公开(公告)号：US20150168352A1

公开(公告)日：2015-06-18

申请号：US14418427

申请日：2013-07-11

Applicant: KOREA ADVANCED INSTITUTE OF SCIENCE AND TECHNOLOGY

Inventor： Hoon Sohn ,  Byeong Jin Park

IPC: G01N29/04 ,  G01M7/00 ,  G01N29/24

CPC classification number: G01N29/2418 ,  F03D17/00 ,  F05B2270/8042 ,  G01M5/0016 ,  G01M5/0033 ,  G01M5/0066 ,  G01M5/0091 ,  G01M7/00 ,  G01N29/04 ,  G01N29/043 ,  G01N29/069 ,  G01N29/4427 ,  G01N2291/023 ,  G01N2291/0258 ,  G01N2291/0289 ,  G01N2291/2634 ,  G01N2291/2693

Abstract: Provided is a structural health monitoring system of a rotating object such as a turbine blade, which gives easy and intuitive information to field managers on the damage location and the damage size of the rotating object by computing and visualizing correlations between damage and propagating ultrasonic wave. The structural health monitoring system for a rotating object comprises an ultrasonic generation system which generates an ultrasonic signal by irradiating a pulse laser beam to a point of the rotating object, a pulse laser control system which adjusts the irradiating time of the pulse laser beam, an ultrasonic measurement system which measures a generated ultrasonic signal at a point of the rotating object away from the point irradiated by the pulse laser beam and a damage detection system which provides information of damage existence, damage location and damage severity by visualization of monitored ultrasonic signals.

Abstract translation: 提供了诸如涡轮叶片的旋转物体的结构健康监测系统，通过计算和可视化损伤和传播的超声波之间的相关性，向现场经理在损伤位置和旋转物体的损伤大小上提供简单直观的信息。 用于旋转物体的结构健康监测系统包括：超声发生系统，其通过将脉冲激光束照射到旋转物体的点来产生超声波信号;脉冲激光控制系统，其调节脉冲激光束的照射时间; 超声波测量系统，其测量在旋转对象远离脉冲激光束照射的点处产生的超声波信号;以及损伤检测系统，其通过监视的超声信号的可视化提供损伤存在，损伤位置和损伤严重性的信息。