Summary
The paper proposes a method in finite element analysis for estimating natural frequencies of a disk tensioned by rolling, without the use of eigenvalue analysis. The natural frequencies of a disk vary when the localized plastic deformation caused by roll-tensioning induces residual stresses. Tensioning is used for improving the dynamic stability of circular saws; the optimal condition of rolling can be predicted from natural frequency characteristics. In the proposed method, the natural frequencies after rolling are easily estimated from the mode shapes of the disk before rolling and the stress distribution after rolling. The method is based on ideas similar to thermal stress and sensitivity analysis rather than on eigenvalue analysis. The effectiveness of the method is shown by comparing the natural frequency characteristics obtained by this method with those by eigenvalue analysis.
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Received 18 June 1998; accepted for publication 8 April 1999
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Kuratani, F., Yano, S. Vibration analysis of a circular disk tensioned by rolling using finite element method. Archive of Applied Mechanics 70, 279–288 (2000). https://doi.org/10.1007/s004199900036
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DOI: https://doi.org/10.1007/s004199900036