Optimal Placement of Actuators for Active Vibration Control
IR@SERC: CSIR-Structural Engineering Research Centre, Chennai
View Archive Info| Field | Value | |
| Title |
Optimal Placement of Actuators for Active Vibration Control
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| Creator |
Rama Mohan Rao, A.
Sivasubramanian, K. |
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| Description |
Active control devices can be implemented on seismically excited high rise buildings using appropriate active control
theory, to reduce structural responses to a desired level. Certain locations of the structure are advantageous for placement
of actuators in the sense that these locations effectively reduce the structural responses. Hence, optimal placement of
actuators at discrete locations is an important problem that will have significant impact on control of civil structures like
high rise buildings, bridges, etc. This optimal placement problem leads to a combinatorial optimisation and is difficult
to solve.
This paper presents a multi-start meta-heuristic algorithm called multiple start guided neighbourhood search (MSGNS)
algorithm, which makes use of the good features of guided local searches like simulated annealing (SA) and tabu search
(TS). Four distinct design criteria which influence the active control design are considered in this paper to study the
optimal actuator placement problem. The sensitivities of the four optimisation criteria with respect to different earthquake
records are explored. Further, in this paper, we deviate from the usual practice of using shear building models (or simple
lumped mass model) in active control research for finding optimal actuator locations. Instead, we use detailed finite
element models and demonstrate through numerical examples their effectiveness in arriving at the optimal actuator
locations. Finally, the superior performance of the proposed MSGNS algorithm over popular meta-heuristic algorithms
like GA, SA and TS is demonstrated through numerical experiments.
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| Date |
2009
2009 2007 |
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| Type |
Article
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| Identifier |
Journal of Sound and Vibration vol.311, 2008, pp.133–159
http://hdl.handle.net/123456789/126 |
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| Language |
en
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| Rights |
It is tried to respect the rights of the copyright holders to the best of the knowledge. If it is brought to our notice that the rights are violated then the item would be withdrawn.
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| Publisher |
Elsevier
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