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MATHEMATICAL MODEL FOR CALCULATING VIBRATION INHERENT FREQUENCIES AT BENDING FROM TWOSHAFTS TRANSMISSION

10.15660/AUOFMTE.2017-1.3281

Ion BULAC, Jan-Cristian GRIGORE

ionbulac57@yahoo.com, jan_grigore@yahoo.com

The average fibre of a elastic shaft as a horizontally resting on two simple supports, resiliently deforms under the action of own weight static, thus generating a mass eccentric to the axis of rotation of its own. The eccentric mass during the even rotation produces a centrifugal force, which increases the elastic deformation leading to the occurrence of bending vibration. The same happens in the case of shafts transmissions that can be treated with the elastic linkage systems of various sections, length and specific weights, elastic suspension media. This paper presents the mathematical model for calculating its own frequencies and vibration modes at bending for two-shafts transmission without technological deviations.

critical speeds, pulsation own, resonance, twoshafts transmission

ISSN 1583-0691, CNCSIS "Clasa B+"