By monitoring RULE and its standard deviation as in Slide 5, the reliability engineer may easily judge what an appropriate inspection interval should be. The following sequence of slides defines RULE. Returning to the original question, although there is no relationship between the P-F interval and the failure rate, there is one between RULE and the “conditional” failure rate. Assinatura Focus: Clique neste link e entenda por que os alunos do Focus tm maiores chances de aprovao em concursos pblicos. A quantitative process with which to measure and improve continually the CBM program’s effectiveness. ![]() However, Big Data, as applied to failure prediction (for. vibration, or noise, or wall thickness etc.). One of the other key aspects of the PF Interval is that it relates to one failure mode at a time, and the output is one alarm level for one parameter of equipment health (e.g. Proponemos un enfoque alternativo más general basado en el. Abstract En este artículo se analiza el Intervalo P-F para la toma de decisiones CBM, sus áreas de utilidad y aquellas áreas en las que es inadecuado utilizarlo como estrategia de mantenimiento predictivo. An optimal economic maintenance decision point (based on current age and condition and business factors), and The PF Interval in the world of predictive analytics and big data. El Elusivo Intervalo P-F Posted on by Luis Hoyos Vásquez. About Press Copyright Contact us Creators Advertise Developers Terms Privacy Policy & Safety How YouTube works Test new features Press Copyright Contact us Creators.A remaining useful life (RULE) with confidence interval, based on current age and condition of the item.Once a CBM program is underway having determined an initial CBM inspection interval, the LRCM and EXAKT procedures provide: Up to now, no systematic procedure has been expounded with which to use on-going experience to optimize the inspection interval based on the PF interval.ĮXAKT can provide guidance to selecting an optimal inspection interval. The sole intent of the PF interval is to suggest a reasonable monitoring interval when starting a condition based maintenance program. ![]() ![]() The PF interval can be roughly estimated from experience or from laboratory testing. It is the lead time between the ability to detect a failure process and the actual loss of function. The PF interval is unrelated mathematically to the failure rate. It depends on the purpose of the study and the type of data (qualitative or quantitative) on which the selection of an appropriate scale is being dependent. Scales of measurement are defined as the ways to collect and analyze data. You can’t know the PF interval directly from the failure rate. There are four scales of measurement in statistics which are nominal scale, ordinal scale, interval scale, and ratio scale. How can the PF interval be determined from the failure rate?
0 Comments
Leave a Reply. |