Squeeze-Film Gas Damping of a Vibrating Disc

Application ID: 14105

This benchmark model computes the total force acting on a vibrating disc in the frequency and time domains and compares both results with expressions derived analytically. When the vibration amplitude is small enough that the system is linear the frequency and time domain results agree well with theory. Larger amplitude vibrations, which result in a non-linear response that cannot be modeled in the frequency domain, are explored in the time domain, and compared against analytic solutions.

This model example illustrates applications of this type that would nominally be built using the following products: