.)--Massachusetts Institute of Technology, Dept. of Mechanical Engineering, 2009.<br>This electronic version was submitted by the student author. The certified thesis is available in the Institute Archives and Special Collections.<br>Cataloged from student submitted PDF version of thesis.<br>Includes bibliographical references (p. 30).<br>Automated pipe turners used in glassblowing studios are limited in their application by the duration a blown glass piece can be left unattended. An autonomous monitoring system can increase the usefulness of pipe turners in small studio and hobby

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16

Krishnan, Ganesh. "Thermo-mechanical reliability of ultra-thin low-loss system-on-package substrates." Thesis, Atlanta, Ga. : Georgia Institute of Technology, 2008. http://hdl.handle.net/1853/26474.

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Thesis (M. S.)--Materials Science and Engineering, Georgia Institute of Technology, 2009.<br>Committee Chair: Tummala, Rao; Committee Member: Pucha, Raghuram V.; Committee Member: Wong, C.P. Part of the SMARTech Electronic Thesis and Dissertation Collection.

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17

Warburton, Daren. "Development of a generic methodology for probabilistically predicting the reliability of offshore mechanical components at the design stage." Thesis, Cranfield University, 2000. http://dspace.lib.cranfield.ac.uk/handle/1826/11302.

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The continuously developing requirements of the offshore oil and gas Operators are placing more stringent demands on the designers to produce optimised solutions, with reduced development schedules, and application of new technologies for extreme environmental and operational conditions. The compounding uncertainty of service conditions and in the design capabilities is causing the designer to over-design, conduct extensive pre-service testing and introduce design redundancy. As such, designers have been forced to turn to reliability techniques in order to quantify the life of their designs. T

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18

Sundaramurthi, Ranjitprakash. "Human Reliability Modeling for Next Generation System Codes." The Ohio State University, 2011. http://rave.ohiolink.edu/etdc/view?acc_num=osu1324411548.

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19

Mitseas, Ioannis. "An efficient stochastic dynamics framework for response determination, reliability assessment, and performance-based design of nonlinear structural systems." Thesis, University of Liverpool, 2015. http://livrepository.liverpool.ac.uk/2010745/.

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An approximate analytical technique for determining the survival probability and first-passage probability density function (PDF) of nonlinear multi-degree-of-freedom (MDOF) structural systems subject to an evolutionary stochastic excitation vector is developed. The proposed technique can be construed as a two-stage approach. First, relying on statistical linearization and utilizing a dimension reduction approach the nonlinear n-degree-of-freedom system is decoupled and cast into (n) effective single-degree-of-freedom (SDOF) linear time-varying (LTV) oscillators corresponding to each and every

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20

Hawbaker, Benjamin F. (Benjamin Forrest). "Analyzing the effects of component reliability on naval Integrated Power System quality of service." Thesis, Massachusetts Institute of Technology, 2008. http://hdl.handle.net/1721.1/44844.

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Thesis (Nav. E.)--Massachusetts Institute of Technology, Dept. of Mechanical Engineering; and, (S.M.)--Massachusetts Institute of Technology, System Design and Management Program, 2008.<br>Includes bibliographical references (leaves 66-68).<br>The Integrated Power System (IPS) is a key enabling technology for future naval vessels and their advanced weapon systems. While conventional warship designs utilize separate power systems for propulsion and shipboard electrical service, the IPS combines these functions. This allows greater optimization of engineering plant design and operations and lead

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21

O'Connor, Andrew N. "A general cause based methodology for analysis of dependent failures in system risk and reliability assessments." Thesis, University of Maryland, College Park, 2013. http://pqdtopen.proquest.com/#viewpdf?dispub=3587283.

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<p> Traditional parametric Common Cause Failure (CCF) models quantify the soft dependencies between component failures through the use of empirical ratio relationships. Furthermore CCF modeling has been essentially restricted to identical components in redundant formations. While this has been advantageous in allowing the prediction of system reliability with little or no data, it has been prohibitive in other applications such as modeling the characteristics of a system design or including the characteristics of failure when assessing the risk significance of a failure or degraded performance

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22

Trayhorn, Benjamin. "Power plant system reliability analysis : applications to insurance risk selection and pricing." Thesis, Cranfield University, 2012. http://dspace.lib.cranfield.ac.uk/handle/1826/7906.

