基于时域损伤识别的单一类型信号传感器布置优化方法

Arrangement Optimization for Single Type Sensor based on Time Domain Damage Identification

各类建筑在使用过程中总是不断积累损伤,这将给人员财产安全带来巨大的隐患,因此需要寻找能更准确地识别建筑的损伤位置和程度的方法。基于时域单一类型信号的损伤识别方法有着巨大的优势,可以利用较少传感器在较短时间内识别建筑的损伤,再通过合理布置传感器的位置可以获得更准确的识别结果。本文从理论上提出了单一类型传感器优化布置的方法,并通过三维框架算例进行了验证。

Structural damages will accumulate during the service of structures,which could bring huge risks to human lives and properties. Thus,it is of great importance and urgency to develop identification methods which can accurately detect the position and status of structure damages. The damage identification approach based on the time domain single type sensor is of certain advantages such as the high identification speed with fewer sensors. The detection result can be further improved by reasonable optimization of the sensor arrangement. Thus,an optimization approach is proposed for the arrangement of single type sensors. The performance and effectiveness are verified by a three-dimensional frame example.