高速摄影测量在振动台动力模型试验中的应用  

Application of High Speed Photogrammetry to Vibrating Platform Dynamic Model Test

作　　者：杨会臣[1] 贾金生[1,2] 王海波[1] 

机构地区：[1]中国水利水电科学研究院结构材料研究所,北京100048 [2]中国水利水电科学研究院流域水循环模拟与调控国家重点实验室,北京100038

出　　处：《水电能源科学》2012年第1期153-155,87,共4页Water Resources and Power

摘　　要：针对振动台试验的缩尺模型往往频率很高,采用普通摄像机记录试验过程会丢失很多信息,无法将摄影测量应用于振动台动力模型试验中的问题,利用高速相机记录试验过程,并采用数字图像处理技术获得标示点处的物理量,与传统传感器比较表明,高速摄影测量是一种无接触、全局化、自动化程度高、精度满足试验要求的量测手段,并在Koyna重力坝振动台模型试验中取得了较好效果。Usual digital camera can not be applied in vibrating platform model test for its high frequency, which loses much information during test process. In order to solve the photogrammetry problem in vibrating platform model test, high speed digital camera is used to record the test process and the digital image processing technique is adopted to obtain the physical quantity in identification point. Compared with the traditional sensor, the results show that high speed photo- grammetry is a non-contact, global, highly automatic and high test precision measurement method; good results are ob rained from application in vibrating platform model test of Koyna gravity dam.

关 键 词：高速摄影测量 数字图像处理 振动台动力模型试验 开裂面 

分 类 号：TV323[水利工程—水工结构工程]