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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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Поддерживает ввод нескольких поисковых фраз (по одной на строку). При поиске обеспечивает поддержку морфологии русского и английского языка
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Применить Всего найдено 2. Отображено 2.
11-08-2023 дата публикации

Cleaning system and process for waste gas emission pipeline of chemical washing tower

Номер: CN116571519A
Автор: CHEN XIN, RUI BIN
Принадлежит:

The invention discloses a cleaning system and technology for a waste gas emission pipeline of a chemical washing tower, the cleaning system comprises a workbench and two bearing frames, and the two bearing frames are slidably arranged on the front side and the rear side of the top of the workbench correspondingly. According to the cleaning system for the waste gas emission pipeline of the chemical washing tower, the self-positioning cleaning mechanism, the pulling-removing mechanism and the screwing deep cleaning mechanism are arranged between the workbench and the bearing frame, so that the cleaning device can clean the waste gas emission pipeline through the cooperation of the self-positioning cleaning mechanism, the pulling-removing mechanism and the screwing deep cleaning mechanism; according to the pipeline cleaning device, the pipeline needing to be cleaned can be automatically positioned, scraped and cleaned, dirt and impurities which are scraped in a concentrated mode can be continuously ...

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Номер записи: 1
12-05-2023 дата публикации

Wheel-rail contact point calculation method

Номер: CN116108329A
Автор: CUI XIAO, GUI ANFU, JIA CHENGHONG, LIU ZHANYU, XIANG PAN, YANG FAN, RUI BIN, LIN JINGDONG, WANG SONG, HE FAN
Принадлежит:

The invention provides a wheel-rail contact point calculation method. The wheel-rail contact point calculation method comprises the following steps: S1, selecting a wheel-rail local coordinate system and a wheel-rail global coordinate system; s2, selecting a wheel set posture description mode; s3, carrying out segmented fitting on profiles of the wheels and the steel rails; s4, calculating the penetration amount of the profile of the wheel track; and S5, the wheel-rail contact point position is obtained, and Euler parameters are adopted in the step S2. According to the method, a technical route of a trace method based on profile fitting is adopted, Euler angles are replaced by Euler parameters in a wheel set attitude description mode selection link, the universality of attitude description of a wheel-rail contact point solving algorithm is improved, the problem of singularity of the Euler angles is solved, and the method can be conveniently integrated into multi-body dynamics solving.

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Номер записи: 2