Experimental verification of analytical dependences for calculating rigidity of the elastic couplings with packages of cylindrical spring sleeves

Abstract

Torsional rigidity is the main characteristic of flexible couplings. Various fairly simple analytical dependencies are used for calculating torsional rigidity of couplings with the spring sleeve packages based on a number of assumptions. In order to verify the analytical dependences applicability in practice, an experimental study of rigidity was carried out on a model of coupling with the split steel sleeves. Design of the coupling model provided for installation of the latter in the torsion testing machine grips with the ability to register the torsion diagram in the “torque — mutual angle of the coupling halves rotation” coordinates. Experimental results were compared with the calculated analytical dependencies and showed satisfactory agreement and suitability of the proposed analytical dependencies for practical purposes.