Approximate Calculation Methocls for Natural Frequency of an Elliptic Column Oscillating on a Horizontal plane
Xia Ji (Sichuan Institute of Building Materials) Liao Boyu ( Kunming Polytechnic Institute)
This paper gives two Kinds of approximate methods used to calculate a homogeneous elliptic column oscillating slightly on a horizontal ptane without slide; and obtains two formulas for calculation of the natural frequency. The results of computation are well consistent with the data of experiments.The second method,introducing a idea of curvature circle, can be used to calculate natural frequency of any a homogeneous column with a complicated section oscillting slightly on a plane.
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