ADCDDA model-based 3D printer fault diagnosis method

• Main Authors: LU NINGYUN, LU JIAHENG, ZHU HAIYAN, ZHENG JIERU
• Format: Patent
• Language: Chinese; English
• Published: 23.07.2024
• Subjects: ADDITIVE MANUFACTURING TECHNOLOGY; ADDITIVE MANUFACTURING, i.e. MANUFACTURING OFTHREE-DIMENSIONAL [3-D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVEAGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3-D PRINTING,STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING; CALCULATING; COMPUTER SYSTEMS BASED ON SPECIFIC COMPUTATIONAL MODELS; COMPUTING; COUNTING; ELECTRIC DIGITAL DATA PROCESSING; PERFORMING OPERATIONS; PHYSICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDEDFOR; SHAPING OR JOINING OF PLASTICS; TRANSPORTING; WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL

The invention discloses a 3D printer fault diagnosis method based on an ADCDA model. The method comprises the steps that source domain 3D printer vibration data are collected, and label classification is carried out; processing the multi-dimensional time sequence data into a multi-channel GASF image through a sliding window by adopting a Grubm angle field; training a source domain feature extractor and a class discriminator under the condition of domain constraint by adopting the labeled source domain data and the unlabeled target domain data; training a target domain feature extractor and a domain discriminator by adopting the label-free source domain data and the label-free target domain data; and real-time vibration data of a target domain 3D printer are collected, a GASF image is obtained through a Grubm angle field, and the GASF image is input into the trained ADCDA model to obtain a fault diagnosis result. According to the method provided by the invention, the fault diagnosis requirement of the 3D print