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1 Technical Sciences / University of Warmia and Mazury in Olsztyn

1 2013

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Limitation of Cauchy function method in analysis for double estimators of free transversal vibration of cantilever tapered shafts

Jaroszewicz J., Dragun Ł

Technical Sciences / University of Warmia and Mazury in Olsztyn

2013

nr 16(2)

131--146

In this paper the Bernstein-Kieropian simplest Dunkerly estimators of natural frequencies of cantilever shafts with power variable flexural rigidity and attached concentrated mass were analyzed in a theoretical approach. The approximate solution of boundary value problem of transversal vibrations by means of Cauchy function and characteristic series method has gave getting functional dependence between natural frequency and variable parameters of shafts. Particular attention has been given to a singularity arising from the uncertainty of estimates of Bernstein-Kieropian. Limitation of Cauchy function method in analysis double estimators of natural frequencies of transversal vibration of cantilever tapered shafts exude to exact theoretical selection using by Bessel’s function and experimental result received by Panuszka R., Uhl T.