Results 71 to 80 of about 12,946 (228)
Study on the relationship between structure and properties of electro-hydraulic positioning actuators [PDF]
Archive of Mechanical EngineeringIn this work, a novel perspective is proposed to develop schematics solutions for electro-hydraulic positioning actuators. The basis of the design approach has been established, which includes: a set of possible desired properties of actuators; a series ...
Qiang Li, Oleksandr Uzunov
doaj +1 more source
Researches on the hybrid electro-hydraulic actuators
Journal of Engineering Sciences and InnovationThe new generation of „more electric” actuators involve simpler, cheaper and lighter power generation and distribution architectures. To achieve this goal, the electro hydraulic servovalves controlled by electrical signals have to be eliminated in the frame of the new concept „Power-by-Wire”, which uses electric power to actuate flight control surfaces,
NICOLAE VASILIU +3 more
openaire +1 more source
Helmholtz resonance in a piezoelectric–hydraulic pump-based hybrid actuator [PDF]
, 2011 This paper demonstrates that a hydraulically acting Helmholtz resonator can exist in a piezoelectric–hydraulic pump (PHP) based hybrid actuator, which in turn affects the volumetric efficiency of the PHP.
Kim, Gi-Woo, Wang, K. W.
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Beyond feasibility filters: How expertise heterogeneity enables innovation recognition
Strategic Management Journal, EarlyView.Abstract Research Summary Organizations often struggle to identify promising innovations that balance novelty and feasibility in multidisciplinary domains, yet how does evaluator expertise heterogeneity shape these assessments? This study examines how evaluator expertise influences innovation evaluation through a field experiment with National ...
Jacqueline N. Lane +3 more
wiley +1 more source
A study of low-cost reliable actuators for light aircraft. Part A: Chapters 1-8 [PDF]
An analysis involving electro-mechanical, electro-pneumatic, and electro-hydraulic actuators was performed to study which are compatible for use in the primary and secondary flight controls of a single engine light aircraft.
Eijsink, H., Rice, M.
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Design and development of the quad redundant servoactuator for the space shuttle solid rocket booster thrust vector control [PDF]
, 1980 The design and theory of operation of the servoactuator used for thrust vector control of the space shuttle solid rocket booster is described accompanied by highlights from the development and qualification test programs.
Lominick, J. M.
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Evaluation of prestress losses in concrete beams using destructive and non‐destructive methods
Structural Concrete, EarlyView.Abstract Over the past few decades, prestressing techniques have become essential in the construction of key structures, infrastructure, and bridges. The serviceability and safety of prestressed concrete (PC) elements are closely tied to the effectiveness of the prestressing process.
A. N. Consiglio, G. Muciaccia, G. Rosati
wiley +1 more source
Ecosystem‐Centered Robot Design: Toward Ecoresorbable Sustainability Robots (ESRs)
Advanced Science, Volume 13, Issue 15, 13 March 2026.Robots exploring natural ecosystems can support monitoring and conservation, but must adopt ecosystem‐centered design to avoid pollution, waste, and damage. This review proposes guidelines for co‐designing ecoresorbable sustainability robots (ESRs), uniting materials, robotics, and ecological contexts in a single framework.
Tülin Yılmaz Nayır +4 more
wiley +1 more source
Burn‐Safe Biodegradable Magnetocaloric Composites for Temperature‐Controlled Biomedical Applications
Advanced Science, Volume 13, Issue 15, 13 March 2026.This work investigates a magnetocaloric (Mn,Fe)2(P,Si) compound tailored for precise, self‐regulating heating in biomedical use. With a Curie temperature tuned at 43 °C, it enables therapeutic activation without overheating. Encapsulation in a composite ensures controlled temperature rise under an alternating magnetic field (AMF), with high ...
Pornpawee Uliss +8 more
wiley +1 more source
IEEE Access, 2020 This paper addresses the trajectory tracking problem for constrained high dynamic electro-hydraulic actuator in the presence of time-varying parameters, high frequency external load interference, measurement noise and some unmeasurable states.
Jie Huang +5 more
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