Results 31 to 40 of about 8,424 (268)
Water Supply, 2022 Abstract The operation of a long-distance water diversion system in the transient process is a rather complicated problem requiring the joint operation of multiple devices. In this study, the joint operation of multiple hydraulic devices in the pumps shutdown process is expressed as a multi-objective optimization problem, and the ...
Xiaolian Liu +4 more
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Perspective Construction of Hydraulic Impact Device [PDF]
, 2015 Article describes a design and the principle of operation of the hydraulic impact device, with automatic control for a new operating mode, depending on loading on the working tool.
Lazutkin, S.L., Lazutkina, N.A.
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OVERVIEW OF SELECTED HYDRAULIC DEVICES SUPPORTING ROAD RESCUE OPERATIONS
Journal of Science of the Gen. Tadeusz Kosciuszko Military Academy of Land Forces, 2017 The intense human activity determines the continuous development of systems and means of transport, which contributes to the intensification of existing road traffic risks and the emergence of new ones. Reduction in the number of fatalities of road accidents is dependent on investment in transport infrastructure, the development of safety sys-tems for ...
Jacek CABAN +2 more
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Learning the basics of a battery pack control system [PDF]
E3S Web of Conferences, 2020 The article discusses the control system of a hydraulic power source of constant pressure, which is a pump-storage power source, equipped with the original design of the automatic unloading of the hydraulic pump, which provides relay switching of its ...
Kobzev Kirill +2 more
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IOP Conference Series: Earth and Environmental Science, 2021 Abstract The authors describe the physical model of a hydraulic percussion device with frequency adjustment using standard flow rate controller and impact energy adjustment using an original throttle control of flow distribution, which allows dragging the hammering piston before its back run.
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Research on Interdependence between Specific Rock Cutting Energy and Specific Drilling Energy
Applied Sciences, 2023 A method based on extensive laboratory and field measurements was developed to determine the dependence of specific rock cutting energy (SEc) on specific drilling energy (SEd) for machines with different operating and design characteristics and similar ...
Davor Antoljak +3 more
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High - speed power hydraulic actuator of reciprocating motion [PDF]
E3S Web of Conferences, 2023 As an object of research in this paper, we use a hydro-mechanical system of high-speed technological equipment with reciprocating movement of the output link on the example of a cyclic perforating press hammer with a force of 1600 kN and a speed of up to
Golubeva Olesya +2 more
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Study on stabilization of operation time for hydraulic operating circuit breaker [PDF]
, 2017 電力用遮断器の油圧操作装置において，油圧回路内の気泡が操作装置の動作に及ぼす悪影響を解消するために，新しい油圧回路方式である常時高圧安定回路方式を提案し，油圧回路内の流れおよび可動部の定式化と解析および実測を行った．本方式の動作特性と動作安定性，ピストンの制動特性，複数の油圧操作装置の駆動特性について検討し，本方式が有効かつ安定的に機能することを確認した．以上により，油圧操作装置の動作時間安定化技術を開発することができた．We proposed and studied a hydraulic ...
山下, 透 +4 more
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Comparison of Energy Performance of Shaft Tubular Pump Device at Two Guide Vane Inlet Angles [PDF]
, 2022 In order to improve the pump device efficiency of the frequent operating condition of the extra-low head pumping station, the energy performance of the front-positioned shaft tubular pump device at two guide vane inlet angles has been researched.
Wei Shi +6 more
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, 2013 This diploma thesis Hydraulic rake screen deals with the design of the hydraulic screen cleaning device with a stroke of 1800 mm, which will be placed in 1000 mm wide flow chanell of the wastewater treatment facility.
Perejda, Michal
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