VIBRATION ANALYSIS OF HORIZONTALLY CURVED BEAMS WITH WARPING USING DQM

The differential quadrature method (DQM) is used to compute the eigenvalues of small-amplitude free vibration for horizontally curved beams including a warping contribution. Natural frequencies are calculated for single-span, curved, wide-flange uniform beams having a range of nondimensional parameters representing variations is warping stiffness, torsional stiffness, radius of curvature, included angle of the curve, polar mass moment of inertia, and various end conditions. The results are compared to existing exact and numerical solutions by other methods for cases in which they are available. Even given a limited number of grid points, the DQM provides accurate results. In addition, results are given for a cantilever that has one clamped end and one free end; no known results existed for this particular case. Finally, parametric results are shared in dimensionless form.

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  • English

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  • Accession Number: 00726098
  • Record Type: Publication
  • Files: TRIS
  • Created Date: Sep 23 1996 12:00AM