TY - GEN
T1 - Real-time hybrid testing with equivalent force control method incorporating Kalman filter
AU - Wu, B.
AU - Shi, P.
AU - Spencer, B. F.
AU - Phillips, B. M.
AU - Chang, C. M.
N1 - Funding Information:
This research is financially supported by National Science Foundation of China (90715036), and Fundamental Research Funds for the Central Universities (HIT.BRET2.2010009 and HIT.ICRST. 2010016).
Publisher Copyright:
© 2011 EUCENTRE. All rights reserved.
PY - 2011/11/22
Y1 - 2011/11/22
N2 - The equivalent force control (EFC) method has been developed for real-time hybrid testing (RHTing) to replace the numerical iteration for implicit integration with a force-feedback control loop. With this control loop, the EFC method can also compensate the time delay in RHTing. However, some other factors may influence the delay compensation effect of EFC method, such as noise in the measured displacement. This paper discusses the influence of the measured noise (fedback into the displacement command of actuator) on RHTing with EFC method. To filter the noise in the measured actuator displacement, a Kalman filter is designed. A higher proportional gain of PID controller, which improves the effect of time delay compensation of EFC method, can be allowed without losing stability by using the Kalman filter. A series of RHTs were conducted to demonstrate that EFC method with Kalman filter can effectively compensate the time delay.
AB - The equivalent force control (EFC) method has been developed for real-time hybrid testing (RHTing) to replace the numerical iteration for implicit integration with a force-feedback control loop. With this control loop, the EFC method can also compensate the time delay in RHTing. However, some other factors may influence the delay compensation effect of EFC method, such as noise in the measured displacement. This paper discusses the influence of the measured noise (fedback into the displacement command of actuator) on RHTing with EFC method. To filter the noise in the measured actuator displacement, a Kalman filter is designed. A higher proportional gain of PID controller, which improves the effect of time delay compensation of EFC method, can be allowed without losing stability by using the Kalman filter. A series of RHTs were conducted to demonstrate that EFC method with Kalman filter can effectively compensate the time delay.
KW - Equivalent force control
KW - Kalman filter
KW - MR damper
KW - Real-time hybrid testing
KW - Time delay compensation
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M3 - Conference contribution
AN - SCOPUS:85071171930
T3 - International Conference on Advances in Experimental Structural Engineering
BT - Proceedings of the 2nd EFAST Workshop and 4AESE International Conference
PB - EUCENTRE
T2 - 2nd EFAST Workshop and 4th International Conference on Advances in Experimental Structural Engineering, AESE 2011
Y2 - 29 June 2011 through 30 June 2011
ER -