Special Issue "Actuators and Dampers for Vibration Control: Damping and Isolation Applications"

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

Deadline for manuscript submissions: 30 November 2020.

Special Issue Editors

Dr. Emiliano Pereira González
Website
Guest Editor
Department of Signal Processing and Communications, Universidad de Alcalá, Madrid, Spain
Interests: vibration control; mainly focused on civil engineering and robotics applications
Prof. Dr. Paul Reynolds
Website
Guest Editor
University of Exeter, Exeter, UK
Interests: control of vibrations caused by human activities on civil engineering structures
Dr. Sumeet S. Aphale
Website
Guest Editor
University of Aberdeen, Aberdeen, UK
Interests: precision mechatronics and robotics; control of dynamical systems; vibration damping and isolation
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Special Issue Information

Dear Colleagues,

Mitigating vibration-induced system performance limitations has been an active area of research impacting several scientific and technological fields. Unwanted vibrations arise from several inherent and exogenous sources and severely limit performance in a wide range of systems, such as precision robots, high-sensitivity measuring devices, high-density storage devices, micro- and nanoscale machining, structural integrity, and human comfort in civil structures, as well as several aerospace and defense applications. Strategies to mitigate these unwanted vibration-related issues can be broadly grouped into two categories: (i) vibration damping and (ii) vibration isolation. Each of these categories can be further divided into two classes: (i) passive and (ii) active. Practical implementation of these strategies has resulted in significant research interest in the development of actuators and dampers. This Special Issue is focused on highlighting current developments in this area.

Contributions from all the fields related to actuators and dampers are welcome to this Special Issue. Of particular interest are:

  • Passive, semiactive, and active actuators used in damping and isolation applications;
  • Practical implementation issues of actuators in damping and isolation applications;
  • Optimization of isolation and damping vibration systems;
  • Vibration control in civil structures induced by wind, earthquakes, and humans;
  • Trajectory tracking in nanopositioners applications;
  • Robotics applications with flexibility in links or joints;
  • Vibration isolation in aerospace and defense applications;
  • Vibration isolation in extremely low vibration level applications.

Dr. Emiliano Pereira González
Prof. Dr. Paul Reynolds
Dr. Sumeet S. Aphale
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 papers will be 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 quarterly 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 1000 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

  • vibration damping
  • vibration isolation
  • precise positioning
  • trajectory tracking
  • alignment
  • inertial mass actuators
  • tuned mass damper
  • tuned liquid damper
  • electromagnetic damper
  • optimal design

Published Papers (1 paper)

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Research

Open AccessArticle
Efficiency of Coupled Experimental–Numerical Predictive Analyses for Inter-Story Floors Under Non-Isolated Machine-Induced Vibrations
Actuators 2020, 9(3), 87; https://doi.org/10.3390/act9030087 - 16 Sep 2020
Abstract
Machine-induced vibrations represent, for several reasons, a crucial design issue for industrial buildings. At the early design stage, special attention is thus required for the static and dynamic performance assessment of the load-bearing members, given that they should optimally withstand ordinary design loads [...] Read more.
Machine-induced vibrations represent, for several reasons, a crucial design issue for industrial buildings. At the early design stage, special attention is thus required for the static and dynamic performance assessment of the load-bearing members, given that they should optimally withstand ordinary design loads but also potentially severe machinery operations. The knowledge and reliable description of the input vibration source is a key step, similarly to a reliable description of the structural system, to verify. However, such a kind of detailing is often unavailable and results in a series of simplified calculation assumptions. In this paper, a case-study eyewear factory built in 2019 is investigated. Its layout takes the form of a two-story, two-span (2 × 14.6 m) precast concrete frame (poor customer/designer communication on the final equipment resulted in various non-isolated computer numerical control (CNC) vertical machines mounted on the inter-story floor, that started to suffer from pronounced resonance issues. Following past experience, this paper investigates the validity of a coupled experimental–numerical method that could be used for efficient assessment predictive studies. Based on on-site experiments with Micro Electro-Mechanical Systems (MEMS) accelerometers mounted on the floor and on the machine (spindle included), the most unfavorable machine-induced vibration sources and operational conditions are first characterized. The experimental outcomes are thus used to derive a synthetized signal that is integrated in efficient one-bay finite element (FE) numerical model of the floor, in which the machine–structure interaction can be taken into account. The predictability of marked resonance issues is thus emphasized, with a focus on potential and possible limits of FE methods characterized by an increasing level of detailing and computational cost. Full article
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Planned Papers

The below list represents only planned manuscripts. Some of these manuscripts have not been received by the Editorial Office yet. Papers submitted to MDPI journals are subject to peer-review.

Type: Article

Title: Adaptive Curved Surface Sliders for Improved Seismic Isolation

Authors: Felix Weber(1), Florian Obholzer(2), Manfred Hartinger(3), Johann Distl(3), Peter Huber(2), Christian Braun(2)

(1) Maurer Switzerland GmbH, Grossplatzstrasse 24, 8118 Pfaffhausen, Switzerland;

[email protected]

(2) Maurer SE, Frankfurter Ring 193, 80807 Munich, Germany;

[email protected]; [email protected]; [email protected]

(3) Maurer Engineering GmbH, Frankfurter Ring 193, 80807 Munich, Germany;

[email protected]; [email protected]

Abstract: Conventional curved surface sliders (CSS) isolate the structure by one isolation time period and one friction coefficient that are commonly optimized for the Design Basis Earthquake (DBE). As a consequence of these constant properties, on the one hand, efficient structural isolation for weak but frequent earthquakes is hardly possible and, on the other hand, the isolator relative motion due to the Maximum Considered Earthquake (MCE) becomes inacceptable large. This study presents a new type of a CSS with adaptive stiffness and damping behaviours that solve the above described trade-off. The basic idea of the adaptive CSS is described and the seismic performance is computed by non-linear time history analysis and compared to the performance of conventional CSS. The comparison confirms the improved seismic performance of the presented adaptive CSS.

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