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Controlling a Shake Table for Earthquake Simulations


Andreas Büchel, Marc Dürr

Semester/Bachelor Thesis, WS 05/06

Earthquakes can cause massive devastation and lead to significant losses of life. The main problems arise not from the quake itself, but from human structures, which collapse under the various forces and vibrations, which occur during an earthquake.
New building materials and structures are often tested using shake tables that can reproduce the ground movements recorded from seismology data. In this project, a controller capable of reproducing the accelerations that occur during strong quakes is developed.
In the past, only the displacement of the shaking table has been controlled, which has led to poor acceleration reference tracking. Thus the Institute of Structural Engineering (IBK) of Prof. Dr. Dazio would like to improve the control of their shake table.
The objective of this semester project is to achieve a good acceleration reference tracking in the frequency range of interest. Since the maximum displacement of the table is limited, displacement constraints have to be considered in the control design. Additionally, the load on the shake table can vary. This yields changes in the dynamic performance. Thus an offline identification of the shake table with its load is required to proper set the parameters of the controller.

Supervisors: M. Lawrence, U. Maeder, Prof. M. Morari


Type of Publication:

(13)Semester/Bachelor Thesis

M. Morari

No Files for download available.
% Autogenerated BibTeX entry
@PhdThesis { B_cD_r:2006:IFA_2815
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