| In
this issue: |
Issue 83, January
2008
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Reliability HotWire is a
service of ReliaSoft Corporation
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Hot Topics
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Life Data Analysis with Zero-Time
(Out-Of-The-Box) Failures
In many circumstances, it is possible for
failures to occur immediately at the beginning of the life of the product.
These failures are sometimes referred to as out-of-the-box or short-term
failures and might be attributed to problems in manufacturing, insufficient quality control and pre-shipping inspection, poor packaging or shipping
damages. The failure times for such units are zero. Zero values can also be found in a variety of other data set
types, such as level crossings
in customer usage measurement
programs (measurement of a number of events) or time in band (measurement of time spent in a given
state). This article examines
the effect of the zero values on data analysis and presents a warranty data
analysis example containing out-of-the-box failures data using
Weibull++ 7. To read more, see
http://www.weibull.com/hotwire/issue83/hottopics83.htm
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Reliability
Basics |
Analyzing Growth Success/Failure and
Reliability Data Using the Lloyd Lipow Model
This continues the series of articles, initiated with the
Reliability Basics article in Issue 81 of Reliability HotWire, discussing success/failure data in
the context of developmental testing reliability growth analysis. In this month's article, we continue the
discussion by highlighting the Lloyd Lipow model, available in
RGA 6, and show its application
to model success/failure data as well as data sets that consist of reliability
values at different times or stages.
To read more, see
http://www.weibull.com/hotwire/issue83/relbasics83.htm
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Tool Tips |
- How can I use Stress
Profiles in ALTA 7 PRO’s Monte Carlo and SimuMatic
utilities?
- Why don’t my results
exactly match the ones in the BlockSim and RENO
training guides, even when I use a "seed" for the simulation?
To read more, see
http://www.weibull.com/hotwire/issue83/tooltips83.htm
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Latest Software Updates |
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New service releases are now available
for Weibull++
(SR 7.5.3) and ALTA (SR
7.5.3). 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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Additional Track Added to 2008 ARS, North America -
ReliaSoft received so many excellent presenter
submissions this year that we needed to add a third
track to ARS, North America! The full presentation
program, which consists of 39 results-oriented
presentations and 6 expert tutorials, is posted on the
Web now. The
2008 International Applied Reliability Symposium, North
America will be held June 18 - 20, 2008
in Reno, Nevada. More information about the event
can be found at
www.ARSymposium.org. |
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Recent publications and presentations by ReliaSoft's Dr.
Huairui (Harry) Guo - ReliaSoft Corporation
is proud to recognize the following accomplishments:
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Publication
Title: |
2007 IEEE
International Conference on Industrial
Engineering and Engineering Management |
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Article Title: |
D-Optimal
Reliability Test Design for Two-Stress
Accelerated Life Tests |
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Author(s): |
Huairui Guo
and Rong Pan |
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For more
information, please see:
www.ieem2007.org/doc/IEEM%20Program.pdf
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Publication
Title: |
Journal of the
IEST |
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Article Title: |
Accelerated
Life Test Modeling of Outdoor Optical
Products with Time-Varying Multi-Stresses |
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Author(s): |
Chung Lam and
Huairui Guo |
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For more
information, please see:
www.iest.org
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Publication
Title: |
2007 INFORMS
Annual Conference |
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Article Title: |
Optimal Design
of Reliability Tests for Multiple Stresses |
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Author(s): |
Rong Pan and Huairui Guo |
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For more
information, please see:
http://meetings.informs.org/Seattle07/images/Program%20pdfs/No%20Rooms%20(S).pdf
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54th Annual Reliability &
Maintainability Symposium (RAMS) -
ReliaSoft Corporation will be a participant and
presenter at RAMS again this winter. The
event will be held at the Palace Station Hotel &
Casino in Las Vegas, Nevada on January
28-31, 2008. This year's Symposium theme: "Dawn to
Dusk - Life Cycle Prescriptions." RAMS participants are
exposed to a wide variety of papers, tutorials, and
panel discussions that share the insight of industry and
government leaders. Our staff of reliability experts
will be on hand to provide information and demonstrate
the capabilities of ReliaSoft's complete suite of tools,
including our Web-based XFRACAS application. We always
look forward to seeing our old friends and making new
ones; please be sure to stop by our booth! For more
information and an advanced program, see
http://www.rams.org. |
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Free Reliability Engineering Resources - Who
said nothing in life is free? ReliaSoft provides the
reliability engineering community with the most
comprehensive set of reliability-related information available at one site
on the Internet. Items that can be found in the volumes
of data in the www.weibull.com library include
utilities, research papers, example files, templates and
other related materials. While you’re there, don’t forget
to check the link to the discussion board
(www.reliability-discussion.com), where you can benefit
from suggestions about solving both simple and complex
problems. |
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Upcoming
Public Training Event Calendar |
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January 2008 |
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January 24 - 25, 2008:
RS 401(C) Life Data
Analysis (Condensed)
in
Bangalore, India |
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February 2008 |
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February 4 - 8, 2008:
MSMT Foundations
in
Frankfurt, Germany |
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February 20 - 22, 2008:
RS 560 Introduction to
Design for Reliability
in
Tucson, Arizona |
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February 25 - 29, 2008:
MSMT Foundations
in
Tucson, Arizona |
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March 2008 |
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March 10 - 14, 2008:
MSMT Foundations
in
Singapore |
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March 17 - 19, 2008:
RS 522 Advanced System
Analysis
in
Tucson, Arizona |
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March 20 - 21, 2008:
RS 470 FMEA/FMECA
in
Tucson, Arizona |
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March 26 - 28, 2008:
International Applied
Reliability Symposium
in
Frankfurt, Germany |
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March 31 - April 2, 2008:
RS 521 Advanced QALT
in
Frankfurt, Germany |
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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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Copyright © 2008 ReliaSoft Corporation,
ALL RIGHTS RESERVED
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