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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.
25-07-2023 дата публикации

Method for constructing numerical calculation model of rock with lamellar laminated structure

Номер: CN116486954A
Автор: BAN YUXIN, XIE QIANG, DUAN JUN, SUN WEICHEN, FU XIANG, CHEN LIHONG, CHEN YUCHENG
Принадлежит:

The invention relates to the technical field of mechanical properties and crack evolution rules of materials, in particular to a method for constructing a numerical calculation model of a lamellar laminated structure rock, which comprises the following steps of: observing a lamellar laminated structure of a material to obtain physical and mechanical parameters of a laminated material; according to the layered rock material lamellar sheet stacking structure features and mineral component features, constructing a lamellar sheet stacking structure rock numerical calculation model considering mineral components by means of a discrete element calculation method; according to the physical and mechanical parameters of the layered material, carrying out parameter calibration on the numerical calculation model of the lamellar sheet stack structure to obtain a calibration model; and based on the process of applying speed simulation loading to the external wall unit by the calibration model, calculating ...

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Номер записи: 1
12-05-2023 дата публикации

Inspection well self-adaptive to road frost heaving and ablation rising and landing and construction method thereof

Номер: CN116104177A
Автор: ZHU CHUNFENG, MENG XIANGRUI, MENG FANLIN, BAN YUXIN, WANG YUGUANG
Принадлежит:

The invention discloses a self-adaptive road frost heaving and ablation lifting inspection well and a construction method of the self-adaptive road frost heaving and ablation lifting inspection well, and belongs to the technical field of civil engineering municipal road engineering supporting facilities. The problem that the pavement around the inspection well cover is easy to settle due to overlarge local pressure stress due to the lack of foundation bearing capacity in the area range of the inspection hole is solved; meanwhile, the inspection well lifting section can be raised along with the road surface after frost heaving in winter and settled along with the road surface after frost heaving ablation in spring, the inspection well cover and the surrounding road surface are in a flat state all the time, and normal and safe driving of road vehicles can be guaranteed all the time. The problem that the top surface of the inspection well sinks and protrudes relative to the road surface due ...

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Номер записи: 2
28-04-2023 дата публикации

Fluid-solid coupling grid modeling and fluid-solid bidirectional coupling calculation method

Номер: CN116029182A
Автор: CAO ZHILIN, XIE QIANG, SUN WEICHEN, FU XIANG, CHEN YUCHENG, BAN YUXIN, DUAN JUN, GONG YECHAO
Принадлежит:

The invention relates to the technical field of data processing, in particular to a fluid-solid coupling grid modeling and fluid-solid bidirectional coupling calculation method, which comprises the following steps of: establishing a TCP (Transmission Control Protocol) communication module, and realizing communication between Polish software and PFC3D (Performance Control Three Dimensional) software; carrying out smooth modeling by using PFC3D software to obtain a particle flow model, and carrying out rock-soil body particle modeling by using Poret software to obtain a model fluid field grid; the PFC3D software calculates the permeability coefficient and the non-Darcy coefficient of each unit based on the particle flow model and the model fluid field grid; carrying out flow field calculation based on the permeability coefficient and the non-Darcy coefficient by the Polish software to obtain a flow field result; the PFC3D software calls the CFD module, fluid-solid coupling calculation is ...

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Номер записи: 3
25-04-2023 дата публикации

Regular lattice spring model simulation method for deformation and fracture of anisotropic material

Номер: CN116013434A
Автор: SUN WEICHEN, XIE QIANG, WU KAI, CAO ZHILIN, FU XIANG, BAN YUXIN, WU ZHIHUI
Принадлежит:

The invention relates to the technical field of numerical simulation, in particular to a regular lattice spring model simulation method for anisotropic material deformation and fracture, which comprises the following steps of: dispersing a continuum into a set consisting of regular lattice particles and bonds, and constructing a simulation model by using the set; calculating and configuring parameters of lattice particles and bonds of the simulation model; circularly solving the simulation model of which the parameter configuration is completed to obtain a deformation and fracture development evolution process; and performing end condition judgment on the deformation and fracture development evolution process to obtain displacement, stress and crack distribution. Each key of the regular lattice spring model is composed of a normal spring, a tangential spring and a normal and tangential coupling spring, and the normal and tangential coupling springs are innovatively used for releasing model ...

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Номер записи: 4
16-05-2023 дата публикации

Inspection well with adjustable lifting top and construction and operation method thereof

Номер: CN116122340A
Автор: ZHU CHUNFENG, MENG XIANGRUI, MENG FANLIN, BAN YUXIN, WANG YUGUANG
Принадлежит:

The invention discloses an inspection well with a lifting-adjustable top and a construction and operation method thereof, and belongs to the technical field of municipal road engineering supporting facilities. The lifting difference between the top surface of the inspection well and the road surface caused by road frost heaving and ablation is eliminated by rotating the adjustable lifting section, so that the inspection well cover is always kept flat with the road surface; the lubricating plates are tightly attached to the peripheries of the lower section and the adjustable lifting section of the inspection well, so that the phenomenon that the adjacent road surface is uneven due to the fact that the upheaval and settlement of the tightly attached road surface are influenced by the frictional resistance of the side wall of the inspection well can be prevented, and the frictional resistance between the adjustable lifting section at the top and the side road surface can be remarkably reduced ...

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Номер записи: 5