Optimal Location of Active Controllers Subjected to Seismic Excitation

by C. P. Pantelides, Univ of Missouri-Rolla, United States,
F. Y. Cheng, Univ of Missouri-Rolla, United States,

Document Type: Proceeding Paper

Part of: Computer Utilization in Structural Engineering


In the application of structural control to seismic structures certain locations are advantageous for placement of the actuators. These locations reduce the structure's response while using the minimum control effort. Two methods for selecting these optimal locations are integrated. The first method utilizes the minimization of a control energy performance index. The second method uses a minimum response performance index as the criterion. A new method is proposed which uses an empirical procedure to find the optimal locations by maximizing a controllability performance index. Using modal responses and earthquake spectra, the optimal locations are determined by selecting the floors with maximum optimal locations index.

Subject Headings: Seismic tests | Seismic effects | Excitation (physics) | Structural analysis | Equations of motion | Earthquakes | Energy methods | Empirical equations

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