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Charles R. Farrar
Researcher at Los Alamos National Laboratory
Publications - 361
Citations - 28706
Charles R. Farrar is an academic researcher from Los Alamos National Laboratory. The author has contributed to research in topics: Structural health monitoring & Sensor node. The author has an hindex of 70, co-authored 357 publications receiving 26338 citations. Previous affiliations of Charles R. Farrar include Analysis Group.
Papers
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Book ChapterDOI
Establishment of Full-Field, Full-Order Dynamic Model of Cable Vibration by Video Motion Manipulations
Lorenzo Sanchez,Huiying Zhang,Alexander Roeder,John Bowlan,Jared Crochet,Yongchao Yang,Charles R. Farrar,David Mascareñas +7 more
TL;DR: This study develops a video measurement and processing based technique that can autonomously and blindly extract the full-field dynamic parameters of cable vibration from the video measurements, and by exploiting the taut string theory, full-order dynamic parameters are also extracted.
Proceedings ArticleDOI
Recent Advances in Impedance-Based Wireless Sensor Nodes
TL;DR: In this article, an extremely compact, wireless impedance sensor node for use in structural health monitoring (SHM) is presented. And the performance of this miniaturized and portable device is compared to previous results and its broader capabilities are demonstrated.
Reference EntryDOI
Energy Harvesting and Wireless Energy Transmission for SHM Sensor Nodes
TL;DR: The goal of this study is to provide a method for supplying power to a sensor node periodically so that the SHM system does not rely on an onboard power source.
Journal ArticleDOI
Damage Detection in RAPTOR Telescope Systems Using Time-Frequency Analysis Methods
Ifigeneia Antoniadou,Keith Worden,Graeme Manson,Nikolaos Dervilis,Stuart G. Taylor,Charles R. Farrar +5 more
TL;DR: In this paper, the first component of the RAPTOR telescope to fail is a capstan driving mechanism that operates in a run-to-failure mode, which can cause damage to other more expensive components, such as the drive wheels and the telescope optics.