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 order to safeguard the safety of passengers and reduce maintenance costs, it is necessary to analyze and evaluate the security risk of the Railway Signal System. However, the conventional Fuzzy Analytical Hierarchy Process (FAHP) can not describe the fuzziness and randomness of the judgment, accurately, and once the fuzzy sets are described using subjection degree function, the concept of fu...

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...

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...

Today, billions of dollars are being spent annually world wide to develop, manufacture, and operate transportation system such trains, ships, aircraft, and motor vehicles. Around 70 to 90 percent of transportation crashes are, directly or indirectly, the result of human error. In fact, with the development of technology, system reliability has increased dramatically during the past decades, whi...

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...

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 ...

This paper proposes a methodology for managing complex sewerage networks based on the concomitant use of two performance evaluation methods, namely, failure modes, effects, and criticality analysis (FMECA) analytical hierarchy process (AHP). The FMECA is used to determine risks structural failures making it possible establish these failures. AHP check relationship consistency between indicators...