A study of condition based maintenance for land force vehicles sreeja rajesh and benjamin francis land operations division defence science and technology organisation dstogd0664 abstract condition based maintenance cbm is a method of both diagnostic and prognostic maintenance that has been used extensively in the air environment. On condition based maintenance policy sciencedirect. In either case, it involves the analysis of wave shapes and signal patterns, and the. Pdf managing conditionbased maintenance technology. Pump impeller inspected and found in perfect condition. Technical design of condition based maintenance systema case study using sound analysis and casebased reasoning. A case study hasnida absamat, livendran nair jeikumar, ernnie illyani basri, nurul aida harun and shahrul kamaruddin school of mechanical engineering. Technology has significantly enhanced our ability to detect and monitor the health and condition of critical components in army aviation. Case studies condition based maintenance cbm iqunet. The research approach includes questionnaires, oral. Cbm can drastically reduce operating costs and increase the safety of assets requir ing maintenance. Pdf case study of condition based health maintenance of. Cbm, based on the real state of the assets, is able to attribute depending on the conditioning a different breakdown pattern to each. No matter how your maintenance arises, time based, usage base, breakdown based or breakdown.
Hydraulic power generator tested before and after repair cleaning and drying edaiii system condition based maintenance of rotating machines. Pdf technical design of condition based maintenance systema. A multiple case study in the process industry article pdf available in journal of quality in maintenance engineering 171. Highquality service and reliability are the focus at db cargo, and the organization strives to drive efficiency across its operations to better serve its customers. Dont waste your time and money with condition monitoring. Dimensioning reserve bus fleet using life cycle cost models and condition basedpredictive maintenance. Roi for adopting a condition based maintenance strategy. Strategies and concepts such as condition based maintenance cbm have. A neural network approach to condition based maintenance. Condition based maintenance cbm is a subdivision of preventive methodology and is based on the belief that 99 per cent of equipment will evidence some sort of indicators prior a.
Dimensioning reserve bus fleet using life cycle cost. In the case study, the service order data, local dispensing station logs, and install asset data on medicine dispensing products are. This need is primary for process plants, for which minimization. Introduction steam system is an important part of many processing. The purpose of this study is to develop preventive maintenance planning with the implementation of the reliability centered maintenance methodology and to submit a schedule of planned preventive. Pdf technical design of condition based maintenance. This assumption is based upon the standardization of all army aviation maintenance practices and procedures. Using trend analysis in oil monitoring ali sayyah1, baharudin btht2, n. A case study on total productive maintenance in rolling mill.
By detecting abnormalities and predicting a failure, condition based monitoring enables scheduled maintenance during nonproduction hours. Predictive maintenance program and condition based. Case studies this paper considers two case studies, a mine in sweden and one in tanzania. Condition based maintenance system for heavy equipments case study. Reliabilitycentered maintenance methodology and application. In this study a major assumption is made that all maintenance test pilots are equal in order to evaluate like units. Implementing the oracle maintenance cloud a case study. Railway efficiency case study iiot system analytics for. Condition based maintenance cbm is one of the maintenance strategies applied for monitoring the operational conditions of cps. Condition based maintenance, condition monitoring, technology management, process industry. Predictive maintenance ith matlab4 sensor data from equipment can reside in multiple sources such as text files, spreadsheets, databases, and opc servers.
A case study of conveyor belts in an ore processing plant explains the situation. Through an investigation of the mh60s helicopter, this paper uses a gap analysis framework to determine the value of increasing cbm usage. The study establishes that a ppm schedule based on original equipment manufacturers. This paper presents a natural study of centrifugal pumps and associated motors to ascertain the extent to which. Pdf implementation of condition based maintenance in. What mrs nowlan and heap found was many types of failures could not be prevented no matter how intensive the maintenance activities. Condition based maintenance case study the cooling circuit pumps at.
This document contains a case study to better understand the possibilities of. A study of conditionbased maintenance for land force. Implementation strategies and tools for condition based. Benefits of lubricant oil analysis for maintenance. Predictive maintenance applies condition monitoring techniques to discover potential failures. Pdf reliabilitycentered maintenance methodology and. A case study on condition based maintenance of power transformer by analyzing the dga results and zeroing towards the problem through proper online and offline tests has been depicted in detail. Case study, predictive maintenance, condition based maintenance. Condition based maintenance and monitoring software fiix. Cbm can drastically reduce operating costs and increase the safety of assets requiring maintenance.
