H2 optimal vibration control using inertial actuators and a comparison with tuned mass dampers

Alujević, Neven and Zhao, Guoying and Depraetere, Bruno and Sas, Paul and Pluymers, Bert and Desmet, Wim (2014) H2 optimal vibration control using inertial actuators and a comparison with tuned mass dampers. = H2 optimal vibration control using inertial actuators and a comparison with tuned mass dampers. Journal of sound and vibration, 333 (18). pp. 4073-4083. ISSN 0022-460X. Vrsta rada: ["eprint_fieldopt_article_type_article" not defined]. Kvartili JCR: Q1 (2014). Točan broj autora: 6.

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Abstract

The optimum resonance frequency and the damping coefficient for passive Tuned Mass Dampers (TMD) have been determined using various optimality criteria in the past. In this study an active damping method using Inertial Actuators (IAs) is considered. Closed form expressions for the H2 optimal control parameters that minimise the kinetic energy of the primary structure are derived. It is shown that the resonance frequency of the IA should be as low as practically possible. However, for a given resonance frequency, an optimal pair exists of the passive damping coefficient of the IA and the feedback gain. Closed form expressions for these are provided in the paper. It is noted that the amount by which the described active approach outperforms an optimally tuned TMD having the same mass depends on the squared ratio of resonance frequencies of the IA and the primary structure.

Item Type: Article (["eprint_fieldopt_article_type_article" not defined])
Keywords (Croatian): Acoustic devices; Actuators; Damping; Kinetic energy; Kinetics Closed-form expression; Damping coefficients; Inertial actuators; Optimal controls; Optimality criteria; Primary structures; Resonance frequencies; Tuned mass dampers
Subjects: TECHNICAL SCIENCE > Mechanical Engineering
Divisions: 600 Department of Naval Engineering and Marine Technology > 620 Chair of Marine Structures Design
Indexed in Web of Science: Yes
Indexed in Current Contents: Yes
Quartiles: Q1 (2014)
Date Deposited: 20 Mar 2017 12:29
Last Modified: 15 Dec 2017 13:37
URI: http://repozitorij.fsb.hr/id/eprint/7587

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