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Smart Structures and Systems
  Volume 15, Number 3, March 2015 , pages 863-879

Experimental investigation of an active mass damper system with time delay control algorithm
Dong-Doo Jang, Jeongsu Park and Hyung-Jo Jung

    This paper experimentally investigates the effectiveness and applicability of the time delay control (TDC) algorithm, which is simple and robust to unknown system dynamics and disturbance, for an active mass damper (AMD) system to mitigate the excessive vibration of a building structure. To this end, the theoretical background including the mathematical formulation of the control system is first described; and then, a thorough experimental study using a shaking table system with a small-scale three-story building structural model is conducted. In the experimental tests, the performance of the proposed control system is examined by comparing its structural responses with those of the uncontrolled system in the free vibration and forced vibration cases. It is clearly verified from the test results that the TDC algorithm embedded AMD system can effectively reduce the structural response of the building structure.
Key Words
    time delay control algorithm; unknown dynamics; vibration mitigation; active mass damper; shaking table test
Dong-Doo Jang: Korea Railroad Research Institute, Euiwang, Gyeonggi-do 437-757, Korea
Jeongsu Park and Hyung-Jo Jung: Department of Civil and Environmental Engineering, KAIST, Daejeon 305-701, Korea

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