Optimal Control of Seismic Response of Structures

结构地震响应的优化控制

• 批准号: 03650380
• 负责人: SATO Tadanobu
• 金额: $ 1.47万
• 依托单位: KYOTO UNIVERSITY
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for General Scientific Research (C)
• 财政年份: 1991
• 资助国家: 日本
• 起止时间: 1991 至 1992
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-03650380/
• 关键词: Optimal control; Neural network; Adaptive control; Open-closed law; Seismic input energy; Structural dynamics; Active mass damper; Tendon contorol; 制御効率; 自己学習機能; 免震構造物; 制震構造物; 最適制御; 動的相互作用; 入力地震動特性; 地震エネルギ-; 自動制御機能

We developed a new closed-open-loop optimal control law that has been derived by minimizing the sum of the quadratic time-dependent performance index and the dynamic energy input to the structural system. Three types of input energy are considered that are the seismic energy, control force energy and the sum of both energy. This control law is simple and reliable for on-line control operations because control force does not depend on the rigidity of structural system. The control efficiency affected by two weighting matrices included in the performance index is investigated in detail. Using the concept of neural network we have developed an algorithm to implement the developed control law into structural system for controlling seismic response of structures. The algorithm consists of two parts. One is an identification mode in which the back propagation learning process is applied to identify the structural parameters such as mass, damping and stiffness matrices. The other is a controller mode in which the time-dependent performance index consisting of response and control force vectors as well as the seismic energy input to the structure system is minimized. To realize a practical control device of active mass damper (AMD) type for high-rise buildings we also implemented this new algorithm into an eight story building model with AMD system and checked feasibility to control seismic response of the structure. Numerical examples are worked out to demonstrate the control efficiency of the proposed algorithms.

我们开发了一种新的闭环开环最优控制律，该控制律是通过最小化二次时间相关性能指数和结构系统动态能量输入的总和而导出的。考虑三种类型的输入能量，即地震能量、控制力能量以及这两种能量的总和。该控制律简单、可靠，适合在线控制操作，因为控制力不依赖于结构系统的刚度。详细研究了性能指标中包含的两个权重矩阵对控制效率的影响。利用神经网络的概念，我们开发了一种算法，将开发的控制律实施到结构系统中，以控制结构的地震响应。该算法由两部分组成。一种是识别模式，其中应用反向传播学习过程来识别质量、阻尼和刚度矩阵等结构参数。另一种是控制器模式，其中由响应和控制力矢量以及输入到结构系统的地震能量组成的与时间相关的性能指标被最小化。为了实现高层建筑主动质量阻尼器 (AMD) 型的实用控制装置，我们还将这种新算法应用到带有 AMD 系统的八层建筑模型中，并检查了控制结构地震响应的可行性。数值例子证明了所提出算法的控制效率。

项目成果

佐藤 忠信 土岐 憲三 望月 俊宏: "構造物への入力地震動を考慮した最適変動制御に関する研究" 京都大学防災研究所年報. 第35号B-2. 17-27 (1992)

Tadanobu Sato、Kenzo Toki、Toshihiro Mochizuki：“考虑结构地震运动输入的最佳波动控制研究”京都大学防灾研究所年度报告第 35 B-2 号（1992 年）。

佐藤 忠信: "ニューラルネットワークを用いた構造物の最適震動制御" アクティブ制震(振)シンポジウム論文集. 109-116 (1992)

Tadanobu Sato：“使用神经网络优化结构振动控制”主动地震控制研讨会论文集 109-116 (1992)。

Tadanobu SATO: "Optimal Control of Seismic Response of Structures Using the Concept of Neural Network" Trans. Japan National Symp. on Active Structural Response Control. 109-116 (1992)

Tadanobu SATO：“利用神经网络概念对结构地震响应的优化控制”Trans。

Tadanobu SATO: "Optimal Control of Structures Taking into Account the Dynamic Soil-structure Interaction" Proc. of Colloquim on Control of Structures. PartB. 257-264 (1991)

Tadanobu SATO：“考虑动态土壤-结构相互作用的结构优化控制”Proc。

Tadanobu SATO: "Optimal Control of Structures Taking into Account Input Ground Motion" Annuals Disas. Prev. Res. Inst., Kyoto Univ.No.35B-2,. 17-27 (1992)

Tadanobu SATO：“考虑输入地面运动的结构优化控制”年度灾难。