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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 5. Отображено 5.
11-04-2023 дата публикации

Centrifugal impeller blade generation method based on free-form surface blade neutral surface

Номер: CN115952604A
Автор: JI CHENG, XI GUANG, WANG ZHIHENG
Принадлежит:

The invention discloses a centrifugal impeller blade generation method based on a free-form surface blade neutral surface, which comprises the following steps: acquiring blade data, and extracting a plurality of curved surface structure lines as blade mean camber lines; calculating meridian thickness distribution of the height of each leaf; calculating the actual normal thickness corresponding to any point on the mean camber line of each blade; calculating the position interval of the ellipse-like head on the leaf-shaped line; dispersing the mean camber line into a plurality of coordinate points; drawing a thickness circle by taking the coordinate point as the circle center and the actual normal thickness as the diameter, and obtaining the coordinate points of the pressure surface and the suction surface at the corresponding blade height after intersecting with the revolution surface of the corresponding mean camber line; fitting the coordinate points to obtain leaf-shaped lines of the ...

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Номер записи: 1
09-06-2023 дата публикации

Semi-open type centrifugal impeller parameterized modeling generation method and grid topology method

Номер: CN116244848A
Автор: JI CHENG, XI GUANG, WANG ZHIHENG
Принадлежит:

The invention discloses a semi-open type centrifugal impeller parameterized modeling generation method and a grid topology method.The parameterized modeling generation method comprises the steps that initial main blade neutral face shape data, blade thickness distribution data, the blade number, a front edge blade top gap value and a tail edge blade top gap value serve as input, and a parameterization method is adopted; and generating a free-form surface blade and a non-axisymmetric wheel disc surface with a free-form surface model, forming a geometric entity by using all generated curved surfaces, and generating a closed computational domain. An extension line of a blade root line of a neutral surface of a main blade is used as a wheel disc line, the wheel disc line is rotated to generate an initial wheel disc surface, and after the initial wheel disc surface is segmented and reconstructed, a non-axisymmetric wheel disc surface is generated and can adapt to non-uniform flow in the centrifugal ...

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Номер записи: 2
30-06-2023 дата публикации

Parameterization generation method and grid topology method for semi-open type centrifugal impeller with splitter blades

Номер: CN116361935A
Автор: JI CHENG, XI GUANG, WANG ZHIHENG
Принадлежит:

The invention discloses a parameterization generation method and a grid topology method for a semi-open type centrifugal impeller with splitter blades, and the parameterization generation method aims at any semi-open type centrifugal impeller with splitter blades. Initial main blade neutral surface shape data, blade thickness distribution data, splitter blade front edge positions, splitter blade deflection angles, blade numbers and front/tail edge blade top clearance values are used as input to generate free-form surface main blades, non-uniform splitter blades with shapes different from those of the main blades and non-axisymmetric wheel disc surfaces with free-form surface shapes; and a closed computational domain is generated, so that automatic parameterization generation of the semi-open centrifugal impeller with a complex full-three-dimensional model can be realized, and the design period is shortened. The grid topology method is matched with the parameterized modeling method, after ...

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Номер записи: 3
05-05-2023 дата публикации

Coaxial-sleeve-based carbon dioxide energy storage and geothermal heat compensation system and operation method

Номер: CN116066195A
Автор: LI RUIXIONG, LING LANNING, ZHAO JING, WANG HUANRAN, YAO ERREN, XI GUANG
Принадлежит:

The invention discloses a carbon dioxide energy storage and geothermal heat compensation system based on a coaxial sleeve and an operation method. The system comprises a carbon dioxide compressor unit, a carbon dioxide expansion unit, a modified coaxial sleeve type buried pipe, a heat pump system, a throttling cold storage device and a liquid storage tank. An existing coaxial sleeve is improved, the original physical property of the sleeve is utilized, the pipeline space of the inner pipe is used for storing liquid carbon dioxide, use of a liquid storage tank and the ground space is reduced, and the economical efficiency and safety of the system are improved; high-temperature source water stored in the space of the annular pipeline achieves supplement of geothermal energy and sustainable utilization of terrestrial heat in the non-heat-supply period, and the transformed spiral flow channel also solves the problem that in the terrestrial heat supplement process, the heat supplement demand ...

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Номер записи: 4
09-05-2023 дата публикации

Half-blade high-collaboration jet flow control jet flow channel structure and impeller mechanical blade

Номер: CN116085306A
Автор: XU RUILING, WANG ZHIHENG, LEE DONG HEE, XI GUANG
Принадлежит:

The invention provides a half-blade high-collaboration jet flow control jet flow channel structure and a turbomachinery blade. The half-blade high-collaboration jet flow control jet flow channel structure comprises a blade body. A blowing groove is formed in the front edge of a blade high suction surface of a near-end wall part of a blade main body, an air suction groove is formed in a high-pressure position of a tail edge of a suction surface of the blade main body, a front edge channel is arranged between the air suction groove and the blowing groove, the front edge channel is tangent to the suction surface of the blade at the position of the blowing groove, and an arc part of the blowing groove is connected with the air suction groove at the tail edge through a straight equal-width channel. The blade molded line between the air suction groove and the air blowing groove is provided with a sinking structure in the y direction, and the blade main body keeps the original molded line; based ...

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Номер записи: 5