نتایج جستجو برای: Failure Mode Effect and Criticality Analysis (FMECA)
تعداد نتایج: 17632325 فیلتر نتایج به سال:
The paper is concerned with the study of criticality analysis of components of Gas Turbine Power Plant Systems (GTPPS) and the failures occurring in the plant. Failure mode and effect and criticality analysis (FMECA) is carried out to estimate the criticality number for different components and failure modes. In addition the failure effects, higher effects and end effects are incorporated in th...
The metro door system is one of the high failure rate subsystems of metro trains. The Failure Mode, Effects and Criticality Analysis (FMECA) method is applied to analyze the reliability of metro door system in this paper. Firstly, failure components of the door are statistically analyzed, and the major failure components are determined. Secondly, failures are classified according to their impac...
in industries, preventive maintenance (pm) is not a new practice to minimise the sudden breakdown of production machine. pm will be performed at predetermine intervals to provide a balance between failure cost and component utilisation (aging). however, most of pm interval is based on experience or original equipment manufacturer (oem) recommendations. consequently, the benefits from pm are not...
To conduct a risk analysis of the negative pressure wound therapy (NPWT) care process and to improve the safety of NPWT, a working group of nurses, hospital pharmacists, physicians and hospital managers performed a risk analysis for the process of NPWT care. The failure modes, effects and criticality analysis (FMECA) method was used for this analysis. Failure modes and their consequences were d...
The Failure Mode and Effect Analysis (FMEA) is often used to improve a system’s reliability. This paper proposes new approach that aims overcome the most critical defects of traditional FMEA. methodology combines Entropy Best Worst Method (BWM) with EDAS System Dynamics, FMECA: EN-B-ED Dynamic FMECA. main innovation point proposed work presence an unknown factor (Cost) allows obtain objective w...
Background and aims : Technique of Failure Modes Effects and Criticality Analysis, FMECA, is a method for identifying and analyzing all potential failure modes of a system.This technique is used to prevent failures and to reduce their effects on the system . The main goal of this study was identifying and analyzing of the potential failure modes and assessing the effects of failures in the ce...
fmea اختصار عبارت failure mode and effect analysis بوده و روشی فنی و مهندسی سیستماتیک برای شناسایی و پیشگیری از وقوع خطاها و ریسکهای بالقوه و بالفعل در سیستمها طراحی محصول و فرآیندهای تولید محصول و ارائه خدمات می باشد. تجزیه و تحلیل عوامل شکست در فرآیندهای تولید pfmea یکی از انواع fmea بوده و معمولا با انجام یافتن چند مرحله شامل بررسی شرایط محیطی ، نیروی انسانی ، روشهای انجام کا...
This study introduces the fuzzy theory approach as an enhancement to traditional failure mode, effect, and criticality analysis (FMECA) method in order address its limitations, which primarily stem from subjectivity a lack of quantitative analysis. The proposed method, referred FMECA improvement based on comprehensive evaluation, aims quantify qualitative aspect provides detailed outline proced...
The paper presents a reliability assessment of a widely used protection system of large power squirrel cage induction motors. In conjunction with published field induction motors Failure data this assessment effort is based on a integrated predictive analysis using three methods: (1) a Fault Tree Analysis (FTA) that allows to identify and then quantify the initiating failure cause weighting fac...
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