20-04-2011 дата публикации
Номер: CN0102023185A
Принадлежит:
The invention discloses an acoustic emission locating detection method for defects of a crane boom, which comprises the following steps of: S1, determining to-be-detected parts of the crane boom; S2, determining the number of channels of an acoustic emission detecting instrument according to the number of the to-be-detected parts and selecting needed acoustic emission sensors; S3, determining a pattern of locating the defects according to a section shape of the boom and an unfolded shape, namely an arrangement pattern of the acoustic emission sensors; and S4, determining acoustic emission locating events by using the selected acoustic emission sensors and the acoustic emission detecting instrument in the process of loading and load preserving of the crane, and determining the defect grade of the boom according to the determined acoustic emission locating events. According to the method of the invention, the position of active defects of the craned boom structure can be located through acoustic ...
Подробнее