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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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Форма поиска

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 12. Отображено 12.
25-04-2023 дата публикации

Reliable digital twinning system construction method and device and computer equipment

Номер: CN116011343A
Принадлежит:

The invention relates to a reliable digital twin system construction method and device and computer equipment. The method comprises the following steps: constructing a reliable digital twin model of a physical entity in a digital space according to each component device of the physical entity, a connection relationship among the component devices and an operation characteristic of the physical entity; in a physical space, analyzing the historical operation data of the physical entity, and determining monitoring parameters capable of reflecting the operation state and reliability of the physical entity; and based on the monitoring parameters, establishing an association relationship between the reliable digital twinborn body model and the physical entity, and obtaining a reliable digital twinborn system of the physical entity. The reliability digital twin system constructed by the method can realize the functions of collecting and analyzing the reliability related data of the physical entity ...

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22-08-2023 дата публикации

Aero-engine accessory transmission gear box sealing structure

Номер: CN116624576A
Принадлежит:

The invention belongs to the technical field of engine assembly, and particularly relates to an aero-engine accessory transmission gear box sealing structure. The sealing structure comprises a first sealing shell (1) and a second sealing shell (8), a metal matrix framework (4) is arranged between the first sealing shell (1) and the second sealing shell (8), an annular groove is formed in the face, facing the two sealing shells, of the metal matrix framework (4), and a rubber sealing ring (5) is vulcanized in the annular groove. The rubber sealing ring (5) is provided with a base body (51) and a compressible protrusion (52), wherein the compressible protrusion (52) extends outwards from the center of the base body (51) to the protruding annular groove. The compressible protrusion (52) is extruded by the first sealing shell body (1) and the second sealing shell body (8) only into the annular groove so as to achieve sealing of the first sealing shell body (1) and the second sealing shell body ...

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23-06-2023 дата публикации

Novel integrated high-strength bearing cavity oil supply and heat insulation structure

Номер: CN116291884A
Принадлежит:

The invention belongs to the technical field of aero-engines, and particularly relates to a novel integrated high-strength bearing cavity oil supply and heat insulation structure, through an integrated rear cover assembly structure, an oil supply pipe assembly and a skin heat insulation assembly structure are integrated, the assembly work of a rotor and a stator can be completed under the visual condition, and meanwhile through the design of a jackscrew hole structure, the assembly efficiency is improved. The disassembly work of the rear cover assembly can be very conveniently completed, structures such as a sealing device are prevented from being damaged, and the assembly and disassembly reliability of the bearing cavity oil supply and heat insulation structure is greatly improved; through the inner skin structure with the reinforcing ribs, the skin heat insulation assembly structure is optimized, under the condition of high pressure difference, the outer skin stress and the skin heat ...

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23-07-2008 дата публикации

Projection system and light pipe thereof

Номер: CN0101226256A
Принадлежит:

The invention relates to a light pipe which comprises a first, a second, a third and a fourth optical component, wherein the first optical component is provided with a first caulking groove, the second optical component is opposite to the first optical component and provided with a second caulking groove, the third optical component is connected with the first and second optical components, one end of the third optical component is arranged in the first or second caulking groove, the fourth optical component is opposite to the third optical component and connected with the first and second optical components, one end of the fourth optical component is arranged in the first or second caulking groove, the inner surfaces of the first, second, third and fourth optical components form a light channel. The invention further discloses a projection system. The inventive light pipe has better structure strength, assembly precision and multiple state changes.

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25-06-2008 дата публикации

Projection system and light pipe thereof

Номер: CN0101206279A
Принадлежит:

The invention relates to a projection system and an optical pipe of the system, wherein, the optical pipe comprises an optical pipe body and a first strengthened element; the optical pipe body has an internal surface and an external surface with the internal surface formed into an optical channel; the first strengthened element is arranged on the external surface of the optical pipe body. The invention also discloses a projection system which comprises a light source, a color wheel component and an optical pipe. The invention has better structural strength.

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23-07-2008 дата публикации

Projection system and light pipe thereof

Номер: CN0101226257A
Принадлежит:

The invention relates to a light pipe, which comprises a body and a first position limiter, wherein the body is provided with an inner surface and an outer surface, the inner surface has a light channel, the first position limiter surrounds the outer surface of the body at least along two directions opposite the outer surface of the body. The invention further discloses a projection system which comprises a light source, a color wheel component at one side of the light source and a light pipe between the light source and the color wheel component or on the side of the color wheel component opposite the light source. The light pipe is provided with a body and a first position limiter, while the inner surface has a light channel, the first position limiter surrounds the outer surface of the body at least along two directions opposite the outer surface of the body.

