نتایج جستجو برای: failure mode effect and criticality analysis fmeca

تعداد نتایج: 17632325  

2013
You-Peng Zhang Zheng-Jie Xu Hong-Sheng Su

Risk assessment is becoming increasingly important for railway signal system in order to safeguard their passengers and employees while improving safety and reducing maintenance costs. However, the application of risk assessment methods in railway signal system may not give satisfactory results because the risk data are incomplete or there is a high level of uncertainty involved in the risk dat...

Journal: :Fusion Engineering and Design 2021

ITER is a tokamak nuclear fusion reactor intended to demonstrate the feasibility of as carbon-free energy source. In order control potential technical risks, subsystems are assessed through Reliability, Availability, Maintainability and Inspectability (RAMI) analysis, which includes Failure Modes Effects Criticality Analysis (FMECA). This paper deals with FMECA front-end components Collective T...

Journal: :Annali di igiene : medicina preventiva e di comunita 2016
A Serafini G Troiano E Franceschini P Calzoni N Nante C Scapellato

BACKGROUND Risk management is a set of actions to recognize or identify risks, errors and their consequences and to take the steps to counter it. The aim of our study was to apply FMECA (Failure Mode, Effects and Criticality Analysis) to the Activated Protein C resistance (APCR) test in order to detect and avoid mistakes in this process. METHODS We created a team and the process was divided i...

Journal: :Wireless Communications and Mobile Computing 2022

Failure mode effects and criticality analysis (FMECA) is a commonly adopted approach to defining, assessing, reducing possible failures in designs, systems, processes, products, services. Traditional FMECA ranks the failure modes of products based on risk priority number (RPN), which obtained by multiplying elements. Conventional has shortcomings badly handling unknown information unreasonably ...

2014
Nishit Kumar Srivastava Sandeep Mondal

Most of predictive maintenance technologies are inaccessible to small scale and medium scale industries due to their demanding cost. This paper proposes a predictive maintenance policy using failure mode effect and criticality analysis (FMECA) and non-homogeneous Poisson process (NHPP) models which require minimal use of advanced monitoring technologies and sophisticated data acquisition system...

Journal: :Decision Support Systems 2009
Kwai-Sang Chin Ying-Ming Wang Gary Ka Kwai Poon Jian-Bo Yang

a r t i c l e i n f o Keywords: Failure mode and effects analysis Data envelopment analysis Overall risks Risk priority ranking Failure mode and effects analysis (FMEA) is a method that examines potential failures in products or processes and has been used in many quality management systems. One important issue of FMEA is the determination of the risk priorities of failure modes. In this paper ...

2016
JIAHUI LUAN Jiahui Luan Yifei Tong Dongbo Li

A welding robot is an advanced piece of machinery in industry, especially in the field of industrial automation. As a complex system, it has a high failure probability because it manipulates, controls and performs complicated objects and tasks. Therefore, more attention has recently focused on the reliability of a welding robot. Reliability is very important because its performance will affect ...

Journal: :Maintenance Reliability and Condition Monitoring 2021

This paper gives a practical systematic approach towards the maintenance procedure optimisation of critical industrial unit in operation, to improve its maintainability. The resolution maintainability challenge (Vibrating screen - VSU) was realised by performing two-phase analysis, encompassing criticality and assessment. assessment comprised failure investigation using fault tree analysis (FTA...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه صنعتی خواجه نصیرالدین طوسی - دانشکده مهندسی برق و کامپیوتر 1391

power transformers are important equipments in power systems. thus there is a large number of researches devoted of power transformers. however, there is still a demand for future investigations, especially in the field of diagnosis of transformer failures. in order to fulfill the demand, the first part reports a study case in which four main types of failures on the active part are investigate...

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