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A simple strategy for dynamic substructuring: II. Experimental evaluation
Author(s) -
Stefanaki Aikaterini,
Sivaselvan M. V.,
Weinreber Scot,
Pitman Mark
Publication year - 2018
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/eqe.3041
Subject(s) - robustness (evolution) , actuator , nonlinear system , computer science , simple (philosophy) , control engineering , earthquake shaking table , control theory (sociology) , lookup table , engineering , control (management) , artificial intelligence , structural engineering , philosophy , epistemology , biochemistry , chemistry , physics , quantum mechanics , gene , programming language
Summary This paper is on an extensive experimental evaluation program to explore the robustness of a new strategy dynamic substructuring. This strategy, in contrast to conventional approaches, decouples the substructuring controller from the physical subsystem, and consequently results in a simple, yet robust, implementation. The concept is presented in detail in a companion paper. A configuration consisting of a shake table and an active mass driver is used in the experimental program, and various factors such as dynamics of virtual subsystems used, modeling of the actuator, choice of control gain settings, and nonlinear effects in the actuator are investigated, leading to the conclusion that the proposed strategy results in robust performance.