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High‐fidelity control of a seismic shake table
Author(s) -
Kuehn J.,
Epp D.,
Patten W. N.
Publication year - 1999
Publication title -
earthquake engineering and structural dynamics
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.218
H-Index - 127
eISSN - 1096-9845
pISSN - 0098-8847
DOI - 10.1002/(sici)1096-9845(199911)28:11<1235::aid-eqe864>3.0.co;2-h
Subject(s) - earthquake shaking table , shake , table (database) , fidelity , high fidelity , engineering , process (computing) , control system , control (management) , tracking (education) , simulation , control engineering , computer science , structural engineering , artificial intelligence , data mining , mechanical engineering , psychology , pedagogy , electrical engineering , operating system
A high‐fidelity PC‐based control system has been developed to improve the tracking characteristics of a small‐scale seismic motion simulator used for testing structural control designs. This work outlines the development and testing of the control system. First, the simulator hardware is described in detail. The process of constructing a mechanistic model of the system and identifying model parameters is then described. Next, a closed‐loop feedback/feed‐forward control algorithm, based on an optimal receding horizon formulation, is developed. The control design was tested and the results indicate that the seismic shake table precisely tracked reference seismic motions. Copyright © 1999 John Wiley & Sons, Ltd.