Active tuned inerter-damper for smart structures and its ℋ∞ optimisation. (15th August 2019)

• Record Type: Journal Article
• Authors: Zhao, G.; Raze, G.; Paknejad, A.; Deraemaeker, A.; Kerschen, G.; Collette, C.
• Is Part Of: Mechanical systems and signal processing. Volume 129(2019)
• Page Start: 470
• Page End: 478
• Publication Date: 2019-08-15
• Subjects: Inerter -- ℋ∞ optimisation -- Force feedback -- Smart structures; Structural dynamics -- Periodicals; Vibration -- Periodicals; Constructions -- Dynamique -- Périodiques; Vibration -- Périodiques; Structural dynamics; Vibration; Periodicals; 621
• DOI: 10.1016/j.ymssp.2019.04.044
• Languages: English
• ISSNs: 0888-3270

Abstract

Highlights: An active approach for the implementation of inerter-damper devices is proposed. The equivalent mechanical model of the proposed controller is developed. The optimal controller parameters are derived in closed-form using ℋ∞ criterion. Abstract: In this paper, an active tuned inerter damper (ATID) is proposed and theoretically analysed. The proposed device is composed of a pair of collocated reactive actuator and force sensor. It is functioned by feeding back the output of the force sensor, through both single and double integrators to drive the actuator in order to destructively interfere with the host structure vibrations. The equivalent mechanical components for the single integrator and the double integrator are identified to correspond to a dashpot and an inerter, respectively. The ℋ∞ optimisation criterion is used for tuning the ATID, and closed-form expressions for the feedback gains are derived.