DISPOSAL CRITICALITY ANALYSIS METHODOLOGY TECHNICAL REPORT

Failure mode effects and criticality analysis (FMECA) is a widely useful design tool for enhancing product quality, safety and reliability. Most of the current FMECA procedure is in accordance with MIL-STD-1629A by which to conduct FMECA and criticality analysis, which is able to prioritize the failure modes and undertake limited corrective actions toward eliminating product risks. However, the criticality analysis calculation and its interpretation for a failure mode have some mathematical difficulties and erroneous omissions. To resolve these problems, this study proposes a new amalgamated criticality analysis methodology, which is knowledge-based to obtain the four different factor criteria and then using the maximal entropy ordered weighted geometric averaging (ME-OWGA) approach to compute the criticality numbers for a system. This study evaluates criticality analysis in the context of a communication system; the experimental results demonstrate that the proposed method is both accurate and provides discriminating analysis information that helps decision making in product design processes.

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DESIGN FOR RELIABILITY AND MAINTAINABILITY USING FMECA: CASE STUDIES OF MOBILE UNDERGROUND MINING EQUIPMENT

Proceedings of the Canadian Engineering Education Association (CEEA) ◽

10.24908/pceea.v0i0.3821 ◽

2011 ◽

Author(s):

Shankar S. Thakur ◽

Patrick F. R. Murphy ◽

Laeeque K. Daneshmend ◽

Daniel J. Lucifora

Keyword(s):

Case Studies ◽

Failure Modes ◽

Underground Mining ◽

Operating Conditions ◽

Mining Equipment ◽

Design For Reliability ◽

Analysis Methodology ◽

Maintainability Analysis ◽

Criticality Analysis ◽

The Relationship

Underground mining equipment must be designed to survive very demanding, and often unpredictable, operating conditions – hence reliability of equipment designs is crucial. Conversely, the underground mining environment imposes severe logistical constraints on equipment maintenance and repair – hence maintainability is also a significant design goal. This paper presents the outcomes of case studies related to the Design for Reliability and Design for Maintainability of mobile underground mining equipment. Failure Modes, Effects, and Criticality Analysis (FMECA), a well established tool for both reliability and maintainability analysis, is employed. The case studies deal with a Load-haul-Dump (LHD) vehicle and an underground truck. The specifics of the analysis methodology adopted, levels of effort, outcomes, and practical lessons learnt are discussed. The relationship between such FMECA analysis and the wider issues and implications of adoption of Related Centred Maintenance (RCM) by both mining equipment manufacturers and mining companies is also explored.

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Validation plan of bone marrow collection, processing and distribution using the failure mode and effect analysis methodology: a technical report

Cytotherapy ◽

10.1016/j.jcyt.2021.10.005 ◽

2021 ◽

pp. 1397

Author(s):

Luciana Teofili ◽

Maria Bianchi ◽

Caterina Giovanna Valentini ◽

Martina Bartolo ◽

Nicoletta Orlando ◽

...

Keyword(s):

Bone Marrow ◽

Failure Mode ◽

Effect Analysis ◽

Analysis Methodology ◽

Technical Report ◽

Validation Plan

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