In this issue: Issue 113, July 2010
*Hot Topics
*Reliability Basics
*Tool Tips
*Latest Software Updates
*Hot News
*Contribute to HotWire

Reliability HotWire is a service of ReliaSoft Corporation

To subscribe or update your e-mail preferences, go to
Hot Topics
Optimum Maintenance Intervals in RCM++

Preventive maintenance can yield significant cost benefits by increasing the availability of a system and reducing the total maintenance costs. The question of how often the task should be performed, however, is important to raise. If the preventive maintenance interval is too short, then the maintenance costs associated with preventive maintenance can be too high. If, on the other hand, the interval is too long, then the costs associated with corrective maintenance can be too high. RCM++ provides calculations to help determine the optimum maintenance interval, based on the probability of occurrence of a failure event and the costs of performing different types of maintenance. In this article we will provide the theory behind this utility and give an example that illustrates its application in the software. 

To read more, see 

Reliability Basics
Determining Significant Effects in 2k Designs with a Single Replicate

Design of Experiments (DOE) is a systematic approach to experimentation that is used to investigate how various inputs (or factors) affect an output (or response) of interest. One of the useful results of the statistical analysis performed in a DOE is whether an investigated factor's effect on the response is significant. In order to do that, replicated runs are required. That means that all the combinations of factor levels (treatments) should be performed more than once. However, in many experiments running replicates of an experiment is not feasible due to a lack of time or resources. In this article we will present three methodologies that can be applied in the case of 2k designs (where each factor has only two levels) to allow us to test for the significance of an effect without replicated runs.

To read more, see 

Tool Tips
  • Can I use the same system configuration in multiple places in Lambda Predict 3?
  • How can I change the login security option for a Standard Database in Xfmea 5 or RCM++ 5?

To read more, see 

Latest Software Updates
New service releases are now available for RGA (SR 7.5.1) and BlockSim (SR 7.0.12). To determine the compile revision of the application on your computer, select About from the Help menu. More Software Downloads...
Application Date Created Version
RGA 7 6/14/10 7.5.1
BlockSim 7 6/30/10 7.0.12
Hot News

Congratulations to the 2010 ARS Excellent Presentation Award Winners! - Each year, engineers strive to present at one of the Applied Reliability Symposium (ARS) events held five times a year at locations around the world. One of the coveted goals for many presenters is achieving an excellent presentation award. The winners are selected based on votes cast by the symposium attendees. Here are the winners from recent events in Europe and North America :

Berlin, Germany

  • Martin Shaw (Gold Award - €500) from Reliability Solutions for his presentation, LCD TV Reliability Testing: An Effective Approach
  • Horst Lewitschnig (Silver Award - €375) from Infineon Technologies Austria AG for his presentation, Stress Interaction Model
  • David J. Hartshorne (Bronze Award - €250) from The New Science of Fixing Things Ltd. for his presentation, Identify and Fix Reliability Problems Missed by FMEA & Validation Testing Before Shipping

Reno, Nevada - United States

  • Harland MacKenzie (Gold Award - $1000) from Dana Thermal Products for his presentation, The Life-Stress Slope: The Key to Accelerated Life Testing
  • Romney B. Duffey (Silver Award - $750) from Atomic Energy of Canada for his presentation, High Reliability and Systemic Risk: Predicting Rare Events and Failures in Modern Technological Systems
  • Peder Andersson (Bronze Award - $500) from Tetra Pak for his presentation, The Reliability Sleuth – A Proposal for a Troubleshooting Process

More information is posted at

* 2010 ARS Proceedings - If you were unable to attend the ARS, Europe or ARS, North America events held earlier this year, you may be pleased to learn that the proceedings are available for purchase via the International Applied Reliability Symposium Web site. Proceedings are available in electronic or hard copy form; physical shipments include spiral bound books and a CD-ROM. Please visit or for more information.

RGA 7.5 Released - The ReliaSoft software developers occasionally find themselves with a long wish list of feature enhancements, thanks to your valuable feedback and our own internal research. While we make every effort to include the majority of features within the initial distribution of a major version release, occasionally extra time is needed to achieve completion. RGA 7.5 now contains an abundance of new items we have been wanting to share. Any engineer currently using RGA 7 is welcome to review the list of additions and download the latest service release for free. Please visit the following locations: and

Upcoming Public Training Event Calendar
August 2010
August 9 - 11, 2010: RS 480 RCM Principles and Applications in Chennai, India
August 23 - 27, 2010: RS 540 Reliability and Maintainability Analysis for Repairable Systems in Singapore
August 23 - 27, 2010: MSMT Foundations in San Diego, California
August 31 - September 2, 2010: RS 560 Fundamentals of Design for Reliability in San Diego, California
September 2010
September 1 - 3, 2010: RS 401 Reliability and Life Data Analysis in Singapore 
September 13 - 15, 2010: RS 521 Advanced Accelerated Life Testing Analysis in France
September 16 - 17, 2010: RS 401(C) Reliability and Life Data Analysis (Condensed) in Rayong, Thailand
September 20 - 24, 2010: Effective FMEA Series (RS 470 & RS 471) in Tucson, Arizona
September 21 - 23, 2010: RS 522 Advanced System Reliability / Maintainability Analysis in Tucson, Arizona
September 27 - October 1, 2010: MSMT Foundations in Barcelona, Spain
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.
Copyright ® 2010 ReliaSoft Corporation, ALL RIGHTS RESERVED.