The use of condition monitoring tools reduces maintenance costs and enhances process quality since maintenance is only performed after one or more indicators show that the equipment is going to fail, or its performance is deteriorating. Maintenance, and has beco me the report upon which all subsequent reliability centered maintenance approaches have been based. Experienced maintenance officers conclude that maintenance is part science and art. By combining these technological advances with the existing systems for vibration analysis, we have developed a. Gis enabled condition based asset management of gas. Tc of a 1970 hp, 1200 rpm engine in a gas plant inspection findings recommendations actions. Cbm dictates that maintenance should only be performed when certain indicators show signs of decreasing performance or upcoming failure.
A cbm strategy, where the optimal time to schedule a service visit is forecasted. Pwc and mainnovation have joined forces in the field of maintenance and asset management. Abstract the increasing availability required to industrial plants and the limited budget often existing to assure it, require a careful formulation of maintenance optimization models. To overcome these challenges, modern maintenance principles are based on the application of the equipment condition monitoring techniques. Coit department of industrial and systems engineering 96 frelinghuysen road rutgers university. Productivity is a key weapon for manufacturing companies to stay competitive in a continuous growing global market.
However, cbm practice for maintenance planning is suboptimal. This emh2 architecture, which applies the holonic paradigm, aims to facilitate the monitoring and diagnosis of a. The empirical base for the study is a case study from a major manufacturing site in sweden. Predictive maintenance is surely one of the most talkedabout topics in maintenance and asset management. Condition based maintenance cbm has been the focus of department of defense efforts to reduce the cost of maintaining weapons systems for nearly two decades. Use of cbm has resulted in improvements in cp performance. It is a lot of work, and many failed programs can be traced back to a poor business case or its absence. Today, most maintenance is still performed either to a set calendar schedule or to that most ancient of operating procedures. In order to find out where companies currently stand regarding predictive maintenance, and where they plan to be in the near future, we surveyed 280 companies in belgium, germany and the netherlands. These studies promote implementation frameworks for cbm such as the. Pdm is a development of condition based maintenance with focus. 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.
Wherever your data is, you can get to it with matlab. This paper presents a guide for implementation of condition based maintenance cbm in a manufacturing industry, considering the technical constituents and organizational aspects when implementing cbm. A cbm program, if properly established and effectively implemented, can significantly reduce maintenance cost by reducing the number of unnecessary. 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. Case studies read about other organizations, their journey toward modern maintenance, and true success stories from the field.
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. The diagnostic capabilities of predictive maintenance technologies have increased in recent years with advances made in sensor technologies. The data was collected during a pilot project to implement cbm at the case company. By using a systems approach and a case study process, how condition based maintenance can be implemented as a routine has been investigated. 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. Smith department of industrial and systems engineering 207 dunstan hall auburn university auburn, al 36849 usa david w. Once deenergized, the two electricians removed all covers on the equipment in question 4. Conditionbased maintenance differs from schedulebased maintenance by basing. We are both convinced that maintenance can be brought to a new level by combining the power of new digital technologies with a deep understanding of maintenance. It requires improved instrumentation of the equipment and gradual checking of asset 23.
Different conditioning on the same asset lead to different type of breakdown with a different severity. A case study for improving maintenance planning of. Below is a summary case study of applied noregon technology and the profile of the company itself. Syan et al a case study for improving maintenance planning of centrifugal pumps using condition based maintenance. Conditionbased maintenance cbm is becoming increasingly important due to the high demands on production availability and efficiency. Within maintenance, conditionbased maintenance cbm programs can. In this paper, a case study is presented to demonstrate how a condition based maintenance cbm program can be used to utilize field data and usage data, to minimize unnecessary maintenance, and to reduce service costs. Optimal maintenance thresholds to perform preventive actions by. Maintenance cost optimization in condition based maintenance.
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. This work presents a case study which utilises a cbm approach for monitoring cps as part of a safety. Increased productivity can be achieved through increased availability. The modes can then be extracted from the graphical plot. Propulsion cooling sw pump bearing used ob a vessel. Reliability based maintenance strategy selection in process. Engineering campus, 14300 nibong tebal, penang, malaysia. Tpm framework for underground mobile mining equipment. Arc flash, case study, cast, electrocution, maintenance, iriss, paper mill, roi, time analysis, rudy wodrich. The case for conditionbased maintenance executive summary keeping physical assets in proper working order is essential to any organization. Condition based maintenance cbm is a maintenance strategy that monitors the actual condition of an asset to decide what maintenance needs to be done.
Condition monitoring is a central part of a condition based maintenance strategy. Maintenance, availability, reliability and total maintenance reliability cost are some of the most important. By using a systems approach and a case study process, how condition based maintenance can be. Preplanning to identify the equipment and obtain approval to shut down 2. Improving legacy aircraft systems through conditionbased.
