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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 10. Отображено 10.
06-06-2023 дата публикации

Enhanced strain connecting plate design method based on morphology optimization

Номер: CN116227147A
Принадлежит:

The invention discloses a shape optimization-based reinforced strain connecting plate design method, which comprises the following steps of S1, determining an initial model of topological optimization, and setting a fixed area and a design area; s2, a design variable, a target function and a constraint condition of topological optimization are determined, the design variable is a shape change quantity of each sub-region in a design region, the target function is a load scale factor corresponding to a first-order buckling mode of the maximized tension yoke plate, and the constraint condition is that the distribution rate of beads is smaller than a limit value; s3, carrying out topological optimization on the initial model of the tension yoke plate; s4, reasonable reinforcement optimization design of the tension yoke plate is obtained in combination with the machining cost and difficulty; and S5, performing nonlinear buckling analysis on the reasonable reinforcement optimization design of ...

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27-06-2023 дата публикации

Power transmission line galloping suppression device and method based on emergency inhaul cable

Номер: CN116345378A
Принадлежит:

The invention belongs to the technical field of power transmission line galloping prevention, and particularly relates to a power transmission line galloping suppression device and method based on emergency inhaul cables, and the device is arranged on a power transmission line wire and comprises a plurality of emergency inhaul cables arranged on the power transmission line wire. Each emergency inhaul cable downwards extends to the ground in the direction away from the wire to serve as a first anchoring point, each emergency inhaul cable horizontally extends to a second anchoring point from the first anchoring point in the direction away from the wire, a fixed pulley is arranged at the first anchoring point and connected with the first anchoring point through an anti-impact device, and the anti-impact device is connected with the second anchoring point. A one-way tightening device is fixedly arranged at the second anchoring point, and the emergency inhaul cable penetrates through the fixed ...

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18-08-2023 дата публикации

Digital tension and galloping synchronous monitoring device for power transmission line and use method

Номер: CN116608902A
Принадлежит:

The invention belongs to the technical field of power transmission line tension galloping online measurement, and particularly relates to a digital tension galloping synchronous monitoring device for a power transmission line and a use method. The hardware fitting comprises a hardware fitting sensor and a sensor demodulation processing structure. The fitting sensor is hung on a power transmission line, and three strain sensors and at least one temperature sensor are arranged in the fitting sensor; the sensor demodulation processing structure comprises a signal source, a signal monitoring device and a processing display unit, the signal source is connected with the strain sensor and the temperature sensor through signal transmission lines, and the strain sensor and the temperature sensor are sequentially connected to the signal monitoring device and the processing display unit through the signal transmission lines. The device can realize the measurement of three-dimensional force, realizes ...

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07-04-2023 дата публикации

Composite insulator point temperature rise defect diagnosis method and equipment based on temperature rise curve

Номер: CN115932500A
Принадлежит:

According to the method and device for judging the temperature rise defect type of the composite insulator point according to the curve of the surface temperature of the composite insulator changing along with time, only one air supply device needs to be additionally arranged on the basis of an original infrared temperature measurement technology, disturbance is given to a steady-state temperature field where the composite insulator is located, the disturbance is removed after a period of time, and the temperature rise defect type of the composite insulator point is judged. And recording data of temperature change of the composite insulator along with time after disturbance evacuation and carrying out certain analysis so as to distinguish whether the temperature rise phenomenon of the composite insulator point is caused by heating of a core rod-sheath interface or heating of a sheath surface layer.

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11-07-2023 дата публикации

Aerodynamic resistance enhancement-based power transmission line galloping suppression method

Номер: CN116417953A
Принадлежит:

The invention discloses a power transmission line galloping suppression method based on aerodynamic resistance enhancement, and the method comprises the following steps: S1, determining the maximum icing non-uniform cross section of a preset power transmission line without galloping based on the climate of an area where the power transmission line is located; s2, based on the principle that the icing weight of the power transmission line and the icing weight of the preset power transmission line without galloping are constant values, according to the maximum icing non-uniform cross section of the preset power transmission line without galloping in the step S1, determining the maximum non-uniform icing thickness when the preset power transmission line does not gallop; s3, introducing an aerodynamic resistance coefficient additional item CD; s4, performing equivalent implementation processing on an aerodynamic resistance coefficient additional item CD in the power transmission line; and S5 ...

