Advances in Fluid Power Systems and Actuators

A special issue of Actuators (ISSN 2076-0825). This special issue belongs to the section "High Torque/Power Density Actuators".

Deadline for manuscript submissions: 30 November 2025 | Viewed by 447

Special Issue Editors


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Guest Editor
CATMech—Department of Fluid Mechanics, Universitat Politecnica de Catalunya, ES-08222 Terrassa, Catalunya, Spain
Interests: fluid power; computational fluid dynamics (CFD); experimental characterization; energy efficiency; flow visualization; design software; control design

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Guest Editor
CATMech—Department of Fluid Mechanics, Universitat Politecnica de Catalunya, ES-08222 Terrassa, Catalunya, Spain
Interests: fluid power; gerotor; design tools; mechanical dynamics; bond graph; numerical simulation; CFD; experimental techniques; PIV
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

The aim of this Special Issue on "Advances in Fluid Power Systems and Actuators" is to contribute to the current body of knowledge by sharing the latest developments in fluid power technology, that is, the transmission of forces and motions using a confined and pressurized fluid with its main overall merit of density power. This Special Issue includes a broad range of subjects, including the following:

  • New methodologies for the analysis, modeling, simulation, and design of hydraulic and pneumatic components;
  • Advanced configurations and design for hydrostatic pumps and motors;
  • New configurations and design solutions for hydraulic valves and actuators;
  • New experimental approaches and techniques in hydraulic and pneumatic components;
  • Component sizing and manufacturing techniques in fluid power components;
  • New materials in fluid power components;
  • Advanced system configuration in mobile and industrial fluid power;
  • Applications of fluid power in the field of hydrostatic, hybrid, and power split transmissions;
  • Energy rating in fluid power systems;
  • Monitoring, fault detection, and life reliability in fluid power components;
  • Design by end-user: diagnosis, prognostic, and energy consumption evaluation;
  • Hydraulic drives and actuators in powered prosthetics;
  • Noise and vibration in hydraulic components and systems.

Dr. Mercè Garcia-Vilchez
Dr. Pedro Javier Gamez-Montero
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

  • fluid power
  • simulation
  • hydraulics
  • mechanical design
  • manufacturing
  • experimental techniques
  • fault detection
  • noise
  • vibration

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Published Papers (1 paper)

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Research

23 pages, 9338 KiB  
Article
Numerical Investigation of the Tribological Performance of Surface-Textured Bushings in External Gear Pumps Under Transient Lubrication Conditions
by Paolo Casoli, Masoud Hatami Garousi, Massimo Rundo and Carlo Maria Vescovini
Actuators 2025, 14(7), 345; https://doi.org/10.3390/act14070345 - 11 Jul 2025
Viewed by 184
Abstract
This study presents a computational fluid dynamics (CFDs) investigation of the hydrodynamic behavior of surface-textured lateral bushings in external gear pumps (EGPs), emphasizing the effects of combined sliding and squeezing motions within the lubrication gap. A comprehensive numerical model was developed to analyze [...] Read more.
This study presents a computational fluid dynamics (CFDs) investigation of the hydrodynamic behavior of surface-textured lateral bushings in external gear pumps (EGPs), emphasizing the effects of combined sliding and squeezing motions within the lubrication gap. A comprehensive numerical model was developed to analyze how surface texturing implemented through different dimple shapes and texture densities influences pressure distribution and load-carrying capacity under transient lubrication conditions. The analysis demonstrates that the interaction between shear-driven flow and squeeze-film compression significantly amplifies pressure, particularly when optimal dimple configurations are applied. Results indicate that dimple geometry, depth, and arrangement critically influence hydrodynamic performance, while excessive texturing reduces effectiveness due to increased average gap height. Cavitation was intentionally not modeled in the early single dimple evaluations to allow clear comparison between configurations. The findings offer a design guideline for employing surface textures to enhance tribological performance and efficiency in EGP applications under realistic dynamic conditions. Full article
(This article belongs to the Special Issue Advances in Fluid Power Systems and Actuators)
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