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| In this
issue: |
Issue
26, April 2003 |
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Reliability HotWire is a service of ReliaSoft
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| Hot Topics |
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ReliaSoft's Alternate
Ranking Method
When analyzing interval data, it is commonplace to assume that the actual failure time occurred at the midpoint of
the interval. To be more conservative, you can
use the starting point of the interval or you can use the end point of the interval to be most optimistic. Weibull++
allows you to employ ReliaSoft's ranking method (RRM) when analyzing interval data.
Using
an iterative process, this ranking method is an improvement over the standard ranking method (SRM).
This article presents
an example using the two-parameter Weibull distribution to illustrate how this method is employed. This method can also be easily generalized for additional models.
To
read more, see http://www.weibull.com/hotwire/issue26/hottopics26.htm
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| Reliability
Basics |
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Relationship Between Availability and Reliability
Availability is
defined as the probability that the system is operating properly when it is
requested for use. In other words, availability is the probability that a system is not failed
or undergoing a repair action when it needs to be used. At first glance, it
might seem that if a system has a high availability then it should also have a
high reliability. However, this is not necessarily the case. This article will
explore the relationship between availability and reliability and will also
present some of the specified classifications of availability.
To read more, see http://www.weibull.com/hotwire/issue26/relbasics26.htm
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| Tool
Tips |
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Where can I obtain information regarding ReliaSoft's free software tools?
-
When conducting analysis using the General Log-Linear life-stress
relationship in ALTA 6, how do I specify the stress relation for each
selected stress column?
To read more, see http://www.weibull.com/hotwire/issue26/tooltips26.htm
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| Latest
Software Updates |
| Updates for Weibull++, Weibull++
MT, ALTA and BlockSim have been released recently. To determine the compile revision of
the application on your computer, select About from the Help
menu.
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| Hot
News |
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ReliaSoft
Corporation Celebrates our 10th Year Anniversary - On
April 30th, 1993 Pantelis Vassiliou, ReliaSoft's President and
CEO, compiled his Weibull++ software. Today, ReliaSoft Corporation
is the industry leader in reliability engineering R&D, software
and services that combine the latest theoretical advances with
essential tools for the practitioner in the field. Mr. Vassiliou
shares his personal "Ten
Year Retrospective."
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Xfmea
is scheduled for release in April ($1995) - While
there is time, you can still order Xfmea before the official product
release date for a discounted price of $1595! This software has been
designed to facilitate the FMEA/FMECA process and provide flexible
data management and reporting capabilities. For more information,
please visit: http://XFMEA.ReliaSoft.com.
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ReliaSoft's
New Agreement with Maintain-IT - ReliaSoft is pleased
announce a new international sales/support agreement with
Maintain-IT. Maintain-IT is a UK-based company that offers
consultancy support in many areas of maintenance management,
primarily to oil and gas, chemicals, beverage and manufacturing
industries worldwide. Maintain-IT will host their Practical
Reliability Workshop on May 19 - 23, 2003, which utilizes ReliaSoft's BlockSim 6 and Weibull++ 6 software.
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New
Free Tool at Weibull.com - ReliaSoft's RDA Utility for
recurrent-events data analysis and plotting has been added to the free software tools on our Reliability Resources Web site, www.weibull.com.
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Special
Thanks to the American Trucking Association - We enjoyed
presenting at the 2003 Annual Meeting and Transportation
Technology Exhibition last month in Ft. Lauderdale, FL. Thanks to
everyone who received us so warmly.
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Training
Around the World - Check for ReliaSoft Training
within your region of the world by using our International
Seminar Locator.
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Calendar
of Public Events:
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April |
Quality
Expo International 2003 - ReliaSoft will be in
Chicago, IL April 15 - 17, 2003 to participate in
this annual trade show geared towards manufacturing and
quality professionals. ReliaSoft will be at booth 18062 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.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://Seminars.ReliaSoft.com/gencourses/rs521.htm.
Remember that registered users of the ALTA PRO software can
attend this seminar at no cost. |
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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. View symposium details at
http://Seminars.ReliaSoft.com. |
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Master
the Subject, Master the Tools Training Seminar
for life data analysis, accelerated life data analysis and
system reliability analysis: May 19 - 23, 2003 in
Tucson, AZ. For more information, see http://Seminars.ReliaSoft.com/master.htm. |
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June |
Reliability
Training Courses at the GM Knowledge Center - We
are pleased to announce that once again ReliaSoft will be
providing training classes for GM employees at the General
Motors Knowledge Center in Warren, Michigan. Life Data
Analysis and Accelerated Life Test Analysis will be the
primary topics. Course dates are June 2 - 5, 2003.
For more information, please contact Dennis Walters, GM
Training Coordinator, at 248-684-3579. Class size is
limited. GM suppliers should check with GM for class
availability. |
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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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