起重运输机械Issue(9)：51-57,7.
塔式起重机振动的模态空间最优控制
摘要
Abstract
A modal vibration controller based on the complex finite element model of a tower crane was studied and the control model as well as the installation sites for sensors and actuators on the tower crane structure were designed.Given that the vibration of the tower crane in modal space is decoupled,the necessary modes to be controlled were extracted according to the results of modal analysis.The modal reduction and modal coordinates of the tower crane were obtained through modal transformation.An optimal controller in modal space was then developed,and its control effectiveness was simulated.The results of both time-domain and frequency-domain analyses indicate that the vibration of the tower arm and tower body decays rapidly under the influence of the controller.However,there are still some limitations,such as the difficulty in adjusting the controller parameters and the tendency of the controller to become unstable.Optimization can be realized by appropriately adding more sensors and actuators.关键词
塔式起重机/有限元/主动控制/模态控制/振动Key words
tower crane/finite element method/active control/modal control/vibration分类
机械制造引用本文复制引用
周红宇,程文明,孙翊然..塔式起重机振动的模态空间最优控制[J].起重运输机械,2025,(9):51-57,7.基金项目
国家自然科学基金(51675450)、四川省轨道交通运营与维修技术装备重点实验室开放研究项目(2020YW002) （51675450）
