Woodley principles and methods as a starting point for any discussion on condition monitoring it is useful to define what is meant by the term, and to describe how it relates to other techniques used in the operation. O box 688, queens buildings, newport road, cardiff, cf2 3te, uk. Condition monitoring doesnt work for every asset, so knowing which ones dont support sensors or other monitoring tools and techniques can. Condition monitoring techniques for fibre mooring ropes. More competitive together reduce maintenance costs by standardized solutions and services within condition monitoring. Condition monitoring techniques have gained importance over the years in an effort to tackle problems such as the following. Section 5 elaborates many important condition monitoring techniques, such as vibration. Page 1 condition monitoring tests and predictive maintenance can help pump operators determine when to overhaul pumps in a way that minimizes costs.
Given the constant demand for heavier, longer, faster, and more efficient rail freight vehicles, onboard fault detection systems appear as a good approach for enhanced railway asset exploitation. Condition monitoring of rotating machines has become necessary to stop the unexpected machine shutdown. Process monitoring and control of machining operations. Condition monitoring programs are started for a variety of reasons.
The collection, storage, comparison, and evaluation of data taken from a machine to establish the running condition of that machine. Techniques collectively referred to as vibration condition monitoring have a common objective of indicating early signs of deterioration, or malfunction in plant machinery through surveillance testing and analysis. Pdf lubricant analysis as a condition monitoring technique. As a starting point for any discussion on condition monitoring it is useful to define what is meant by the term, and to describe how it relates to other techniques used. The study contained in this report is a continuation of the 2009 paper and focuses on results obtained by various cm techniques from a damaged gearbox reliability collaborative test gearbox. Pdf condition monitoring techniques for fibre mooring ropes. Pdf condition monitoring system for process industries a business. Should be on the desk of any practitioner or researcher involved in the field of machine condition monitoring simon braun, israel institute of technology explaining complex ideas in an easy to understand way, vibrationbased condition monitoring. This is quantified as the average percentage of remaining useful life rul across all machines and reportable conditions during the reporting.
Condition monitoring is the process of monitoring conditions in machinery such as vibration and temperature to look for signs that a fault may be developing. Integrated condition monitoring technologies ird balancing. Condition monitoring an overview sciencedirect topics. The complete conditionbased maintenance cbm guide fiix. Onboard condition monitoring sensors, systems and techniques. Overdoing maintenance can cause equipment to deteriorate faster. Industrial, aerospace and automotive applications is essential reading for graduate and postgraduate students researchers in machine condition monitoring and. The extent to which condition monitoring is applied to transformers on a system will. What are condition monitoring and preventive maintenance. Condition monitoring as an advanced maintenance technique. For this reason, achieving costeffective plant maintenance is highly important. Various techniques for condition monitoring of three phase. A manager might attend a seminar and be convinced of the benefits.
All a series of reports detailing the bene condition of vital rotating machinery problems have been detected by the fits of such a machine monitoring sys in the plant is one such scheme. Abdel kader attou, qadeer ahmed, in proceedings of the 1st annual gas processing symposium, 2009. With contributions from experts throughout the world, the handbook of condition monitoring addresses the four major technique areas in condition monitoring in addition to the. Condition monitoring methods the british institute of. Overall condition monitoring effectiveness ocme this metric defines the overall effectiveness of condition monitoring inspection combined with technologybased condition monitoring. Condition monitoring or, colloquially, cm is the process of monitoring a parameter of condition in machinery vibration, temperature etc. Hence, vibrations monitoring and analysis is also one of the most widely used technique in condition based maintenance and rely a lot on instrumentation machine vibrations stack a lot of information about the condition. A typical condition monitoring programme flowchart is shown in. The use of vibrationbased analysis damage detection techniques is. The selection of the people involved in the condition monitoring program is critically important. All a series of reports detailing the bene condition of vital rotating machinery problems have been detected by the fits of such a machine monitoring. Ultrasonic condition monitoring ucm is a technique that uses airbornenoncontact and structure bornecontact ultrasound instruments to receive high frequency ultrasonic emissions produced by operating equipment, electrical emissions and leaks etc. 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. Condition monitoring methods the british institute of non.
