Results 91 to 100 of about 1,725,925 (401)
Comparative study of rudder transmission vibration characteristics of electric and hydraulic drive
Zhongguo Jianchuan Yanjiu, 2017 [Objectives] A comparative study of the rudder transmission vibration characteristics of electric drive and traditional hydraulic drive is carried out on the basis of a telescopic rudder transmission test bed.[Method] First,a study is made of the ...
XIANG Kebing, LI Weijia, LAN Qiuhua
doaj +1 more source
Hydraulic drive boom lifting mechanism
IOP Conference Series: Materials Science and Engineering, 2019 The paper presents the calculation of the pressure of the hydraulic cylinder of the boom at the inlet to the throttle, which regulates the speed of lowering the boom with a load, which provides a non-cavitation operation mode of the hydraulic drive. The pressure calculation takes into account the change in the angular acceleration of the boom with a ...
Zubrilov, G. +4 more
openaire +2 more sources
Meta‐Rod Mechanical Metamaterials With Programmable Reconfiguration
Advanced Functional Materials, EarlyView.Existing mechanical metamaterials achieve programmable large deformations in planar square or cubic configurations, restricted by required complex boundary conditions. This research proposes a 1D metamaterial, Meta‐rod, with linear, bending, twisting, area, and volume deformation modes.
Atharva Pande, Lyes Kadem, Hang Xu
wiley +1 more source
Modeling of Hydraulic Load of Electric Drive in Electrical Complex of Pumping Station
Energy Engineering and Control Systems, 2018 The paper analyses the contemporary state of the electric drive hydraulic load modelling in the pumping stations’ electrotechnical complex applications. It was found that in the vast majority of cases, mathematical models do not allow taking into account
Vladyslav Lysiak +2 more
doaj +1 more source
Стендові випробування механізму розстановки свічок [PDF]
, 2006 Описана вдосконалена конструкція стенду для регулювання параметрів гідравлічної системи механізму розстановки свічок на гідроприводі для бурових установок, які не обладнані автоматом спуску і підйому.
Малько, Б. Д., Свід, Л. П.
core
Trade-off analysis and design of a Hydraulic Energy Scavenger [PDF]
, 2012 In the last years there has been a growing interest in intelligent, autonomous devices for household applications. In the near future this technology will be part of our society; sensing and actuating will be integrated in the environment of our houses ...
Boero, Diego +4 more
core +2 more sources
Sustainable Catalyst‐Free PLG Networks: Recyclability, Biodegradability, and Functional Performance
Advanced Functional Materials, EarlyView.A catalyst‐additive free covalent adaptable network is developed from star‐shaped poly(lactide‐co‐glycolide) cross‐linked with pyromellitic dianhydride, enabling internal carboxylic acid‐driven transesterification. The resulting biodegradable network exhibits mechanical robustness (Young's modulus ≈1.6 GPa), complete recyclability, rapid biodegradation
Lars Schwarzer +2 more
wiley +1 more source
Hydraulic Stepper Drive - Conceptual Study, Design and Experiments
, 2016 Positionsgeregelte hydraulische Antriebe werden eingesetzt, wenn eine hohe Kraftdichte, schnelles Ansprechverhalten und ein kompaktes Design gefordert sind. Die dynamischen Anforderungen und hohen Genauigkeiten können zurzeit nur über Servo-Ventile in Kombination mit einer Regelung erreicht werden. Die Nachteile dieser Technologie sind die hohen Kosten
openaire +2 more sources
An impedance approach to reduce the contact-instability whilst drilling with active heave compensation [PDF]
, 2012 The bit-bounce, or contact-instability, phenomenon which occurs in the drill string suspended from a floating vessel with an active drill string compensator to maintain a steady weight on the drill bit is investigated.
Dunnigan, Mathew Walter, Hatleskog, Jan
core +1 more source
Novel Functional Materials via 3D Printing by Vat Photopolymerization
Advanced Functional Materials, EarlyView.This Perspective systematically analyzes strategies for incorporating functionalities into 3D‐printed materials via Vat Photopolymerization (VP). It explores the spectrum of achievable functionalities in recently reported novel materials—such as conductive, energy‐storing, biodegradable, stimuli‐responsive, self‐healing, shape‐memory, biomaterials, and
Sergey S. Nechausov +3 more
wiley +1 more source