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基于神经网络的结构动力模型修改和破损诊断研究
引用本文:徐宜桂 史铁林. 基于神经网络的结构动力模型修改和破损诊断研究[J]. 振动工程学报, 1997, 10(1): 8-12
作者姓名:徐宜桂 史铁林
作者单位:华中理工大学机械学院
摘    要:提出了一种基于神经网络的结构动力模型修改和破损诊断方法,讨论并解决了该法实施中的若干技术问题,如神经网络的拓扑结构的快速算法,结构模态特性的量化比较,结构破损特征信息的提取和处理,计算结果精度的提高等等。

关 键 词:神经网络 结构动力模型 模型修改 结构诊断

Structural Dynamic Model Modification and Damage Diagnosis Method Based on Neural Networks
Xu Yigui Shi Tielin Yang Shuzi. Structural Dynamic Model Modification and Damage Diagnosis Method Based on Neural Networks[J]. Journal of Vibration Engineering, 1997, 10(1): 8-12
Authors:Xu Yigui Shi Tielin Yang Shuzi
Abstract:A new structural dynamic modal modification and structural damage diagnostic method based on neural networks is presented in this paper, and some keys problems related to the method such as the neural networks topologic architecture and fast learning algorithms, the quantitative comparison of structural modal properties, the extraction and processing of characteristic information on faults location and extent, the improving of computing precision etc, are discussed and solved, computing results show that the dynamic modal modification method based on neural networks have not some difficult problems which must be dealt with when using other modification method, and have high modification precision. The diagnostic method based on neural networks can determinate precisely the faults extents as well as faults location.
Keywords:neural networks  dynamic structural analysis  modal modification  structural damage diagnosis  
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