Free vibration frequency of a double-clamped beam
len length of the beam
wid width of the
beam in µm
thickness of beam in µm
den density of the material
of the beam in kg/m3
ymod Young's modulus in GPa
denoting the selected result.
Use 2 for first modal frequency
This design interface can be used to determine the fundamental
frequency of vibration of a double-clamped beam. The two ends
of the beam are rigidly fixed. For this analytical solution, width
of the beam has only minimal influence on the fundamental frequency
The plot shows the amplitude frequency
relationship for the given beam. It shows the first resonance
frequency as a sharp rise in amplitude. Using the cross hair tool,
the resonant frequency and the corresponding relative amplitude can
-The default material is Silicon with a Young's modulus of 180GPa
and Poisson's ratio of 0.3.
-The beam has uniform cross section.
-The weight of the beam is uniformly distributed.
-The property of the material remain constant across the beam
-Damping is not considered.
Mechanics > Vibration > Free vibration > Clamped beam >