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<article article-type="research-article" dtd-version="1.3" xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xml:lang="ru"><front><journal-meta><journal-id journal-id-type="publisher-id">sustain</journal-id><journal-title-group><journal-title xml:lang="ru">Надежность</journal-title><trans-title-group xml:lang="en"><trans-title>Dependability</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">1729-2646</issn><issn pub-type="epub">2500-3909</issn><publisher><publisher-name>RAMS Journal Limited liability company</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.21683/1729-2646-2014-0-1-99-128</article-id><article-id custom-type="elpub" pub-id-type="custom">sustain-50</article-id><article-categories><subj-group subj-group-type="heading"><subject>Research Article</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="ru"><subject>ФУНКЦИОНАЛЬНАЯ БЕЗОПАСНОСТЬ. ТЕОРИЯ И ПРАКТИКА</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>FUNCTIONAL SAFETY. THE THEORY AND PRACTICE</subject></subj-group></article-categories><title-group><article-title>МАТЕМАТИЧЕСКАЯ МОДЕЛЬ НАДЕЖНОСТИ КОМПЛЕКСА «ОБЪЕКТ ЗАЩИТЫ - СИСТЕМА БЕЗОПАСНОСТИ» ПРИ НЕЧЕТКОЙ ИСХОДНОЙ ИНФОРМАЦИИ</article-title><trans-title-group xml:lang="en"><trans-title>MATHEMATICAL MODEL OF DEPENDABILITY FOR A COMPLEX “FACILITY OF PROTECTION – SAFETY SYSTEM” IN CASE OF FUZZY INITIAL INFORMATION</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Перегуда</surname><given-names>А. И.</given-names></name><name name-style="western" xml:lang="en"><surname>Pereguda</surname><given-names>A. I.</given-names></name></name-alternatives><bio xml:lang="ru"><p>доктор технических наук, профессор</p></bio><bio xml:lang="en"><p>Professor, Doctor of Technical Sciences</p></bio><email xlink:type="simple">Pereguda@iate.Obninck.ru</email><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Обнинский институт атомной энергетики – филиал федерального государственного автономного образовательного учреждения высшего профессионального образования «Национальный исследовательский ядерный университет «МИФИ»</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Obninsk Institute of Atomic Energy, National Research Nuclear University MIFI</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2014</year></pub-date><pub-date pub-type="epub"><day>06</day><month>07</month><year>2016</year></pub-date><volume>0</volume><issue>1</issue><fpage>99</fpage><lpage>128</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Перегуда А.И., 2016</copyright-statement><copyright-year>2016</copyright-year><copyright-holder xml:lang="ru">Перегуда А.И.</copyright-holder><copyright-holder xml:lang="en">Pereguda A.I.</copyright-holder><license xml:lang="ru" license-type="creative-commons-attribution" xlink:href="https://creativecommons.org/licenses/by/4.0/" xlink:type="simple"><license-p>Данная работа распространяется под лицензией Creative Commons Attribution 4.0.</license-p></license><license xml:lang="en" license-type="creative-commons-attribution" xlink:href="https://creativecommons.org/licenses/by/4.0/" xlink:type="simple"><license-p>This work is licensed under a Creative Commons Attribution 4.0 License.</license-p></license></permissions><self-uri xlink:href="https://www.dependability.ru/jour/article/view/50">https://www.dependability.ru/jour/article/view/50</self-uri><abstract><p>В данной работе рассматривается математическая модель надежности комплекса “объект защиты - система безопасности” с периодически контролируемой системой безопасности. При построении математической модели надежности, учитывающей неопределенность параметров модели, используется случайно-нечеткий процесс восстановления. Получена нечеткая оценка для математического ожидания наработки комплекса, а также приведен пример вычисления оценки средней наработки до аварии комплекса «объект защиты - система безопасности».</p></abstract><trans-abstract xml:lang="en"><p>The given paper considers the mathematical model of dependability for a complex “facility of protection – safety system” with a periodically controlled safety system. A random fuzzy process of recovery is used for construction of a dependability mathematical model, which takes into account the uncertainty of model parameters. A fuzzy estimation has been obtained for the mathematical expectation of a complex’s failurefree operating life, and the calculation of mean time to failure of a complex “facility of protection – safety system” has been exemplified.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>надежность</kwd><kwd>случайно-нечеткие величины</kwd><kwd>принцип расширения Заде</kwd><kwd>функция принадлежности</kwd><kwd>нечеткая средняя наработка</kwd><kwd>оценка характеристик надежности</kwd><kwd>дефаззификация</kwd></kwd-group><kwd-group xml:lang="en"><kwd>dependability</kwd><kwd>random fuzzy variables</kwd><kwd>Zadeh’s extension principle</kwd><kwd>membership function</kwd><kwd>fuzzy mean time</kwd><kwd>estimation of dependability performance</kwd><kwd>defuzzification</kwd></kwd-group></article-meta></front><back><ref-list><title>References</title><ref id="cit1"><label>1</label><citation-alternatives><mixed-citation xml:lang="ru">Малашинин И.И., Перегуда А. И. 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