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   Reliability Analysis of Three Elements in Series and Parallel Systems Under Timevarying Fuzzy Failure Rate  
   
نویسنده El-Damcese M. ,Abbas F. ,El-Ghamry E.
منبع International Journal Of Engineering - 2014 - دوره : 27 - شماره : 4 - صفحه:553 -560
چکیده    Reliability is the most important performance issue in engineering design process but in the real world problems, there are limitations for using conventional reliability. fuzzy logic has proved to be effective in expressing uncertainties in different fields, including engineering reliability. in this paper, for both series and parallel systems composed of three identical or different elements, the reliability has been analyzed using the fuzzy concepts and some characteristics such as the mean time to failure have been evaluated, taking in our account that all the operating units have increasable time varying failure rates with fuzzy triangular membership functions. this paper includes a numerical example to illustrate the model and validate the analytical results.
کلیدواژه Mean Time To Failure; Parallel System; Reliability Analysis; Series System; Time-Varying Fuzzy Failure Rates
آدرس Department Of Mathematics (Section Of Statistics), Faculty Of Science, Tanta University, 31521, Egypt, Department Of Mathematics, Umm Al-Qura University, 2064, Saudi Arabia, Department Of Engineering Physics And Mathematics, Faculty Of Engineering, Tanta University, 31521, Egypt
 
     
   
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