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

被引：30

作者：

Alujevic, N. ^{[1
]}

Zhao, G. ^{[1
]}

Depraetere, B. ^{[2
]}

Sas, P. ^{[1
]}

Pluymers, B. ^{[1
]}

Desmet, W. ^{[1
]}

机构：

[1] Katholieke Univ Leuven, Prod Engn Machine Design & Automat PMA Sect, B-3001 Heverlee, Belgium

[2] Flanders Mechatron Technol Ctr, B-3001 Heverlee, Belgium

来源：

JOURNAL OF SOUND AND VIBRATION | 2014年 / 333卷 / 18期

关键词：

PASSIVE PIEZOELECTRIC ABSORBER; TIME-VARYING FREQUENCY; HARMONIC EXCITATIONS; STABILITY; LIMITS;

D O I：

10.1016/j.jsv.2014.04.038

中图分类号：

O42 [声学];

学科分类号：

070206 ; 082403 ;

摘要：

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 H-2 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. (C) 2014 Elsevier Ltd. All rights reserved.

引用

页码：4073 / 4083

页数：11

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