RESEARCHES CONCERNING THE ACOUSTIC PROPERTIES OF TONE WOOD USED ON MUSICAL INSTRUMENTS STRUCTURES
B-dul Eroilor, Ioan Curtu · 2007
The paper presents some aspects regarding to the connections of the features of wood and lingocellulose composites used for musical instruments manufacturing and the particulars of shape, structure and quality of instruments. The paper is organized on three main units. The first unit presents the acoustic properties of wood regarding to: sound velocity in wood, specific acoustic impedance, acoustic damping, acoustic insulation, wood resonance. The second part of paper brings into focus the most important species of resonance wood from the point of view of the quality criteria of wood and materials based on wood used for musical instruments construction. The last part of study presents the experimental results obtained by the cyclic stresses applied to the plates of different guitars. It is important to know the acoustic features of tone wood in correlation with the mechanical properties of wood (resistance to the cyclic stresses, the stiffness on the three main directions, density, the moisture content of wood) for the manufacture of qualitative musical instruments suitable for types of music and personal style of artists.