In particular, CBM is highly effective where safety and reliability is the paramount concern such as the aircraft industry, semiconductor manufacturing, nuclear, oil and gas, et cetera. Checking a machine for these indicators may include non-invasive measurements, visual inspection, performance data and scheduled tests.
For example, sensors throughout an aircraft monitor numerous systems while inflight and on the ground to help identify issues before they become life threatening.
Spot readings can be performed at regular intervals using portable instruments Sensors can be retrofitted to equipment or installed during manufacture for continuous data collection Critical systems that require considerable upfront capital investment, or that could affect the quality of the product that is produced, need up to the minute data collection.
CBM dictates that maintenance should only be performed when certain indicators show signs of decreasing performance or upcoming failure. Asset conditions need to trigger maintenance within a long enough time period before failure, so work can be finished before the asset fails or performance falls below the optimal level.
Data collection Data can be collected from the system by two different methods: Typically, CBM is not used for non-critical systems and spot readings suffice.
CBM introduces new techniques to do maintenance, which can be difficult to implement due to resistance within an organization. Empower your maintenance team Leverage the cloud to work together, better in the new connected age of maintenance and asset management. Compared with preventive maintenancethis increases the time between maintenance repairs, because maintenance is done on an as-needed basis.
Condition-based maintenance CBM Definition Condition-based maintenance CBM is a maintenance strategy that monitors the actual condition of the asset to decide what maintenance needs to be done.
Condition data can then be gathered at certain intervals, or continuously as is done when a machine has internal sensors.
Today, improvements in technology are making it easier to gather, store and analyze data for CBM. As they degrade, or fall out of alignment, the amount of vibration increases. Condition-based maintenance can be applied to mission critical and non-mission critical assets.
Older equipment can be difficult to retrofit with sensors and monitoring equipment, or can be difficult to access during production to spot measure. With CBM in place, it still requires competence to turn performance information from a system into actionable proactive maintenance items.
Condition monitoring thesis sensors can be used to detect when this becomes excessive. By looking at the type, size and shape of the metal particulates that are suspended in the oil, the health of the equipment it is lubricating can also be determined.
More expensive systems have built in intelligence to self-monitor in real time. In the example of industrial equipment, oil analysis can perform an additional function too.Condition Monitoring by This Thesis is concerned with the development of advanced automatic fault detection techniques so that high on-line diagnostic accuracy for important WT drive train mechanical and electrical CM signals is achieved.
ELECTROCHEMICAL MODEL BASED CONDITION MONITORING OF A LI-ION BATTERY USING FUZZY LOGIC A Thesis Submitted to the Faculty of Purdue University by.
procedure of condition monitoring is suggested in this thesis. Even though optimizing periodic maintenance using condition monitoring techniques leads to many benefits, there will be initial costs that may discourage the. MASTER THESIS (TPK) Using vibration monitoring of rotating equipment as a case study, it was.
iv demonstrated that the next generation of condition monitoring can integrate well into the In-dustrial Internet beyond low level data monitoring which is currently the case. It was shown. Wind Turbine Generator Condition Monitoring via the Generator Control Loop Mahmoud Nouh Zaggout A thesis presented for the degree of Doctor of Philosophy.
iii COST BENEFIT ANALYSIS OF CONDITION MONITORING SYSTEMS FOR OPTIMAL MAINTENANCE DECISION MAKING The following faculty members have examined the final copy of this thesis for form and content.Download