Optimal structural modifications to enhance the active vibration control of flexible structures
Optimal structural modifications to enhance the active vibration control of flexible structures
复制标题
优化结构修改以增强柔性结构的主动振动控制
作者：
N. Khot;V. Venkayya;F. Eastep
本研究提供一种同时整合结构与控制设计以降低结构在干扰下之反应的大型空间结构振动控制方法。的制定的设计方案是通过一些名义有限元模型，这是控制在一个最佳的方式由线性调节器的结构修改，以增加超过标称结构的主动模态阻尼因子。通过使用非线性数学优化技术实现结构修改。目标函数是结构的重量，并对闭环系统的阻尼参数进行约束。通过设计一个具有不同约束值的ACOSS-FOUR模型说明了该算法的应用。
This study provides a method of vibration control of large space structures by simultaneously integrating the structure and control design to reduce the structural response from a disturbance. The formulation of the design scheme is obtained by the structural modification of some nominal finite element model, which is controlled in an optimal fashion by a linear regulator, to increase the active modal damping factor beyond that of the nominal structure. The structural modifications are achieved by using a nonlinear mathematical optimization technique. The objective function is the weight of the structure with a constraint on the damping parameter of the closedloop system. The application of the algorithm is illustrated by designing an ACOSS-FOUR model with different constraint values.