Dear all, I have two questions boring me.
1. In finite element dynamic analysis. The structrural equivalent
stiffness matrix, Ke=K+2/h*C+4/h^2*M, can become sigularity?? I kown
that in static analysis the structrural stiffness matrix can be
sigularity with Det(K) = 0.
2.In finite element dynamic analysis (note: not in static). If a beam
is no any restraints, I can directly analyse it under a force using
the Newmark method?? I try this, I think it can be work, am I wrong??
Many thanks.
- posted 14 years ago