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25-08-2023 дата публикации

Overhead transmission line hardware fitting health state linkage monitoring system

Номер: CN116642534A
Принадлежит:

The invention discloses an overhead transmission line hardware fitting health state linkage monitoring system, and relates to the technical field of transmission line safety monitoring. Through linkage cooperative control of the sag acquisition unit, the windage yaw acquisition unit, the fitting temperature acquisition unit, the cradle head binocular infrared monitoring and shooting device and the power transmission edge intelligent terminal, data resources can be effectively utilized, and the feasibility and reliability of engineering practice are improved while the efficiency is improved. Moreover, the threshold signal is adopted as the video image monitoring and shooting starting signal of the cradle head binocular infrared monitoring and shooting device, so that the conventional operation time of the video image monitoring and shooting device can be effectively shortened, the monitoring cost and the use power consumption of the video image monitoring and shooting device are reduced, ...

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18-04-2023 дата публикации

Tension yoke plate stability checking method considering initial geometric defects

Номер: CN115982886A
Принадлежит:

The invention discloses a tension yoke plate stability checking method considering initial geometric defects, which comprises the following steps of: performing characteristic value buckling analysis on a tension yoke plate to obtain a buckling mode of the tension yoke plate; introducing a buckling mode of the tension yoke plate as an initial geometric defect of the tension yoke plate, and performing nonlinear buckling analysis on the tension yoke plate to obtain a nonlinear buckling load of the tension yoke plate; the method comprises the following steps: selecting a plurality of typical tension yoke plate samples to carry out a buckling tensile experiment to obtain a real buckling load of the tension yoke plate, and carrying out comparative analysis on the real buckling load and a nonlinear buckling load of the tension yoke plate to obtain an initial defect degree range of the tension yoke plate; and determining the minimum buckling load of the tension yoke plate according to the initial ...

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23-06-2023 дата публикации

Node motion parameter measurement and calculation method, computer readable medium, electronic equipment, centripetal force measurement and calculation method and spacer selection method

Номер: CN116306107A
Принадлежит:

The invention relates to a node motion parameter measuring and calculating method, a computer readable medium, electronic equipment, a centripetal force measuring and calculating method and a spacer type selection method. The established node motion model of the sub-conductor considers the influence of the mass of the conductor system, the damping of the conductor system, the rigidity of the conductor system and the external load of the sub-conductor on the motion of the sub-conductor, and the external load of the sub-conductor comprises the self-weight load of the conductor system and the electromagnetic attraction load of the sub-conductor. When the sub-conductor motion model measures and calculates the node position, the influence of collision factors on the sub-conductor motion in the sub-conductor motion process is considered, so that the measured and calculated node motion parameters are closer to the actual node motion parameters. Therefore, when the centripetal force is measured ...

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02-05-2023 дата публикации

Self-maintenance system and method of communication module

Номер: CN116047971A
Принадлежит:

The invention discloses a self-maintenance system and method for a communication module, and relates to the technical field of communication, and the system is characterized in that a first communication module is connected with a power module through a first power switch device; the second communication module is connected with the power module through the second power switch device; the power module is connected with the processor module; the analog switch device is respectively connected with the first communication module, the second communication module and the processor module, and is used for connecting the first communication module or the second communication module according to a communication instruction sent by the processor module; the processor module is respectively connected with the first power switch device and the second power switch device, is used for sending a communication instruction and a power control instruction to initialize the communication module according ...

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23-06-2023 дата публикации

Construction method of three-dimensional simulation texture model

Номер: CN116310044A
Принадлежит:

The invention relates to a method for constructing a three-dimensional simulation texture model, which comprises the following steps of: S1, acquiring three-dimensional surface data of a real object, and generating a three-dimensional entity model; s2, performing multi-angle shooting to obtain an initial texture image of the real object; s3, projecting the three-dimensional surface model at the same angle as that in the step S2 to obtain a projection image; registering the projection image and the initial texture image to obtain a target texture image; s4, establishing a visual angle corresponding relation between the target texture image and the three-dimensional surface model, and segmenting the target texture image to obtain texture fragments matched with each surface patch of the three-dimensional solid model; and S5, attaching a matched texture fragment to each surface patch of the three-dimensional entity model, and eliminating splicing defects to obtain a three-dimensional simulated ...

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