Work

Modelling of Shell Trumpet Overtones and Acoustics of Helicoidal Geometries

Year: 2026

Type: article

Abstract: In this work, the propagation of acoustic waves in shell trumpets is explored, and the overtones generated by them are studied. We consider different shell geometries, for which their particular morphology is taken into account. This impacts the fundamental frequencies as well as the overtones. An analytical model based on differential equations is developed to predict these overtones and compared with real recordings of some shell trumpets belonging to several collections in Mexico (experimental results). As a consequence, the notes of archaeological shells that cannot be played due to their physical damage are estimated.

Source: Acoustics

DOI: 10.3390/acoustics8020023

Authors: Marcel-André Ramírez-Trocherie, Pablo Padilla, Francisca Zalaquett, Martín Salinas-Vázquez

Institutions: Instituto de Ingeniería, Universidad Nacional Autónoma de México

Language: English

Topic: Experimental and Theoretical Physics Studies

Subfield: Statistical and Nonlinear Physics

Field: Physics and Astronomy

Domain: Physical Sciences

Open Access status: gold

Estimated APC paid: $1,930

Funders: Consejo Nacional de Ciencia y Tecnología, Universidad Nacional Autónoma de México