Analysis of Dynamic Characteristics of Membrane Disc Couplings with Different Spans
With the increase of the span of the coupling,the study of its dynamic characteristics by using the concen-trated mass model will lead to large model errors.In order to accurately study the influence of the span on the dynamic char-acteristics of the membrane disk coupling,a continuous dynamic model of the membrane disk coupling was established.The natural frequencies of the first three orders were obtained by inverse solution method.The mode superposition method was used to solve the axial and transverse vibration responses of the membrane disc coupling,and the influence of unbalanced load phase difference and intermediate shaft span on its dynamic characteristics was analyzed,which was verified by com-parison with the finite element method and literature.The results show that the natural frequency of each order of the cou-pling decreases with the increase of the span of the intermediate shaft,and the overall vibration response amplitude of the coupling increases at a specific speed.When the phase difference of unbalanced load of two flanges gradually increases,the vibration response of the coupling is dominated by the second mode.With the increase of the phase difference,the vibration response amplitude gradually changes to the third mode.At the same time,the overall vibration amplitude decreases signifi-cantly,and the maximum amplitude is transferred from mid-span to both sides.The research has certain theoretical and engi-neering significance for the design and use of couplings with different spans.
vibration and wavedynamicmembrane disc couplingmodeling of continuumspanphase difference
万方数据
维普
