@inproceedings{c1c2ff9925fe457197c48e4b64a9f786,
title = "Feedback delays for vibration mitigation and external disturbance rejection at the microscale",
abstract = "This effort discusses the implementation of delayed-feedback algorithms as effective mechanisms for vibration mitigation at the microscale. A delayed velocity-feedback algorithm is considered and employed to mitigate the flexural vibrations of a microcantilever beam. The linear stability of the closed-loop unforced system is assessed to determine the gain-delay combinations wherein the fixed points of the system are locally-asymptotically stable. The method of multiple scales is then implemented to analyze the steady-state forced response of the closed-loop dynamics. Theoretical results demonstrate that inherent system delays can be easily augmented into a larger delay period that can be used to stabilize the system dynamics and enhance the damping characteristics of the response. The proposed concept is implemented experimentally on a microcantilever sensor. The feedback algorithm is shown to have excellent performance in mitigating the ffects of external disturbances and periodic excitations.",
keywords = "Delayed-feedback control, Method of multiple scales, Microcantilever beam, Stability pockets",
author = "Yousef Qaroush and Daqaq, {Mohammed F.} and Reza Saeidpourazar and Joshua Tarbutton and Nader Jalili",
year = "2009",
language = "English (US)",
isbn = "9781563479731",
series = "Collection of Technical Papers - AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics and Materials Conference",
booktitle = "50th AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics and Materials Conference",
note = "50th AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics and Materials Conference ; Conference date: 04-05-2009 Through 07-05-2009",
}