Rudy wodrich vp engineering services, iriss save to library. The adoption of prognostic technologies in maintenance. The process of building the business case requires commitment and the assistance of multiple parties from areas like production, accounting, maintenance, management and others. The method is hinged on the basis of 20% of critical failure modes which causes 80% of failures. Reliabilitycentered maintenance methodology reliabilitycentered maintenance rcm is the optimum mix of reactive, time or interval based, condition based, and proactive maintenance practices. Doble has worked with this customer for over two decades, providing condition assessment services and failure investigations on its transformer fleet. Tech production department of mechanical engineering, yeshwantrao chavan college of engineering, nagpur, india. Rotating equipment problems will normally result in some form of frictional.
A case study on total productive maintenance in rolling mill chetan s sethia1, prof. Case study of cost benefits of condition based maintenance. Case study of condition based health maintenance of large power transformer at rihand substation using on line fddept. These principal maintenance strategies, rather than being applied independently, are integrated to take advantage of their re. Condition based maintenance system for heavy equipments case. The work is limited to maintenance of mobile mining equipment with special focus on load haul dump machines lhds. Maintenance policies are categorised into two main strategic streams. Db cargo is europes largest rail freight operator, and last year its fleet carried 300 million tons of cargo including autos, construction materials and consumer goods across europe.
Condition based maintenance applied to point machines. Condition based maintenance cbm uses primarily nondestructive testing techniques, visual inspection, maintenance history and performance data to assess asset condition 21 22. Deenergizing the equipment with two electricians to make sure it was safely isolated, locked out and tagged out 3. Condition based maintenance cbm is a subdivision of pm and similarly is widely talked about, although in contrast it is not a fully explored field in practice. The ipp wanted to address the immediate issues, and also further develop its transformer condition monitoring program beyond data gathering at regular maintenance intervals. Power transformers are important and expensive components in electric energy. Condition based maintenance cbm case study 1 type of analysis.
Partnering with doble doble has worked with this customer for over two decades, providing condition assessment services and failure investigations on its transformer fleet. Evaluation of the potential for predictive maintenance a case study at fortum master of science thesis production engineering, mppen. Condition based maintenance of manned or autonomous. Furthermore, we introduce relevant case studies that we have carried out until so far. Amsaa1 in pursuit of more costefficient monitoring systems to make this digital fleet a reality, amsaa developed the. Reliability, rcm, preventive maintenance, fmea, case study 1.
May 08, 2017 the ipp wanted to address the immediate issues, and also further develop its transformer condition monitoring program beyond data gathering at regular maintenance intervals. One issue is to implement the conditionbased maintenance cbm. Based on these results, the application of the predictive maintenance should be applied. David carles cells alba medsi 2012 1519 october 2012 shanghai, china. A study of conditionbased maintenance for land force vehicles. 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. Tech production, 2assistant professor, 3student, m. Making the business case for a conditionbased maintenance. Event management architecture for the monitoring and. Predictive maintenance attempts to detect the onset of a degradation mechanism with the goal of correcting that degradation prior to signiicant deterioration in the component or equipment. Condition based maintenance system for heavy equipments.
Ismail3 1, 2, 3 department of mechanical and manufacturing engineering, universiti putra malaysia 43400 upm, serdang malaysia abstract. The result is an implementation method in which four suggested phases are presented. Pdf maintenance cost optimization in condition based. Learn how we solved it using a condition based monitoring solution for gas compressors. It is based on a recursive decomposition of cooperative monitoring holons. Case study conditionbased monitoring for gas compressors. One of these techniques is used oil analysis also known as lubricant condition monitoring, which yields an insight into the physical and chemical state of the lubricating oil, as well as the condition of the. Case study of airport ground transportation vehicles alice e. Army command and general staff college in partial fulfillment of the requirements for the degree master of military art and science general studies by marc p. Condition based maintenance cbm is a subdivision of preventive. A recent case study looks at a paper mill that replace their traditional calendar based inspection program with a condition based maintenance program that allows personnel to inspect energized. A wellorchestrated condition monitoring system is an opportunity for continuous improvement, and the impacts can be dramatic a condition monitoring system enhances safe operation, preserves assets and minimizes environmental impact. Condition based maintenance cbm is a concept in which maintenance of machinery is performed when the need arises, as opposed to traditional practices of time based maintenance tbm and reactive fail and fix or planned maintenance, which can be costly, prone to human error, and in worst case lead to downtime or accidents. A large oil company sought to reduce yearly equipment maintenance cost by 10%.
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