摘要
将传统预测控制方法进行改进并应用于空间网壳结构风致振动控制,采用动态矩阵预测控制理论来定义衰减函数参考轨迹,以适应空间网壳结构的风振控制特点,建立了空间网壳结构风振预测控制系统模型,采用多种结构响应反馈机制,选用典型网壳模型进行风荷载作用下的预测控制计算和控制效果分析.通过改变空间结构模型参数,探讨了空间网壳结构风振的动态矩阵预测控制的鲁棒性.
Ameliorated strategies were put forward to improve the model predictive control in reducing the wind induced vibration of spatial latticed structures. The dynamic matrix control （DMC） predictive method was used and the reference trajectory which is called the decaying functions was suggested for the analysis of spatial latticed structure （SLS） under wind loads. The wind-induced vibration control model of SLS with improved DMC model predictive control was illustrated, then the different feedback strategies were investigated and a typical SLS was taken as example to investigate the reduction of wind-induced vibration. In addition, the robustness and reliability of DMC strategy were discussed by varying the model configurations.
出处
《上海交通大学学报》
EI
CAS
CSCD
北大核心
2009年第6期981-984,989,共5页
Journal of Shanghai Jiaotong University
基金
国家自然科学基金资助项目(50778111)
关键词
空间网壳
风振
动态矩阵控制
预测模型
spatial latticed structure（SLS）
wind-induced vibration
dynamic matrix control （DMC）
prediction model
