基于线性规划的张拉整体结构位移优化控制
发布时间：2018-08-01 17:22
【摘要】：针对结构在外界荷载下的主动控制问题,提出基于线性规划的张拉整体结构的位移优化控制模型,通过改变结构构件长度调整节点坐标、修正结构形态至一个更有利的状态.该模型以结构位移为优化目标,以作动器的主动变形量为控制变量,以结构工作状态系数、作动器参数为约束条件,选取三棱柱张拉整体单元为例,研究不同工况、不同控制指标、不同作动器数量及布置情况下的位移优化控制.设计具有主动单元的张拉整体结构模型,验证了理论模型和方法的有效性与可行性.结果表明,通过引入作动器主动调节构件长度,可以实现结构的形态调整,达到位移控制目标.
[Abstract]:To solve the active control problem of structure under external load, a displacement optimal control model based on linear programming for tensioning whole structure is proposed. By changing the length of structural members and adjusting the coordinate of nodes, the shape of the structure can be modified to a more favorable state. The model takes the structural displacement as the optimization objective, takes the active deformation of the actuator as the control variable, takes the working state coefficient of the structure and the parameters of the actuator as the constraint condition, and selects the three-prism tensioning integral unit as an example to study the different working conditions. Optimal control of displacement with different control index, number and arrangement of actuators. A tensioning integral structure model with active elements is designed to verify the validity and feasibility of the theoretical model and method. The results show that the configuration adjustment of the structure can be realized and the displacement control goal can be achieved by introducing actuators to adjust the length of the components.
【作者单位】： 浙江大学空间结构研究中心;
【分类号】：O221.1;O231
，
本文编号：2158293
[Abstract]:To solve the active control problem of structure under external load, a displacement optimal control model based on linear programming for tensioning whole structure is proposed. By changing the length of structural members and adjusting the coordinate of nodes, the shape of the structure can be modified to a more favorable state. The model takes the structural displacement as the optimization objective, takes the active deformation of the actuator as the control variable, takes the working state coefficient of the structure and the parameters of the actuator as the constraint condition, and selects the three-prism tensioning integral unit as an example to study the different working conditions. Optimal control of displacement with different control index, number and arrangement of actuators. A tensioning integral structure model with active elements is designed to verify the validity and feasibility of the theoretical model and method. The results show that the configuration adjustment of the structure can be realized and the displacement control goal can be achieved by introducing actuators to adjust the length of the components.
【作者单位】： 浙江大学空间结构研究中心;
【分类号】：O221.1;O231
，
本文编号：2158293
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