Results 21 to 30 of about 48,334 (266)
Energies, 2017 In order to solve the problem of reciprocating motion in no beam supported mining machines, putting energy saving as a starting point in Coal Bed Methane (CBM) exploitation, this paper designs a completely non-circular gear automatic reversing vertical ...
Guiyun Xu +3 more
doaj +1 more source
Journal of Marine Science and Engineering, 2023 The composition characteristics and working principle of the hydraulic rotary system of the azimuth thruster were analyzed. The mathematical model of the rotary dynamic system of the pump-controlled hydraulic motor driving the gear reduction mechanism ...
Ruiqi Liu +3 more
doaj +1 more source
Hardware-in-the-loop simulation of a gas turbine engine fuel control unit using model-based predictor [PDF]
مهندسی مکانیک شریف, 2022 Hardware-In-the-Loop (HIL) is a kind of simulation in which an actual component of a closed-loop control system is tested within computer-based real-time simulation of the rest of the system.
M. Nasiri, M. Montazeri, M. Rezazadeh
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A Study on the Fuel Economy Potential of Parallel and Power Split Type Hybrid Electric Vehicles
Energies, 2018 What is the best number of gear steps for parallel type hybrid electric vehicles (HEVs) and what are the pros and cons of the power split type HEV compared to the parallel type have been interesting issues in the development of HEVs.
Hyunhwa Kim +5 more
doaj +1 more source
Actuators, 2020 This paper investigates energy efficiency and dynamic behavior through simulation and experiments of a compact electro-hydrostatic actuator system (EHA) consisting of an electric motor, external gear pump/motors, hydraulic accumulator, and differential ...
Thales Agostini +3 more
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Gear Pump Versus Variable Axial Piston Pump in Electro-Hydrostatic Servoactuators
ActuatorsThis paper presents a comparison of some different configurations of electro-hydrostatic actuators (EHA). The gear pump EHA has a simpler mechanical configuration, but the electronic power command circuits and the electric motor are in high demand due to
Alexandru Dumitrache +4 more
doaj +1 more source
Investigation of an Intellectual Tracking System Using the Intelligent Controller for Infusion Pump in Medical Applications [PDF]
Brazilian Archives of Biology and TechnologyThe paper proposes design and investigates controllers for infusion pump systems to actuate air control flow with improved performance. The actuator is realized with a permanent magnet brushless DC motor controlled by a self-tune PID controller replaced ...
Arulmozhiyal Ramaswamy, Murali Muniraj
doaj +1 more source
Applied SciencesThis study proposes an asymmetric pitch control technique for electric oil pumps with symmetric gear-type pumps in order to reduce noise and vibration. For vane pump noise reduction, mechanical asymmetric pitch arrangements of each vane are widely used ...
Chinchul Choi
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Water Pump Development for the EVA PLSS [PDF]
, 2009 This paper describes the effort by the Texas Engineering Experiment Station (TEES) and Honeywell for NASA to design, fabricate, and test a preflight prototype pump for use in the Extravehicular activity (EVA) portable life support subsystem (PLSS). Major
Goldman, Jeff +4 more
core +1 more source
Fully 3D‐Printed Wave‐Wound Electromagnetic Motors
Advanced Materials Technologies, EarlyView.This work presents the first fully 3D‐printed wave‐wound electromagnetic motors, which are created using conductive nanoparticle inks, carbon‐filled nylon polymers, and surface mount components. These motors can achieve a stall torque of 7.62N·mmA−1$7.62 \nobreakspace N{\cdot }mm A^{-1}$ and efficiency of 28.2 %, which approaches the performance of ...
Joseph Schwalbe +4 more
wiley +1 more source