Magnetorheological Actuators and Dampers

A special issue of Actuators (ISSN 2076-0825). This special issue belongs to the section "Precision Actuators".

Deadline for manuscript submissions: 31 May 2024 | Viewed by 1446

Special Issue Editors


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Guest Editor
Institute of Machine and Industrial Design, Faculty of Mechanical Engineering, Brno University of Technology, Technicka 2, 616 69 Brno, Czech Republic
Interests: smart materials and structures; dampers; actuators; semiactive control; vibration control; transient response; response time; magnetorheological fluid

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Guest Editor
Faculty of Electrical and Computer Engineering, Cracow University of Technology, ul. Warszawska 24, 31-155 Krakow, Poland
Interests: magnetorheology; magnetorheological actuators; magnetorheological dampers; vibration control; adaptive control

Special Issue Information

Dear Colleagues,

Semi-active magnetorheological (MR) actuators and dampers have been commonly used in diverse applications such as vehicular seat suspension, passenger car suspension, engine mount vibration control, medical rehabilitation, robotics, or anti-earthquake structures. However, various factors, namely durability, temperature operating range, weight, cost, etc., have delayed the progress and the commercialization of the technology in certain areas. Therefore, it is necessary to focus on developing novel designs of MR dampers and actuators to meet the most stringent requirements of industrial practice. Therefore, the goal of this Special Issue is to cover the novel designs and applications of semi-active MR dampers and actuators. Theoretical inquiries presenting models capable of predicting the behavior of such devices and preferably supported by experimental studies are also welcome. Finally, the editors would like to invite research studies documenting recent progress in developing dedicated application-oriented MR fluid formulations.

We kindly invite you to submit a manuscript(s) for this Special Issue. Full papers and topical reviews are all welcome.

Dr. Michal Kubík
Dr. Janusz Gołdasz
Guest Editors

Manuscript Submission Information

Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All submissions that pass pre-check are peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 100 words) can be sent to the Editorial Office for announcement on this website.

Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Actuators is an international peer-reviewed open access monthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 2400 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

Keywords

  • semiactive control
  • magnetorheological damper
  • design
  • modeling
  • magnetorheological fluid
  • damper
  • actuator

Published Papers (1 paper)

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Research

14 pages, 7208 KiB  
Article
Assessment of the Dynamic Range of Magnetorheological Gradient Pinch-Mode Prototype Valves
by Jiří Žáček, Janusz Goldasz, Bogdan Sapinski, Michal Sedlačík, Zbyněk Strecker and Michal Kubík
Actuators 2023, 12(12), 449; https://doi.org/10.3390/act12120449 - 04 Dec 2023
Cited by 1 | Viewed by 1125
Abstract
Magnetorheological (MR) fluids have been known to react to magnetic fields of sufficient magnitudes. While in the presence of the field, the material develops a yield stress. The tunable property has made it attractive in, e.g., semi-active damper applications in the vibration control [...] Read more.
Magnetorheological (MR) fluids have been known to react to magnetic fields of sufficient magnitudes. While in the presence of the field, the material develops a yield stress. The tunable property has made it attractive in, e.g., semi-active damper applications in the vibration control domain in particular. Within the context of a given application, MR fluids can be exploited in at least one of the fundamental operating modes (flow, shear, squeeze, or gradient pinch mode) of which the gradient pinch mode has been the least explored. Contrary to the other operating modes, the MR fluid volume in the flow channel is exposed to a non-uniform magnetic field in such a way that a Venturi-like contraction is developed in a flow channel solely by means of a solidified material in the regions near the walls rather than the mechanically driven changes in the channel’s geometry. The pinch-mode rheology of the material has made it a potential candidate for developing a new category of MR valves. By convention, a pinch-mode valve features a single flow channel with poles over which a non-uniform magnetic field is induced. In this study, the authors examine ways of extending the dynamic range of pinch-mode valves by employing a number of such arrangements (stages) in series. To accomplish this, the authors developed a prototype of a multi-stage (three-stage) valve, and then compared its performance against that of a single-stage valve across a wide range of hydraulic and magnetic stimuli. To summarize, improvements of the pinch-mode valve dynamic range are evident; however, at the same time, it is hampered by the presence of serial air gaps in the flow channel. Full article
(This article belongs to the Special Issue Magnetorheological Actuators and Dampers)
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