User manual

Appendix F: Mechanical Dynamic Loading
Determining Natural Frequencies
8580/8590 Vehicle-Mount Computer User Manual F-9
• Calculating the known static spring deflection using the following quantity equation
(minimal measurement work, very good approximation)
Where: f
e
= natural frequency in Hz
x
st
= static spring deflection in mm
= deflection of the center of gravity in the direction of the
gravitational force (for example using a mechanical timer)
St x
f
e
8,15

Note: Further technical information can be found in the product documents provided
by the elastomer spring manufacturers.