Condition monitoring as a reliability improvement strategy. Managing a successful condition monitoring program. Condition based maintenance cbm is a maintenance strategy that monitors the actual condition of an asset to decide what maintenance needs to be done. Looseness of mechanical parts, vibration, temperature, pressure, wind speed, current, voltage e. Choose the maintenance strategy which gives maximum reward. Machine condition monitoring and fault diagnostics chris k. A general purpose, multilevel data processing system for condition monitoring. The study contained in this report is a continuation of the 2009 paper and focuses on results obtained by various cm techniques.
Condition monitoring cm is a tool commonly employed for the early detection of faultsfailures so as to minimise downtime and maximize productivity. Automated condition monitoring and state detection algorithms diagnostic algorithms enhanced prognostic techniques advisory tools and systems business process analysis and automation asset management and tracking systems troubleshooting and maintenance aids interactive and handson training. Predictive maintenance is the complement of preventive maintenance. With contributions from experts throughout the world, the handbook of condition monitoring addresses the four major technique areas in condition monitoring. Condition monitoring was carried out, at one time, by an experienced engineer holding a wooden. Handbook of condition monitoring techniques and methodology by a. Ocme is defined by the overall effectiveness of condition monitoring inspection combined with technologybased condition monitoring in detecting root causes and early detection of failure symptoms. It is felt the term condition management suitably raises the status and combines the range of many specialist monitoring techniques. Medium voltage switchgear, type unigear zs1 although detailed reliability information is absent, industry experience has shown that mechanical and thermal monitoring are the first and second most effective means of assessing circuit breaker. Condition monitoring system market estimated to exhibit 9. Rules for classification and construction i ship technology. 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.
Condition monitoring techniques are normally used on rotating equipment, auxiliary systems and other machinery compressors, pumps, electric motors, internal combustion engines, presses, while periodic inspection using nondestructive testing ndt techniques and fit for service ffs evaluation are used for static plant equipment such as. Condition checking is a subset of condition monitoring. Condition monitoring techniques are normally used on rotating equipment and other machinery such as pumps, electric motors, internal combustion engines and presses. The purpose of this book is to inform readers about techniques currently available in the field of condition monitoring, and the methodology used in their application.
Through the utilization of various nondestructive testing and measuring techniques. All these selections of components and parameters to be monitored, monitoring and diagnostics techniques to be used, acceptance criteria and trending for condition. The ideas are based on observations made by the author over a 20 year involvement with condition monitoring, but also from a survey conducted on users of our vibration analysis training product. Systems division, school of engineering, universityof walescardiff uwc, p. Condition monitoring and diagnostic techniques for mv vacuum. Condition monitoring of induction motors is a fast emerging technology for online detection of incipient faults. Through the utilization of various nondestructive testing and measuring techniques, predictive maintenance determines equipment status before a breakdown occurs. Comments on the reliability, corrosion resistance, installation techniques etc. Condition monitoring, methods and a general purpose. Pdf vibration condition monitoring techniques for fault. Basics of oil condition monitoring through oil analysis. Several techniques are used for cm of rotating machines such as vibration signature analysis, acoustic emission monitoring, motor current signature analysis mcsa, but these monitoring techniques. It is hoped that the tools presented in this article will help asset managers and engineers apply predictive maintenance approaches and condition monitoring to process pumps, as well as improve management of pump assets to provide capacity for. The focus of this chapter is on the definition and description of machine condition monitoring and fault diagnosis.
Infrastructure and configuration required to turn diagnostics into information. Vibration analysis is the main conditions monitoring techniques for machinery maintenance and fault diagnosis. There may be a catastrophic machine failure and it is suggested that. Condition based maintenance requires an investment in measuring equipment and staff upskilling so the initial costs of implementation can be high.