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Within the Speciality Engineering Insurance Field the use of engineering opinion is the main component in risk analysis for underwriting decision making. The use of risk analysis tools to quantify the risk associated with perils such as mechanical breakdown is limited. A reliability model for the risk analysis of mechanical breakdown risk for the power generation sector, PowerRAT, has been developed and its performance evaluated against historic claim data. It has proven to closely forecast actual losses over a portfolio of power plants, and differentiate between power plant type; conventional

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23

Azad, Saeed. "Combined Design and Control Optimization of Stochastic Dynamic Systems." University of Cincinnati / OhioLINK, 2020. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1602153122063302.

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24

Basudhar, Anirban. "Computational Optimal Design and Uncertainty Quantification of Complex Systems Using Explicit Decision Boundaries." Diss., The University of Arizona, 2011. http://hdl.handle.net/10150/201491.

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This dissertation presents a sampling-based method that can be used for uncertainty quantification and deterministic or probabilistic optimization. The objective is to simultaneously address several difficulties faced by classical techniques based on response values and their gradients. In particular, this research addresses issues with discontinuous and binary (pass or fail) responses, and multiple failure modes. All methods in this research are developed with the aim of addressing problems that have limited data due to high cost of computation or experiment, e.g. vehicle crashworthiness, flu

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25

Ren, Xuchun. "Novel computational methods for stochastic design optimization of high-dimensional complex systems." Diss., University of Iowa, 2015. https://ir.uiowa.edu/etd/1738.

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The primary objective of this study is to develop new computational methods for robust design optimization (RDO) and reliability-based design optimization (RBDO) of high-dimensional, complex engineering systems. Four major research directions, all anchored in polynomial dimensional decomposition (PDD), have been defined to meet the objective. They involve: (1) development of new sensitivity analysis methods for RDO and RBDO; (2) development of novel optimization methods for solving RDO problems; (3) development of novel optimization methods for solving RBDO problems; and (4) development of a n

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26

Simon, Derek. "Static Balancing of the Cal Poly Wind Turbine Rotor." DigitalCommons@CalPoly, 2012. https://digitalcommons.calpoly.edu/theses/837.

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The balancing of a wind turbine rotor is a crucial step affecting the machine’s performance, reliability, and safety, as it directly impacts the dynamic loads on the entire structure. A rotor can be balanced either statically or dynamically. A method of rotor balancing was developed that achieves both the simplicity of static balancing and the accuracy of dynamic balancing. This method is best suited, but not limited, to hollow composite blades of any size. The method starts by quantifying the mass and center of gravity of each blade. A dynamic calculation is performed to determine the theoret

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27

Vasiliauskas, Gediminas. "Girdimosios informacijos kokybės triukšmingoje aplinkoje tyrimai." Master's thesis, Lithuanian Academic Libraries Network (LABT), 2009. http://vddb.library.lt/obj/LT-eLABa-0001:E.02~2008~D_20090114_155102-81586.

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Darbo apimtis 69 puslapiai, 14 lentelių, 26 paveikslai, panaudotas 31 literatūros šaltinis, 4 priedai. Darbo tikslas yra ištirti sistemos „žmogus-mašina-aplinka“ elementų informacinį patikimumą ir išsiaiškinti garsinių signalų sklidimo triukšminga aplinka trukdžius bei įvertinti garsinės informacijos tokioje aplinkoje, kokybę. Darbe nagrinėjamas sistemos „žmogus-mašina-aplinka“ informacinis patikimumas ir jo neatitiktys situacijai, sukeliančios nepaprastuosius įvykius. Literatūros apžvalgoje didelis dėmesys skiriamas girdimosios informacijos kokybės pokyčių analizei esant triukšmui, aptariama

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28

Gupta, Jatin. "Application of Hazard and Operability (HAZOP) Methodology to Safety-Related Scientific Software." The Ohio State University, 2014. http://rave.ohiolink.edu/etdc/view?acc_num=osu1398983873.

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29

Vromans, Michiel Johannes Cornelius Maria. "Reliability of railway systems." [Rotterdam]: Erasmus Research Institute of Management (ERIM), Erasmus University Rotterdam ; Rotterdam : Erasmus University Rotterdam [Host], 2005. http://hdl.handle.net/1765/6773.

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30

Tarokh, M. J. "Systems reliability performance modelling." Thesis, University of Bradford, 1993. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.715427.

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31

Hoang, Lan H. (Lan Hoang). "Improving mechanical reliability of integrated circuits." Thesis, Massachusetts Institute of Technology, 1996. http://hdl.handle.net/1721.1/41344.

