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<p><i>Picea abies</i> is the most commonly used wood species for making soundboards for high-quality stringed musical instruments. This work performs for the first time an analysis of the propagation velocity of ultrasonic waves by coupling experimental measurements with numerical flow simulations on the 3D real microstructure of <i>Picea abies</i> wood. X-ray microtomography allows to determine a 3D anatomical characteristics as well as to simulate fluid through the anatomical structure of <i>Picea abies</i> wood in its three main directions: longitudinal, tangential, and radial. Results showed that ultrasonic wave's propagation is anisotropic in the three main directions because the anatomical characteristics of woody tissue strongly influences their path. Longitudinal direction had the highest velocity values, then tangential direction and finally the lowest propagation was in the Radial one. These differences agreed with the flow numerical simulations, generated from the data provided by computed tomography.</p> Graphical abstract <p></p>

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Investigating the relationship between acoustic sound and wood anatomy by coupling computed tomography and ultrasonic wave propagation

  • 期刊论文

  • 发表日期：

    2025年3月7日

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  • Raúl Espinoza-Herrera,
  • Luis Olmos,
  • Erica Arreola-García,
  • Mayra Irery Carrillo-Gómez,
  • Ivonne Edith Murillo-Sánchez,
  • Dante Arteaga

摘要

Picea abies is the most commonly used wood species for making soundboards for high-quality stringed musical instruments. This work performs for the first time an analysis of the propagation velocity of ultrasonic waves by coupling experimental measurements with numerical flow simulations on the 3D real microstructure of Picea abies wood. X-ray microtomography allows to determine a 3D anatomical characteristics as well as to simulate fluid through the anatomical structure of Picea abies wood in its three main directions: longitudinal, tangential, and radial. Results showed that ultrasonic wave's propagation is anisotropic in the three main directions because the anatomical characteristics of woody tissue strongly influences their path. Longitudinal direction had the highest velocity values, then tangential direction and finally the lowest propagation was in the Radial one. These differences agreed with the flow numerical simulations, generated from the data provided by computed tomography.

Graphical abstract