互联结构振动控制元件参数研究

The Vibration Control of Two Structures Connection and Parameter Research of Its Control Elements

针对双塔结构所具有的模型不精确及承受随机外力作用这一特点 ,在控制方法选择方面 ,为保证系统控制的顺利实现 ,本文引入了能够对模型不精确具有较好控制效果的广义预测控制策略 ;在优化目标选择方面 ,为降低控制系统的能量 ,以控制增益矩阵的Frobenius范数做为优化目标 ;在优化算法方面 ,为降低计算工作量 ,引入并改进了传统的遗传算法。通过优化计算得到系统参数几组次优解 ,这些解可以供设计者进行选择。最后给出了计算实例。

Two structures connection have the characteristic of imprecise model and are subjected to stochastic outside force. In the paper, on the control method choice hand, the generalized predictive control, which has better control effect on imprecise model, is adopted to ensure the realization of system control successfully. On the optimum objects choice hand, in order to reduce control system energy, the Frobenius norm of the control matrix is chosen as optimum objects of system control;On the optimum algorithm choice hand, in order to abbreviate the calculation work, an improved genetic algorithm is used to seek the optimum solutions of control matrix. All sub-optimum solutions required can be provided for designers. In the last, a numerical example is presented to show the effectiveness of the method.