Hoisting device real-time safe operation index determining method based on crack expansion information

• Main Authors: JIA MINPING, XU FEIYUN, HU JIANZHONG, ZHAO JUN'AI, ZHU LIN, HUANG PENG
• Format: Patent
• Language: English
• Published: 20.01.2016
• Subjects: CALCULATING; COMPUTING; COUNTING; ELECTRIC DIGITAL DATA PROCESSING; MEASURING; PHYSICS; TESTING; TESTING STATIC OR DYNAMIC BALANCE OF MACHINES ORSTRUCTURES; TESTING STRUCTURES OR APPARATUS NOT OTHERWISE PROVIDED FOR

The invention discloses a hoisting device real-time safe operation index determining method based on crack expansion information. The method comprises steps of S1: determining key damaged positions of a hoisting device; S2: acquiring real-time stress data of the key positions of the hoisting device; S3: processing and solving the stress data of the root; S4: solving the real-time crack expansion length; S5: determining the best remaining overload time; S6: determining the best overload load in the rated life; and S7: determining the instant limit overload load. According to the invention, considering the damage processes, the best remaining overload time of operation of follow-up devices, the best overload load in the rated life and the instant limit overload load can be determined based on the existing damage degree; those data are displayed to operators via meters in real time, which will help the operators to know the current states of the current devices and guide the operators to finish follow-up optimal operation.