Results 11 to 20 of about 290 (181)

Bioinspired Intelligent Soft Robotics: From Multidisciplinary Integration to Next-Generation Intelligence. [PDF]

open access: yesAdv Sci (Weinh)
Soft robotics, featuring intrinsic compliance and biomimetic adaptability, emerges as transformative in next‐generation intelligent systems. This review outlines how advancements in four foundational domains—actuation, materials, manufacturing, and control—drive the evolution of bioinspired intelligent soft robotics, poised to redefine the boundaries ...
Wang X   +7 more
europepmc   +2 more sources

Bioinspired Mechanisms and Actuation of Soft Robotic Crawlers. [PDF]

open access: yesAdv Sci (Weinh)
Researchers have been developing soft materials and robotic crawlers inspired by soft‐bodied animals to mimic effective crawling in complex environments. This review explores the state‐of‐the‐art in soft crawlers, highlighting the interaction between materials, crawling mechanisms, actuation, and applications. The review concludes by providing insights
Pan M   +6 more
europepmc   +2 more sources

Fault Mode Analysis and Convex Optimization-Based Fault-Tolerant Control for New Type Dissimilar Redundant Actuation System of Near Space Vehicle

open access: yesApplied Sciences, 2023
A new type dissimilar redundant actuation system (NT-DRAS), which is composed of an electro-hydrostatic actuator (EHA) and an electro-mechanical actuator (EMA), is applied in high value unmanned aerial vehicles such as the future near space vehicles to ...
Jian Huang   +5 more
doaj   +1 more source

RISE-Based Composite Adaptive Control of Electro-Hydrostatic Actuator with Asymptotic Stability

open access: yesMachines, 2021
The electro-hydrostatic actuator (EHA), the actuator of electric drive and hydraulic transmission, is competitive since it is small in size, light in weight and high in power density.
Yaowen Ge   +3 more
doaj   +1 more source

Active Load-Sensitive Electro-Hydrostatic Actuator for More Electric Aircraft

open access: yesApplied Sciences, 2020
In the flight control system, using an electro-hydrostatic actuator (EHA) instead of the currently used relatively mature electro-hydraulic valve-controlled actuator, there are three prevailing concerns, namely heating, size, and stiffness.
Ligang Huang   +3 more
doaj   +1 more source

Review and Analysis of the Reasons Delaying the Entry into Service of Power-by-Wire Actuators for High-Power Safety-Critical Applications

open access: yesActuators, 2021
This paper deals with safety-critical, high-power actuation in aerospace applications. Using a system-level synthetic view, it identifies, explains and discusses the reasons why electrically supplied, or power-by-wire, solutions have not spread rapidly ...
Jean-Charles Maré
doaj   +1 more source

Harmonic Control for Variable-Frequency Aviation Power System Based on Three-Level NPC Converter

open access: yesIEEE Access, 2020
At present, three-phase 115V/360-800Hz variable frequency AC power system is mostly used in the main power system of More-Electric Aircraft. With the increase of EMA (Electro-Mechanical Actuator), EHA (Electro-Hydrostatic Actuator), DC/DC power supply ...
Zhenyang Hao, Xinying Wang, Xin Cao
doaj   +1 more source

Comparative Energy Analysis of a Load Sensing System and a Zonal Hydraulics for a 9-Tonne Excavator

open access: yesActuators, 2020
With the rising demand for energy efficiency, displacement-controlled or so-called pump-controlled systems have become an attractive research topic for applications in construction machinery and other off-road vehicles.
Paolo Casoli   +3 more
doaj   +1 more source

Variable displacement electro-hydrostatic actuator [PDF]

open access: yesProceedings of the IEEE 1991 National Aerospace and Electronics Conference NAECON 1991, 2002
The author discusses the effects of pump displacement on electro-hydrostatic actuator (EHA) performance characteristics and the possible advantages of using a variable displacement pump in an EHA. Issues discussed are heating, size, and stiffness.
openaire   +1 more source

Robust Nonlinear Position Control with Extended State Observer for Single-Rod Electro-Hydrostatic Actuator

open access: yesMathematics, 2021
In the existing literature, studies on position controller design using only position feedback, considering the disturbances for single-rod electro-hydrostatic actuators (EHAs), have not been reported.
Young Seop Son, Wonhee Kim
doaj   +1 more source

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