The invention discloses a method monitoring fatigue service life of a crane beam; the method comprises the following steps: recording position information of the crane beam; setting position information of fatigue checking computation points for the crane beam; setting up a corresponding stress amplitude function for each the fatigue checking computation point of the crane beam, wherein the stress amplitude function uses hoisting weight and walking position as input variables; using the corresponding stress amplitude function to calculate a stress amplitude formed on the fatigue checking computation point by a hoisting object in each walking process of the crane beam; converting the stress amplitude of the fatigue checking computation point of the crane beam into a stress amplitude cycle index indicating fatigue life. The method can monitor the fatigue service life of the crane beam without needing a stress induction sheet, so monitoring cost and construction difficulty cannot be obviously improved by increasing number of the crane beams and fatigue checking computation points.


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    Title :

    Method monitoring fatigue service life of crane beam


    Contributors:
    WU YUFENG (author) / JIANG YINGQIU (author) / ZHENG JIANHUA (author) / JIN LIZAN (author) / YANG JUE (author) / LENG CHAOQUN (author) / QI CHANGJUN (author) / TANG JIXIANG (author) / NING TAO (author)

    Publication date :

    2015-11-18


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    English


    Classification :

    IPC:    B66C Krane , CRANES / G06F ELECTRIC DIGITAL DATA PROCESSING , Elektrische digitale Datenverarbeitung



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