Efficient Plant October 2021 - 22

Answers to questions
department | on the floor
facing today's reliability
& maintenance
professionals
Reliability
Raises
Customer
Expectations
Dr. Klaus M. Blache
Univ. of Tennessee Reliability
and Maintainability Center
(RMC)
Q
A
What does
reliability mean?
The ASQ (American Society for
It depends on who you ask
and where you look. In Merriam-Webster,
it's defined as
1. the quality or state of being reliable
2. the extent to which an experiment,
test, or measuring procedure yields the
same results on repeated trials.
I was taught that you shouldn't define
a word by using the same word in the
defining sentence, but that's a discussion
for another day.
In psychological research, reliability
refers to the consistency of a research
study, survey, or repeatability of a measurement-related
test. In any quantitative
research you're looking for a consistent
measure of something. Your measurement
choice should produce similar
(reliable) results, even if conducted by
different individuals at different times.
Quality, Milwaukee, asq.org) defines
reliability as the probability that a product,
system, or service will adequately
perform its intended function for a specified
period or will operate in a defined
environment without failure. It can be
observed as probability of success, durability,
dependability, quality over time,
and availability to perform a function.
SMRP (Society for Maintenance &
Reliability Professionals, Atlanta, smrp.
org) defines reliability analysis as a
technique (with predictive tools) used
to estimate the life of an asset (product).
It's usually expressed in terms of hours
as mean time between failures (MTBF).
Reliability analysis of systems/assets
ensures delivery of good products or
services. Analysis helps to identify and
to avoid some catastrophic events due to
failure of component(s).
A commonly used textbook, (Practical
Reliability Engineering-5th edition,
P. O'Conner and A. Kleyner, Wiley
publication, 2012), states:
" The objectives of reliability engineering,
in decreasing order of priority,
are:
1. To apply engineering knowledge and
specialist techniques to prevent or reduce
the likelihood or frequency of failures.
2. To identify and correct the causes of
failures that do occur, despite the efforts
to prevent them.
3. To determine ways of coping with
failures that do occur if their causes
Improved reliability has raised the bar for
asset performance, what you produce, transportation
dependability, and product quality.
22 | EFFICIENTPLANTMAG.COM
OCTOBER 2021

