Bearing fault non-contact acoustic signal detection device and method

• Main Authors: WU JIAXIN, ZHANG ZHENG, WU LIQUN, WANG ZE'EN, WU GUANWU, ZHANG YIFAN
• Format: Patent
• Language: Chinese; English
• Published: 22.08.2023
• Subjects: CALCULATING; COMPUTER SYSTEMS BASED ON SPECIFIC COMPUTATIONAL MODELS; COMPUTING; COUNTING; MEASURING; PHYSICS; TESTING; TESTING STATIC OR DYNAMIC BALANCE OF MACHINES ORSTRUCTURES; TESTING STRUCTURES OR APPARATUS NOT OTHERWISE PROVIDED FOR

The invention discloses a bearing fault non-contact sound signal detection device and method, and the method comprises the following steps: enabling the defect part of a rotating to-be-detected bearing to act with other parts of the bearing to generate a time sequence phase difference wave packet; the time sequence phase difference wave packet is amplified under the action of a sound superstructure arranged on the bearing to form a vortex pulse sound soliton signal; outputting a vortex pulse sound soliton signal; the sound detection mechanism detects the sound field focusing degree of vortex pulse sound soliton signals, determines a final measurement plane and collects transmitted sound pulse signals; amplifying the acquired signal; carrying out decomposition analysis on the detection signal; the method comprises the following steps: collecting sound vortex signals, obtaining a corresponding data set, training and learning the data set, taking vibration signals under different time scales as input, fusing a p