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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 15. Отображено 15.
26-05-2023 дата публикации

DFIG sequence impedance model identification method and system

Номер: CN116167232A
Принадлежит:

The invention discloses a DFIG sequence impedance model identification method and system. According to the method, firstly, reasonable selection of model input variables is guaranteed through a knowledge-driven method, so that an impedance model with high precision is built, and the requirements of a machine learning model for the size and quality of a data sample are reduced; then an impedance identification model is built through a data driving method, and the impedance identification model is trained by utilizing simulation model data, so that harmonic disturbance does not need to be continuously injected into an actual operation system, the method is suitable for the actual situation of confidentiality of internal information of a DFIG unit in an engineering field, and external interference on actual system operation is also reduced; and finally, an impedance identification model is trained through data, so that the accuracy of model output is ensured.

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09-05-2023 дата публикации

Virtual power plant optimization scheduling method comprehensively considering orderly charging of electric vehicles

Номер: CN116090739A
Принадлежит:

The invention discloses a virtual power plant optimization scheduling method comprehensively considering electric vehicle ordered charging, which comprises the following steps: S1, establishing an objective function and constraint conditions of an electric vehicle ordered charging control scheduling model, constructing an electric vehicle ordered charging model based on a price factor, and determining the load demand of an electric vehicle accessed to a virtual power plant; s2, constructing a virtual power plant dispatching model containing the electric vehicle, which comprehensively considers revenue maximization and new energy consumption, fully considering the consumption capabilities of wind power generation and photovoltaic power generation, and coordinating power and electric energy matching between the electric vehicle and the new energy by coordinating energy storage equipment; s3, providing a dynamic weight chaos-particle swarm algorithm for optimization solution, and further improving ...

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23-06-2023 дата публикации

Missile water outlet load reduction and stability augmentation device based on supercavitation principle

Номер: CN116294838A
Принадлежит:

The invention discloses a missile water outlet load reduction and stability augmentation device based on the supercavitation principle, and belongs to the field of missile high-speed water outlet load reduction and stability augmentation. The device is mainly composed of a top air injection device and a plurality of side air injection devices, and the side air injection devices are sequentially arranged around the side portion of the missile at equal intervals. A large amount of gas is generated through the hydrolysis reaction of the reactant to wrap the head of the missile, so that the influence of uneven loads on the missile before water outgoing is reduced, load reduction and stability augmentation of the missile in the water outgoing process are achieved, and the precision of hitting a target by the missile is improved. The top air injection device and the side air injection device carry out air wrapping on the missile head through reactant hydrolysis reaction, tedious modification ...

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11-07-2023 дата публикации

Telescopic deformation load reduction device for missile entering water at high speed

Номер: CN116412725A
Принадлежит:

The invention discloses a missile high-speed water entry telescopic deformation load reduction device, and belongs to the field of missile water entry buffering load reduction. The device comprises a rubber jacket, a multi-stage telescopic device, a one-way valve, a high-pressure gas cylinder, a gas conveying pipeline, a multi-stage gas cavity, a fixing bolt, a multi-stage limiting device and a base. The multiple stages of telescopic devices form the outline of a sharp arch body. The multi-stage telescopic device is adopted to change the sharpness of the guided missile head, the contact area of the guided missile head and water in unit time is enlarged, the water entry time of the guided missile is prolonged, and then the impact load borne by the guided missile in the water entry process is reduced. High-pressure gas released from the interior of the high-pressure gas cylinder can play a buffering role when the missile enters water, the impact load borne by the missile in the water entering ...

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16-05-2023 дата публикации

Flat offset type head load reduction and stability augmentation device for missile entering water at high speed

Номер: CN116123939A
Принадлежит:

The invention discloses a missile high-speed water entry flat offset type head load reduction and stability augmentation device, and belongs to the field of missile water entry stability augmentation. The upward offset degree of the lower side of the missile head is weakened by adopting the flat offset appearance. The interior of the flat offset shell is mainly composed of a sealing layer, a foam layer, a buffer layer and an attaching layer in a stacked filling mode, the impact load is further reduced through the compressibility of materials, the internal structure is protected, and the load reduction effect is enhanced. The device is in a downward offset shape and is mounted at the head of the missile, the resultant force of fluid force borne by the missile after the missile completely enters water is downward and is opposite to the direction of the fluid force borne by the missile when the head of the missile just hits water, and then the trend that the head of the missile deflects upwards ...

