Dynamic Behavior

  • Richard Mark French

The sound of a guitar is intimately related to the dynamic response of its structure and its interaction with the air both in and around it. The problem can be simplified, at least initially, by considering the dynamics of the strings and the body separately. This chapter introduces some basic ideas in structural dynamics, describes the dynamic behavior of strings and bodies and then briefly summarizes the response of the complete instrument.

Structural Dynamics

Understanding the dynamic response of the structure is at the core of understanding how the instrument produces sound. One of the most fundamental concepts is that of natural frequencies and mode shapes. Any elastic structure has frequencies at which it ‘likes’ to vibrate. More precisely, these are frequencies at which a low level of input force results in a large response amplitude and are variously called natural frequencies, resonant frequencies or eigenvalues [61]. The last term is because resonant frequencies are solutions...


Resonant Frequency Mode Shape Frequency Response Function String Tension Node Line 
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Copyright information

© Springer Science+Business Media, LLC 2008

Authors and Affiliations

  • Richard Mark French
    • 1
  1. 1.Purdue UniversityWest LafayetteUSA

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