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32

Yang, Wen-Huei. "Approximate interval estimates for mechanical reliability." Thesis, Monterey, California : Naval Postgraduate School, 1990. http://handle.dtic.mil/100.2/ADA241071.

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Thesis (M.S. in Operations Research)--Naval Postgraduate School, September 1990.<br>Thesis Advisor(s): Woods, W.M. Second Reader: Bailey, Michael. "September 1990." Description based on title screen as viewed on December 15, 2009. DTIC Identifier(s): Intervals, Estimates, Parametric Analysis. Author(s) subject terms: Reliability, Confidence Limit, Parametric, Normal, Unknown Means and Variances. Includes bibliographical references (p. 53-54). Also available in print.

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33

Lewin, Susanne. "Mechanical Reliability of Aged Lead-Free Solders." Thesis, KTH, Materialvetenskap, 2012. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-98372.

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The usage of lead-free solder joints in electronic packaging is of greatest concern to the electronic industry due to the health and environmental hazards arising with the use of lead. As a consequence, lead is legally prohibited in the European Union and the industry is aiming to produce lead-free products. The reliability of solder joints is an important issue as the failure could destroy the whole function of a product. SnAgCu is a commonly used alloy for lead-free solders. Compared to solders containing lead, tin-rich solders react more rapidly with the copper substrate. The

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34

Cairns, Darran. "The mechanical reliability of silica optical fibres." Thesis, University of Birmingham, 1998. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.395341.

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35

Adsul, Raveena Dnyaneshwar. "Reliability Assessment of Electro-mechanical Linear Actuator." Thesis, KTH, Skolan för industriell teknik och management (ITM), 2021. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-301632.

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Syftet med denna avhandling var att uppskatta livslängden och tillförlitligheten för det elektromekaniska linjära ställdonet genom att använda metoder för sannolikhet och statistik, med fokus på att fastställa svagare områden som kan förbättras för att inkludera dessa förbättringar i kommande generation. Bedömningen gjordes kvantitativt och kvalitativt. FMEA valdes för den kvalitativa analysen. För den kvantitativa analysen bedömdes Weibull-distribution vara den mest lämpliga för att skatta komponenternas felfrekvens. För detta valdes form- och skalparametrar enligt B. Bertsche. [1] Övergripan

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36

LEE, SEUNG JOO. "RELIABILITY-BASED OPTIMAL STRUCTURAL AND MECHANICAL DESIGN." Diss., The University of Arizona, 1987. http://hdl.handle.net/10150/184136.

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Structural reliability technology provides analytical tools for management of uncertainty in all relevant design factors in structural and mechanical systems. Generally, the goal of analysis is to compute probabilities of failure in structural components or system having single or multiple failure mode. Alternately, modern optimization methods provide efficient numerical algorithms for locating optima, particularly in large-scale systems having prescribed deterministic constraints. Optimization procedure can accommodate random variables either directly in its objective function or as one of th

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37

Mwanga, Alifas Yeko. "Reliability modelling of complex systems." Thesis, Pretoria : [s.n.], 2006. http://upetd.up.ac.za/thesis/available/etd-12142006-121528.

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38

Lenz, Malte, and Johan Rhodin. "Reliability calculations for complex systems." Thesis, Linköpings universitet, Reglerteknik, 2011. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-69952.

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Functionality for efficient computation of properties of system lifetimes was developed, based on the Mathematica framework. The model of these systems consists of a system structure and the components independent lifetime distributions. The components are assumed to be non-repairable. In this work a very general implementation was created, allowing a large number of lifetime distributions from Mathematica for all the component distributions. All system structures with a monotone increasing structure function can be used. Special effort has been made to compute fast results when using the expo

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Cui, L. "Reliability analysis of repairable systems." Thesis, Swansea University, 1994. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.636331.

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In this thesis five repairable systems are considered for which the formulations of steady-state availability and downtime distribution are presented. The components in the reliability configurations, standby, series systems and <i>R</i>-out-of-<i>N</i> systems, are assumed identical. A finite number of spares, <i>M</i>, is available to install into the system to replace failed items and repair action returns the failed items to a good-as-new state. There is only one server who has to undertake both replacement and repair, the replacement action has priority over repair action. Throughout this

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40

Toutounjee, Mohamad Mazhar. "The reliability of memory systems." Thesis, Imperial College London, 1988. http://hdl.handle.net/10044/1/47278.

