Recent content by rk81

  1. R

    Frequency & Eigenvalue from dynamic eqn

    thanks, i think i found the answer.. i need to make the matrix to diagonal form, and then the soln is simple.
  2. R

    Frequency & Eigenvalue from dynamic eqn

    Hi, i am trying to find the natural period of a vertical cantilever beam which is fixed at bottom and free at other end., i worked out the global M & K matrices and i have the eqn in the form [M]-w^2[K] = 0, the M & K are not diagonal matrices, but square symetric matrices of rank 6. i...
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