Antes que este link desapareça por algum motivo, deixo-vos aqui algo para ler nos tempos livres:
Estou a ler aos poucos. Estou a gostar. Tem algumas coisas que confirmam aquilo que se fala aqui, outras são "novidade" (pelo menos para mim).
No entanto, também temos que observar algumas dificuldades deste tipo de trabalho. Deixo aqui uma conclusão do autor:
It seems that the three guitars dynamically behave in a very similar way, with almost the same modal frequencies, modal dampings and mode shapes. However, for the 4th mode of Ash guitar at 387Hz(torsional mode),whatever the excitation method, we can notice a signiﬁcantly different modal damping compared with the otherguitars (circled in Fig. 3.8).
From this Modal Analysis study, it can be concluded that the close similarities in term of dynamical behavior (modal parameters) of the three tested guitars are certainly due to their identical shapes and dimensions. The mode shapes show that the neck (plus the headstock) vibrates much more than the body, which could mean that the material of the neck has more inﬂuence than the material of the body on an electric guitar’s tone. Nevertheless, since the necks of these three tested guitars come from the same maple trunk, the slight and subtle differences in tone perceived by the participants of B.Navarret’stestbetweenthethreeguitarsmaybeduetothedifferentwoodsusedfor their body, particularly for ash.
In general, the type of connection (glued, bolted, screwed...) between the neck and
19 CHALMERS, Master’s Thesis 2009:76
the body is also of paramount importance, since it contributes to the overall damping i.e. the sustain of the guitar. For all the three tested guitars the neck is screwed to the body, so we can not compare that parameter. This being said, other important parts of an electric guitar which might have an inﬂuence on its tone are the string ends, where each of the six strings are connected to the instrument. This is the focus of the next chapter.
Master’s Thesis in the International Master’s program Sound and Vibration
Team Lutheries – Acoustique – Musique (LAM) 11 Rue de Lourmel – 75015 Paris, France
Department of Civil and Environmental Engineering Division of Applied Acoustics Vibroacoustics Group
CHALMERS UNIVERSITY OF TECHNOLOGY Göteborg,