Coupled bending-torsional vibrations of rotating cantilever blades—method of polynomial frequency equation

作者: J.S. Rao , S. Banerjee

DOI: 10.1016/0094-114X(77)90003-9

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摘要: Abstract In this paper a polynomial frequency equation method is developed to determine the natural frequencies of cantilever blade with an asymmetric cross-section mounted on rotating disc. Considering as discrete system, generalised expressions for slope, linear and angular deflections are derived, using Myklestad necessary modifications. With these expressions, system set up which can be solved system. This procedure avoids cumbersome time consuming methods normally employed, e.g. formation solution matrix eigenvalue problems, or trial error interpolation procedures Holzer Myklestad. The results obtained by compared available theoretical experimental values.

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