exida Recorded Webinars

Mechanical Component Failure Rates - Static vs. Dynamic Operation

Recording Date: March 2015

The failure rates of certain mechanical components used in solenoid valves, actuators, and valves vary substantially depending on operation.  For example, seals such as o-rings have fundamentally different failure modes when used in applications with frequent movement (dynamic) versus applications with infrequent movement (static).  exida has accumulated over 160 billion unit operating hours of field failure data primarily from the process industries which was used in recent mechanical failure research.

This webinar explains some results from this recent exida research where failure rates and failure modes of several mechanical components were established. It is also useful for anyone planning proof testing for mechanical SIF devices and anyone who wants to understand field failure data for mechanical devices.

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About the Presenter:

Loren Stewart, CFSE

Loren Stewart Loren Stewart graduated from Virginia Tech with a BSME. She has over 10 years of professional experience. She currently works for exida consulting as a safety engineer, focusing on the mechanical aspects of their customers. Along with assessing the safety of products and creating FMEDAs and reports, she researches stiction and is creating a database for the 2H initiative according to IEC 61508.