Rayleigh damping#
Before MORe version 4.2, this is the default damping system.
A machine tool can be described using equation [1], where \(M\) is the mass matrix, \(D\) is the damping matrix and \(K\) is the stiffness matrix.
\[M \ddot{x} + D \dot{x} + K x = 0 \quad [1]\]
Using the rayleigh damping model, the system is proportionally damped with the damping matrix \(D = \alpha \cdot M + \beta \cdot K\).
\(\alpha\)#
Mass proportional damping coefficient, multiplies mass matrix \(M\). Responsible for the damping at low frequencies.
\(\beta\)#
Stiffness proportional damping coefficient, multipies stiffness matrix \(K\). Responsible for the damping at high frequencies.
Reset damping model#
Set \(\alpha\) and \(\beta\) back to 10.0 and 1e-5, respectively.