2019年1月1日 · In the proposed framework, Fuzzy Lambda–Tau (FLT) approach has been used for computing reliability, availability and maintainability (RAM) parameters of the considered system. Further, for enhancing the RAM characteristics of the system, improved Fuzzy Failure Mode Effect Analysis (FMEA) approach is adopted.

2024年11月20日 · To address the challenges associated with semi-quantitative information, incomplete data, or estimates derived from expert judgements, this work is intended to propose a novel procedure based on a Fuzzy-FMEA integrated into a RAM analysis framework to analyze and optimize the structure, operation, and maintenance of an engineered system.

2020年10月1日 · This study proposes a fully fuzzy network DEA-RAM model for calculating the fuzzy efficiency score of the organizations with network structure (such as airlines) in uncertain environments.

The development of fuzzy numbers from the available data and using fuzzy possibility theory can greatly increase the relevance of reliability study. RAM parameters of the system have been calculated by using ABCBLT technique and results are compared with Lambda-Tau results.

The approach has been demonstrate through RAM analysis of the screening unit of a paper industry using ABC and Lambda-Tau methodology. The computed results are compared with the fuzzy Lambda-Tau results. The sensitivity analysis of the components has been done by using proposed RAM-Index analysis for finding the components as ̃A μ ̃A(x) α-cut 0

2025年4月2日 · The current study presents a new approach based on Triangular Pendant Hesitant Fuzzy Set (TPHFS) for Reliability, Availability and Maintainability (RAM) analysis of repairable systems. For this purpose, the definition of TPHFS and the arithmetic operations between two triangular pendant hesitant fuzzy numbers (TPHFNs) are introduced.

2012年12月1日 · Reliability, availability and maintainability (RAM) analysis has helped to identify the critical and sensitive subsystems in the production systems that have a major effect on system performance.

A composite measure of reliability, availability, and maintainability (RAM) parameters called as the RAM -Index has been proposed for measuring the system performance by simultaneously...

TL;DR: This work proposes a novel integrated MCDM approach by combining Fuzzy Analytical Hierarchy Process (FAHP) with the modified FBuzzy Multi-Attribute Ideal Real Comparative Analysis (modified FMAIRCA), which is computationally inexpensive and able to provide more viable decisions.

This paper integrated the root assessment method (RAM) with a spherical fuzzy set (SFS) to rank the alternatives and select the best electricity production technology. The SF-Entropy is used to compute the factor’s weights, and the SF-RAM method ranks the alternatives. This study used four main factors, 29 subfactors, and 24 alternatives.