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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 7. Отображено 7.
26-01-2005 дата публикации

Portable pressure driven vehicle cleaning device

Номер: CN0001569532A
Автор: LI JIBIN, FENG JIHANG, TANG QI, JIBIN LI, JIHANG FENG, QI TANG
Принадлежит:

The invention is a portable pressure driving car cleaner. The character lies in: it has a shell with sealed inner cavity, one end of the shell is arranged with a bearing cavity, the shell is arranged with an input nozzle connected to the inner cavity, another end of the shell is arranged with a output aperture connected to the inner cavity; a spindle is arranged on the shell through a bearing assembled in the bearing cavity, one end of the spindle is guided into the inner cavity and is assembled with a impeller. The spindle exposed out of the shell is arranged with a plate brush. It has two modes with water pressure as power and with gas pressure as power. The pressure energy or gas pressure energy entering the inner cavity can be converted into mechanical energy, drives the brush to rotate, and realizes the aim to clean the car through the contact between the brush and the car surface.

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Номер записи: 1
30-06-2023 дата публикации

Determination method for deloading trajectory of solid binding rocket

Номер: CN116362037A
Автор: FENG JIHANG, HONG GANG, CHEN KAI, HUANG SHUAI, ZHANG ZHEWEI
Принадлежит:

The invention discloses a method for determining a deloading trajectory of a solid binding rocket. The method comprises the following steps: S1, determining a standard trajectory of a solid booster under a windless condition; s2, obtaining a theoretical drop point of the solid booster according to the standard trajectory; s3, determining a deloading trajectory of the solid booster under the condition of wind under the standard working time; s4, determining a deloading trajectory of the solid booster under the condition of working time deviation in the presence of wind; s5, obtaining a final deloading trajectory according to the deloading trajectory obtained in the step S3 and the deloading trajectory obtained in the step S4; and S6, correcting the final deloading trajectory to enable the final deloading trajectory to meet the requirement of the theoretical drop point obtained in the step S2. Flight loads caused by wind in the flying process of the solid binding rocket can be remarkably ...

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Номер записи: 2
04-04-2023 дата публикации

Carrier rocket and surface-level combined orbit design method

Номер: CN115906277A
Автор: WANG YING, ZHU LIANGCONG, TANG MINGLIANG, FENG JIHANG, HAO CHUANCHUAN, LIU HANBING
Принадлежит:

The carrier rocket and surface level combined orbit design method comprises the steps that 1, a carrier rocket serves as a basic level, an upper level serves as a final level, and a three-degree-of-freedom combined trajectory optimization model is established; 2, according to target task characteristics, joint design track segments are determined; the joint design track subsection comprises upper-stage working times and transfer track types; 3, determining a first working starting point of an upper stage, and completing joint optimization; after the transfer orbit is determined, combined orbit optimization is carried out on the primary working sections of the basic stage and the upper stage of the carrier rocket, and the primary working starting point of the upper stage is determined. According to the design method for the combined orbit of the carrier rocket and the surface level, combined optimization is carried out on the basic level orbit and the upper level orbit of the carrier rocket ...

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Номер записи: 3
28-07-2023 дата публикации

Microwave rectification planar array based on field forming visualization

Номер: CN116505290A
Автор: ZHAI HAO, ZHAO DESHUANG, FENG JIHANG
Принадлежит:

The invention discloses a field forming visualization-based microwave rectification planar array, and the working mode of the array is as follows: a microstrip antenna unit in a rectification planar antenna array receives electromagnetic waves in a forming field and inputs the electromagnetic waves to a rectification circuit port through a feed port; and an L-shaped impedance matching structure formed by a series inductor L1 and a shunt capacitor C1 matches the input impedance of the rectification circuit to 50 ohm and matches the output impedance of the antenna array unit, so that the microwave energy can flow into the rectification circuit. And a series rectification topological structure formed by the rectifier diode HSMS-2862 is used for converting the radio frequency energy into direct current energy to be used by a load and an LED. And finally, a capacitor C2 is connected in parallel to filter output energy, direct current is conducted to a load R1 and an LED, and meanwhile, radio ...

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Номер записи: 4
07-07-2023 дата публикации

Universal core-level assembly return trajectory design method

Номер: CN116401845A
Автор: FENG JIHANG, CHEN KAI, YANG NAN, ZHANG ZHEWEI, WANG YING
Принадлежит:

The invention discloses a general core-level assembly return trajectory design method. The method comprises the steps that S1, satellite orbit target parameters are acquired; s2, optimizing a trajectory under the condition that the core-level assembly does not return to meet satellite orbit target parameters, and enabling the carrying capacity of an active section to be maximum; s3, adjusting the throttling coefficient of the core-level engine, and optimizing the active section again according to the satellite orbit target parameters; based on the active section optimized again, the core-level propellant remaining amount at the end moment of the active section is obtained according to the core-level engine throttling coefficient and the core-level combination shutdown time; s4, determining a return section in the return trajectory, and satisfying each constraint of the return section; s5, according to the core-level propellant remaining amount at the end moment of the active section, the ...

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Номер записи: 5
11-07-2023 дата публикации

F-type power amplifier circuit based on n-type matching stabilizing circuit

Номер: CN116418305A
Автор: SUN HAO, FENG JIHANG, ZHAO DESHUANG, XIONG WEIXU
Принадлежит:

The invention discloses an F-type power amplifier circuit based on an n-type matching stabilizing circuit, and belongs to the technical field of wireless communication power amplifiers. The circuit comprises a transistor, an n-shaped matching stabilizing circuit, a grid bias circuit, a drain harmonic control circuit, a drain bias circuit and a drain matching circuit, wherein the n-shaped matching stabilizing circuit is realized by connecting an L-shaped microstrip line branch with a resistor R in series and connecting a capacitor C in parallel. According to the n-type matching stabilizing circuit, the input matching circuit and the stabilizing circuit are integrally designed, so that the n-type matching stabilizing circuit can match an input port and can effectively solve the problem of mutual influence of self-oscillation and frequency deviation of an existing F-type power amplifier by virtue of the self resistance stabilizing circuit; in addition, the drain harmonic control circuit effectively ...

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Номер записи: 6
01-08-2023 дата публикации

High-efficiency power amplifier circuit based on microwave current reduction technology

Номер: CN116526990A
Автор: SUN HAO, CHEN JUNSONG, FENG JIHANG, XIONG WEIXU, JIANG JIYUAN, ZHAO DESHUANG
Принадлежит:

The invention discloses a high-efficiency power amplifier circuit based on a microwave current reduction technology, and belongs to the technical field of wireless communication power amplifiers. Comprising a transistor, a grid stabilizing circuit, a grid biasing circuit, a drain T-type high-impedance harmonic control circuit, an input matching circuit and an output matching circuit, the grid of the transistor is connected with a grid biasing circuit and a grid stabilizing circuit which are connected in parallel; the other end of the grid stabilizing circuit is connected with an input matching circuit; the drain electrode of the transistor is connected with the output matching circuit through the drain electrode T-type high-impedance harmonic control circuit; the drain electrode T-type high-impedance harmonic control circuit comprises four microstrip lines T1-T4 which are sequentially connected in series, and a drain electrode biasing circuit is arranged between the microstrip lines T2 ...

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Номер записи: 7