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30-07-2014 дата публикации

Double-pull opening structure of automobile engine hood cover lock

Номер: CN103953235A
Принадлежит:

The invention relates to a double-pull opening structure of an automobile engine hood cover lock, and belongs to the technical field of automobile engine hood cover lock structures. The double-pull opening structure comprises a locking claw and a rotating clamping plate which are mounted in a support frame and used for realizing the functions of unlocking and locking, wherein a bent hook-shaped transition blocking structure is arranged at the top of the locking claw; a blocking structure cooperatively used with the transition blocking structure is arranged at the top of the rotating clamping plate; resetting mechanisms for realizing a reset function are respectively and further mounted on the locking claw and the rotating clamping plate. The double-pull opening structure is reasonable in structural design, multi-platform universality can be realized, and the automobile engine hood cover lock can be convenient to open after operation is performed for two times internally.

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05-05-2023 дата публикации

Inflation load reduction device for missile entering water at high speed

Номер: CN116067240A
Принадлежит:

The invention discloses a missile high-speed water entry inflation load reduction device, and belongs to the field of missile water entry buffering load reduction. The device comprises a metal rib supporting frame, a buffer head cap, an inflation device, a pressure release valve, a gas release pipe, a one-way valve, a missile head, a missile body and a supporting flat plate. The buffering head cap is made of two layers of elastic materials, a metal rib supporting frame is embedded in the upper layer, and the outer shape is a semicircular sharp arch body. The lower layer of the buffer head cap is provided with an inflating hole for inflating the inflating device, a deflating hole for deflating the pressure release valve and a through hole for the deflating pipe to pass through; a through hole for installing a one-way valve is reserved in the upper layer of the buffering head cap. And the metal rib support frame is embedded in the upper layer structure of the buffer head cap. The supporting ...

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23-06-2023 дата публикации

Missile high-speed water entry head turning stability augmentation device

Номер: CN116294840A
Принадлежит:

The invention discloses a missile high-speed water entry head turning stability augmentation device, and belongs to the field of missile water entry stability augmentation devices. The device comprises a guided missile, a bearing cartridge case, a circular hole, a turning bullet, an omnidirectional rotating seat, a connecting rod, a lead screw motor, a motor ball head and a connecting rod ball head. The appearance structure of the bearing cartridge case is a combination of a cylindrical shell and a hemispherical shell, and the bearing cartridge case is fixed to the head of the guided missile and used for supporting the bearing cartridge case to move and fixing the omni-directional rotating base and the motor ball head. The shape of the turning bullet is a front streamline, the rear side of the turning bullet is inwards provided with a spherical concave surface, and the spherical concave surface has the same sphere center and radius as the hemispherical shell of the bearing bullet case.

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06-06-2023 дата публикации

Missile small-angle water entry rotation deformation stability augmentation device

Номер: CN116222318A
Принадлежит:

The invention discloses a missile small-angle water entry rotation deformation stability augmentation device, and belongs to the field of missile water entry stability augmentation. The device comprises a missile head, a missile body, an inner gear, a gear, a supporting rod, a spring, a spring fixing pin, a limiting key and a limiting sliding rail. A limiting key parallel to the bottom face is arranged above the bottom face of the missile head, the missile body is provided with a limiting sliding rail parallel to the top end plane, the limiting sliding rail on the missile body is matched and fixed with the limiting key on the missile head, and the missile head is in running fit with the missile body. When the missile flies in the air, the original symmetrical structure of the missile is maintained, when the missile is about to approach the water surface, the head of the missile is rotated and deformed, the position of the head of the missile is deflected downwards in advance, asymmetric ...

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02-06-2023 дата публикации

Anti-ship missile water-striking rebounding and high-lift device

Номер: CN116202378A
Принадлежит:

The invention discloses an anti-ship missile water-striking rebounding and high-lift device, and belongs to the field of anti-ship missile accurate striking. The device comprises an elastic plate, a torsion spring, a limiting plate, a rotating shaft, a hinged support, a rotating frame, a boss, a tensioning rope, a sensor, an ejector and a sensor. The inner side of the elastic plate is a plane, the outer contour of the elastic plate is the same as that of the missile head, and the elastic plate is rotationally connected in a missile head containing cavity through a rotating shaft. The device is mounted at the head of a missile, so that the missile flies across the sea after striking water in a water area close to a target naval vessel, and the water line position of the naval vessel is accurately struck. After approaching the target naval vessel, the aircraft flies in an ultra-low-altitude sea skimming mode, radar detection blind areas of enemy naval vessels can be avoided, so that an approaching ...

