|Table of Contents|

Application of LQR and GPC Algorithm in Isolation Structure with Piezoelectric Friction Damper(PDF)

《建筑科学与工程学报》[ISSN:1673-2049/CN:61-1442/TU]

Issue:
2008年04期
Page:
93-97
Research Field:
Publishing date:
2008-12-20

Info

Title:
Application of LQR and GPC Algorithm in Isolation Structure with Piezoelectric Friction Damper
Author(s):
HU Wei-bing1;  LUO Shu-quan1;  WANG Jun-tao2
1. School of Civil Engineering, Xi'an University of Architecture and Technology, Xi'an 710055, Shaanxi, China; 2. Capital Engineering and Research Incorporation Ltd, Beijing 100053, China
Keywords:
vibration control;  piezoelectric friction damper;  base isolation;  earthquake response
PACS:
TU311.3
DOI:
-
Abstract:
Two kinds of intelligent control algorithms were chosen according to the characteristics of piezoelectric friction damper isolation system; linear quadratic regulator(LQR)and general predictive control(GPC)were chosen as the control algorithms of a complete set of isolation system, and semi-passive control algorithm was chosen as control output strategy. The isolation effect of the control algorithm was validated through contrasting dynamic reaction with time history analysis. The results show that earthquake reaction is significantly reduced in either frequently occurred earthquake or seldom occurred earthquake, accelerated speed of all drifts are reduced more than 75%, layer displacement is reduced 70% to 80%, displacement reaction of structure mainly concentrates on isolation drift, the control algorithm significantly reduces the displacement of isolation drift and improves the control effect.

References:

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Memo

Memo:
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Last Update: 2008-12-20