桥梁损伤识别方法、装置及终端设备

• Format: Patent
• Language: Chinese
• Published: 19.11.2024
• Subjects: CALCULATING; COMPUTING; COUNTING; DATA PROCESSING SYSTEMS OR METHODS, SPECIALLY ADAPTED FORADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL, SUPERVISORYOR FORECASTING PURPOSES; ELECTRIC DIGITAL DATA PROCESSING; PHYSICS; SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE,COMMERCIAL, FINANCIAL, MANAGERIAL, SUPERVISORY OR FORECASTINGPURPOSES, NOT OTHERWISE PROVIDED FOR

本发明适用于桥梁损伤识别技术领域，提供了一种桥梁损伤识别方法、装置及终端设备，该方法包括：获取目标桥梁多个位置的宏应变数据；将每个位置的宏应变数据均分解为多个IMF分量；对于任意一个宏应变数据对应的多个IMF分量，根据各个IMF分量的Hilbert边际谱和Hilbert能量谱，确定最优IMF分量；计算各个最优IMF分量的瞬时振幅，并根据各个瞬时振幅进行自相关函数计算和互相关函数计算，得到瞬时振幅相关矩阵；基于瞬时振幅相关矩阵对目标桥梁进行损伤识别。本发明能够准确识别中小跨径桥梁损伤，且不依赖健康无损数据，具有良好的适应性。 The invention is suitable for the technical field of bridge damage identification, and provides a bridge damage identification method and device and terminal equipment, and the method comprises the steps: obtaining macro strain data of a plurality of positions of a target bridge; decomposing the macro strain data of each position into a plurality of IMF components; for a plurality of IMF components corresponding to any macro strain data, determining an optimal IMF component according to the Hilbert marginal spectrum and the Hilbert energy spectrum of each IMF component; calculating the instantaneous amplitude of each optimal IMF component, and performing autocorrelation function calculation and cross-correlation function calculation according to eac