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Terrier, Viktor. "North European Power Systems Reliability." Thesis, KTH, Elkraftteknik, 2017. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-202581.

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The North European power system (Sweden, Finland, Norway, Denmark, Estonia, Latvia and Lithuania) is facing changes in its electricity production. The increasing share of intermittent power sources, such as wind power, makes the production less predictable. The decommissioning of large plants, for environmental or market reasons, leads to a decrease of production capacity while the demand can increase, which is detrimental to the power system reliability. Investments in interconnections and new power plants can be made to strengthen the system. Evaluating the reliability becomes essential to d

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42

Lau, Siu Lik. "Reliability of optical crossconnect systems /." View abstract or full-text, 2004. http://library.ust.hk/cgi/db/thesis.pl?ELEC%202004%20LAUS.

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Thesis (M. Phil.)--Hong Kong University of Science and Technology, 2004.<br>Includes bibliographical references (leaves 73-76). Also available in electronic version. Access restricted to campus users.

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La, Band Rachel A. "Systems reliability for phased missions." Thesis, Loughborough University, 2005. https://dspace.lboro.ac.uk/2134/34438.

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The concept of a phased mission has been introduced as a sequential set of objectives that operate over different time intervals. During each phase of the mission, the system may alter such that the logic model, system configuration, or system failure characteristics may change to accomplish a required objective. A new fault tree method has been proposed to enable the probability of failure in each phase to be determined in addition to the whole mission unreliability. Phase changes are assumed to be instantaneous, and component failure rates are assumed to be constant through the mission. For

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44

Iacopino, G. "Reliability analysis of mechanical components containing random flaws." Thesis, Cranfield University, 2006. http://dspace.lib.cranfield.ac.uk/handle/1826/1787.

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The goal of structural reliability is to assure that a structure adequately performs its intended function when operating under specified environmental conditions. The major source of unreliability is the variability that characterizes engineering structures subjected to inherent randomness in material properties, loading and geometrical parameters. A sensible approach to structural reliability must be able to evaluate and control the effects of this variability, quantifying the uncertainties in the design variables and measuring their impact on the strength of the final product. The objective

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Touzé, Patrick A. "Applications of fuzzy logic to mechanical reliability analysis." Thesis, Virginia Tech, 1993. http://hdl.handle.net/10919/41583.

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Touz'e, Patrick A. "Applications of fuzzy logic to mechanical reliability analysis /." This resource online, 1993. http://scholar.lib.vt.edu/theses/available/etd-03142009-040345/.

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47

Jenab, Kouroush. "Stochastic and fuzzy analyses in reliability design." Thesis, University of Ottawa (Canada), 2005. http://hdl.handle.net/10393/29222.

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The risk analysis process involving information acquisition, modeling, analysis, and decision steps results in the product design improvement. To perform product risk assessment, this study addresses stochastic and fuzzy analyses in reliability design. Using decision-making techniques and the flow-graph concept, the main objective of this study is to develop analytical models with time varying input data, and/or fuzzy input data for reliability techniques. The models (i.e., Graph-based failure effects analysis, Group-based failure effects analysis, Imprecise-chance Markov chains, Fuzzy and sto

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48

Pennisi, Frank Joseph. "Design of a high reliability transport mechanism." Thesis, Massachusetts Institute of Technology, 1994. http://hdl.handle.net/1721.1/35982.

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49

Torng, Tony Yi. "Reliability analysis of maintained structural system vulnerable to fatigue and fracture." Diss., The University of Arizona, 1989. http://hdl.handle.net/10150/184955.

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Metallic structures dominated by tensile loads are vulnerable to fatigue and fracture. Fatigue is produced by oscillatory loads. Quasi-static brittle or ductile fracture can result from a "large" load in the random sequence. Moreover, a fatigue or fracture failure in a member of a redundant structure produces impulsive redistributed loads to the intact members. These transient loads could produce a sequence of failures resulting in progressive collapse of the system. Fatigue and fracture design factors are subject to considerable uncertainty. Therefore, a probabilistic approach, which includes

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Mathiesen, Eric Martinus. "Component reliability database for weapons systems." Thesis, Monterey, Calif. : Springfield, Va. : Naval Postgraduate School ; Available from National Technical Information Service, 1994. http://handle.dtic.mil/100.2/ADA280485.

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