Advances in Noises and Vibrations for Machines

A special issue of Machines (ISSN 2075-1702). This special issue belongs to the section "Machines Testing and Maintenance".

Deadline for manuscript submissions: 30 September 2024 | Viewed by 1514

Special Issue Editors


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Guest Editor
Faculty of Electrical and Computer Engineering, Cracow University of Technology, 31-155 Cracow, Poland
Interests: structural health monitoring; machinery fault diagnosis; finite element modelling; uncertainty quantification of manufacturing processes and dynamic systems; reliability analysis and robust design optimization; smart structures and sensing technologies including full non-contact methods
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Guest Editor

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Guest Editor
Department of Engineering, The University of Perugia, 06125 Perugia, Italy
Interests: wind turbine; vibrations; aeroelasticity; fault diagnosis; wakes; SCADA; applied aerodynamics; mechanical system dynamics
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

Vibration analysis and monitoring are currently required in various fields of industries, from automotive and aeronautics to manufacturing and quality control, from machining and maintenance to civil engineering.

Machine vibration is a normal and typically unavoidable result of moving and rotating parts or the effects of the ground-motion transfer on an object. To mitigate the negative effects of vibration, in many cases, they need to be assessed and monitored. Vibrations, as well as noise measurements, are also a good indication of systems' behaviour or the degrading quality of the product in the case of manufacturing. Vibration, especially modal analysis of structures and machines, is also a good way to validate a finite element model.

The current industrial trends focus on noise and vibration mitigations but also the use of contact and non-contact novel-sensing technologies for measurements. 

For this Special Issue, all papers, theoretical or experimental, on all aspects of a machine's vibration, especially in relation to civil, mechanical and aerospace engineering applications, as well as transport, materials and geoscience, are invited.

The contributions to this Special Issue may deal with all aspects of vibrations and their occurrence in the machines, especially:

  • Diagnostics of the machines;
  • Structural health monitoring;
  • Measurement techniques in sound and vibration engineering;
  • Computational methods in vibration problems;
  • Modeling and identification of dynamical systems;
  • Mathematical modeling in sound and vibration analysis;
  • Signal processing and analysis;
  • Active vibration control;
  • Energy methods in vibration engineering;
  • Dynamics of machinery and rotating systems;
  • Vibroacoustics of machinery;
  • Vibrations and noises of transport systems, vehicles and roads;
  • Structural dynamics, vibrations of composite materials structures;
  • Vibration problems in environmental engineering;
  • Vibrations and dynamic stability of structural elements of machines;
  • Flow-induced vibrations, fluid-structure interaction;
  • Dynamic behavior of Vibration Isolation Elements and Systems.

Both review papers and in-depth research papers on new developments in this field will be collected in this Special Issue.

Dr. Lukasz Scislo
Dr. Davide Astolfi
Dr. Francesco Castellani
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. Machines 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

  • vibration measurement
  • vibration control
  • condition monitoring
  • vibratory machines
  • vibration control
  • finite element modelling
  • structural health monitoring
  • modal analysis
  • FFT
  • noise control

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Published Papers (1 paper)

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Research

22 pages, 14922 KiB  
Article
A Method to Obtain Frequency Response Functions of Operating Mechanical Systems Based on Experimental Modal Analysis and Operational Modal Analysis
by Cunrui Shen and Chihua Lu
Machines 2024, 12(8), 516; https://doi.org/10.3390/machines12080516 - 29 Jul 2024
Viewed by 528
Abstract
The characteristics of a mechanical structure under operating conditions may differ from those in a static state. It is often more desirable to obtain the frequency response function (FRF) of the operating structure in engineering applications. While operational modal analysis (OMA) can estimate [...] Read more.
The characteristics of a mechanical structure under operating conditions may differ from those in a static state. It is often more desirable to obtain the frequency response function (FRF) of the operating structure in engineering applications. While operational modal analysis (OMA) can estimate modal parameters during operation, it fails to provide mass-normalized mode shapes for FRF synthesis. This paper presents a new method using experimental modal analysis (EMA) to compensate for the absent information in OMA. It categorizes operational mode shapes into changed ones and those that remain the same compared to the static state, applying different scaling techniques accordingly. This method adapts to changes in dynamic characteristics without altering the operating conditions. Stability is emphasized throughout the process. Two examples are provided to verify the method, considering noise and incompleteness in measurement, and disturbances in dynamic properties. The proposed method is proven to be feasible and reliable to capture the changes in operational FRFs. Full article
(This article belongs to the Special Issue Advances in Noises and Vibrations for Machines)
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