Beam length and dynamic stiffness

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...

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Bibliographic Details
Published in:Computer methods in applied mechanics and engineering 1996-01, Vol.129 (3), p.311-318
Main Authors: Chen, Yung-Hsiang, Sheu, Jau-Tsann
Format: Article
Language:English
Subjects:
Exact sciences and technology
Fundamental areas of phenomenology (including applications)
Physics
Solid mechanics
Structural and continuum mechanics
Vibration, mechanical wave, dynamic stability (aeroelasticity, vibration control...)
Vibrations and mechanical waves
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Summary: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.
ISSN:0045-7825
1879-2138
DOI:10.1016/0045-7825(95)00912-4