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面向节点的网格结构损伤定位方法

Keywords: 网格结构,损伤定位,面向节点,BP神经网络

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Abstract:

为了提高诊断效率与诊断结果的可靠性,根据网格结构的杆件单元数总是大于节点数的特点以及网格结构连续化分析的思想,提出了基于BP神经网络的面向节点的结构损伤定位方法,即以结构中与损伤杆件相关联的节点来指示其损伤位置,并作为神经网络的输出参数.结合结构损伤的三步诊断策略,通过对一个平面桁架的损伤诊断,验证了方法的有效性.

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