桁架结构振动的主动模糊控制中主动杆数目与位置优化

研究了采用自适应模糊控制器抑制桁架结构振动时的主动杆数目与位置优化问题.通过定义输入能量相关矩阵优化了主动杆的数目.基于主动杆的控制能量配置准则,给出了主动杆优化配置的模型.研究基于整数编码的遗传算法用于大型离散体中的作动器组合优化问题.最后针对挠性空间智能桁架结构的振动控制仿真,使用基于整数编码的遗传算法(GAs)优化主动杆位置.结果表明对于采用自适应模糊控制律的离散体结构振动控制是行之有效的.

Optimal design of number and locations of actuators when adopting the adaptive fuzzy control in active control

This paper presented the optimal design methodology of number and locations of actuators in active vibration control when adopting adaptive fuzzy control. The number of actuators was determined by defining the energy correlative matrix of the modal control force. Based on the total energy of active member forces, the model of optimal locations was studied. The integer coded genetic algorithms (GAs) were adopted to search the optimal locations of the actuators in large discontinuous structures. Finally the simulations of a space smart truss were done, and the results showed that the integer coded genetic GAs and adaptive fuzzy active vibration control were effective.