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25-08-2023 дата публикации

Portable multi-shaft drilling and tapping device for end beam threaded hole machining

Номер: CN116638327A
Принадлежит:

A portable multi-shaft drilling and tapping device for end beam threaded hole machining comprises a positioning mechanism, a drilling and tapping mechanism and a telescopic cylinder. The positioning mechanism comprises a fixing base correspondingly matched with an arc-shaped groove of the end beam, connecting flanges capable of being correspondingly attached to the outer wall of the end beam are arranged at the two ends of a base body of the fixing base, and drilling and tapping mechanisms are arranged at the two ends of the fixing base. The drilling and tapping mechanism comprises mounting plates, guide columns and a transfer case, the mounting plates are arranged on the outer sides of the two ends of the fixing base, gaps are reserved between the mounting plates and the connecting flanges, the transfer case is arranged between the mounting plates and the connecting flanges, and the guide columns with the two ends correspondingly connected with the mounting plates and the connecting flanges ...

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18-07-2023 дата публикации

Bearing cavity oil return and ventilation structure with low lubricating oil consumption

Номер: CN116447013A
Принадлежит:

The invention belongs to the field of aero-engines, and particularly relates to a bearing cavity oil return and ventilation structure with low lubricating oil consumption, by designing a bearing cavity oil return oil-gas separation structure, a high-speed rotating gas cavity and a lubricating oil return cavity are isolated, oil and gas in an oil collection cavity are effectively separated, interference of high-speed flowing gas on flowing of lubricating oil in the oil return cavity is reduced, and the lubricating oil in the lubricating oil return cavity is effectively separated. By designing a ventilation oil-gas separation structure of the bearing cavity, oil gas near the ventilation hole is effectively separated, the amount of the lubricating oil entering the ventilation cavity is reduced, the oil return efficiency is improved, and the lubricating oil consumption is reduced.

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16-12-2015 дата публикации

Novel but remote electronic sbrasive belt grinding of centre gripping device

Номер: CN0204868449U
Принадлежит:

The utility model discloses a novel but remote electronic sbrasive belt grinding of centre gripping device, including cantilever crane no. 1, motor, cantilever crane bedplate, band pulley, cantilever crane no. 2, cantilever crane connecting block, the piece links together with cantilever crane no. 1. The utility model discloses simple structure, handling ease and assembly adopt lathe centre gripping, belt transmission structure to realize that power is preceding defeated, effectively solve the difficult problem of barrel arbor because of the narrow unable grinding in space.

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25-06-2014 дата публикации

Method for analytically running programmable scripts on wireless mobile terminal

Номер: CN103885790A
Принадлежит:

The invention aims to disclose a method for analytically running programmable scripts on a wireless mobile terminal. The method includes steps of (1) disposing programmed script files on the wireless mobile terminal; (2) acquiring codes of the scripts in a script analyzer, transplanting the codes on the wireless mobile terminal so that the wireless terminal analyzes and runs the script files; (3) analyzing and running the script files by the wireless mobile terminal via the script analyzer so as to programmably control the wireless mobile terminal. Compared with the prior art, the method has the advantages that users can control common operations of the wireless mobile terminal via a common script language program, the script analyzer of the wireless mobile terminal can analyze and run the scripts if only the users correctly programs the script files and put the same under an assigned catalogue of the wireless mobile terminal, and the purpose of the method is achieved.

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29-08-2023 дата публикации

Channel steel tenon-and-mortise connection structure and punch forming equipment for tenon of channel steel tenon-and-mortise connection structure

Номер: CN116658502A
Принадлежит:

Relates to the technical field of channel steel connection processing, in particular to a channel steel mortise and tenon connection structure and a punch forming device of a tenon thereof, the channel steel mortise and tenon connection structure comprises two vertically corresponding channel steel, two sides of the end of one channel steel are punched off to form the tenon, and the tenon is correspondingly riveted with a notch of the other channel steel; the stamping forming equipment comprises a stamping die set, the stamping die set comprises an upper die and a lower die, two clamping grooves with the ends penetrating through the side face of the lower die are symmetrically formed in the two end faces of the lower die, and the lower die comprises a clamping oral cavity and a clamping inner cavity. A punched hole is formed in the upper surface of the lower die, and the punching face of the upper die is arranged to be a T-shaped face and comprises an edge punching part and a corner trimming ...

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23-06-2023 дата публикации

Self-reconstruction method for free-form modular robot

Номер: CN116300423A
Принадлежит:

The invention discloses a free-form modular robot self-reconfiguration method, which comprises the following steps: firstly, constructing a basic element abstract model of a free-form modular robot, and enabling robot modules to be connected with each other from any direction through an active connector and a passive connector; then, a reasonable action space and a reasonable observation space are designed for the modular robot with limited resources based on a hardware prototype, the action space comprises two plane continuous motion motor driving parameters and a connector motion parameter, and the observation space comprises motion information and local connection relations of the robot and a neighbor module; a reconstruction problem of a modular robot in a free form is modeled into a distributed partially observable Markov decision process, and based on a near-end strategy optimization algorithm, a multi-agent reinforcement learning method with efficient and conflict-free reconstruction ...

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