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26-05-2023 дата публикации

Missile water outlet load reduction and stability augmentation device based on cavitation principle

Номер: CN116164596A
Принадлежит:

The invention discloses a missile water outlet load reduction and stability augmentation device based on the cavitation principle, and belongs to the field of missile high-speed water outlet load reduction and stability augmentation. The device is installed at the head of a guided missile and comprises an ultrasonic vibrator, amplitude rods, an outer shell and a cavity. The outer shell covers the head of the guided missile. A clearance used for generating vibration is reserved between the outer shell and the guided missile head. And the ultrasonic vibrator is arranged in the missile warhead and is connected with the outer shell through the amplitude rod. Before the guided missile leaves water, the shell installed on the head of the guided missile achieves high-frequency vibration through the vibrator, then the cavitation effect is generated, a large number of cavitation bubbles are formed, the cavitation bubbles are attached to the cavity of the head of the guided missile, and the cavitation ...

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04-04-2023 дата публикации

Proxy model-based approximate optimization method for water-strike-resistant aircraft

Номер: CN115906292A
Принадлежит:

The invention discloses an approximate optimization method for an anti-water-attack aircraft based on an agent model, and belongs to the field of application of cross-medium aircrafts and aircrafts. The implementation method comprises the steps that a water-attack-resistant aircraft configuration is constructed, the top of the configuration is an aircraft revolution body, the bottom of the configuration is of a two-section sliding face configuration, and the bottom configuration forms a face symmetry configuration with the plane where a keel line is located; by adopting the bottom configuration of the planing surface of the planing boat, the impact overload of the aircraft during high-speed water striking is reduced as much as possible, meanwhile, the horizontal speed loss and the pitch angle at the water outlet moment caused by water striking are reduced, and the configuration parameters of the water-striking-resistant aircraft are adjusted and optimized by combining an approximate optimization ...

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26-05-2023 дата публикации

Tissue culture method of polygonatum sibiricum

Номер: CN116158348A
Принадлежит:

The invention discloses a polygonatum sibiricum tissue method, and belongs to the technical field of plant tissue culture.According to the polygonatum sibiricum tissue method, tender rhizomes with hidden buds of polygonatum sibiricum are used as explants for adventitious bud induction and plant regeneration, polygonatum sibiricum seedlings capable of being directly planted outdoors are rapidly obtained, the propagation cycle of the polygonatum sibiricum seedlings is shortened, and the seedling yield is increased. The method has the advantages that the problem of low seedling rate of polygonatum sibiricum seedlings is solved, seedling management procedures are simplified, excellent characters can be well kept, the obtained seedlings are stable in quality as compared with wild seedlings, adventitious bud induction lasts for 60-70 days, subculture multiplication lasts for 30-35 days, rooting culture lasts for 20-30 days, seedling hardening lasts for 7-10 days, and polygonatum sibiricum seedling ...

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09-05-2023 дата публикации

Transient voltage stability monitoring bus analysis method

Номер: CN116093952A
Принадлежит:

The invention discloses a transient voltage stability monitoring bus analysis method. The method comprises the following steps: acquiring voltage partition information of each automatic voltage control partition and active power of each node; according to the voltage partition information of each automatic voltage control partition, the active power of each node and a preset fault, determining a weakness coefficient of each automatic voltage control partition; screening out a to-be-monitored partition from the automatic voltage control partitions according to the weakness coefficient; calculating the electrical distance between the dynamic reactive power reserve of each node in the to-be-monitored partition and the fault point of the preset fault; according to the electrical distance between the dynamic reactive power reserve and the fault point and the active power of each node in the to-be-monitored partition, clustering the nodes of the corresponding to-be-monitored partition to obtain ...

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12-05-2023 дата публикации

Missile high-speed side water striking flexible load reduction device

Номер: CN116105553A
Принадлежит:

The invention discloses a missile high-speed side water-striking flexible load reduction device, and belongs to the field of missile water-striking load reduction devices. The device comprises a guided missile, a flexible load reduction device and a refitting surface. The flexible load reduction device comprises an inner side rubber layer, an inflation layer, a foam layer and an outer side rubber layer. The flexible load reduction device is formed by stacking a plurality of layers of materials, the cross section of the flexible load reduction device is a V-shaped cross section which is concave upwards and convex downwards through stacking combination of the four layers of materials, the guided missile is in a streamline shape in the direction of a missile body after being modified and additionally provided with the flexible load reduction device, and the contact area between the guided missile and seawater is gradually increased when the side face of the guided missile hits water at a small ...

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