超声相控阵检测技术在风电高强螺栓中的应用

Application of Ultrasonic Phased Array Inspection Technology in High Strength Bolt of Wind Turbine

针对在役风电机组中螺栓不便拆卸的特点,比较分析了常规超声与超声相控阵检测技术的特点,凸显超声相控阵检测的优势。对带有人工缺陷的螺栓试样进行试验检测,试验结果表明,超声相控阵检测技术能够成功检测出螺纹根部缺陷,并且具有较高的检测灵敏度及分辨力,从而降低检测成本,提高检测效率。

In view of the inconvenient disassembly of bolts in service wind power,the advantages of ultrasonic phased array detection are highlighted by comparing and analyzing the characteristics of conventional ultrasonic and ultrasonic phased array detection technology.The test results of bolt samples with artificial defects show that the ultrasonic phased array detection technology can successfully detect the screw root defects,and has high detection sensitivity and resolution,so as to reduce the detection cost and improve the detection efficiency.