Implementation and Application of Prognostics
| Attachment | Size |
|---|---|
| Prognostics Overview Report.pdf | 241.3 KB |
| nanoDFM_OV_revC.pdf | 214.99 KB |
| Prognostics_OV_revE.pdf | 212.28 KB |
| SentinelPHM_OV_revA.pdf | 157.69 KB |
| RingDown_OV_revJ.pdf | 156.31 KB |
| SJBIST_OV_revC.pdf | 263.35 KB |
The objective of the method is to identify precursors to product/system failure. On base of this information define criteria to assess reliability and health of the product throughout its lifetime. In order to do so, include the necessary test observation HW/SW into the design. This is done based on a set of Electronic prognostics health management (ePHM) guidelines and the transfer of know-how and providing guidance for the improvement of existing tools and the development of new tools (such as the Muяphy Workbench).
In addition, a second objective of the method is to provide guidelines for clear documentation and an activity impact matrix detailing the impact of ePHM decisions on HW & SW development.
So far maintenance is done based on a predefined time schedule. To avoid failure during operation, components and/or systems are replaced after a predefined operation time. In most cases, the systems and or components that are being replaced are still healthy having a negative impact on maintenance and repair costs.
Prognostics is the art of using precursors to failure to determine when a system is about to break-down. It is based on making an assessment of the design with the target to identify “sense” components (components of which the behaviour over time changes more rapidly than other components) and/or observation points (points that are sensible to changing component parameters) which are then monitored during the life-time of the product for abnormal changes. An abnormal change observation is then the trigger for a maintenance action. Prognostics is based on continuously monitoring the fitness of the system, issuing alarms when critical levels are reached and in that way supporting preventive maintenance.
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