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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 и социальных сетей. Сканирование интернета, новостных сайтов, специализированных контентных площадок на базе мессенджеров. Гибкие настройки фильтров и первоначальных источников.

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Применить Всего найдено 7. Отображено 7.
02-05-2023 дата публикации

Control method of double-chamber pipeline mixer based on support vector regression-differential optimization algorithm

Номер: CN116047914A
Автор: ZHOU PEIJIAN, WANG HAO, ZHOU HENGZHI, XIANG CHUN, QIAN HENG, ZHANG HUIMING
Принадлежит:

The invention discloses a control method of a double-chamber pipeline mixer based on a support vector regression-differential optimization algorithm, and the method aims at an existing double-chamber pipeline mixer and combines the support vector regression and differential optimization algorithm. The corresponding relation between the flow and the main pipeline inlet guide plate inclination angle alpha, the outlet pipe guide plate inclination angle beta, the branch pipeline guide plate inclination angle theta and the impeller rotating speed n is obtained, and on the basis, when the flow deviates, the structure of the adjusting device is adjusted in time, so that the mixer is always kept at the highest efficiency point.

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Номер записи: 1
15-06-2016 дата публикации

Movable coefficient of frictional resistance testing arrangement

Номер: CN0205317642U
Автор: MOU JIEGANG, FAN TIANXING, GU YUNQING, WU DENGHAO, ZHOU PEIJIAN, ZHENG SHUIHUA, CHEN ZHENFU, WU ZHENXING, TANG JIAXIN, LU MINGYU
Принадлежит:

... 一种可移动式摩擦阻力系数测试装置，包括动力传输装置、试验样件固定装置、施压装置和辅助装置，动力传输装置安装在所述的辅助装置上，动力传输装置的动力输出端连接试验样件固定装置，施力装置包括用于提供垂直按压力的竖直施力单元和用于提供水平按压力的水平施力单元，水平施力单元设置在试验样件固定装置远离动力传输装置的一侧，水平施力单元与底座滑动连接，竖直施力单元与水平施力单元固接，竖直施力单元位于试验样件固定装置的正上方。本实用新型的有益效果是：体积小、结构简单、花费低、试验性能强，并且不受周围试验环境限制；加入防倾斜L板，增强了安全性；满足测量不同旋转表面，不同样件仿生非光滑表面摩擦阻力系数的测试装置。 ...

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Номер записи: 2
04-08-2023 дата публикации

High-temperature-resistant concrete and preparation method thereof

Номер: CN116535173A
Автор: LIN XIHUA, GU QINGSHAN, WANG JUN, WU HAIBO, BAN LUJIANG, HE KAI, ZHOU PEIJIAN, SONG LANLAN
Принадлежит:

The invention discloses high-temperature-resistant concrete and a preparation method thereof. The high-temperature-resistant concrete is prepared from the following components in parts by weight: 200 to 300 parts of aluminate cement, 50 to 200 parts of mineral admixture, 800 to 1200 parts of fire-resistant fine aggregate, 800 to 1200 parts of fire-resistant coarse aggregate, 140 to 180 parts of water, 5 to 15 parts of retarding component and 5 to 30 parts of high-temperature-resistant reinforcing component. The high-temperature-resistant reinforcing component is a composition of polyphosphazene micro-nano tubes and a polyphosphazene micro-nano tube dispersion protection liquid in a weight part ratio of 1: 100. The diameter of the polyphosphazene micro-nano tube is 0.5-5 microns, the length-diameter ratio is 10-25, and the wall thickness is 10-100 nanometers. The polyphosphazene micro-nano tube dispersion protection liquid is a mixed solution of 1-ethyl-3-methylimidazole diethyl phosphate ...

