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Небесная энциклопедия

Космические корабли и станции, автоматические КА и методы их проектирования, бортовые комплексы управления, системы и средства жизнеобеспечения, особенности технологии производства ракетно-космических систем

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Применить Всего найдено 2. Отображено 2.
18-07-2023 дата публикации

Ultrasonic detection evaluation method for wire harness welding quality

Номер: CN116448892A
Автор: MO RUNYANG, HE XU, LEI ZHAOKANG
Принадлежит:

The invention belongs to the technical field of ultrasonic detection, and relates to an ultrasonic detection evaluation method for wire harness welding quality, which comprises the following steps: 1) establishing a wire harness standard sample; 2) obtaining time domain characteristic data corresponding to the standard sample of the wire harness by using an ultrasonic phased array technology, and constructing a data set; 3) training and testing the data set by adopting a machine learning classification algorithm, and constructing a wire harness welding quality evaluation model; and 4) obtaining actual time domain characteristic data of the wire harness test sample according to the method in the step 2), substituting the actual time domain characteristic data into the wire harness welding quality evaluation model, and performing quality evaluation on the wire harness test sample. According to the ultrasonic detection and evaluation method for the wire harness welding quality, the ultrasonic ...

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Номер записи: 1
23-06-2023 дата публикации

Nondestructive testing method and system for self-height of circumferential weld defect of pipeline

Номер: CN116305708A
Автор: ZHANG HONGBO, LIU YAN, MO RUNYANG, HUANG LEI, JIA PENGJUN, YAO HUAN, LAI JIANGANG, CHEN LEILEI
Принадлежит:

The invention discloses a pipeline circumferential weld defect self-height nondestructive testing method and system, mathematical modeling is carried out by using a statistical method, a model is trained by using a deep learning method, a defect self-height real-time prediction model is constructed, and automatic evaluation of the defect height is realized. The defect height prediction model is optimized by using sample data of known defect height and defect parameters to obtain a defect height detection model, the defect height detection model is used for detecting and comparing a test sample to obtain a compensation parameter, and the compensation parameter is used as a compensation prediction result, so that the detection precision can be accurately improved; the method is simple, high in timeliness and high in precision, and can be conveniently popularized and used in the circumferential weld hidden danger checking and quality improvement field of various large pipeline companies. According ...

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Номер записи: 2