噪声与振动控制2018，Vol.38Issue(1)：177-181,5.DOI:10.3969/j.issn.1006-1355.2018.01.035
含损伤板的动载荷识别精度研究
Research on the Accuracy of Dynamic Load Identification for Damaged Plates
摘要
Abstract
The problem of dynamic load identification is studied.The influence of the identification information,the number of sensors and the layout of the sensors on the accuracy of the identification is analyzed.Firstly,the influence of the damage on the load recognition results is studied on the basis of the theory of time domain forward method. Then, the influence of the position of the measurement points and the sampling time interval on the recognition accuracy is analyzed. The results show that this method can effectively identify the load of the non-damaged location, but the accuracy of identification for the damaged location is low. By optimizing the arrangement of the sensor and selecting the appropriate sampling time interval,the recognition accuracy can be greatly improved.This work may provide a reference for raising the accuracy of load identification.关键词
振动与波/载荷识别/时域正演法/损伤/测点位置/采样时间间隔Key words
vibration and wave/load identification/forward analysis in time domain/damage/measurement point position/sampling time interval分类
数理科学引用本文复制引用
周凤,缪炳荣,陈翔宇,王名月,杨忠坤..含损伤板的动载荷识别精度研究[J].噪声与振动控制,2018,38(1):177-181,5.基金项目
国家自然科学基金资助项目(51375405) （51375405）
国家重点实验室基金资助项目(2016TPL_T10) （2016TPL_T10）