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Номер записи: 3
15-06-2016 дата публикации

Efflux surface drag reduction testing arrangement under water based on it is bionical

Номер: CN0205317444U
Автор: GU YUNQING, MOU JIEGANG, SHI ZHENGZAN, FAN TIANXING, WU DENGHAO, ZHENG SHUIHUA, ZHOU PEIJIAN, CHEN ZHENFU, WU ZHENXING, TANG JIAXIN
Принадлежит:

... 基于仿生的水下射流表面减阻测试装置，包括射流部件、动力输入组件、配水组件、移动组件、磁流体密封组件和信号处理组件，动力输入组件的电机通过第一联轴器与射流部件的输入轴相连，射流部件的输出轴通过第二联轴器与信号处理组件的扭矩信号耦合器相连，信号处理组件、射流部件都安装在移动组件上；配水组件的进水管与射流部件的入水口管道连接，配水组件的出水管与射流部件的出水口管道连通；所述的射流部件通过轴向密封组件密封。本实用新型的有益效果是：实现射流表面减阻效果测试以及对非光滑表面结构减阻效果测试，在做射流表面结构减阻效果评估时，试验样件可以加工出不同孔径形状、孔径大小、排布方式、倾斜角度的射流孔结构。 ...

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Номер записи: 4
28-04-2023 дата публикации

Centrifugal pump performance curve prediction method based on GA optimization theoretical formula

Номер: CN116029200A
Автор: ZHOU PEIJIAN, LUO HUICAN, ZHANG MIN, SUN LIPING
Принадлежит:

The invention discloses a centrifugal pump performance curve prediction method based on a GA optimization theoretical formula. The centrifugal pump performance curve prediction method comprises the steps that firstly, a centrifugal pump characteristic curve is analyzed, and the relation between flow and lift, the relation between flow and power and the relation between flow and efficiency are modeled; based on the theoretical formula of modeling and the relation among the flow, lift and efficiency of the centrifugal pump, the relation between the actual lift and the flow, the relation between the actual power and the flow and the relation between the actual efficiency and the flow are obtained; aiming at the limitation of a theoretical formula for modeling, introducing a correction term into an expression of actual power; secondly, performance parameters of a to-be-tested centrifugal pump under the rated working condition are substituted into the corrected expression, the minimum corresponding ...

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Номер записи: 5
15-08-2023 дата публикации

Water turbine forced air supply system and working method

Номер: CN116591889A
Автор: LI LINWEI, WANG YUANBO, MENG PENG, ZHANG HENG, WANG LEI, WANG HONGTENG, ZHOU PEIJIAN, LIU YANG, WEI ZHENGPENG, JIANG ZHENG
Принадлежит:

The invention relates to a water turbine forced air supply system and a working method. The working method comprises the following steps that S1, unit loads, water heads and unit stability indexes are obtained in real time; s2, the obtained data are compared with the threshold value of the water head and the threshold value of the load when the unit is located in the vibration area, and whether the current unit is located in the vibration area or not is judged; s3, comparing the unit stability index data acquired in real time with the unit stability index threshold value when the unit is in a stable state, and judging whether the unit stability index exceeds the standard or not; s4, the unit is supplemented with air, the opening degree of an air valve is continuously increased, and the stability index of the unit is obtained in real time till the stability index of the unit is within the threshold value; and S5, searching the optimal value of the unit stability index when the unit is in ...

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Номер записи: 6
08-09-2017 дата публикации

Pipeline inner wall bionic groove surface machining device and machining method thereof

Номер: CN0107139251A
Автор: GU YUNQING, LIU TAO, MOU JIEGANG, ZHENG SHUIHUA, WU DENGHAO, ZHOU PEIJIAN, WANG MAN, MOU CHENGQI, ZHANG WENQI, DU WEIYUAN, ZHANG FENGYE
Принадлежит:

... 种管道内壁仿生沟槽表面加工装置及其加工方法，所述的装置包括用于提供驱动力的驱动机构、用于支撑在所述管道内壁面的行走机构、用于在加工管道内壁加工仿生沟槽的加工机构以及控制器，驱动机构通过螺栓安装在行走机构上；加工机构通过螺栓与行走机构固接；驱动机构以及加工机构均与控制器相应的控制端电连；所述的方法包括：根据需要加工管道的管径，转动调节前后行走单元，待加工机构移动到管道内壁待加工的位置时，行走单元停止移动并压紧管道内壁，调整加工机构的刀具位置，开始加工管道内壁沟槽。本发明的有益效果是：可抵消三把刀具切削加工时所受到的切向反力，从而避免产生弯曲变形和扭转变形，同时具有精度高，结构简单，操作简便。 ...

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Номер записи: 7