Efficient Plant October 2021

Table of Contents for the Digital Edition of Efficient Plant October 2021

Efficient Plant October 2021 - Cover1
Efficient Plant October 2021 - Cover2
Efficient Plant October 2021 - 1
Efficient Plant October 2021 - 2
Efficient Plant October 2021 - 3
Efficient Plant October 2021 - 4
Efficient Plant October 2021 - 5
Efficient Plant October 2021 - 6
Efficient Plant October 2021 - 7
Efficient Plant October 2021 - 8
Efficient Plant October 2021 - 9
Efficient Plant October 2021 - 10
Efficient Plant October 2021 - 11
Efficient Plant October 2021 - 12
Efficient Plant October 2021 - 13
Efficient Plant October 2021 - 14
Efficient Plant October 2021 - 15
Efficient Plant October 2021 - 16
Efficient Plant October 2021 - 17
Efficient Plant October 2021 - 18
Efficient Plant October 2021 - 19
Efficient Plant October 2021 - 20
Efficient Plant October 2021 - 21
Efficient Plant October 2021 - 22
Efficient Plant October 2021 - 23
Efficient Plant October 2021 - 24
Efficient Plant October 2021 - 25
Efficient Plant October 2021 - 26
Efficient Plant October 2021 - 27
Efficient Plant October 2021 - 28
Efficient Plant October 2021 - 29
Efficient Plant October 2021 - 30
Efficient Plant October 2021 - 31
Efficient Plant October 2021 - 32
Efficient Plant October 2021 - Cover3
Efficient Plant October 2021 - Cover4
https://www.nxtbook.com/atp/MaintenanceTechnology/efficient-plant-april-2022
https://www.nxtbook.com/atp/MaintenanceTechnology/efficient-plant-october-2021
https://www.nxtbook.com/atp/MaintenanceTechnology/efficient-plant-june-2021
https://www.nxtbook.com/atp/MaintenanceTechnology/epapril2021
https://www.nxtbook.com/atp/MaintenanceTechnology/epmarch2021
https://www.nxtbook.com/atp/MaintenanceTechnology/epjanfeb2021
https://www.nxtbook.com/atp/MaintenanceTechnology/epjulyaug2020
https://www.nxtbook.com/atp/MaintenanceTechnology/epjune2020
https://www.nxtbook.com/atp/MaintenanceTechnology/epmay2020
https://www.nxtbook.com/atp/MaintenanceTechnology/epapril2020
https://www.nxtbook.com/atp/MaintenanceTechnology/epmarch2020
https://www.nxtbook.com/atp/MaintenanceTechnology/epfeb2020
https://www.nxtbook.com/atp/MaintenanceTechnology/epjan2019
https://www.nxtbook.com/atp/MaintenanceTechnology/epnovdec2019
https://www.nxtbook.com/atp/MaintenanceTechnology/epseptoct2019
https://www.nxtbook.com/atp/MaintenanceTechnology/epmay2019
https://www.nxtbook.com/atp/MaintenanceTechnology/epapril2019
https://www.nxtbook.com/atp/MaintenanceTechnology/epmarch2019
https://www.nxtbook.com/atp/MaintenanceTechnology/epfebruary2019
https://www.nxtbook.com/atp/MaintenanceTechnology/epjanuary2019
https://www.nxtbook.com/atp/MaintenanceTechnology/epdecember2018
https://www.nxtbook.com/atp/MaintenanceTechnology/epnovember2018
https://www.nxtbook.com/atp/MaintenanceTechnology/epoctober2018
https://www.nxtbook.com/atp/MaintenanceTechnology/epseptember2019
https://www.nxtbook.com/atp/MaintenanceTechnology/epaugust2018
https://www.nxtbook.com/atp/MaintenanceTechnology/0818schneider
https://www.nxtbook.com/atp/MaintenanceTechnology/epjuly2018
https://www.nxtbook.com/atp/MaintenanceTechnology/epjune2018
https://www.nxtbook.com/atp/MaintenanceTechnology/epmay2018
https://www.nxtbook.com/atp/MaintenanceTechnology/epapril2018
https://www.nxtbook.com/atp/MaintenanceTechnology/epmarch2018
https://www.nxtbook.com/atp/MaintenanceTechnology/epfebruary2018
https://www.nxtbook.com/atp/MaintenanceTechnology/epjanuary2018
https://www.nxtbook.com/atp/MaintenanceTechnology/epdecember2017
https://www.nxtbook.com/atp/MaintenanceTechnology/epnovember2017
https://www.nxtbook.com/atp/MaintenanceTechnology/epoctober2017
https://www.nxtbook.com/atp/MaintenanceTechnology/mtsept2017
https://www.nxtbook.com/atp/MaintenanceTechnology/mtaugust2017
https://www.nxtbook.com/atp/MaintenanceTechnology/mtjuly2017
https://www.nxtbook.com/atp/MaintenanceTechnology/mtjune2017
https://www.nxtbook.com/atp/MaintenanceTechnology/mtmay2017
https://www.nxtbook.com/atp/MaintenanceTechnology/mtapril2017
https://www.nxtbook.com/atp/MaintenanceTechnology/mtmarch2017
https://www.nxtbook.com/atp/MaintenanceTechnology/mtfebruary2017
https://www.nxtbook.com/atp/MaintenanceTechnology/mtjanuary2017
https://www.nxtbook.com/atp/MaintenanceTechnology/mtdecember2016
https://www.nxtbook.com/atp/MaintenanceTechnology/mtnovember2016
https://www.nxtbook.com/atp/MaintenanceTechnology/mtoctober2016
https://www.nxtbook.com/atp/MaintenanceTechnology/mtseptember2016
https://www.nxtbook.com/atp/MaintenanceTechnology/mtaugust2016
https://www.nxtbook.com/atp/MaintenanceTechnology/mtjuly2016
https://www.nxtbook.com/atp/MaintenanceTechnology/mtjune2016
https://www.nxtbook.com/atp/MaintenanceTechnology/mtmay2016
https://www.nxtbook.com/atp/MaintenanceTechnology/mtapril2016
https://www.nxtbook.com/atp/MaintenanceTechnology/mtmarch2016
https://www.nxtbook.com/atp/MaintenanceTechnology/mtfebruary2016
https://www.nxtbook.com/atp/MaintenanceTechnology/mtjanuary2016
https://www.nxtbook.com/atp/MaintenanceTechnology/mtdecember2015
https://www.nxtbook.com/atp/MaintenanceTechnology/mtnovember2015
https://www.nxtbook.com/atp/MaintenanceTechnology/mtoctober2015
https://www.nxtbook.com/atp/MaintenanceTechnology/mtseptember2015
https://www.nxtbook.com/atp/MaintenanceTechnology/MTAugust2015
https://www.nxtbook.com/atp/MaintenanceTechnology/MTJuly2015
https://www.nxtbook.com/atp/MaintenanceTechnology/MTJune2015
https://www.nxtbook.com/atp/MaintenanceTechnology/M
https://www.nxtbook.com/atp/MaintenanceTechnology/0415endress
https://www.nxtbook.com/atp/MaintenanceTechnology/MTApril2015
https://www.nxtbook.com/atp/MaintenanceTechnology/MTMarch2015
https://www.nxtbook.com/atp/MaintenanceTechnology/MTFebruary2015
https://www.nxtbook.com/atp/MaintenanceTechnology/MTJanuary2015
https://www.nxtbook.com/atp/MaintenanceTechnology/MTDecember2014
https://www.nxtbook.com/atp/MaintenanceTechnology/MTNovember2014
https://www.nxtbook.com/atp/MaintenanceTechnology/MTOctober2014
https://www.nxtbook.com/atp/MaintenanceTechnology/MTSeptember2014
https://www.nxtbook.com/atp/MaintenanceTechnology/MTAugust2014
https://www.nxtbook.com/atp/MaintenanceTechnology/MTJuly2014
https://www.nxtbookmedia.com