Thoughts About the Design of the Classical Guitar

Contents by Juan F. Fernandez-M. (about me)

Please write me if you have any comments to improve these pages.

Note: as of 15/09/2015, I am currently redoing the site's pages in order to standardize results and allow for a more rapid access to the information. I hope I can finish soon!

These pages explore the rich features of the classical guitar design by analyzing the essential principles implemented on the soundboards of famous guitar builders using finite Element analysis (FEA).

I base my discussion on the detailed plans available from the Guild of American Luthiers, Roy Courtnal and Allied Lutherie.

My goal here is not to simulate specifically the soundboard of a particular guitar, but to rather understand the effects of different struting designs on a standard soundboard, something that is impossible to do in the real world.

I. The Basics

II. Vibration modes of main designs

  1. Antonio de Torres (Tarrega FE 114)

  2. Antonio de Torres "La Leona"

  3. Manuel Ramirez 1912/Santos Hernandez

  4. Hermann Hauser I 1937 / Segovia

  5. Santos Hernandez simple 7 fan design

  6. Santos Hernandez (almost) parallel bracing design

  7. Santos Hernandez slanted harmonic bar

  8. Ignacio Fleta

  9. Marcelo Barbero

  10. José Ramirez III

  11. José Romanillos

  12. Masaru Kohno

    III. Summary of simulations
  • Summary of results

  • Concluding remarks

Last updated: September 2015