Results 151 to 160 of about 1,534,066 (401)

Theoretical background of hydraulic drive control system analysis for testing piston hydraulic cylinders

Vestnik of Don State Technical University, 2019
Introduction. The durability and performance of hydraulic machines is determined through life tests. At that, various braking devices (mechanical, electric, hydraulic, etc.) are used for strength loading of the hydraulic motor, as a result of which a ...
A. Rybak, I. Tsybriy, S. Nosachev, A. Zenin   +3 more
semanticscholar   +1 more source

Mod-2 wind turbine system development. Volume 1: Executive summary [PDF]

The development of the MOD-2 wind turbine through acceptance testing and initial operational evaluation is documented. Pitch control hydraulic system, yaw control system, drive train, electrical power station, control system, operations and maintenance ...

core   +1 more source

ON THE DAMPING OF WATER HYDRAULIC CYLINDER DRIVES

Proceedings of the JFPS International Symposium on Fluid Power, 1999
The main aim when designing a controller for a demanding water hydraulic servo application is to find a good and practical method for increasing system damping. The low natural damping of water hydraulic cylinder drives has to be carefully considered also in open loop control applications.
Tapio Virvalo, Matti Vilenius, Esa Mäkinen   +2 more
openaire   +3 more sources

Multi‐Wavelength Achromatic 3D Meta‐holography with Zoom Function

Advanced Science, EarlyView.
Due to the wavelength mismatch, chromatic aberrations are inevitable in multi‐wavelength meta‐holography. Moreover, since the meta‐hologram is difficult to be refreshed, zoom meta‐holography has not been reported to date. This study proposes a multi‐wavelength achromatic 3D meta‐holography with a zoom function, breaking through both the chromatic ...
Chao Liu, Yi Zheng, Di Wang, Qian Huang, Xiao‐Wei Li, Fan‐Chuan Lin, You‐Ran Zhao, Yi‐Wei Zheng, Xiao‐Ke Lu, Xin‐Ru Li, Xin‐Ru Zheng, Xin Xie, Kun Song, Zhen‐Fei Li, Wei Lu, Din Ping Tsai, Ruo‐Nan Ji, Qiong‐Hua Wang   +17 more
wiley   +1 more source

Electro-Hydraulic Variable-Speed Drive Network Technology—First Experimental Validation

Energies
The improvement of the energy efficiency of hydraulic systems remains an essential challenge for industry, and the demand for more sustainable solutions is increasing.
Lasse Schmidt, Mikkel van Binsbergen-Galán   +1 more
doaj   +1 more source

Oxygen Vacancy Defect Engineering for Transverse Thermoelectric Enhancement: a Novel Extrinsic Pathway beyond Intrinsic Approaches

Advanced Science, EarlyView.
Transverse thermoelectric (TE) technology gains increasing attention as it enables efficient power generation within a single TE element and eliminates junctions. This study enhances transverse thermopower in polycrystalline Sr3YCo4O10‐δ through oxygen vacancy defect engineering, utilizing the anomalous Nernst effect to improve TE efficiency.
Min Young Kim, Dongkyu Lee, June Ho Lee, Donghwa Lee, Gi‐Yeop Kim, Si‐Young Choi, Joseph P. Heremans, Hyungyu Jin   +7 more
wiley   +1 more source

Metal spinning of axially symmetric parts using proportional electro-hydraulic drive with tracking system [PDF]

, 2015
В роботі розглянуті методи та верстатне обладнання для виконання процесу ротаційної витяжки. Запропоновано застосувати для виконання процесу ротаційної витяжки електрогідравлічний привод зі стежною системою, що дає можливість виготовляти деталі на ...
Lozinskyi, D. O., Pylyavets, V. G., Shevchuk, Y. I., Sivak, I. O., Лозинский, Д. А., Лозінський, Д. О., Пилявец, В. Г., Пилявець, В. Г., Сивак, И. О., Сивак, І. О., Шевчук, Е. И., Шевчук, Є. І.   +11 more
core  

From Ancient Techniques to Modern Solutions: In Situ Synthesis of C‐S‐H for Sandstone Conservation

Advanced Science, EarlyView.
Herein, this work presents a paleo‐inspired approach to synthesizing and optimizing C‐S‐H‐based grouting mortars for conserving the sandstone of Beishan Grottoes, Dazu Rock Carvings, China. By achieving an optimal recipe compatible with natural sandstone, this work demonstrates the pivotal role of hydrogen bonding in the adhesion between C‐S‐H mortars ...
Mengjun Jia, Huimin Yan, Qingqing Xu, Celestino Grifa, Gang Zhao, Siwei Jiang, Jinhua Wang, Zhenhua Wei, Han Liu, Xiao Ma   +9 more
wiley   +1 more source

METHOD OF STRENGTHENERS DESIGN OF THE HYDRAULIC BRAKE DRIVE [PDF]

Avtomobilʹnyj Transport (Harʹkov), 2011
The method of theoretical design of hydraulic and vacuum strengtheners of hydraulic brake drive of vehicles is considered.
N. Sklyarov, V. Sklyarov
doaj  

Experimental Study of the Pressure Discharge Process for the Hydraulic Control Rod Drive System Stepped Cylinder [PDF]

, 2002
Jinhua Wang, Hanliang Bo, Wenxiang Zheng
openalex   +1 more source