NDLI: Spatial Vibration Control of Thin Beams Using Multimode Modified Positive Position Feedback

Content Provider	The American Society of Mechanical Engineers (ASME) Digital Collection
Author	Omidi, Ehsan Mahmoodi, S. Nima
Copyright Year	2014
Abstract	Spatial multimode resonant vibration suppression using Modified Positive Position Feedback (MPPF) approach is presented in this paper. Spatial implementation of the MPPF controller considers vibration attenuation in the whole structure, rather than on a limited number of local control points. This approach utilizes spatial norm minimization of H2 and H∞, which considers vibration amplitude of all points on the structure in a model-based design. The designed controller is then evaluated using a clamped-clamped (c-c) and a cantilever beam as the test platforms. According to the numerical simulations and experimental results, spatial MPPF controller using both norm minimization techniques provides a high level of vibration suppression all over the structure, and for all active resonant modes. The MPPF-H∞ controlled system has a smoother response in the frequency domain, which is more preferable when the closed-loop system experiences a frequency sweep disturbance. At exact resonant frequency however, experimental results confirm a better suppression performance using the spatial MPPF-H2 method on different points of both beam structures.
Sponsorship	Dynamic Systems and Control Division
File Format	PDF
ISBN	9780791846209
DOI	10.1115/DSCC2014-5867
Volume Number	Volume 3: Industrial Applications; Modeling for Oil and Gas, Control and Validation, Estimation, and Control of Automotive Systems; Multi-Agent and Networked Systems; Control System Design; Physical Human-Robot Interaction; Rehabilitation Robotics; Sensing and Actuation for Control; Biomedical Systems; Time Delay Systems and Stability; Unmanned Ground and Surface Robotics; Vehicle Motion Controls; Vibration Analysis and Isolation; Vibration and Control for Energy Harvesting; Wind Energy
Conference Proceedings	ASME 2014 Dynamic Systems and Control Conference
Language	English
Publisher Date	2014-10-22
Publisher Place	San Antonio, Texas, USA
Access Restriction	Subscribed
Subject Keyword	Design Vibration Computer simulation Feedback Control equipment Vibration control Resonance Vibration suppression Cantilever beams Closed loop systems
Content Type	Text
Resource Type	Article

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