智能结构中应变传感器布局研究

Investigation on Optimal Placement of Sensors of Smart Structures

针对智能结构实时监测中传感器布点优化问题,本文在信息熵理论和应变柔度矩阵相结合基础上给出柔度应变信息熵定义,并提出了基于柔度应变信息最大熵原理的传感器优化布局方法。最后以一个四端简支板仿真算例和试验,对上述方法可行性进行分析研究,研究结果表明该方法能有效实现应变传感器优化配置。

In order to optimize the placement of strain sensor of smart structures, a new concept about the flexibility strain information entropy and strain sensor optimal placement method is proposed based on the combination of the information entropy theory and the strain flexibility. The optimized placement of the sensor is obtained according to the maximum entropy principle. The feasibility analysis on the proposed method is made according to a composite material plank experiment. The results show that the method is feasible and effective for strain sensor optimal placement in smart structures.