VIBRATION ANALYSIS OF ROTATING PRE-TWISTED CANTILEVER PLATE BY USING THE FINITE ELEMENT METHOD
محتوى المقالة الرئيسي
الملخص
In this paper the finite element method has been used to determine the fundamental natural
frequencies of a pre-twisted plate mounted on the periphery of a rotating disc. Three dimensional,
finite element programs was built using three noded triangular shell element as a discretization
element for cantilever plate, this element has six degrees of freedom at each node. All formulations
and computations are coded in (FORTRAN-77). The investigation covers the effect of speed of
rotation, disc radius, aspect ratio, pre-twist angle and skew angle on the vibration characteristics of
rotating cantilever plate. For this analysis, the initial stress effect (geometric stiffness) and other
rotational effects except the corioles acceleration effect have been included. The eigenvalues have
been extracted by using simultaneous iteration technique. Results shown that the natural
frequencies increase when; angular speed and disc radius are increases
تفاصيل المقالة
كيفية الاقتباس
تواريخ المنشور
المراجع
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