Bar Vibrational Modes

The elastic property involved in the vibration of bars is usually stated in terms of Young's modulus.

Clamped bar detailsFree bar details
Index

Percussion instruments

Musical instruments

Reference
Hall
Ch. 9
 
HyperPhysics***** Sound R Nave
Go Back








Clamped Bar Modes

The frequency f1 depends upon the density and elasticity of the material from which the bars are made. The amplitudes for the f2 and f3 modes would actually be much smaller than the fundamental. These mode frequencies appear with a tuning fork since it can be considered to be two clamped bars.

Free bar modesComparison
Index

Percussion instruments

Musical instruments

Reference
Hutchins
 
HyperPhysics***** Sound R Nave
Go Back





Free Bar Modes

The frequency f1 depends upon the density and elasticity of the material from which the bars are made. The amplitudes for the f2 and f3 modes would actually be much smaller than the fundamental.

Clamped bar modesComparisonExample: Glockenspiel
Index

Percussion instruments

Musical instruments
 
HyperPhysics***** Sound R Nave
Go Back