1results about How to "Increased bending stress" patented technology

This invention discloses an intelligent monitoring system and method for steel wire rope safety, belonging to the field of non-destructive testing technology for steel wire ropes. The system includes a three-layer sensor array, a data acquisition and processing unit, a digital twin computing platform, and an intelligent diagnostic and early warning terminal. The three-layer sensor array consists of a pulsed eddy current-leakage magnetic flux composite sensor array, a fiber Bragg grating stress-vibration monitoring unit, and a machine vision surface defect detection module. The pulsed eddy current-leakage magnetic flux composite sensor array includes 12 sensing units evenly distributed along the circumference, employing a three-frequency time-division multiplexing method to achieve layered detection from the surface to the core, with penetration depths of 0.65 mm, 3.5 mm, and 8.5 mm, respectively. The fiber Bragg grating stress-vibration monitoring unit includes three optical fibers and 36 fiber Bragg gratings, reconstructing the three-dimensional stress state of the steel wire rope. The system fuses multi-source data using Dempster-Shafer evidence theory, achieving a false alarm rate of less than 2%, realizing real-time online monitoring and accurate life prediction of the steel wire rope.