Condition management in process and manufacturing is one of the key strategies for ensuring plant productivity, reliability and integrity. Onboard condition monitoring sensors, systems and techniques for freight railway vehicles. This technique has its unique advantages and disadvantages associated with the. Implementation strategies and tools for condition based. Condition monitoring, induction motors, fault monitoring. Particular techniques of condition monitoring are only introduced briefly, and are covered in more detail in other international standards referenced within this standard. Cbm introduces new maintenance techniques, which can be difficult to implement due to resistance within an organization. Condition monitoring is the process of monitoring a parameter of condition in machinery vibration, temperature, etc. Structure, uses, issues, and types of maintenance, machine fault signature. Infrared thermography, acoustic emission, vibration analysis, ultrasound, lubrication oil analysis.
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. Investigation of various conditionmonitoring techniques. 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. Condition monitoring doesnt work for every asset, so knowing which ones dont support sensors or other monitoring tools and techniques can save you lots of time and money later. How to measure the effectiveness of condition monitoring. Guidance notes on equipment condition monitoring techniques.
As a starting point for any discussion on condition monitoring it is useful to define what is meant by the term, and to describe how it relates to other techniques used in the operation and maintenance of. Condition monitoring activities should be directed towards identifying and avoiding root cause failure modes. Introduction condition monitoring cm is a process of monitoring a parameter of condition in. Handbook of condition monitoring techniques and methodology. Wind turbines wt are one of the fastest growing sources of power production in the world today and there is a constant need to reduce the costs of operating and maintaining them. This report summarizes several of the most effective and commonly used condition monitoring techniques. Hence, vibrations monitoring and analysis is also one of the most widely used technique in condition based maintenance and rely a lot on instrumentation machine vibrations stack a lot of information about the condition of a machine.
Condition monitoring and diagnostics of machines general. Sep 01, 2012 page 1 condition monitoring tests and predictive maintenance can help pump operators determine when to overhaul pumps in a way that minimizes costs. Condition monitoring system an overview sciencedirect. Such techniques are an enhancement to, but are not a replacement for, the protection applied to a transformer. Pdf vibration analysis is the main conditions monitoring techniques for machinery maintenance and fault diagnosis. Machine condition monitoring and fault diagnostics 25 5. Vibration analysis techniques, indicators and parameters used in condition monitoring are arranged in a historical perspective. Condition monitoring methods for pumps chemical engineering. Automated condition monitoring and state detection algorithms diagnostic algorithms enhanced prognostic techniques advisory tools and systems business process analysis and automation. Condition monitoring is an effective way to increase the available production time and to improve the cost effectiveness of the maintenance in the process industry.
The extent to which condition monitoring is applied to transformers on a system will depend on many factors, amongst which will be the policy of the asset owner, the suitability of the design existing transformers may require modifications involving a period out of service this. The first key ingredient is a condition that can be monitored. From an informed awareness and understanding of their equipment and processes operators are capable of using look, listen and feel skills to identify the warning signs of failure. Condition monitoring and diagnostic techniques for mv vacuum switchgear photo credit. Rules for survey after construction part 7 or the abs. Vibration condition monitoring techniques for fault diagnosis of electromotor with 1. The benefits of deploying intelligent fault diagnostics techniques on machines increase productivity and ultimately profits for the business. Dec 19, 2010 developed out of notes for a course in machine condition monitoring given by robert bond randall over ten years at the university of new south wales, vibrationbased condition monitoring.
Condition monitoring methods condition management in process and manufacturing is one of the key strategies for ensuring plant productivity, reliability and integrity. Several techniques are used for cm of rotating machines such as vibration signature analysis, acoustic emission monitoring, motor current signature analysis mcsa, but these monitoring techniques are complex and require expensive sensors 810. It is one in monitoring to monitor and analyse the downs on monitored equipment. It is hoped that the tools presented in this article will help asset managers and engineers apply predictive maintenance approaches and condition monitoring. Since corrosion can lead to unexpected failures that can be costly in terms of repair costs, environmental damage and potential harm to humans, condition monitoring. Without doubt the best modern and uptodate text on the topic, wirtten by one of the world leading experts in the field.
1096 445 1245 1102 1573 27 818 1467 1583 676 202 891 1236 699 642 198 275 29 981 1202 1237 586 1427 664 37 1329 1269 621 1449 1326 14 741