摘要
构造了自适应桁架结构的多目标最优控制模型 .利用结构中主动杆件的调节作用 ,综合考虑结构的强度、位移和控制能耗 ,提出了实现自适应桁架结构处于最佳工作状态的最优控制模型 .通过引入权系数的方法 ,使问题成为一个目标为二次、约束为线性的二次规划问题 .利用该模型对智能结构进行控制 ,可以使结构处于最佳工作状态 .用数值方法模拟了模型对结构的控制效果 ,实例表明方法具有很好的控制能力 .
A multi-objective optimum control model is established. Using the adjustable function of active members and considering the strength, displacement of node and energy consumption, an optimum control model of adaptive trusses working in the optimal status is presented. By dopting the method of minimax and making the strength index and precision index be differential, the problem becomes easier to be solved. Using this model to the control of a smart structure, it's found that we can make the structure working in an optimal status. Numerical example illustrates that this method has good ability to control the structure.
出处
《固体力学学报》
CAS
CSCD
北大核心
2004年第2期237-240,共4页
Chinese Journal of Solid Mechanics
基金
北京市自然科学基金 ( 3 0 0 2 0 0 2 )
北京市教委 (KM2 0 0 410 0 0 5 0 19)资助
