当前位置: X-MOL 学术J. Vib. Control › 论文详情
Our official English website, www.x-mol.net, welcomes your feedback! (Note: you will need to create a separate account there.)
A novel approach of active control of structures based on the critically damped condition
Journal of Vibration and Control ( IF 2.8 ) Pub Date : 2020-07-15 , DOI: 10.1177/1077546320944300
Hadi Rashidi 1 , Karen Khanlari 2 , Panam Zarfam 1 , Mohsen Ghafory-Ashtiany 3
Affiliation  

In this research, the active control of structures based on the critically damped condition was proposed for reducing displacements and drifts of structures under seismic loading. In this approach, the second-order dynamic equation is converted into a first-order dynamic equation and a first-order derivative operator with the same constants, which satisfy critically damped conditions of the system. Based on this concept and using the defined performance index, the feedback gain matrix of the structural velocity is obtained. In the method of active control of structures based on the critically damped condition, the control force, which is the linear definition of the feedback gain matrix and the structural velocity, is exerted on the structure in each time step. Four types of numerical examples are examined to the comparison verification of active control of structures based on the critically damped condition with the classical linear optimal control, standard model predictive control, and other methods proposed in several references. Programming and calculations are done by Mathcad prime mathematical software.



中文翻译:

基于临界阻尼条件的结构主动控制新方法

在这项研究中,提出了一种基于临界阻尼条件的主动控制结构,以减少地震荷载作用下的结构位移和漂移。在这种方法中,将二阶动态方程式转换为具有相同常数的一阶动态方程式和一阶导数运算符,它们满足系统的临界阻尼条件。基于此概念并使用定义的性能指标,可以获得结构速度的反馈增益矩阵。在基于临界阻尼条件的结构主动控制方法中,控制力是反馈增益矩阵和结构速度的线性定义,它在每个时间步长上施加到结构上。研究了四种类型的数值示例,用于基于临界阻尼条件的结构主动控制与经典线性最优控制,标准模型预测控制以及其他参考文献中提出的其他方法的比较验证。编程和计算由Mathcad主数学软件完成。

更新日期:2020-07-16
down
wechat
bug