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Using State Change Triggers to Model Dependent Events with Delay

In some systems, the components are not independent; instead, the status of one component depends on that of other components. Load sharing components and standby components are the two typical dependent components. In practical application, load sharing events typically do not involve any delay. When a component fails in a load sharing configuration, its load is automatically distributed to other working components immediately. However, for standby events or other kind of triggered events, a delay is very common in industrial fields. For example, consider two generators in a standby configuration where the primary generator is operating and the secondary one is in a standby state. If the primary generator fails, it takes some time to turn the secondary one on. In this article, we will focus on modeling dependent events with delays in BlockSim 8.


Read the Latest Reliability News

JUST RELEASED! 2013 Worldwide Seminar Calendar

ReliaSoft has just released the 2013 Worldwide Seminar Calendar and it is now available online for review! Explore our easy-to-use, web-based event list to quickly locate an event near you: It is never too early to schedule for next year!


Claudio Spano Presenting at SMRP

The Society for Maintenance and Reliability Professionals ( will hold its annual conference on October 15-18, 2012 in Orlando, Florida. Claudio Spano, Managing Director of ReliaSoft, Brasil, will be presenting on PAS 55 and reliability engineering, including the importance of reliability engineering in a successful asset management program. Come visit the ReliaSoft staff at booth #111 to learn more about the latest features related to asset management in ReliaSoft's reliability tools. While you're there, enter to win a free copy of RCM++!


Quick! Don’t Miss Out…

ReliaSoft's MSMT Reliability Foundations Series will be held in Tucson, Arizona on October 22-26 and in Melbourne, Australia on October 29-November 2. This course covers the fundamental reliability disciplines and accompanying analysis tools. During this five-day hands-on training course, attendees will work with Weibull++, ALTA, and BlockSim. For more information on MSMT, visit Act fast — time is running out to register!


Call for Presenters

Share the experiences that have helped shape and polish your reliability engineering skills! The International Applied Reliability Symposium provides a forum to share challenges and success stories with other professionals in the industry. The 2013 North America Symposium will be held from June 5-7, 2013 in Minneapolis, Minnesota and the presentation proposal deadline is December 7, 2012. Complete details, including the required proposal form, are available for your review at

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