Cyber defense of rotating machinery using an integrated 'fuse' bearing

Evyatar Cohen, Jacob Bortman, Renata Klein

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

2 Scopus citations

Abstract

A new concept is proposed for protection against cyberattacks aiming to create excessive loads that will eventually result in irreversible damage to critical rotating machines. This novel approach is used as an additional defense layer of cyber protection to prevent hostile entities from breaking into the control system of the critical machines. A relatively small bearing is used as the "weak link", or the "fuse" mechanism, in the critical system. This mechanism allows rapid life degradation under harmful regimes, which leads to early detection of attack and finally to prevention of catastrophic damage to a critical machine. The detection of the fuse degradation process is based on techniques of machine health monitoring via vibrations signatures. An analytical model was developed, allowing to design the 'fuse bearing'. The model examines the response of the fuse bearing, through its life degradation rate, by simulating a wide range of attack scenarios. The model integrates sub models: bearing life estimation models and a dynamic response of mechanical rotating machines model. In addition, a set of fatigue life experiments were conducted on a designated experimental test facility with the purpose of proving the early damage detection ability of the fuse bearing using vibration analysis.

Original languageEnglish
Title of host publicationPHM 2015 - Proceedings of the Annual Conference of the Prognostics and Health Management Society 2015
EditorsMatthew J. Daigle, Anibal Bregon
PublisherPrognostics and Health Management Society
Pages532-542
Number of pages11
ISBN (Electronic)9781936263202
StatePublished - 1 Jan 2015
Event2015 Annual Conference of the Prognostics and Health Management Society, PHM 2015 - San Diego, United States
Duration: 18 Oct 201522 Oct 2015

Publication series

NameProceedings of the Annual Conference of the Prognostics and Health Management Society, PHM
ISSN (Print)2325-0178

Conference

Conference2015 Annual Conference of the Prognostics and Health Management Society, PHM 2015
Country/TerritoryUnited States
CitySan Diego
Period18/10/1522/10/15

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