Active vibration control for marine applications

被引：94

作者：

Daley, S ^{[1
]}

Johnson, FA

Pearson, JB

Dixon, R

机构：

[1] Univ Sheffield, Dept Automat Control & Syst Engn, Sheffield S1 3JD, S Yorkshire, England

[2] BAE SYST ATC, Chelmsford, Essex, England

[3] BAE SYST Marine, Barrow In Furness, Cumbria, England

[4] ALSTOM Power Technol Ctr, Leicester, Leics, England

来源：

CONTROL ENGINEERING PRACTICE | 2004年 / 12卷 / 04期

关键词：

marine systems; active vibration isolation; active structural control; modal control;

D O I：

10.1016/S0967-0661(03)00135-7

中图分类号：

TP [自动化技术、计算机技术];

学科分类号：

0812 ;

摘要：

A major problem, in isolating large marine machinery rafts, is how best to mitigate against the effects of excited resonances. These generate large forces on the hull and produce undesirable characteristic signatures. The paper describes the development of a new hybrid active/passive mounting system that has the potential to eradicate such signatures by making use of digitally controlled actuators that ignore local displacements while controlling the response of the structure's rigid body modes. Also described in the paper is a method that has been developed for damping flexural modes of vibration in the receiving structure. This further reduces the levels of vibration by directly tackling the mechanism by which the effect of small forces is amplified. The active damping method has recently been successfully demonstrated on a full-scale vessel and a number of key results obtained in the development process are presented. (C) 2003 Elsevier Ltd. All rights reserved.

引用

页码：465 / 474

页数：10