Results 101 to 110 of about 1,506 (202)

Analysis of tool-mass-acceleration effects onto sub-aperture computer controlled polishing (CCP) [PDF]

, 2016
Although computer controlled polishing (CCP) of aspheres and freeforms is one of the best understood state-of-the-art fab processes today, there are yet some unsolved issues: e.g. compared to bonnet polishing, fluid jet polishing is taking less iteration
Faehnle, Oliver, Fähnle, Oliver, Rascher, Rolf, Schopf, Christian, Walker, David D., Wünsche, Christine, Yu, Guoyu   +6 more
core   +1 more source

3D-Printed Soft Structure of Polyurethane and Magnetorheological Fluid: A Proof-of-Concept Investigation of its Stiffness Tunability

Micromachines, 2019
In this study, a soft structure with its stiffness tunable by an external field is proposed. The proposed soft beam structure consists of a skin structure with channels filled with a magnetorheological fluid (MRF). Two specimens of the soft structure are
Seong-Woo Hong, Ji-Young Yoon, Seong-Hwan Kim, Sun-Kon Lee, Yong-Rae Kim, Yu-Jin Park, Gi-Woo Kim, Seung-Bok Choi   +7 more
doaj   +1 more source

Design of an Asymmetric Damping Structure for a Single Cylinder and Single Rod MR Damper

IEEE Access
Magnetorheological (MR) dampers possess the ability to alter the damping force of the damper by modifying the viscosity of Magnetorheological Fluid (MRF).
Jiangqi Long, Min Zhou, Yinghao Hu, Jianhong Zhang   +3 more
doaj   +1 more source

Characteristics, Optimal Design, and Performance Analyses of MRF Damper

Shock and Vibration, 2018
Magnetorheological fluid (MRF) damper is one of the most promising semiactive devices for vibration control. In this paper, a shear-valve mode MRF damper for pipeline vibration control is proposed. The dynamic model and the state equation of the pipeline
Xin De-kui, Nie Song-lin, Ji Hui, Yin Fang-long   +3 more
doaj   +1 more source

Limiting and Degradation Processes of Magnetorheological Suspension Dampers [PDF]

, 2011
Tato práce se zabývá výzkumem degradace magnetoreologické (MR) kapaliny v průběhu dlouhodobého zatěžování v podmínkách, které odpovídají reálnému zatížení v lineárních MR zařízení, např. v tlumičích.
Roupec, Jakub
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Characterization of rheological behavior, dispersion phenomenon and magnetic property of magnetorheological fluids with hard and soft nanoparticle additives

Journal of the Mechanical Behavior of Materials
In this study, the effects of CoFe2O4 (as hard magnetic) nanoparticle addition and MnFe2O4 (as soft magnetic) nanoparticle addition in carbonyl iron powder-based magnetorheological fluid were investigated. Both types of nanoparticles (CoFe2O4 and MnFe2O4)
Nugroho Kacuk Cikal, Ubaidillah, Bahiuddin Irfan, Purnama Budi, Widodo Purwadi Joko, Choi Seung-Bok, Aziz Siti Aishah Binti Abdul   +6 more
doaj   +1 more source

Environmentally friendly chemical–magnetorheological finishing method for Ti–6Al–4V biological material based on Fe3O4@SiO2, oxaloacetate acid and H2O2

International Journal of Lightweight Materials and Manufacture
Titanium alloy is extensively utilised in various advanced equipment across multiple industries, especially in biological implantable devices. The surface machining of such devices is required to provide a finished surface with high precision and gloss ...
Le Anh Duc, Vu Minh Yen, Nguyen Duy Trinh   +2 more
doaj   +1 more source

Magnetorheological Fluid-Based Haptic Feedback Damper

Applied Sciences
Damping involves the various frictional and other obstructive effects that attenuate free vibration. For a long time, people have mainly used it to make various dampers to reduce mechanical vibration and consume kinetic energy.
Pei Kang, Sijia Liu, Tao Zeng
doaj   +1 more source

A Lyapunov Based Multi-level Controller for Semi-active Suspension System with an MRF Damper [PDF]

[[abstract]]In this work, we study the implementation of magnetorheological fluid (MRF) to the semi-active suspension. Owing to the nonlinear hysteretic phenomenon, the analysis and synthesis of a controller are not trivial.
Tyan, Feng
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Using a ferro-fluid pad to climb walls [PDF]

, 2013
Thesis (S.B.)--Massachusetts Institute of Technology, Dept. of Mechanical Engineering, 2013.Cataloged from PDF version of thesis.Includes bibliographical references (page 31).The goal of this thesis is to build a wall climbing system that utilizes the ...
Buchman, Michael Rafael.
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