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| In this
issue: |
Issue
27, May 2003 |
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Reliability HotWire is a service of ReliaSoft
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| Hot Topics |
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Using Reliability Block
Diagrams to Analyze Dependent and Independent Failure Modes
When thinking of a
reliability block diagram (RBD), the application that most often comes to
mind is the analysis of a system based on the component reliabilities. You
can also use the same methodology for a single component and its
associated failure modes. In analyzing this scenario, both
independent (i.e. if one mode occurs, the rest are not more likely to
occur) and dependent modes (i.e. if one mode occurs, the rest are more
likely to occur) can be included. To illustrate this, a component with
multiple primary modes as well as multiple secondary modes (sub-modes)
will be considered. In addition, both independence and dependence will be
utilized.
To
read more, see http://www.weibull.com/hotwire/issue27/hottopics27.htm
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| Reliability
Basics |
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Throughput Analysis (Part I)
Throughput analysis allows you to analyze a reliability block diagram
(RBD) such that each component within the system is designed to process
(make) something while it is in operation. Part I of this article will introduce some throughput metrics and terminology. In addition, some
basic analysis using throughput and how this can be accomplished in BlockSim
6 will also be discussed. Part II will be
presented in next month's issue of the HotWire and will explore more
complex scenarios regarding throughput analysis.
To read more, see http://www.weibull.com/hotwire/issue27/relbasics27.htm
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| Tool
Tips |
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-
In Xfmea, how can I quickly edit the records in the FMEA
Hierachy without having to open and close the properties window for
each record?
-
What is the purpose of Xfmea's Check Analysis utility?
To read more, see http://www.weibull.com/hotwire/issue27/tooltips27.htm
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Latest
Software Updates |
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Xfmea
(1.0.1) has now been released. In addition, new service
releases for BlockSim (SR
6.0.6) and MPC (SR 3.0.8)
are also available. To determine the compile revision of the
application on your computer, from the Help menu select About.
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| Hot
News |
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Xfmea
was officially released on April 30th!!! - Now available
for purchase and evaluation, Xfmea has been designed to facilitate
the FMEA/FMECA process and provide flexible data management and
reporting capabilities. Pre-release orders have been filled. For
more information, please visit our Website at http://Xfmea.ReliaSoft.com
or contact the sales team directly at +1.888.886.0410 or
Sales@ReliaSoft.com.
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ReliaSoft's
Consultants Meet a Variety of Needs - You all know
ReliaSoft as a world class developer of reliability analysis tools.
We also have an expert team of consultants who are ready to
assist you in the areas of quality and reliability engineering.
ReliaSoft consultants can provide expertise in any of the following
areas:
- Complete
Reliability Program Development
- Test and
Experiment Design
- Data Analysis
and Reporting
- Developing,
Evaluating and Communicating Reliability Requirements
- Equipment
Reliability, Maintainability and Availability Assessment
- Theoretical
Development
We realize that under
today's economic conditions, company reliability resources are
stretched to the limit and that you may not have the time to take on another
project. Whether you have a large project you can't find time for
or merely need another set of eyes to review your analysis or
report, please consider giving us a call. We would be happy to
discuss your requirements and promptly provide you with a cost and
time estimate for completion of the project. Consultant biographies and
client lists are available at http://www.ReliaSoft.com/rsps.
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Special
Thanks to the Quality Expo International Attendees - We
enjoyed the attention we received at our booth a few weeks ago in
Chicago, especially your spirited interest in Xfmea. Thank you for
stopping by to visit with us, checking out the software and
gathering information related to our various products and services.
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UK
Company Utilizes ReliaSoft Tools for Public Training -
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 May 20 - 22, 2003
utilizing ReliaSoft's BlockSim 6 and Weibull++ 6 software.
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Training
Around the World - Check for ReliaSoft training
that is available within your region of the world by using our International
Seminar Locator.
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Calendar
of Public Events:
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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. This
symposium features experts and
practitioners from both academia and industry and 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 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 ReliaSoft will be
providing training classes for GM employees at the General
Motors Knowledge Center in Warren, Michigan once again. Life Data
Analysis and Accelerated Life Testing Data Analysis will be the
primary topics. Course dates are June 2 - 5, 2003.
For more information please contact Dennis Walters, GM
Training Coordinator, at +1.248.684.3579. Class size is
limited. GM suppliers should check with GM for class
availability. |
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| From
the Edge |
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In addition to the
monthly Reliability HotWire, ReliaSoft publishes Reliability
Edge, a printed journal that includes articles and information
related to the field of reliability engineering. Articles of interest in
the current edition:
-
Graphical
Analysis of Repair Data
-
This article
presents a simple and informative plot for analyzing data on numbers
or costs of repeated repairs of a sample of products. The plotting
method provides a nonparametric graphical estimate of the mean
cumulative number or cost of repairs per unit versus age. This
article presents the basic population model for such repeated events
data and its mean cumulative function (MCF). Using a typical data
set for repair data (transmission repair data from cars on a
preproduction road test), this article shows how to calculate and
plot a sample estimate of the MCF for data from products with a mix
of ages. This is followed by an explanation of how to use and
interpret such plots. See http://www.ReliaSoft.com/newsletter/4q2002/repair_data.htm.
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Developing
a Reliability Benchmark Survey
- The
University of Warwick (United Kingdom) is currently conducting a
detailed and far-reaching survey of reliability practices, the
"Benchmark Survey of Timely and Cost- Effective Application of
Reliability Techniques." Companies world-wide and across all
industries are called upon to participate. The survey has been
designed to investigate the contextual factors that lead a project
to choose specific reliability techniques. It attempts to benchmark
reliability activity according to the speed that reliability
techniques deliver useful output, the quantity and
cost-effectiveness of that output, its authority and accuracy and
the uses to which the output contributes.
See http://www.ReliaSoft.com/newsletter/4q2002/benchmark.htm.
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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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