Real-time hybrid testing with equivalent force control method incorporating Kalman filter

B. Wu, P. Shi, B. F. Spencer, B. M. Phillips, C. M. Chang

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

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.

Original languageEnglish (US)
Title of host publicationProceedings of the 2nd EFAST Workshop and 4AESE International Conference
PublisherEUCENTRE
ISBN (Electronic)9789279212116
StatePublished - Nov 22 2011
Event2nd EFAST Workshop and 4th International Conference on Advances in Experimental Structural Engineering, AESE 2011 - Ispra, Italy
Duration: Jun 29 2011Jun 30 2011

Publication series

NameInternational Conference on Advances in Experimental Structural Engineering
Volume2011-June
ISSN (Electronic)2522-2503

Conference

Conference2nd EFAST Workshop and 4th International Conference on Advances in Experimental Structural Engineering, AESE 2011
CountryItaly
CityIspra
Period6/29/116/30/11

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Keywords

  • Equivalent force control
  • Kalman filter
  • MR damper
  • Real-time hybrid testing
  • Time delay compensation

ASJC Scopus subject areas

  • Civil and Structural Engineering
  • Building and Construction

Cite this

Wu, B., Shi, P., Spencer, B. F., Phillips, B. M., & Chang, C. M. (2011). Real-time hybrid testing with equivalent force control method incorporating Kalman filter. In Proceedings of the 2nd EFAST Workshop and 4AESE International Conference (International Conference on Advances in Experimental Structural Engineering; Vol. 2011-June). EUCENTRE.