Vibration control of a seismically-excited flexible structure using the filtered-E LMS algorithm

• Published in: TENCON 2004 : 2004 IEEE Region 10 Conference : proceedings : analog and digital techniques in electrical engineering : 21-24 November, 2004, Chiang Mai, Thailand Vol. D; pp. 554 - 557 Vol. 4
• Main Authors: Rabuya, I.A., Sison, L.G., Burgos, O.T.
• Format: Conference Proceeding
• Language: English
• Published: Piscataway NJ IEEE 2004
• Subjects: Acceleration; Accelerometers; Adaptive control; Adaptive filters; Applied sciences; Circuit properties; Detection, estimation, filtering, equalization, prediction; Earthquakes; Electric, optical and optoelectronic circuits; Electrical engineering. Electrical power engineering; Electrical machines; Electronic circuits; Electronics; Exact sciences and technology; Flexible structures; Frequency filters; Information, signal and communications theory; Least squares approximation; Programmable control; Regulation and control; Shock absorbers; Signal and communications theory; Signal, noise; Telecommunications and information theory; Vibration control; Adaptive filter; Experimental study; Adaptive control; Learning; Flexible structure; Earthquakes; Active damper; Accelerometer; System simulation; Vibration control; Feedforward; Train; Least mean squares methods
• ISBN: 0780385608; 9780780385603
• DOI: 10.1109/TENCON.2004.1414993

Adaptive feedforward control using the filtered-E LMS algorithm is used to control the vibrations of a flexible structure. The structure is seismically-excited using a scaled El Centro earthquake record. Ground and top floor accelerations are sensed using accelerometers, and an active mass damper mounted on top of the structure is used to cancel out the vibrations. Simulations are used to train the adaptive filter on the dynamics of the structure. Experimental results show that the top floor peak absolute acceleration of the flexible structure is reduced by 56%.