Creating Nodes at Selected Locations in a Harmonically Excited Structure Using Feedback Control and Green’s Function
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. Th...
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| Format: | Article |
| Language: | English |
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Wiley
2019-01-01
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| Series: | Shock and Vibration |
| Online Access: | http://dx.doi.org/10.1155/2019/3261628 |
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| _version_ | 1832552154670301184 |
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| author | Bassam A. Albassam |
| author_facet | Bassam A. Albassam |
| author_sort | Bassam A. Albassam |
| collection | DOAJ |
| description | 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. |
| format | Article |
| id | doaj-art-47317c15a690467a8552a5b123e0e97d |
| institution | Kabale University |
| issn | 1070-9622 1875-9203 |
| language | English |
| publishDate | 2019-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Shock and Vibration |
| spelling | doaj-art-47317c15a690467a8552a5b123e0e97d2025-02-03T05:59:25ZengWileyShock and Vibration1070-96221875-92032019-01-01201910.1155/2019/32616283261628Creating Nodes at Selected Locations in a Harmonically Excited Structure Using Feedback Control and Green’s FunctionBassam A. Albassam0King Saud University, College of Engineering, Mechanical Engineering Department, Box 800, Riyadh 11421, Saudi ArabiaThe 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.http://dx.doi.org/10.1155/2019/3261628 |
| spellingShingle | Bassam A. Albassam Creating Nodes at Selected Locations in a Harmonically Excited Structure Using Feedback Control and Green’s Function Shock and Vibration |
| title | Creating Nodes at Selected Locations in a Harmonically Excited Structure Using Feedback Control and Green’s Function |
| title_full | Creating Nodes at Selected Locations in a Harmonically Excited Structure Using Feedback Control and Green’s Function |
| title_fullStr | Creating Nodes at Selected Locations in a Harmonically Excited Structure Using Feedback Control and Green’s Function |
| title_full_unstemmed | Creating Nodes at Selected Locations in a Harmonically Excited Structure Using Feedback Control and Green’s Function |
| title_short | Creating Nodes at Selected Locations in a Harmonically Excited Structure Using Feedback Control and Green’s Function |
| title_sort | creating nodes at selected locations in a harmonically excited structure using feedback control and green s function |
| url | http://dx.doi.org/10.1155/2019/3261628 |
| work_keys_str_mv | AT bassamaalbassam creatingnodesatselectedlocationsinaharmonicallyexcitedstructureusingfeedbackcontrolandgreensfunction |