As Reliability Engineering and Condition Monitoring based company that has been established since 1995, PT. Tiara Vibrasindo Pratama always try to innovate and facilitate reliability engineering and condition monitoring practitioners in Indonesia. Thus, we created this place and facility for all reliability practitioners to share Best Practice that has been done by each companies. Best Practice is a process, procedure and execution that has been proved as solutions. This place is more well-known as Tiara Reliability User Conference (TRUC).
TRUC 2018 was held on 31st July – 2nd August in Tanjung Benoa, Bali. This year’s theme was Achieving Tangible Reliability Through Optimization of Life Cycle Strategy Execution. This was formed with the importance of reliability activity planning for equipment throughout its life cycle stage. This article will describe the summary of Best Practice formulation for Asset Maintenance.
RAM Analysis (Reliability, Availability & Maintainability) is an analysis that describes operation time (reliability) and maintenance time (maintainability) for equipment. Meanwhile, availability is a comparison value between operation equipment time with total operation time and maintenance equipment time. Other description for reliability is Time to Failure, and Time to Repair is other description of maintainability.
The calculation of parameter value on RAM Analysis should be done on an equipment level, even on more detailed stage failure mode. Analysis for equipment could help us identifying bad actors on plant or factory. If the identify process was done on failure mode stage, the collected data could also help identifies the effectiveness of a maintenance strategy.
Picture 1. Reliability, Availability & Maintainability (RAM) Graphic
There are so many equipment in one plant or factory that reliability engineer will find it quite hard to decide which equipment that the maintenance strategy should be first evaluated. One of the most helpful method is to register critical damaged equipment. Other method is by defining Mean Time Between Failure (MTBF) and Mean Time to Repair (MTTR) data. This RAM analysis could help Reliability Engineer to get that needed information. Data preparation starts with identifying when will one equipment shuts down and defining the needed time to repair that equipment. Thus, RAM Analysis helps MTTF and MTTR evaluation.
Picture 2. Mean Time between Failure (MTBF), Mean Time to Repair (MTTR) & Mean Time to Failure (MTTF)
For more comprehensive analysis on a factory, RAM analysis should be associated with Reliability Black Diagram (RBD) Analysis. RBD Analysis is a RAM method which could further evaluates a configuration system of optimum Factory Availability development.
Scientifically, reliability parameter is measured with percentage. Weibull equation method is usually used for the measurement. On manufacture industries, deriving Weibull-Reliability curve (Picture 3) is concluded by testing factory equipment until its failure. For examples there are 1000 equipment to be tested, and that equipment are still 100% working perfectly. If along the process there are some equipment failure (reliability becomes less than 100%) and all those failure time gaps between one equipment to another should be recorded and calculated, until there is no more equipment to be tested (0% reliability).
Picture 3. Weibull Curve
The purpose of RAM analysis is:
Equipment failure time data is also used on Reliability data with Weibull method, so those data show Weibull parameters that is needed for RBD process.
RAM analysis utilization:
RAM Analysis obstacles:
On doing RAM analysis, several methods are needed so the whole process could be done perfectly, such as completed tools or technologies, business process and competence.
PIC to make sure failure code, work duration and actual feedback consistently
PIC that inputs failure code should have CMMS usage competency and fully understand business process model
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TRUC is an informal campus to strengthen practitioners’ ability on Predictive Maintenance. Hopefully, in the future TRUC will always be the place to share and learn for all Indonesia’s reliability practitioners.
Dody Said; Team Leader Technical Training Center; Chevron Pacific Indonesia
TRUC is a communication media to share Best Practice. This conference is best for every reliability practitioners in order to implement best and suitable solutions that will be formulated from different success cases from different companies and industries. PT. Tiara Vibrasindo Pratama has big influence as the organizer of this conference. I participated to this conference a couple of times and already able to apply best practices that I got from this conference for my company.
Juneven Siregar; Power Plant Management Specialist; PT. Indonesia Power UJP Banten 2 PLTU Labuan
TRUC is very well made conference, where all reliability practitioners from all different companies and industries gather to share different phenomenon through multiple technology approach. Thus, it helps all reliability practitioners become more comprehensive.
Tarsis Tinggi; Engineer Manager; PT. Indonesia Power Maintenance Service Unit
This is a special event which is rarely happened in Indonesia and consistently giving the space and time for industry to share various techniques in PdM. This conference held also as a benchmarking of maintenance system and reliability application maturity.
Ilham B. Santoso; Rotating Equipment Engineer Team Leader; BP Tangguh
PT. Tiara Vibrasindo Pratama is company which consistent on Plant Reliability. TVP has proved their capability on providing best reliability solution to improve many companies’ asset performance, especially in PJB. As a conference for TVP’s customer, TRUC is an event to improve our knowledge
Iwan Agung; President Director; PT. Pembangkitan Jawa Bali
This is a very beneficial and well-made conference for Reliability workload. With various study cases from different company and industries, it will enrich our knowledge as reliability practitioners. We already referred some of study cases results from TRUC as our problem solving back in our company. PT. Tiara Vibrasindo Pratama also has big part by providing technical support and consultancy for best solution for asset performance.
Budi Widi Asmoro; Engineering Manager; PT. PLN (Persero) Pembangkitan Sumatera Bagian Selatan
TRUC is a very valuable event to accelerate best practice transfer knowledge among reliability practitioners, and also applicable for their own agenda. PT. Tiara Vibrasindo Pratama as the organizer of this conference hold the role of problem solver to industrial problems nowadays. This conference is very beneficial for both the participants and the organizer.
Wahyu Maulana; Deputy Project Manager; Supreme Energy Muara Laboh