To inspect a rounded cap stiffener with one time continuous nondestructive inspection (MDI) procedure.SOLUTION: A multi-sensor NDI probe has means for performing self-alignment of NDI probes in conjunction with movement of a sensor group along length of a hollow elongated stiffener having a rounded cap. The probe comprises: a large-radius curved ultrasonic transducer array with a cylindrical focus, which completely covers the rounded cap; two small-radius convex curved transducer arrays for the NDI of a lower outer curved surface; and two linear transducer arrays for the NDI of side faces of the stiffener. The five transducer arrays are supported by respective compliant assemblies which facilitate proper adjustment of positioning (in other words, a position and a direction) of the transducer arrays during scanning. The positions of the transducer arrays are adjusted to take account of geometric variations in the stiffener.SELECTED DRAWING: Figure 2

    【課題】1回の連続NDI(非破壊検査)手順で丸みを帯びたキャップ補剛材を検査する。【解決手段】マルチセンサNDIプローブは、丸みを帯びたキャップを有する中空の長尺補剛材の長さに沿ったセンサ群の移動に連動してNDIプローブの自己位置合わせを行うための手段を有する。プローブは、丸みを帯びたキャップを完全にカバーする、円筒状のフォーカスを持つ大きい半径の湾曲した超音波トランスデューサアレイと、下部外側曲面のNDI用の2つの小さい半径の凸状湾曲トランスデューサアレイと、補剛材の側面のNDI用の2つの直線状トランスデューサアレイとを備える。5つのトランスデューサアレイは、走査中のトランスデューサアレイの位置決め(すなわち位置および向き)の適切な調整を容易にするそれぞれの追随性アセンブリによって支持される。トランスデューサアレイの位置は補剛材の形状変化を考慮して調整される。【選択図】図2


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    Title :

    APPARATUS FOR NON-DESTRUCTIVE INSPECTION OF STRINGER


    Additional title:

    ストリンガの非破壊検査のための装置


    Contributors:
    DENNIS P SARR (author) / BUI HIEN T (author)

    Publication date :

    2019-04-18


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Japanese


    Classification :

    IPC:    G01N Untersuchen oder Analysieren von Stoffen durch Bestimmen ihrer chemischen oder physikalischen Eigenschaften , INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES / B64C AEROPLANES , Flugzeuge / B64F GROUND OR AIRCRAFT-CARRIER-DECK INSTALLATIONS SPECIALLY ADAPTED FOR USE IN CONNECTION WITH AIRCRAFT , Boden- oder Flugzeugträgerdeckeinrichtungen besonders ausgebildet für die Verwendung in Verbindung mit Luftfahrzeugen



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