A method for bidirectional active vibration control of structure using discrete-time sliding mode. Issue 13 (2018)

• Record Type: Journal Article
• Authors: Paul, Satyam; Yu, Wen; Jafari, Raheleh
• Is Part Of: IFAC-PapersOnLine. Volume 51:Issue 13(2018)
• Page Start: 361
• Page End: 365
• Publication Date: 2018
• Subjects: active vibration control -- sliding mode control -- discrete-time -- Lyapunov stability -- fuzzy logic; Automatic control -- Periodicals; 629.805
• DOI: 10.1016/j.ifacol.2018.07.305
• Languages: English
• ISSNs: 2405-8963

Abstract

Abstract: In this paper, a novel discrete-time sliding mode control is proposed in order to attenuate structural vibration due to earthquake forces. The analysis is based on the lateral-torsional vibration under the bidirectional waves. The proposed fuzzy modeling based sliding mode control can reduce chattering due to its time-varying gain. In the modeling equation of the structural system, the uncertainty exists in terms of sti¤ness, damping forces and earthquake. Fuzzy logic model is used to identify and compensate the uncertainty associated with the modeling equation. We prove that the closed-loop system is uniformly stable using Lyapunov stability analysis. The experimental result reveals that discrete-time sliding mode controller offers significant vibration attenuation with active mass damper and torsional actuator.