|
|
|
|
This command is used to assign damping to all previously-defined elements and nodes:
rayleigh $alphaM $betaK $betaKinit $betaKcomm
The damping matrix D is specified as a combination of stiffness and mass-proportional damping matrices:
D = $alphaM * M + $betaK * Kcurrent +$betaKinit * Kinit + $betaKcomm * KlastCommit
The mass and stiffness matrices are defined as:
M |
mass matrix used to calculate Rayleigh Damping |
Kcurrent |
stiffness matrix at current state determination used to calculate Rayleigh Damping |
Kinit |
stiffness matrix at initial state determination used to calculate Rayleigh Damping |
KlastCommit |
stiffness matrix at last-committed state determination used to calculate Rayleigh Damping |
|
|
|