Results 31 to 40 of about 547,522 (314)

System Identification of a Servo-Valve Controlled Hydraulic Cylinder Operating Under Variable Load

open access: yesMathematics
This work presents an in-depth study on the system identification of a servo-valve controlled hydraulic cylinder operating under variable load. This research addresses the growing demand for improved control systems (enhancing time response, settling ...
Daniel Catalin Stroita   +2 more
doaj   +1 more source

Precision Interaction Force Control of an Underactuated Hydraulic Stance Leg Exoskeleton Considering the Constraint from the Wearer

open access: yesMachines, 2021
Hydraulic lower limb exoskeletons are wearable robotic systems, which can help people carry heavy loads. Recently, underactuated exoskeletons with some passive joints have been developed in large numbers for the purpose of decreasing the weight and ...
Shan Chen   +6 more
doaj   +1 more source

Tilt table for ergometers and other biomedical devices [PDF]

open access: yes, 1971
Table adjusts to any position between horizontal and vertical. Apparatus includes - floor plate, plate hinged to floor plate, for carrying ergometer, hydraulic cylinder and piston on plate sides, linking them, hydraulic system, positive stops, padded ...
Gause, R. L., Spier, R. A.
core   +1 more source

Interaction between Molten Al‐Killed Mn–B Steel and Carbon‐Bonded MgO Refractories Based on Recyclates

open access: yesAdvanced Engineering Materials, EarlyView.
High‐temperature interactions between low‐sulfur Al‐killed Mn–B steel and MgO–C refractories (0 and 50 wt% recyclates) are studied via finger immersion tests (1600 °C). Surface‐active elements influence infiltration. MgO/CaS layer forms, along with spinel and calcium silicate.
Matheus Roberto Bellé   +5 more
wiley   +1 more source

Influence of Sample Preparation and Processing Procedures on the Thermal Diffusivity of MgO‐C Refractories

open access: yesAdvanced Engineering Materials, EarlyView.
The thermal diffusivity of MgO‐C refractories is highly sensitive to sample preparation and processing procedures. In this article, the effects of coking sequence, machining conditions, structural inhomogeneity, and graphite coating application on measurements using laser flash apparatus are systematically investigated.
Luyao Pan   +4 more
wiley   +1 more source

Pressure in the hydraulic system of three point hitch of tractor equiped with electrical and mechanical control

open access: yesResearch in Agricultural Engineering, 2003
The goal of the measurement of the tractor ZTS 164 45 equipped with digital electrohydraulical control EHR-D BOSCH during ploughing with ploughs KUHN (4 bottoms) and 5 PHX 35 (5 bottoms) was to obtain time dependent states of pressure in the hydraulic ...
I. Petranský   +5 more
doaj   +1 more source

Hydraulic servo system increases accuracy in fatigue testing [PDF]

open access: yes, 1967
Hydraulic servo system increases accuracy in applying fatigue loading to a specimen under test. An error sensing electronic control loop, coupled to the hydraulic proportional closed loop cyclic force generator, provides an accurately controlled peak ...
Dixon, G. V., Kibler, K. S.
core   +1 more source

Microstructural Evolution and Vacancy Defect Formation in Mn–Mo–Ni RPV Steel Under Low Cycle Fatigue: Insights From EBSD and PALS

open access: yesAdvanced Engineering Materials, EarlyView.
Low‐cycle fatigue damage in Mn–Mo–Ni reactor pressure vessel steel is examined using a combined electron backscatter diffraction and positron annihilation lifetime spectroscopy approach. The study correlates texture evolution, dislocation substructure development, and vacancy‐type defect formation across uniform, necked, and fracture regions, providing
Apu Sarkar   +2 more
wiley   +1 more source

Implementation of a Real-Time Pressure and Tilt Angle Monitoring System for Mast Hoisting in NOV Rapid Rig 13 Equipment

open access: yesRevista Colombiana de Tecnologías de Avanzada
This paper presents the implementation of a real-time monitoring system for mast hoisting operations in NOV Rapid Rig 13 equipment, using a distributed architecture with local data acquisition, processing, and visualization layers.
Elkin Adoniz Mora Castañeda   +2 more
doaj   +1 more source

Maximum Power Control Algorithm for Power Take-Off System Based on Hydraulic System for Floating Wave Energy Converters

open access: yesJournal of Marine Science and Engineering, 2022
In this study, a hydraulic system generator power converter was modeled to verify the performance of a hydraulic-based power take-off (PTO) system. Moreover, the characteristics and output performance of the PTO system were analyzed with various load ...
Chan Roh
doaj   +1 more source

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