In this issue: Issue 126, August 2011
*Hot Topics
*Reliability Basics
*Tool Tips
*Hot News
*Contribute to HotWire

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Hot Topics
Determining the Sample Size for a Life Test Based on the Shape Parameter of the Weibull Distribution
The Weibull distribution is one of the most important distributions in life data analysis. The value of its shape parameter (beta) influences the failure rate behavior; therefore, reliability engineers are often interested in designing life tests that can accurately estimate the value of beta. In this article, we will use SimuMatic®, a simulation tool in Weibull++, to study the property of the shape parameter when estimated using the maximum likelihood estimation (MLE) method. Based on the results of the simulation study, we will provide simple rules on how to determine the appropriate sample size for a life test according to an accuracy requirement for beta.

To read more, see http://www.weibull.com/hotwire/issue126/hottopics126.htm  Read more...

Reliability Basics
Reliability Centered Maintenance (RCM) - A Cost Saving Measure
Why do RCM? Why spend the time and money to buy software, assemble teams, do research, conduct meetings and chase action plans just to develop a maintenance plan when it is easier to see what fails and fix it? Running an operation with equipment producing or moving product is often hectic and manned by a hands-on workforce that prefers the action of today’s operations to the monotony of a conference room. But RCM is more than just speculating what might go wrong and developing a contingency plan. It reduces the cost of running business and provides opportunities for a much more efficient operation with improved productivity. If we can understand the details of what goes wrong, how it goes wrong, how likely it is, how bad it is and what it costs the business, we are more likely to make better decisions. This article discusses the rationale for performing RCM and how it leads to cost savings for production operations.

To read more, see http://www.weibull.com/hotwire/issue126/relbasics126.htm  Read more...

Tool Tips
  • When my ALTA analysis considers more than one stress type, how do I choose which stress will be varied in the Life vs. Stress plot?
  • I’m new to reliability analysis. How can I get information on the basic concepts and what ReliaSoft’s software is for?

To read more, see http://www.weibull.com/hotwire/issue126/tooltips126.htm  Read more...

Hot News
* Deadline to Submit 2012 ARS Europe Presentation Proposals - The Applied Reliability Symposium comes to Europe only once a year — do not miss your opportunity to be a presenter in Warsaw, Poland in March 2012! The ARS Europe proposal submission deadline is October 14th, 2011. Presentation topics should be based on practical reliability and quality engineering practices derived from real-life experience. The primary author for each presentation delivered at the Symposium will receive complimentary registration to the event and the opportunity to win one of the Excellent Presentation Awards. For additional information and to download the submission form, please visit http://www.ARSymposium.org/europe/presenters/index.htm
* ReliaSoft at SMRP's Annual Conference- ReliaSoft staff will be in attendance at the Society for Maintenance and Reliability Professionals (SMRP) Annual Conference on October 17-20, 2011 in Greensboro, North Carolina, USA. We enjoyed presenting at and attending last year's event. This year we will be hosting a booth and look forward to seeing past friends, while making acquaintances with new professionals. When you get a chance, please stop by our booth. We have some new software features to show you related to asset management supported by reliability engineering. If you are not familiar with the SMRP Annual Conference, you can learn more at: http://www.smrp.org/
* Practical Facilitation Makes Appropriate FMEAs Possible - Many engineers find it challenging to keep FMEA meetings on track and rapidly moving forward when they get a group of professionals together. Next month, ReliaSoft will be holding an FMEA facilitation class that uses case study examples to enable attendees to practice FMEA facilitation and application skills. The RS 471 class will be taught by Mr. Carl Carlson, an experienced FMEA facilitator and instructor who received the Alan O. Plait award for Tutorial Excellence at the 2008 Annual Reliability and Maintainability Symposium (RAMS) for his tutorial on "Lessons Learned for Effective FMEAs." The class will be held in Tucson, Arizona on September 19 - 23, 2011. More details are available at: http://www.ReliaSoft.com/seminars/effective_fmea.htm
Upcoming Public Training Event Calendar
August 2011
August 16 - 18, 2011: RS 560 Fundamentals of Design for Reliability in San Diego, California
August 22 - 26, 2011: RS 540 Reliability and Maintainability Analysis for Repairable Systems in Singapore
August 22 - 26, 2011: MSMT Foundations in San Diego, California
September 2011
September 13 - 15, 2011: RS 521 Advanced Accelerated Life Testing Analysis in Bordeaux, France
September 19 - 21, 2011: RS 480 RCM Principles and Applications in Jakarta, Indonesia
September 19 - 23, 2011: MSMT Foundations in Warsaw, Poland
September 19 - 23, 2011: Effective FMEA Series (RS 470 & RS 471) in Tucson, Arizona
September 20 - 22, 2011: RS 522 Advanced System Reliability / Maintainability Analysis in Tucson, Arizona
October 2011
October 3 - 7, 2011: RS 540 Reliability and Maintainability Analysis for Repairable Systems in Larnaca, Cyprus
October 11 - 13, 2011: RS 560 Fundamentals of Design for Reliability in Berlin, Germany
October 12 - 14, 2011: International Applied Reliability Symposium in Bangalore, India
October 19 - 21, 2011: International Applied Reliability Symposium in Singapore
October 24 - 28, 2011: MSMT Foundations in Tucson, Arizona
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.
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