Spelling suggestions: "subject:"eliability (engineering)"" "subject:"deliability (engineering)""
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Diagnostic analysis for mechanical systemsHenning, Scott A. 21 January 2000 (has links)
An analysis and modeling method of the diagnostic characteristics of a mechanical or electromechanical system is presented. Diagnosability analysis is especially relevant given the complexities and functional interdependencies of modern-day systems, since improvements in diagnosability can lead to a reduction of a system's life-cycle costs. The diagnosis process of a mechanical system, involving an observation phase and a testing phase, is described, as well as how failure types (the way particular system failure modes occur) impact the diagnostic process. Failure and diagnostic analysis leads to system diagnosability modeling with the Failure Modes and Effects Analysis (FMEA) and component-indication relationship analysis. Finally, methods are developed for translating the diagnosability model into mathematical methods for computing metrics such as distinguishabilty, testability, and Mean Time Between Unscheduled Removals (MTBUR). These methods involve the use of matrices to represent the failure and replacement characteristics of the system. Diagnosability metrics are extracted by matrix multiplication. These metrics are useful when comparing the diagnosability of proposed designs or predicting the life-cycle costs of fault isolation. / Graduation date: 2000
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Reliability centered prediction technique for diagnostic modeling and improvementMurphy, Michael D., 1965- 14 November 1995 (has links)
Design phase decisions based on diagnosability lead to lower system costs and, in turn, higher quality products by means of reducing maintenance time and increasing system reliability. A case for diagnosability is presented. Functions of diagnosability are expounded upon including life cycle costs, statistical analysis, and design criterion to emphasize the necessity of diagnosability analysis early in the design phase. A diagnosability prediction metric is developed for system modeling of component failure rates and unjustified removals. The metric emphasizes ambiguity of system component indications as well as system structure. The metric is evaluated using historical data from the bleed air control system (BACS) on the Boeing 737-300. Seven design changes are suggested based on improving system diagnosability by changing component functions, modifying indications, and adding or changing sensors. The resulting designs are compared via Boeing's life cycle cost mechanism, DEPCOST model, based on cost improvements. It is shown that system improvements based on this prediction technique will increase the quality of a product since increased diagnosability decreases life cycle costs. / Graduation date: 1996
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The reliability mandate : optimizing the use of highly reliable parts, materials, and processes (PM & P) to maximize system component reliability in the life cycle /Kruse, Darin E. January 2002 (has links) (PDF)
Thesis (M.S.)--Naval Postgraduate School, 2002. / Thesis advisor(s): Donald R. Eaton, Kenneth, H. Doerr. Includes bibliographical references (p. 67-69). Also available online.
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Establishment of models and data tracking for small UAV reliability /Dermentzoudis, Marinos. January 2004 (has links) (PDF)
Thesis (M.S. in Operations Research and M.S. in Systems Engineering)--Naval Postgraduate School, June 2004. / Thesis advisor(s): David Olwell. Includes bibliographical references (p. 217-224). Also available online.
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Zuverlässigkeit als Gestaltungsparameter betriebswirt-schaftlicher SystemeSchellmann, Wolfgang, January 1973 (has links)
Thesis--Marburg. / Vita. Includes bibliographical references (p. 127-144).
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SUBJECTIVE ESTIMATION OF VARIABILITYFike, Robert Lee, 1947- January 1977 (has links)
No description available.
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The possible consequences of employing the normal distribution as a model in designEckert, Sharen Kay, 1945- January 1970 (has links)
No description available.
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Design and plan for implementation of the reliability engineering and research centerCook, Robert Charles, 1933- January 1970 (has links)
No description available.
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Time dependent reliability of components subjected to simple fatigueSmith, Richard Edward, 1941- January 1965 (has links)
No description available.
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Optimum reliability and maintenance schedule of a centrifugal pumpMakhijani, Srichand Gobindram, 1939- January 1964 (has links)
No description available.
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