Results 41 to 50 of about 1,371 (244)

Development of SCARA-Type Haptic Device for Electrostatic Non-Contact Handling System

open access: yesJournal of Advanced Mechanical Design, Systems, and Manufacturing, 2008
This paper describes the development of a SCARA-type haptic device, which will be used to assist a human operator in non-contact object handling of silicon wafers using electrostatic levitation. The device has three degrees of freedom, of which only one (
Ewoud van WEST   +3 more
doaj   +1 more source

Large Stepwise Discrete Microsystem Displacements Based on Electrostatic Bending Plate Actuation

open access: yesActuators, 2021
We present the design, fabrication, and experimental characterization of microsystems achieving large and stepwise discrete displacements. The systems consist of electrostatic bending plate actuators linked in a chain with increasing electrode gaps to ...
Lisa Schmitt, Martin Hoffmann
doaj   +1 more source

Electrostatic tuning of the bending stiffness of a large scale GFRP-CFRP beam [PDF]

open access: yesSPIE Proceedings, 2006
The suppression of vibrations of a structure is commonly considered a necessary measure for the extension of its lifetime, when high amplitude vibrations are observed. As an alternative to the introduction of discrete damping devices, the modification of the stiffness of a beam is proposed as a means to suppress vibrations due to resonance, thank
A. Bergamini, R. Christen, M. Motavalli
openaire   +1 more source

A self-centering and stiffness-controlled MEMS accelerometer

open access: yesMicrosystems & Nanoengineering
This paper presents a high-performance MEMS accelerometer with a DC/AC electrostatic stiffness tuning capability based on double-sided parallel plates (DSPPs).
Yiming Jin   +5 more
doaj   +1 more source

INFLUENCE OF REINFORCING POLYMETHYL METHACRYLATE BY CARBON FIBRES ON FRICTION AND WEAR [PDF]

open access: yesJournal of the Egyptian Society of Tribology, 2017
The present work aims to investigate the influence of reinforcing polymethyl methacrylate (PMMA) by continuous carbon fibres (CF) on the friction coefficient and wear resistance.
A. A. Ibrahim
doaj   +1 more source

Does Long‐Term Lower Extremity Strength Training in Adults With Knee Osteoarthritis and Varus Alignment Reduce Knee Joint Loading During Gait?

open access: yesArthritis Care &Research, EarlyView.
Objective We examined whether 18 months of strength training in individuals with knee varus alignment and medial tibiofemoral osteoarthritis (OA) reduced knee joint loads during walking compared to an attention control group. Methods This study was a secondary analysis of a randomized clinical trial that compared the effects of strength training to a ...
Stephen P. Messier   +12 more
wiley   +1 more source

Electrochemical Evaluation of Compressed Selective Laser Melted AlSi7Mg and AlSi10Mg Alloys in Chloride Environment

open access: yesAdvanced Engineering Materials, EarlyView.
The corrosion performance of AlSi7Mg and AlSi10Mg alloys produced through selective laser melting (SLM) was examined under compressive stress in a chloride environment. Electrochemical analyses, including open‐circuit potential (OCP), potentiodynamic polarization (CPP), and electrochemical impedance spectroscopy (EIS), were complemented by scanning ...
Femi John Akinfolarin   +2 more
wiley   +1 more source

A Numerical–Experimental Approach for Multi‐Matrix Fiber‐Reinforced Plastics Characterization Using Finite Element Model Updating

open access: yesAdvanced Engineering Materials, EarlyView.
A numerical–experimental framework is developed for characterizing multi‐matrix fiber‐reinforced polymers (MM‐FRPs) combining epoxy and polyurethane matrices. Harmonic bending tests are integrated with finite element model updating (FEMU) to simultaneously identify elastic and viscoelastic material parameters.
Rodrigo M. Dartora   +4 more
wiley   +1 more source

Electrostatic adhesion for added functionality of composite structures [PDF]

open access: yes, 2016
Electrostatic adhesion can be used as a means of reversible attachment. The incorporation of electrostatic adhesion into fibre reinforced polymer (FRP) composite structures could provide significant value added functionality.
Heath, Callum J C   +2 more
core   +1 more source

Periodic solutions of a graphene based model in micro-electro-mechanical pull-in device

open access: yesApplied and Computational Mechanics, 2017
Phase plane analysis of the nonlinear spring-mass equation arising in modeling vibrations of a lumped mass attached to a graphene sheet with a fixed end is presented.
Wei D., Kadyrov S., Kazbek Z.
doaj   +1 more source

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