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
), 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
), LI Jingming1, ZHANG Shuangnan1, WU Ying1, WANG Yumin1, CAI Guixi1
图3. 一种特殊纵波P1入射形成的头波系统[
Fig.3. A head wave system formed by the incidence of a special longitudinal wave P1 (λ, μ—elastic constants; ρ—density; S—shear wave, P—longitudinal wave; CL—P-wave velocity, CS—shear wave velocity; 1—mediume Ⅰ, 2—mediume Ⅱ; point S—hypocenter; i1—first critical angle; point C(r, z)—arbitrary position on the wavefront in the first medium, r—the horizontal distance from point C to the source; z—vertical distance from point C to the interface)[
