基于MAC算法的拱坝传感器优化布置  

Optimal Placement of Sensor in Arch Dam Based on MAC Algorithm

作　　者：宋固全[1] 王建伟[1] 余建杰[1,2] 李火坤[1] 

机构地区：[1]南昌大学建筑工程学院,江西南昌330031 [2]南昌航空大学土建学院,江西南昌330063

出　　处：《人民黄河》2012年第2期128-130,共3页Yellow River

基　　金：国家自然科学基金资助项目(50909049);江西省自然科学基金资助项目(2010GQC0119;2007GZW2470)

摘　　要：利用结构湿模态矩阵进行QR分解得到传感器的初始测点位置,并结合模态置信度准则的优点,提出了一种针对水利工程结构的传感器布置方法。采用逐步累积法确定候选添加测点的范围,以拱坝为算例,对拱坝进行了不同数目测点方案的传感器优化布置研究。结果表明,所测向量的MAC矩阵非对角元素值较小,且具有良好的空间交角。Using the structure wet-mode matrix to the initial measuring position of sensor by QR decomposition technology, and combining the advantages of Modal confidence guidelines, a sensor arrangement method of hydraulic structures was proposed. We determined the scope of candidate measuring position by gradual accumulation methods. Taking the arch dam as an example, the research on optimal placement of sensor was based on different number measurement points plan. The results show that the non-diagonal elements of MAC matrix of the measured vector are small, and they have good spatial angle of intersection.

关 键 词：湿模态 MAC 水工结构 传感器 

分 类 号：TV642.4[水利工程—水利水电工程]