航空发动机整体叶环中纤维断丝超声检测方法
武玉鹏1,2, 张博1(), 李经明1, 张双楠1, 吴颖1, 王玉敏1, 蔡桂喜1
Ultrasonic Detection for Fiber Broken in Aero-Engine Integral Bladed Ring
WU Yupeng1,2, ZHANG Bo1(), LI Jingming1, ZHANG Shuangnan1, WU Ying1, WANG Yumin1, CAI Guixi1

图10. 不同时刻的声场分布

Fig.10. The distribution of sound field at different time (CL-Ti—sound velocity of ultrasonic longitudinal waves in titanium alloy; CL-SiC—velocity of ultrasonic longitudinal waves in SiC; 1—water medium; 2—Ti alloy medium; 3—SiC medium)
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(a) t=2.2 μs (b) t=3.45 μs (c) simplified schematic of two head wave systems (d) t=4.9 μs