WebJun 2, 2024 · Pre-stressed bolted joints are widely used in civil structures and industries. The tightening force of a bolt is crucial to the reliability of the joint connection. Loosening … WebDec 15, 2024 · Recently, for bolt looseness detection, percussion-based methods have attracted more attention due to their advantages of eliminating contact sensors. The core issue of percussion-based methods is audio signal processing to characterize different bolt preloads, while current percussion-based methods all depend on machine …
Autonomous bolt loosening detection using deep learning
WebMar 19, 2024 · Based on test results obtained in this study, it can be concluded that the minimum resolution for bolt looseness detection was 0.5 cm, based on the parameters … WebApr 4, 2024 · Aiming at current serious problems that the bolt looseness can cause heavy damages and the manual bolt looseness detection is ineffective, this study presents a bolt looseness detection method based on Canny edge detector. First, HSV (hue, saturation, value) color space is used to extract the area of mark bar. Then, after expanding, eroding … ferrari maserati of orange county
Autonomous bolt loosening detection using deep learning
WebApr 1, 2024 · The development trend of bolt looseness detection technology is prospected. Abstract. Loosening of threaded fasteners can cause preload decline, induce bolt fatigue fracture, and severely compromise the reliability of mechanical products. Loosening detection is an effective method for early prevention of severe loosening … WebJan 19, 2024 · Aiming at the problem of bolt looseness at the bottom of the train, a double-sided detection method of bolt looseness is proposed. Based on the top and the side … WebJul 27, 2024 · The robotic arm automatically moves the PZT sensors to touch on the flange for bolt looseness detection. The flange is recognized by the cameras using YOLO convolutional neural networks with 944 image samples and located with a feature-based method and bounding boxes. The 3-dimension (3D) world coordinates from the stereo … delivery cepat