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Predictive inelastic state control of modern structures during earthquakes
10.1002/stc.44.abs
The predictive inelastic state control (PISC) algorithm is proposed by incorporating an elastic‐based predictive state control algorithm with inelastic structural analysis. Force analogy method based on initial stiffness is used in the analysis to simplify the numerical computation. This proposed inelastic control algorithm compensates for the time delay that occurs in practical application of structural control by predicting the inelastic structural response over a period equal to the time delay, and substituting the predicted structural response in the expression of an ideal control force without considering time delays. A one‐storey moment‐resisting frame with different inelastic characteristics is analyzed using this algorithm. Numerically simulated results show that the proposed control algorithm is feasible for various types of inelastic structures. While the control efficiency deteriorates with increase in time delay magnitude, PISC shows good performance within a certain range of time delays. More importantly, it is found that a control system with smaller time delay magnitude does not guarantee better performance than that with larger time delay magnitude. Finally, numerical simulation on a six‐storey moment‐resisting frame is performed to demonstrate that PISC gives good control results in a practical inelastic structure. Copyright © 2004 John Wiley & Sons, Ltd.
Predictive inelastic state control of modern structures during earthquakes
10.1002/stc.44.abs
The predictive inelastic state control (PISC) algorithm is proposed by incorporating an elastic‐based predictive state control algorithm with inelastic structural analysis. Force analogy method based on initial stiffness is used in the analysis to simplify the numerical computation. This proposed inelastic control algorithm compensates for the time delay that occurs in practical application of structural control by predicting the inelastic structural response over a period equal to the time delay, and substituting the predicted structural response in the expression of an ideal control force without considering time delays. A one‐storey moment‐resisting frame with different inelastic characteristics is analyzed using this algorithm. Numerically simulated results show that the proposed control algorithm is feasible for various types of inelastic structures. While the control efficiency deteriorates with increase in time delay magnitude, PISC shows good performance within a certain range of time delays. More importantly, it is found that a control system with smaller time delay magnitude does not guarantee better performance than that with larger time delay magnitude. Finally, numerical simulation on a six‐storey moment‐resisting frame is performed to demonstrate that PISC gives good control results in a practical inelastic structure. Copyright © 2004 John Wiley & Sons, Ltd.
Predictive inelastic state control of modern structures during earthquakes
Yang, Rong (Autor:in) / Wong, Kevin K. F. (Autor:in) / Pan, Tso‐Chien (Autor:in)
Structural Control and Health Monitoring ; 11 ; 291-309
01.10.2004
19 pages
Aufsatz (Zeitschrift)
Elektronische Ressource
Englisch
Predictive inelastic state control of modern structures during earthquakes
| Online Contents | 2004
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