Results 51 to 60 of about 31,130 (302)
Micromachines, 2021 The paper presents a numerical and experimental investigation of a novel two degrees of freedom (2-DOF) piezoelectric actuator that can generate rotary motion of the sphere-shaped rotor as well as induce planar motion of the flat stage.
Andrius Čeponis +2 more
doaj +1 more source
Fault tolerant linear actuator [PDF]
, 2003 In varying embodiments, the fault tolerant linear actuator of the present invention is a new and improved linear actuator with fault tolerance and positional control that may incorporate velocity summing, force summing, or a combination of the two.
Tesar, Delbert
core +1 more source
Current Status and Challenges in Data Collection for Aerospace Coatings Deposited by Plasma Spraying
Advanced Engineering Materials, EarlyView.An innovative approach has been integrated into the GRENAT project to optimize plasma spraying and coating performance. Raw materials are accelerated and melted in the plasma generated by torches, creating coatings. Monitoring sensors collect process data which are combined with ex situ characterization data.
Lila Randriamananjara +8 more
wiley +1 more source
On the Possibility of Cross-Flow Vortex Cancellation by Plasma Actuators
Aerospace, 2023 Cancellation of the cross-flow vortices in a swept-wing boundary layer is attempted by plasma actuator array in numerical simulation. The response of the boundary layer to the stationary excitation by a single actuator section is measured experimentally ...
Amir Abdullaev +3 more
doaj +1 more source
Soft Mechanical‐Electrical Logic Using Liquid Metal‐Filled 3D‐Printed Architectures
Advanced Engineering Materials, EarlyView.We present 3D‐printed soft mechanical–electrical logic elements that use liquid metal–filled silicone tubes actuated by thermoplastic polyurethane/polylactic acid (TPU/PLA) architectures to produce Boolean operations. Complementary normally open and normally closed unit cells perform repeatable binary transitions and can be combined into more complex ...
Christoph Lehmann +2 more
wiley +1 more source
Linear actuator for a submersible water pump for use in boreholes [PDF]
, 2007 Both the theory and the test results show that the E-core electromagnet linear actuator, which is based on the variable reluctance principle, can generate a normal force in excess of 400kNm(^-2) when there is a flux density of IT within the airgap.
Cain, Martin
core
Cathodic Cage Plasma Deposition of Nanostructured Cu–Fe–Se Coatings on Poly(methyl Methacrylate)
Advanced Engineering Materials, EarlyView.Nanostructured Cu–Fe–Se coatings are deposited on PMMA by a modified cathodic cage plasma process, enabling low‐temperature deposition on polymer substrates. A transition from discontinuous to compact morphology is observed with temperature, with optimal properties at 200°C, where improved CuFeSe2‐type bonding, lowest sheet resistance, and favorable ...
V. S. S. Sobrinho +8 more
wiley +1 more source
Adaptive control of uncertain non-linear fractional-order systems in the presence of actuator failures and input constraints [PDF]
تصمیم گیری و تحقیق در عملیاتPurpose: This paper studies the problem of adaptive actuator failure compensation in non-linear fractional-order systems with strict feedback forms and provides a theoretical framework for designing control systems in the presence of parametric ...
Masood Bagherzadeh
doaj +1 more source
Lightweight design of piezoelectric linear displacement accumulation actuator for airfoil deployment
Xibei Gongye Daxue Xuebao, 2023 The electromagnetic servo steering gear commonly used in the modern small guided aircraft has parasitic electromagnetic fields that affect the navigation and guidance accuracy, and its deceleration mechanism will increase the volume and mass, and the ...
LU Huanhuan +4 more
doaj +1 more source
Application and Validation of a Linear Electromagnetic Actuator within a Haptic Piano Keyboard
, 2019 Using a linear actuator in a digital keyboard allows to reproduce the touch of an acoustic piano action. Our work consists in the design of a one-key prototype actuated by a linear electromagnetic voice coil.
Dehez, Bruno +3 more
core +1 more source