Preventive, predictive and corrective maintenance presented by. Cbm is a set of maintenance actions based on realtime or nearreal time assessment of equipment condition which is obtained from embedded sensors it allows maintenance to be scheduled, or other actions to be taken to avoid the consequences of failure. Condition based maintenance cbm is a maintenance technique that offers some activities based on information which is gained from condition monitoring of selected equipment 1. Bean, senior member, ieee abstractthis paper discusses the limitations of time based equipment maintenance methods and the advantages of predictive or online maintenance techniques. Aug 29, 2016 condition based maintenance cbm or predictive maintenance is a technology that strives to identify incipient faults before they become critical which enables more accurate planning. Condition based maintenance system for heavy equipments case. Predictive maintenance and conditionbased monitoring. Current emphasis on improving maintenance policies and techniques while decreasing overall life cycle. Cbm can drastically reduce operating costs and increase the safety of assets requir ing maintenance. Condition based maintenance 1996 page 3 of 11 online vs. Sensor based telematics technologies generate volumes of data that are orders of magnitude larger than what operators. Cbm is a set of maintenance actions based on realtime or nearreal time assessment of equipment condition which is obtained from embedded sensors it allows maintenance. Condition based maintenance cbm, also known as predictive maintenance, is a maintenance practice that derives maintenance requirements, in large part, from realtime assessment of platform or weapon system condition. Condition monitoring methods and economics a paper presented by mj.
Condition based maintenance cbm is a maintenance philosophy used by industry to actively manage the health condition of assets in order to perform maintenance only when it is needed and at the most opportune times. Key steps to implementing conditionbased maintenance avt. Training manager dean whittle explains the reason for condition monitoring filmed at maintec 2015. The need for improved performance of the huge investment in industrial plant particularly electrical generating machinery in recent times necessitates the application of condition monitoring techniques in its maintenance.
Predictive maintenance is the complement of preventive maintenance. Jd edwards enterpriseone condition based maintenance. Condition monitoring techniques such as vibration analysis, ultrasonics, thermography and oil analysis can be used solely or in combination and are vital in making sure maintenance. The paper discusses how the tbm and cbm techniques work toward maintenance decision making. Preventative maintenance condition based predictive, proactive,reliability centered, on condition maintenance. Guide for surveys based on machinery reliability and. Conditionbased maintenance cbm is a maintenance philosophy used by industry to actively manage the health condition of assets in order to perform maintenance only when it is needed and at the most opportune times. Jul 15, 2015 our service agreements are based on a condition based maintenance approach enabled by constant monitoring of your equipment performance. The condition based maintenance data eliminated the need for many of the repairs that would normally have been included in the maintenance outage. Condition based monitoring cbm is a type of predictive maintenance that involves using sensors to measure the status of an asset over time while it is in operation. Condition monitoring when used to drive reliability improvement offers diagnostics, information and data for root cause analysis and equipment redesign, along with verification of defect or design correction. Examples of condition based maintenance with the vibration management enhancement program conference paper pdf available june 2005 with 1,610 reads how we measure reads. Jan 04, 2018 condition based maintenance is performed only when a need arises, typically in response to a deviation from the normal operation of a machine or piece of equipment. The terms condition based maintenance, on condition maintenance, and predictive maintenance are often used interchangeably.
Overview of predictive condition based maintenance. Predictive maintenance training course by online distance. Bayoumi, alex cao, rhea mccaslin, travis edwards condition based maintenance center university of south carolina. Albeit chronologically much older, it is considered one section or practice inside the broader and newer predictive maintenance field, where new ai technologies and connectivity abilities are put to action and where the acronym. Condition based maintenance cbm or predictive maintenance is a.
The data collected can be used to establish trends, predict failure, and calculate remaining life of an asset. Conditionbased maintenance cbm, also known as predictive maintenance, is a maintenance practice that derives maintenance requirements, in large part, from realtime assessment of platform or weapon system condition obtained from embedded sensors andor external tests and measurements using builtin diagnostic equipment. Condition monitoring as a reliability improvement strategy. Automation in condition based maintenance using vibration. Condition monitoring applied proactively is a context embracing world class reliability maintenance. An extensible cbm architecture for naval fleet maintenance. This publication collects and analyses proven condition based maintenance strategies and techniques engineering and organizational in member states. Cbm is theory used in the industry and government to actively monitor the health of the components or system in order to optimize operating costs and determine maintenance needs. The paper discusses how the tbm and cbm techniques work toward maintenance. Despite much interests on the cbm methods over diverse domains, there has been a lack of methods to combine product usage information with. It can quickly get confusing when people talk about preventive maintenance, condition based maintenance or predictive maintenance. The overall benefits of condition based maintenance management have proven to substantially improve the overall operation of both manufacturing and process plants. This relatively new approach to maintenance uses data drawn during operations andor maintenance intervals to forecast the need for additional or future maintenance.
