Results 211 to 220 of about 57,721 (257)
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Experimental modal analysis of bows
The Journal of the Acoustical Society of America, 2008The vibration performances of bow instruments are usually studied developing numerical and experimental modal analyses of the body of the instrument or of their parts (tailpiece, bridge, fingerboard, neck). The dynamic contribution of the bow is less considered, but the mutual actions generated between bow and strings are conditioned by the mechanical ...
RAVINA, ENRICO +2 more
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MECHANICAL SYSTEM EXPERIMENTAL MODAL ANALYSIS
2023challenges that are of significant importance to modal analysis test engineers are investigated. Automated modal analysis, which is being developed right now in a wide variety of facilities all over the world at the present, is to blame for the problems that have arisen as a result of it.
Ajay Kumar +2 more
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Uncertainty propagation in Experimental Modal Analysis
As all experimental procedures, Experimental Modal Analysis (EMA) is subject to a wide range of potential testing and processing errors. The modal identification methods are sensitive to these errors, yielding modal results which are uncertain up to certain error bounds.Peeters, Bart +3 more
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The context of experimental modal analysis
Philosophical Transactions of the Royal Society of London. Series A: Mathematical, Physical and Engineering Sciences, 2001The basic principle of describing a structure9s dynamic behaviour in terms of its vibration modes was first explored by Rayleigh over a century ago. Since then, engineers have sought to harness this powerful approach as a means of solving a wide range of practical problems in structural dynamics.
Lieven, NAJ, Ewins, DJ
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Modal Truncation in Experimental Modal Analysis
Some methods in experimental modal analysis rely on a finite set of modes and they neglect the higher modes. However, this approach causes a truncation of the modal decomposition and the modal truncation introduces errors of unknown magnitude. In this paper the effect of modal truncation is investigated on a test specimen in the laboratory. It is foundMarius Tarpø +2 more
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Experimental modal analysis and modal parameters extraction
2009A case study approach in the inverse analysis of the modal extraction parameter has been implemented. The Mathematical model has been used to generate time response and random generator to generate added noise. The accuracy of modal parameters extraction techniques to error-contaminated measured data has been assessed for the simple examples.
Lozina, Željan +2 more
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Experimental Modal Analysis on Automotive Development
SAE Technical Paper Series, 2003<div class="htmlview paragraph">In the last years, vehicle vibroacoustics has expanded as a basic and applied research area. Structural dynamic methods and technologies have been used with great success by the automotive industry. Experimental modal analysis is the process of determining the modal parameters (modes, frequencies and damping ...
Fabio Guilherme Ferraz +3 more
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Signal processing for experimental modal analysis
Philosophical Transactions of the Royal Society of London. Series A: Mathematical, Physical and Engineering Sciences, 2001Summary: This paper is an overview of signal processing for modal analysis. The approach taken is to summarize some of the types of data that arise in modal analysis, to classify signal processing problems, and to attempt to show the relevance of the latter to the former.
Hammond, Joseph K., Waters, Timothy P.
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Modal Truncation in Experimental Modal Analysis
2018Some methods in experimental modal analysis rely on a finite set of modes and they neglect the higher modes. However, this approach causes a truncation of the modal decomposition and the modal truncation introduces errors of unknown magnitude. In this paper the effect of modal truncation is investigated on a test specimen in the laboratory. It is found
Tarpø, Marius Glindtvad +2 more
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