| In
this issue: |
Issue 87,
May
2008
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Reliability HotWire is a
service of ReliaSoft Corporation
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Hot Topics
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How to Define a Complicated Stress Profile
In accelerated life tests, constant and step
stresses are commonly used. It is not difficult to get the profile functions
for them because of their simplicity. However, in some applications, the
stress profile is very complicated. Obtaining the function for such a profile
is not a simple task. In this article, we will discuss how to use
Weibull++
and ALTA to define a complicated profile function. Parabolic functions
are used as an
example. However, the method described is a general one and can be extended
to any stress profile function.To read more, see
http://www.weibull.com/hotwire/issue87/hottopics87.htm
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Reliability
Basics |
Residual Plots for Lifetime Distributions
Residual plots are widely used in linear regression analyses. By
examining the pattern of residual plots, one can identify if
there are additional variables that should be included in the
regression model. Residual plots also can help analysts find
outliers in the data set. More often, residual plots are used to
diagnose if a model or a distribution can fit the data well.
In this article, we will use
DOE++ to illustrate
the usefulness of residual plots in life data analysis. Only
DOE++ offers Reliability DOE, which is specifically intended
to handle life data obtained from designed experiments, either
with or without censoring, and allows you to use the Weibull,
lognormal or exponential distribution to analyze data.To read more, see
http://www.weibull.com/hotwire/issue87/relbasics87.htm
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Tool Tips |
- How can I exclude effects from my
DOE++ analysis?
- How can I display probability scales on the probability plots in
Weibull++ 7?
To read more, see
http://www.weibull.com/hotwire/issue87/tooltips87.htm
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Latest Software Updates |
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New service releases are now available
for Xfmea Standard
(SR 4.0.5),
Xfmea
Enterprise (SR 4.0.5) and
RCM++ (SR 4.0.5). To determine the compile revision of the application
on your computer, select About from the Help menu.
More Software Downloads...
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Hot News |
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ARS North
America 2008
– Do you want to learn how to make
reliability engineering a cost-competitive advantage for
world class quality? If you answered "yes," then you
will benefit from
Mr. Allan Rae's keynote address at the upcoming
International Applied Reliability Symposium at the
Grand Sierra Resort in Reno, Nevada from
June 17-20, 2008. This year's variety of topics will
focus on sharing applications, success stories and
lessons learned in reliability and maintainability
engineering. To register online, please visit
http://www.ARSymposium.org/register.htm. Remember to
reserve your hotel room by May 18, 2008 in order to
qualify for the negotiated Symposium rate for the Grand
Sierra Resort (see
http://www.ARSymposium.org/2008/ars2008_location.htm
for more details). |
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CRE
Exam Prior to ARS
- We are pleased to announce that the American Society
for Quality (ASQ) will administer the Certified
Reliability Engineer (CRE) Exam on Monday, June
16, 2008 from 2:00 PM to 6:00 PM at the
Grand Sierra Resort in Reno, Nevada. The application
form is available from the ASQ Web site at
https://secure.asq.org/certification/2008-cre-application-ars.html.
Hurry! The application deadline is May 16th! |
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MIL-STD-217 Revision Questionnaire - The
Defense Standardization Program Office (DSPO) has tasked
the Crane Division of the Naval Surface Warfare Center
(NSWC) with executing a revision of MIL-HDBK-217,
which is used for the Reliability Prediction of
Electronic Equipment. In order to achieve the best
possible results, Crane has established a Web page to
solicit input from the reliability community. If you
are interested in obtaining additional information,
submitting comments or participating in the revision of
MIL-HDBK-217, please refer to the questionnaire posted
at
http://www.crane.navy.mil/sd18/ReliabilityFeedback.htm.
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RCM Training Seminar -
RS 480 Introduction to RCM Principles and Applications
is a two-day training course that will help you understand why
Reliability Centered Maintenance (RCM) is so critical for
optimizing your maintenance strategy and the
benefits that can be achieved in terms of safety, cost
and performance. To
register on-line for the next available seminar on
June 5-6, 2008, please visit our Web site at
https://store.reliasoft.com/store/product.php?productid=21&cat=16&page=1.
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Upcoming
Public Training Event Calendar |
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May 2008 |
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May 12 - 14, 2008:
RS 522 Advanced System
Analysis
in
Manchester, UK |
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May 14 - 16, 2008:
RS 521 Advanced QALT
in
Tucson, Arizona |
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May 14 - 16, 2008:
RS 511 Adv. Reliability
Growth Analysis
in
Tucson, Arizona |
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May 15 - 16, 2008:
RS 470 FMEA/FMECA
in
Manchester, UK |
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June 2008 |
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June 30 - July 4, 2008:
RS 540 Reliability and
Maintainability Analysis for Repairable
Systems
in
Singapore |
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June 5 - 6, 2008:
RS 480 Reliability
Centered Maintenance
in
Tucson, Arizona |
|
June 9 - 13, 2008:
MSMT Foundations
in
Turin, Italy |
|
June 11 - 13, 2008:
RS 560 Introduction to
Design for Reliability
in
Bangalore, India |
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June 17 - 20, 2008:
International Applied
Reliability Symposium
in
Reno, Nevada |
|
July 2008 |
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July 10 - 11, 2008:
RS 401(C) Life Data
Analysis (Condensed)
in
Pune, India |
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July 14 - 18, 2008:
RS 540 Reliability and
Maintainability Analysis for Repairable
Systems
in
Tucson, Arizona |
|
July 28 - August 1, 2008:
RS 540 Reliability and
Maintainability Analysis for Repairable
Systems
in
Melbourne, Australia |
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Contribute
to HotWire |
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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