Ray Tony, Kaljun Jasmin, Straže Aleš
Faculty of Mechanical Engineering, University of Maribor, Smetanova 17, 2000 Maribor, Slovenia.
Biotechnical Faculty, University of Ljubljana, Jamnikarjeva 101, 1000 Ljubljana, Slovenia.
Materials (Basel). 2021 Sep 14;14(18):5281. doi: 10.3390/ma14185281.
Research show that the vibrations of the strings and the radiated sound of the solid body electric guitar depend on the vibrational behavior of its structure in addition to the extended electronic chain. In this regard, most studies focused on the vibro-mechanical properties of the neck of the electric guitar and neglected the coupling of the vibrating strings with the neck and the solid body of the instrument. Therefore, the aim of the study was to understand how the material properties of the solid body could affect the stiffness and vibration damping of the whole instrument when comparing ash ( L.) and walnut ( L.) wood. In the electric guitar with identical components, higher modal frequencies were confirmed in the structure of the instrument when the solid body was made of the stiffer ash wood. The use of ash wood for the solid body of the instrument due to coupling effect resulted in a beneficial reduction in the vibration damping of the neck of the guitar. The positive effect of the low damping of the solid body of the electric guitar made of ash wood was also confirmed in the vibration of the open strings. In the specific case of free-free vibration mode, the decay time was longer for higher harmonics of the E, A and D strings.
研究表明，除了扩展的电子链外，实心电吉他的琴弦振动和辐射声音还取决于其结构的振动行为。在这方面，大多数研究集中在电吉他琴颈的振动机械特性上，而忽略了振动琴弦与琴颈及乐器实心体的耦合。因此，该研究的目的是在比较白蜡木（L.）和胡桃木（L.）时，了解实心体的材料特性如何影响整个乐器的刚度和振动阻尼。在具有相同部件的电吉他中，当实心体由更硬的白蜡木制成时，乐器结构中的模态频率更高。由于耦合效应，在乐器实心体中使用白蜡木导致吉他琴颈的振动阻尼得到有益降低。由白蜡木制成的电吉他实心体低阻尼的积极效果在空弦振动中也得到了证实。在自由 - 自由振动模式的特定情况下，E、A和D弦的高次谐波的衰减时间更长。
