压电智能梁振动控制的遗传算法优化设计

应用遗传算法，对用离散分布压电作动－传感元件的智能梁进行振动主动控制，研究其结构优化设计问题。考虑控制增益的影响，以模态阻尼比为优化准则，用罚函数法对非线性约束优化问题的结束条件进行处理，对直接速度负反馈控制系统中的结构参数进行优化。最后，以悬臂梁为例，分别给出不同控制增益下，单点配置问题和多点并置问题的最优解。

Optimal Control of Vibration Control of Piezoelectric Intelligent Beam Based on Genetic Algorithm

In relation to the active vibration control of an intelligent beam with piezoelectric actuator-sensor components distributed discretely, a study is made on the optimal design of its structure. In the study, the effect of control gain is taken into account; and the modal damping ratio is taken as criterion of optimization;and the constraint condition of nonlinear constrained optimization is processed by using method of penalty function; and the structural parameters in the negative-feedback control system of direct velocity is optimized; and finally, the optimal disposition of single-point juxtaposition and multipoint juxtaposition under different control gains is given respectively.