Beam length and dynamic stiffness Original Research Article

The dynamic stiffness matrix is probably the simplest and the most convenient way to deal with the dynamic behavior of a distributed-parameter beam or beam system described in the continuous-coordinate system. The numerical computation of the stiffness coefficients and the determinant of the dynamic stiffness matrix has difficulty at some frequencies. This computational difficulty could be avoided if each beam component of a beam system is divided into the appropriate number of beam elements. Some simple beam examples are included in this paper for demonstration and discussion.