Hi there;
I am trying to simulate a soil mixture with high damping but the Rayleigh damping formulation results in frequency dependent damping, in contrast to experiments that show that the damping of soil is mostly frequency independent. So I want to change the rayleigh command. Where do I find source code of this command? or Where I find C matrix (damping matrix), exactly?
Thanks.
Rayleigh damping
Moderator: Moderators
the rayleigh command when invoked causes setRayleighDamping to be invoked on the Domain.
OpenSees/SRC/domain/domain/single/Domain.cpp
this in turn causes the Elements and Nodes to be invoked with setRaylegh()
you don't want to change this command .. you want to provide damping using some other method, e.g. a new element that provides the terms in the C matrix that you want.
OpenSees/SRC/domain/domain/single/Domain.cpp
this in turn causes the Elements and Nodes to be invoked with setRaylegh()
you don't want to change this command .. you want to provide damping using some other method, e.g. a new element that provides the terms in the C matrix that you want.