福州大学学报（自然科学版）2017，Vol.45Issue(4)：459-465,7.DOI:10.7631/issn.1000-2243.2017.04.0459
斜拉索-磁流变阻尼器系统的频域自适应控制
Adaptive frequency-domain control for stay cable-MR damper system
摘要
Abstract
An adaptive control solution to suppress cable vibrations is proposed by synthesizing a frequency-shaped linear quadratic Gaussian (LQG) control with the Hilbert-Huang transform (HHT) technique and considering the magnetorheological (MR) damper dynamics.Based on the transient structural state identified by HHT,adaptive tuning of controller is accomplished to enhance its frequency targeting capability,which also eschews the a priori trial and error on the weight selection usually conducted in the time-domain LQG control.The proposed inverse dynamics based adaptive frequency-domain LQG (iAFLQG) control strategy is numerically verified in comparison with the passive MR damping and the time-domain LQG control,which demonstrates that the iAFLQG control exploits the intrinsic features of the MR damper in a more efficient way to substantially reduce the cable response.关键词
斜拉索/磁流变阻尼器/自适应控制/非线性动力学/随机激励Key words
stay cable/magnetorheological damper/adaptive control/nonlinear dynamics/random excitation分类
通用工业技术引用本文复制引用
陈昭晖,陈宝春..斜拉索-磁流变阻尼器系统的频域自适应控制[J].福州大学学报（自然科学版）,2017,45(4):459-465,7.基金项目
国家自然科学基金资助项目(51608128) （51608128）
福建省自然科学基金资助项目(2016J05123) （2016J05123）
福建省教育厅科技项目(JA15098) （JA15098）
福州大学科技人才基金资助项目(XRC-1457) （XRC-1457）
