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Creating Nodes at Selected Locations in a Harmonically Excited Structure Using Feedback Control and Green's Function.
- Source :
-
Shock & Vibration . 2/7/2019, p1-20. 20p. - Publication Year :
- 2019
-
Abstract
- The paper deals with designing a control force to create nodal point(s) having zero displacements and/or zero slopes at selected locations in a harmonically excited vibrating structure. It is shown that the steady-state vibrations at desired points can be eliminated using feedback control forces. These control forces are constructed from displacement and/or velocity measurements using sensors located either at the control force position or at some other locations. Dynamic Green's function is exploited to derive a simple and exact closed from expression for the control force. Under a certain condition, this control force can be generated using passive elements such as springs and dampers. Numerical examples demonstrate the applicability of the method in various cases. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 10709622
- Database :
- Academic Search Index
- Journal :
- Shock & Vibration
- Publication Type :
- Academic Journal
- Accession number :
- 134571490
- Full Text :
- https://doi.org/10.1155/2019/3261628