HEy guys ,
Let's I have an SDOF system , and I would like to know thw dynamic stiffness of this system , is the FRF enough ? , how to compute dynamic stiffness from FRF ? Thank you
caemagic
Hello ,
I would like to know whether it is safe to assume that static and dynamic stiffness in metals can be assumed to be the same. Metals , in general have very little damping ,hence both static and dynamic stiffness should not differ am I correct ?
Thank you
caemagic
Hey guys
I would like to ask you on how to model brazed joints in SOL 103 , what would be the best practice for modeling such a joint , is it possible to model them via RBE2/RBE3
Thank you
caemagic
Hey guys ,
I would like to know how to deal with subsystems? , I am interested in the vibration of a structure , let's say I am interested in the vibrations of a car engine mounted on rubber bushing, how do I constrain the engine in such a way that the behavior of the engine as a subsystem...
Hey guys , I would like to know the difference between these two elements , as a guideline it's preferable to use CQUAD8 , do we always use CQUAD8 when ever we mesh and analyse ? thank you
caemagic
Hey guys ,
I would like to know how to deal with subsystems? , I am interested in the vibration of a structure , let's say I am interested in the vibrations of a car engine mounted on rubber bushing, how do I constrain the engine in such a way that the behavior of the engine as a subsystem...
Hey guys ,
I would like to know where exactly shall I place the point of excitations? I have placed the excitation at a point that's level to the base of the spring. And that point is connected via RBE2 elements , is this a correct practice , please do shed some light on this
Thank you so...
Hey guys ,
suppose we would want to model base excitations on NX Nastran response simulation 8.0/8.5 for a single degree of freedom, here how I try to do it
-create two points
-connect the two points using CBUSH
-mesh one point with a 0D point mass
-select (uniaxial option) for 8.0/CBUSH1D...