Condition based maintenance cbm in the oil and gas industry. Reliabilitycentered maintenance methodology reliabilitycentered maintenance rcm is the optimum mix of reactive, time or interval based, condition based, and proactive maintenance practices. Condition based maintenance cbm or predictive maintenance is a technology that. Research, though, has shown that condition based maintenance. A wellorchestrated predictive maintenance program will all but eliminate catastrophic equipment failures. Condition based maintenance plus dod guidebook defense. Condition based maintenance takes advantage of technology developments in the areas of machinery monitoring, signal processing and fault modeling to reduce the cost of ownership through improved.
On condition based maintenance policy sciencedirect. Telematics, preventive maintenance, predictive maintenance, sensor arrays. Pdf condition based maintenance cbm in the oil and gas. A little lubrication and minor adjustments are done in this system. Condition based maintenance cbm is a maintenance strategy that, simply put, monitors the condition of machinery using various process parameters.
Choose the maintenance strategy which gives maximum reward. Conditionbased maintenance cbm, shortly described, is maintenance when need arises. An extensible cbm architecture for naval fleet maintenance using open standards sumant tambe realtime innovations, inc. Condition based maintenance cbm techniques, such as vibration monitoring, are becoming a very attractive. Reactive maintenance run to failurebased when it breaks, fix it preventive maintenance timebased prevent failures with regular maintenance predictive maintenance conditionbased monitor for out of tolerance today, maintenance is expected to contribute to the strategic goals. Cbm enables the military to have constant awareness of the health status of all wheeled vehicles, while forecasting major issues potentially affecting operational readiness.
Cbm is a set of maintenance actions based on realtime or nearreal time assessment of equipment condition which is obtained from embedded sensors it allows. Key steps to implementing conditionbased maintenance effective maintenance management depends on applying the appropriate maintenance techniques. This text attempts to present the fundamental justification for condition based maintenance. You will recall that preventive maintenance is timebased. Condition based maintenance also known as cbm is a maintenance methodology in which maintenance operations are performed depending on the current condition of your assets. Condition based maintenance and monitoring software fiix. Is a programmeprocess manual that describes goals, roles, responsibilities, and process. How and why is this ability to detect and visualize an objects temperature proile. Offline since the early 1990s, major interest in socalled online monitoring has started to appear in the industry. A maintenance strategy that is based on measuring the condition of assets to assess whether they will fail during some future period, and then taking appropriate action to avoid the consequences of that failure. Pdf examples of condition based maintenance with the. Condition based monitoring is an accepted feature of many industries. Bayoumi, alex cao, rhea mccaslin, travis edwards conditionbased maintenance center university of south carolina, columbia, sc 29208. Cbm introduces new maintenance techniques, which can be difficult to implement due to resistance within an organization.
An optimization method for condition based maintenance of. With predictive maintenance pdm, organizations are setting aside the old methodology of i think its bad to a condition based maintenance methodology of i know its bad. Reactive maintenance run to failure based when it breaks, fix it preventive maintenance time based prevent failures with regular maintenance predictive maintenance condition based monitor for out of tolerance today, maintenance. Condition based maintenance cbm, shortly described, is maintenance when need arises. More competitive together reduce maintenance costs. Condition based maintenance optimization considering multiple.
An overview of timebased and conditionbased maintenance in. Conditionbased maintenance cbm is a maintenance strategy that monitors the actual condition of an asset to decide what maintenance needs to be done. Optimal maintenance thresholds to perform preventive actions by. Condition based maintenance cbm offers the promise of enhancing the effectiveness. Across industry, many definitions are used when it comes to the different types of maintenance. There is no such thing as monitoring something based on condition. In condition based maintenance cbm optimization, the main optimization objectives include maximizing reliability and minimizing maintenance costs, which are often times conflicting to each other. Conditionbased maintenance requires an investment in measuring equipment and staff upskilling so the initial costs of implementation can be high. Prior to joining saic, amanda was a senior systems analyst, where she. Our reliability experts will discuss your maintenance requirements, identify critical assets and pinpoint maintenance resources to where they are needed most. Albeit chronologically much older, it is considered one section or practice inside the broader and newer predictive maintenance. Feb 21, 2017 condition based maintenance strategy 1.
