Applicability of AMD controller based on the fixed-base structure to control SSI system

F. X. Wang; J. P. Ou

doi:10.1117/12.776207

18 April 2008 Applicability of AMD controller based on the fixed-base structure to control SSI system

F. X. Wang, J. P. Ou

Proceedings Volume 6928, Active and Passive Smart Structures and Integrated Systems 2008; 692814 (2008) https://doi.org/10.1117/12.776207
Event: SPIE Smart Structures and Materials + Nondestructive Evaluation and Health Monitoring, 2008, San Diego, California, United States

Abstract

The essence of AMD controller based on the fixed-base structure to control SSI system is interpreted, firstly. Then the applicability of AMD controller based on fixed-base structure to control SSI system is studied through simulation analysis using LQR algorithm. The results show that the AMD controller designed based on the fixed-base structure can control SSI system effectively when the ratio of the frequencies of the SSI system and the fixed-base structure ω_s / ω_r is larger than 0.9. However, when s ω_s / ω_r is smaller than 0.4 this kind controller is not suitable to control SSI system. Finally, the shaking table tests about AMD control SSI system built on three kinds of soil parameters are carried out using four kinds AMD controllers. Tests result that while the soil foundation is stiff enough the controllers work very effectively, while the soil foundation is soft the controllers can't control the response of SSI system even make larger deformation and acceleration of the structure. The test results further validate the conclusion of simulation analysis.

Citation Download Citation

F. X. Wang and J. P. Ou "Applicability of AMD controller based on the fixed-base structure to control SSI system", Proc. SPIE 6928, Active and Passive Smart Structures and Integrated Systems 2008, 692814 (18 April 2008); https://doi.org/10.1117/12.776207

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