Abstract
AbstractMost of the recent research activities in structural control have been focused on developing more robust and rigorous control algorithms to account for more realistic dynamic environment. Although a number of active, hybrid and semi‐active control systems have been implemented to control the vibration of buildings, and many experimental studies have been conducted, the necessary knowledge needed for implementation is still not sufficient to prepare general guidelines for structural control system design and installation. Furthermore, the whole implementation process which requires integration of research results from diverse interdisciplinary areas has not been well addressed. The purpose of this paper is to introduce necessary knowledge needed to successfully implement general control system to a structure for safeguarding it against environmental forces such as wind or earthquakes. The major requirements of the analog/digital control hardware are first addressed. A custom‐designed signal interface unit equipped with conditioning, filtering, monitoring, fail‐safe limit detection, signal communication, and remote activation subsystems is then required to deal with the integrated system through the help of a digital computer. The implicit software issues between theoretical development and actual implementation, such as overall system configuration, sampling rates setup, analog‐I/O interface, hardware offsets removal, noise rejection, signal error modification, engineering units scaling, control algorithm implementation, system status monitoring, automatic operations of power and force generators, multi‐protection fail‐safe measures, false‐alarm control command rejection, and real‐time signal manipulation, should be included in a modular design of any control software for real implementational design. The important hardware and software safety and compatibility features have to be identified, verified and adjusted in order to eliminate many of the common problems that may occur in practical implementation of a complex control system. The idea of using a real‐time structural simulator (RTSS) to perform integrated system testing as well as control performance verification is also introduced. Copyright © 2002 John Wiley & Sons, Ltd.
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