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Failure risk analysis is the premise and foundation for reliability assessment of Photovoltaic modules. Aiming at the defect of quantitative RPN (risk priority number) value gap, index itself no clear physical meaning, greatly influenced by subjective, index design not considering weighting factor etc. For traditional FMECA (Failure Mode Effect and Criticality Analysis) method using the RPN to quantify...
Equipment Health Monitoring through Predictive Maintenance (PDM) data is proposed and the same is demonstrated with case study. Steel Rolling Mill Gearbox is considered for the purpose. Empirical failure rate model using Equipment Health Index (EHI) is proposed and used it for forecasting maintenance requirements of the process equipment. The strength of the proposed approach lies in integrating multiple...
The Coal mine safety is the keystone of the industry safety in our country, in which area, ventilation system is the basis to control the hazards such as gas explosion. Ventilator system is an important part of ventilation system, which can be seen as cold standby system, also is markov repairable system. Here we discussed and calculated the reliability and remain life probability of ventilator system...
This paper aims at applying simplified FMEA (Failure Modes and Effects Analysis), to electronic products for better quality. The procedure has five important steps. Studying the product and identifying failure modes are the pre-work and performing, analyzing and continuing FMEA remain the post-work. In SSIs(small scale industries), the work nature creates fear on use of detailed FMEA among employees...
A new reliability index is defined considering correct inaction, failure events and the failure probability of protected component in protective relays according to the risk theory. Relaying reliability is separated into the two different aspects of dependability and security in the calculation based on the losses resulted from failure events. A general 8-state Markov model is set up where resist-operation...
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