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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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Мониторинг СМИ

Мониторинг СМИ и социальных сетей. Сканирование интернета, новостных сайтов, специализированных контентных площадок на базе мессенджеров. Гибкие настройки фильтров и первоначальных источников.

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Применить Всего найдено 3. Отображено 3.
26-05-2023 дата публикации

Turbine guider and exhaust area measuring method thereof

Номер: CN116164695A
Автор: FU XINGHAO, CHENG RONGHUI, HUANG YUJUAN, MA ZHILE, LI JI, YANG KE, QU YUNFENG
Принадлежит:

The invention provides a turbine guider and an exhaust area measuring method thereof, and belongs to the technical field of aero-engines. When the measuring method is used for measuring the width of an exhaust window, the measuring planes of a left blade and a right blade are respectively perpendicular to respective stacking shafts, and the radial heights of mutually corresponding scanning curves of the left blade and the right blade are consistent; the window width is obtained based on the shortest distance between the blade profiles of the same radial height and is better matched with the actual width direction of the exhaust window. According to the method, during width measurement, the selectable radial height is not limited by the measurement method, a width measurement plane can be selected at will according to actual needs, the method has better applicability to bent and twisted blades and blades with complex exhaust window width distribution rules along the radial direction, and ...

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Номер записи: 1
08-08-2023 дата публикации

Chemical fiber filament online defect detection method and detection system

Номер: CN116563276A
Автор: FU XINGHAO, CAO BIN, HU JIANGHONG, CHEN LIMING, YUAN SHUAIPENG, YANG XU, ZHAO CHAO
Принадлежит:

The invention discloses a chemical fiber filament online defect detection method and detection system, and belongs to the technical field of image processing, and the method comprises the following steps: S1, constructing a machine learning model; s101, collecting defect images of the chemical fiber filaments; s102, training defect images: firstly, carrying out feature solution on the collected defect images one by one to obtain A gray features and B shape features, and then forming feature vectors by the A gray features and the B shape features of each defect image; finally, the feature vector serves as an input layer of a machine learning model, the defect category serves as an output layer result, and the machine learning model is trained; s2, acquiring an image to be detected; s3, carrying out image calibration; s4, defect detection; firstly, a to-be-detected image is subjected to image preprocessing; and importing an image preprocessing result into a machine learning model to obtain ...

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Номер записи: 2
01-08-2023 дата публикации

Axial symmetry type drag reduction cover and molded line parametric modeling method thereof

Номер: CN116522491A
Автор: CHENG RONGHUI, FU XINGHAO, MA ZHILE, HUANG YUJUAN
Принадлежит:

The method comprises the steps that the front edge/the tail edge of the molded line of the resistance reduction cover is configured to be in an arc shape, and the connecting line of the circle centers of the arc shapes of the front edge/the tail edge is a symmetry axis; determining an end point of a symmetric axis according to the axial limiting length of the drag reduction cover, symmetrically offsetting the symmetric axis towards two sides by a preset distance to construct a maximum width line of the drag reduction cover, and determining a profile control point of the drag reduction cover by combining the maximum width axial relative position; giving the radius of a front/trailing edge small circle, and determining the center position of the front/trailing edge small circle; the front/tail edge small circle of the drag reduction cover and the symmetry axis respectively have two intersection points, a front/tail edge molded line tangent point position coefficient is constructed, the arc-shaped ...

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Номер записи: 3