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Finite Element Design and Manufactur...

Abaeian, Negin,

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Finite Element Design and Manufacturing of a Nylon-String Guitar Soundboard from Sandwich-Structured Composites /

Record Type:	Electronic resources : Monograph/item
Title/Author:	Finite Element Design and Manufacturing of a Nylon-String Guitar Soundboard from Sandwich-Structured Composites // Negin Abaeian.
Author:	Abaeian, Negin,
Description:	1 electronic resource (128 pages)
Notes:	Source: Masters Abstracts International, Volume: 82-09.
Contained By:	Masters Abstracts International82-09.
Subject:	Guitars. -
Online resource:	https://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=28249174
ISBN:	9798582592938

Finite Element Design and Manufacturing of a Nylon-String Guitar Soundboard from Sandwich-Structured Composites /
Abaeian, Negin,

Finite Element Design and Manufacturing of a Nylon-String Guitar Soundboard from Sandwich-Structured Composites /Negin Abaeian. - 1 electronic resource (128 pages)

Source: Masters Abstracts International, Volume: 82-09.

The aim of this project was to use the Finite Element Method (FEM) to design and manufacture the soundboard of a nylon-string guitar from sandwich-structured composites, with reference to an existing wooden soundboard, and to evaluate the accuracy of the numerical models of the wooden soundboard, the brace-less composite top plate and the braced composite soundboard by means of experimental modal analysis.The modal behaviour of the existing wooden soundboard was studied through experimental modal analysis and numerical simulation. Using FEM, the effects of varying certain physical, geometric and elastic properties of the materials used in the soundboard were determined on its natural frequencies under free and hinged Boundary Conditions (BCs). The composite soundboard that was determined to have natural frequencies relatively similar to those of the wooden soundboard under hinged BCs, and could be built from commercially available materials was constructed. To verify the results predicted numerically, experimental modal analyses were performed on the brace-less composite top plate and the braced composite soundboard under free BCs.The experimental natural frequencies and mode-shapes of the constructed brace-less top plate were found to match those predicted by the simulation in the frequency range below 200 [Hz], while slightly diverging in the higher frequency range. The experimental results for the braced composite soundboard were also found to be relatively similar to the numerically predicted values, with most mode-shapes matching, and some differences in the mode-frequencies, mostly in the low and mid-frequency ranges. Overall, a reasonable agreement was achieved between the numerical and the experimental results.

English

ISBN: 9798582592938Subjects--Topical Terms:

3687719
Guitars.
Subjects--Index Terms:

Musical instruments

Finite Element Design and Manufacturing of a Nylon-String Guitar Soundboard from Sandwich-Structured Composites /
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100 1 $a Abaeian, Negin, $e author. $3 3829244
245 1 0 $a Finite Element Design and Manufacturing of a Nylon-String Guitar Soundboard from Sandwich-Structured Composites / $c Negin Abaeian.
264 1 $a Ann Arbor : $b ProQuest Dissertations & Theses, $c 2017
300 $a 1 electronic resource (128 pages)
336 $a text $b txt $2 rdacontent
337 $a computer $b c $2 rdamedia
338 $a online resource $b cr $2 rdacarrier
500 $a Source: Masters Abstracts International, Volume: 82-09.
500 $a Advisors: Scavone, Gary; Lessard, Larry.
502 $b M.A. $c McGill University (Canada) $d 2017.
520 $a The aim of this project was to use the Finite Element Method (FEM) to design and manufacture the soundboard of a nylon-string guitar from sandwich-structured composites, with reference to an existing wooden soundboard, and to evaluate the accuracy of the numerical models of the wooden soundboard, the brace-less composite top plate and the braced composite soundboard by means of experimental modal analysis.The modal behaviour of the existing wooden soundboard was studied through experimental modal analysis and numerical simulation. Using FEM, the effects of varying certain physical, geometric and elastic properties of the materials used in the soundboard were determined on its natural frequencies under free and hinged Boundary Conditions (BCs). The composite soundboard that was determined to have natural frequencies relatively similar to those of the wooden soundboard under hinged BCs, and could be built from commercially available materials was constructed. To verify the results predicted numerically, experimental modal analyses were performed on the brace-less composite top plate and the braced composite soundboard under free BCs.The experimental natural frequencies and mode-shapes of the constructed brace-less top plate were found to match those predicted by the simulation in the frequency range below 200 [Hz], while slightly diverging in the higher frequency range. The experimental results for the braced composite soundboard were also found to be relatively similar to the numerically predicted values, with most mode-shapes matching, and some differences in the mode-frequencies, mostly in the low and mid-frequency ranges. Overall, a reasonable agreement was achieved between the numerical and the experimental results.
520 $a L'objectif de ce projet etait d'utiliser la Methode des Elements Finis (FEM) pour concevoir et fabriquer une table d'harmonie de guitare a cordes en nylon a partir de composites sandwiches en se referant a une table en bois existante, et d'evaluer la validite des modeles numeriques de la table d'harmonie en bois, de la plaque superieure en composite sans renforts et de la table d'harmonie composite renforcee au moyen d'une analyse modale experimentale.Le comportement modal de la table d'harmonie existante en bois a ete etudie au moyen de l'analyse modale experimentale et de la simulation numerique. En utilisant la MEF, l'effet de la variation de certaines proprietes physiques, geometriques et elastiques des materiaux utilises dans la table d'harmonie a ete determine sur ses frequences propres en utilisant des Conditions aux Limites (CL) soit libres soit immobiles (c. a-d., sans translations). La table d'harmonie en composite, dont on a determine qu'elle avait des frequences propres relativement similaires a celles de la table d'harmonie en bois sous CL immobiles, et qui peut etre construite a partir de materiaux disponibles dans le commerce, a ete produite. Pour verifier les resultats predits numeriquement, des analyses modales experimentales ont ete effectuees sur la plaque superieure composite et la table d'harmonie en composites sous CL non contraintes.Les frequences propres experimentales et les differents modes propres de la plaque superieure construite sans renforts correspondent a celles predites par la simulation dans la gamme de frequences inferieures a 200 [Hz], tout en divergeant dans la plage de frequences plus elevees. Les resultats experimentaux pour la table d'harmonie composite avec renforts se sont egalement reveles relativement similaires aux valeurs predites numeriquement, la plupart des formes de modes propres correspondantes, et certaines differences dans les frequences propres, principalement dans les plages de basses et moyennes frequences. Dans l'ensemble, un accord satisfaisant a ete obtenu entre les resultats numeriques et les resultats experimentaux.
546 $a English
590 $a School code: 0781
650 4 $a Guitars. $3 3687719
650 4 $a Musical instruments. $3 550167
650 4 $a Interferometry. $3 620597
650 4 $a Materials selection. $3 3689238
650 4 $a Acoustics. $3 879105
650 4 $a Composite materials. $3 654082
650 4 $a Materials science. $3 543314
653 $a Musical instruments
690 $a 0794
690 $a 0986
710 2 $a McGill University (Canada). $e degree granting institution. $3 3759190
720 1 $a Scavone, Gary $e degree supervisor.
720 1 $a Lessard, Larry $e degree supervisor.
773 0 $t Masters Abstracts International $g 82-09.
790 $a 0781
791 $a M.A.
792 $a 2017
856 4 0 $u https://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=28249174