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From Editor’s desk

Great  Indian Engineering Challenges 

I am very glad to greet you all through this first issue of our PEJ –ONLINE.

The road map for our India to reach a pinnacle by 2020 has been well laid by our Honorable People’s President Dr APJ during the end of 20th century. We have crossed more than one third of this journey in this 21-st century.

The topic of my present editorial  is not a check list to give an Interim Report on what are all have been   done, what are all yet be done and what new things are to be done.We are fortunate enough to have our Guiding President of India with us to inspect the Great Chandrayaan –I and given us a target for ISRO to reach Mars.

We should be proud to tell the world that ‘ we engineers make the world’. 

Continued in page2

By  B. Hari Prasad ,  Dr M. S.  Bhat , Dr S. B. Singh

While reliability is considered for a single piece of equipment, mission reliability on the other hand, is associated with a group of equipment having mixed vintage, deployed as a combined force for a mission. Estimation and prediction of mission reliability is of paramount importance for the success of any operation because “Fore Warned is Fore Armed”.  This paper discusses various measures for mission reliability enhancement and its applications. After evaluating mission reliability of present equipment state using the probability plots of identified failure distribution weak links are identified by constructing Reliability Block Diagram (RBD), establishing cause-effect relationships through Fault Tree Analysis (FTA) and then studying their failure mode as well as criticality through Failure Mode Effect and Criticality Analysis (FMECA). Reliability enhancement of these weak components, sub-assemblies and assemblies are then improved through Predictive and Preventive Maintenance, Reliability Centred Maintenance (RCM), Total Productive Maintenance (TPM) and Condition Based Monitoring (CBM).

Keywords: RLD, Fault Tree Analysis, Failure Mode Effect and Criticality Analysis, Mission Reliability, RCM, CBM, TPM.

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Dr. R. Murugesan - LF 0036
Committee Member—IIPE, Tamil Nadu Chapter
President - ISA South India Section of the International Society of Automation.  (formerly the Instrument Society of America; this Section serves ISA members in the southern states of India and several countries in West Asia and South East Asia.)
Committee Member –Computer Engineering Division of Institution of Engineers (India)

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