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In this issue: |
Issue 24, February 2003 |
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Reliability HotWire is a service
of ReliaSoft Corporation
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Hot Topics |
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Imperfect Repair
In many cases, at the
conclusion of a repair, preventive maintenance action or inspection for
a component, it is assumed that the component is returned to an as good
as new condition (or replacement). This means that the age of the
component is returned to time equals zero. However, this may not always
be the case. In fact, the age of the component after the repair may be a
percentage of its age at the time when the repair took place.
BlockSim 6 allows you to specify a restoration factor, which is used
to determine the age of the component once the maintenance action has
been completed. This article will explore the concept of the restoration
factor and how it can be applied within BlockSim.
To read more, see
http://www.weibull.com/hotwire/issue24/hottopics24.htm
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Reliability Basics |
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Design of Reliability Tests
In a past issue of the
Reliability Edge (see
Cumulative Binomial for Test Design and Analysis), an article was
presented on the cumulative binomial distribution and how it can be
applied towards test design. Given a specified reliability at a certain
time along with a desired confidence level, the required test units
(given test time) can be determined to meet the required goal.
Calculating the required number of test units is fairly straightforward
if the test time is equal to the time at the reliability goal. If this
is not the case, then a failure distribution needs to be assumed so that
the calculations can be completed. This article presents how this
failure distribution can be applied to generate the results using
Weibull++
and illustrates the concept of allowable failures.
To read more, see
http://www.weibull.com/hotwire/issue24/relbasics24.htm
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Tool Tips |
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How can I specify which icons are visible on the Data Folio Control
Panel in Weibull++?
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Since temperature values must be entered into ALTA in absolute
scale, is there a way to automatically convert temperature values in
the Data Folio that are in Celsius and Fahrenheit to Kelvin or
Rankine?
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How can I find out about ReliaSoft's software validation and QA
practices?
To read more, see
http://www.weibull.com/hotwire/issue24/tooltips24.htm
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Hot News |
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Announcing Special Pre-Release Pricing on Xfmea - Xfmea
is scheduled for release in late March 2003 and will retail for
$1995. When you order Xfmea before the official product release, you
will receive a $400 discount off of the standard price! Xfmea has
been designed to facilitate the FMEA/FMECA process and provide
flexible data management and reporting capabilities. Xfmea supports
major industry standards (SAE J1739, AIAG FMEA-3, SAE ARP5580 and
MIL-STD-1629A) and guidelines (ISO 9000, QS 9000, ISO/TS 16949 and
Six Sigma), while also allowing users to configure the software to
the company's specific analysis and reporting procedures. For more
information, please visit:
http://XFMEA.ReliaSoft.com.
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ReliaSoft at RAMS - Thanks to everyone who stopped by our
booth at the 49th Annual Reliability and Maintainability
Symposium (RAMS)
last month. It was great seeing our old friends and fun making new
ones. We look forward to hearing more from you over the course of
the year!
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Calendar of Public Events:
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February |
Master the Subject, Master the Tools Training Seminar
for life data analysis, accelerated life data analysis and
system reliability analysis: February 24 - 28, 2003
in Tucson, AZ. For more information, see
http://Seminars.ReliaSoft.com/master.htm.
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March |
National Manufacturing Week 2003 - ReliaSoft will be
in Chicago, IL March 3 - 6, 2003 to participate in
the National Manufacturing Week 2003 show. ReliaSoft will
have a booth in the exhibition hall where you can get
information and demonstrations of ReliaSoft's products and
services. For more details on this event, please visit
http://www.manufacturingweek.com
(register by February 17th for free admission to the
exhibits).
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San Diego - Accelerated Testing Training - ReliaSoft
will again teach the RAC's Accelerated Testing Training
Course on March 4 - 6, 2003 in San Diego, CA. Topics
for this course include accelerated life testing and how it
is applied, overview of stress loading models and analysis,
applicable life-stress relationship models and predicting
reliabilities, warranty times and MTTFs (MTBFs) using
accelerated life data. For more information on course
content and how to register, contact RAC at 1.888.RAC.USER
or +1.315.337.0900.
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Advanced System Analysis and BlockSim Training Seminar
- March 24 - 26, 2003 in Tucson, AZ. An intensive
theoretical and hands-on course (utilizing
BlockSim) which exposes the attendee to the advanced
concepts, principles and requirements for performing
detailed system reliability, maintainability, availability
and related analyses. For more information, see
http://www.reliasoft.com/seminars/gencourses/rs522.htm. |
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Failure Modes, Effects and Criticality Analysis Training
Seminar - March 27 - 28, 2003 in Tucson, AZ.
This course offers an overview of FMEA/FMECA analysis
procedures with emphasis on the use of the
Xfmea
software. For more information, see
http://www.reliasoft.com/seminars/gencourses/rs470.htm. |
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April |
Quality Expo International 2003 - On April 15 -
17, 2003, ReliaSoft will be in Chicago, IL once again to
perform demonstrations and provide information on
ReliaSoft's variety of products and services. Please visit
the following link for more information on the show:
http://quality.reedexpo.com.
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QALT Boot Camp Training Seminar - April 30 - May
2, 2003 in Tucson, AZ. This intensive three day course
covers advanced topics, concepts and applications of
quantitative accelerated life testing (QALT) analysis and
ReliaSoft's ALTA PRO software. For more information, see
http://www.reliasoft.com/seminars/gencourses/rs521.htm. |
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May |
Rio de Janeiro International Reliability Symposium -
During this symposium, held May 8 - 9, 2003 in Rio de
Janeiro, Brazil, engineers will be examining current
reliability practices, issues and applications through
lectures and discussions - featuring experts and
practitioners from both academia and industry. This
symposium is sponsored by
ReliaSoft Brasil.
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Contribute to HotWire
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Contributions
Welcomed
As always, your feedback and contributions are appreciated.
ReliaSoft is able to provide the most user-friendly reliability software
packages and support because we listen to our customers. This applies to
our newsletters and publications as well. We welcome any suggestions or
contributions you may have for Reliability HotWire. If you have a
topic or article that you think would be useful to the readers of
Reliability HotWire, feel free to contact us. We can be reached by
e-mail at HotWire@ReliaSoft.com,
or by standard mail at 1450 S. Eastside Loop, Tucson, AZ 85710-6703,
USA.
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Copyright 2003
ReliaSoft Corporation, ALL RIGHTS RESERVED
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