Establishing Availability Requirements Using Characteristics Factors and Expert Opinion

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System design engineers must translate permitted overall facility downtime into detailed design and operating specifications for numerous systems and subsystems that make up the facility. The process of assigning reliability and maintainability requirements to individual equipment systems to attain a desired overall availability is known as availability apportionment. Apportionment is normally required early in conceptual design when little or no hardware information is available. Apportionment, when coupled with availability prediction, enables the selection of viable alternative configurations, identifies problem areas, and provides redirection of the program into more productive areas as necessary. A method for apportioning, or budgeting, overall facility ... continued below

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Haire, M.J. & Schryver, J.C. June 18, 2000.

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System design engineers must translate permitted overall facility downtime into detailed design and operating specifications for numerous systems and subsystems that make up the facility. The process of assigning reliability and maintainability requirements to individual equipment systems to attain a desired overall availability is known as availability apportionment. Apportionment is normally required early in conceptual design when little or no hardware information is available. Apportionment, when coupled with availability prediction, enables the selection of viable alternative configurations, identifies problem areas, and provides redirection of the program into more productive areas as necessary. A method for apportioning, or budgeting, overall facility availability requirements among systems and subsystems is presented. An example of applying this methodology to the Spallation Neutron Source (SNS) facility is given.

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INIS; OSTI as DE00755662

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  • American Nuclear Society 2000 Annual Meeting, San Diego, CA (US), 06/18/2000--06/22/2000

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  • Report No.: ORNL/CP-106497
  • Grant Number: AC05-00OR22725
  • Office of Scientific & Technical Information Report Number: 755662
  • Archival Resource Key: ark:/67531/metadc706081

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  • June 18, 2000

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  • Sept. 12, 2015, 6:31 a.m.

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  • April 8, 2016, 7:14 p.m.

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Haire, M.J. & Schryver, J.C. Establishing Availability Requirements Using Characteristics Factors and Expert Opinion, article, June 18, 2000; (digital.library.unt.edu/ark:/67531/metadc706081/: accessed August 22, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.