A maintenance strategy that is based on measuring the condition of. Conditionbased maintenance, which is predictive in nature, is part of conditionbased monitoring. Cbm is based on using realtime data trends to optimize maintenance resources. As it is normally used, pm minimizes downtime only. Maintenance is carried out on the basis of the failure. Condition based maintenance and condition monitoring. Modern predictive maintenance focuses on maximising operating profit by driving reliability growth throughout your plant and equipment lifetime. Condition based maintenance cbm offers the promise of enhancing the effectiveness of maintenance programs in a way that no other single concept has ever matched. Condition based maintenance engineer jobs, employment. Preventive maintenance pm, as scheduled maintenance tends to be called, doesnt prevent anything, navarro says.
To ensure proper techniques and procedures are followed over greasing is often worse than not. The terms conditionbased maintenance, on condition maintenance, and predictive maintenance are often used interchangeably. Finally, future developments in the use of expert systems and a1 techniques are highlighted. Research, though, has shown that condition based maintenance has not been implemented on a wide basis. Apply to corrosion engineer, mechanical associate, engineer and more.
Condition based maintenance is the process of monitoring the condition of an asset and taking an action to avoid the consequences of a failure. The use of a cbm program will blend perfectly with the five factors mentioned in section 3. Conditionbased maintenance and machine diagnostics gives details of both offtheshelf solutions and analytic diagnostic techniques to enable a bespoke solution to be developed. Condition based maintenance cbm or predictive maintenance is a technology that strives to identify incipient faults before they become critical which enables more accurate planning. For more information for more information about realtime data via the opc communication standard, condition based maintenance or computerized maintenance. Six steps to conditionbased maintenance plant services. Cbm can drastically reduce operating costs and increase the safety of assets requiring maintenance. Implementation strategies and tools for condition based. In condition based maintenance, critical item characteristics are monitored through, for example, vibration or temperature monitoring in order to gain early indications of an incipient failure.
Cbm is maintenance based on evidence of need, and rcm provides the rules of evidence. A cbm program, if properly established and effectively implemented, can significantly reduce maintenance cost by reducing the number of unnecessary. One issue is to implement the condition based maintenance cbm approach that makes a diagnosis of the asset status based on wire or wireless monitored data, predicts the assets abnormality, and executes suitable maintenance actions such as repair and replacement before serious problems happen. Though the term is used in industry, it is used incorrectly. Cbm is theory used in the industry and government to actively monitor the health of the components or system in order to optimize operating costs and determine maintenance. Conditionbased maintenance and machine diagnostics. This paper presents an overview of two maintenance techniques widely discussed in the literature. Planned predictive maintenance strategy that does not make you more production and profit is a poor sort of condition based maintenance program. Cbm dictates that maintenance should only be performed when certain indicators show signs of decreasing performance or upcoming failure. Within maintenance, conditionbased maintenance cbm programs can provide.
One issue is to implement the conditionbased maintenance cbm. Factors such as fault and failure modes, criticality and costeffectiveness need to be considered. Run to failure rtf, and conditionbased maintenance cbm techniques to in an. For example, the condition based maintenance or condition based maintenance keywords have 232 and 54 common occurrences, and a total link strength of 368 and 83 with other keywords, respectively. Jul 26, 2006 six steps to condition based maintenance an exciting trend in the world of cmms is the increasing sophistication of condition based maintenance cbm features and functions vendors offer and maintenance professionals actually use. Chapter 5 types of maintenance programs us department of energy.
The overall benefits of condition based maintenance management. Through the utilization of various nondestructive testing and. An optimization method for condition based maintenance cbm of aircraft fleet considering prognostics uncertainty is proposed. More competitive together reduce maintenance costs by standardized solutions and services within condition monitoring.
Applied basically when number of equipments are few. In this study, we have addressed several aspects of cbm approach. Online condition monitoring is also a tool among many useful tools in the area of asset management. Time maintenance condition based maintenance maintenance policies offline online failure based maintenance break down maintenance. This maintenance is performed after one or more indicators show that equipment is going to fail or that equipment performance is deteriorating. In manufacturing, its application has been somewhat muted. Infrastructure and configuration required to turn diagnostics into information. Just doing condition monitoring will not improve reliability, as dean explains. Guide for survey based on preventative maintenance techniques. United states army is considering condition based maintenance cbm practices. In this work, we develop a physical programming based approach to deal with the multiobjective condition based maintenance optimization problem. Using commercialofftheshelf software and standards based applications, such tasks can be completed economically and provide exceptional addon value to the cmms installations.