Author(s)

I.J. Richardson, T.H. Hyde, A.A. Becker and J.W. Taylor

Abstract

Curvic couplings are to be found in many industrial gas turbines and are used extensively within the aero-engine industry. A Curvic coupling is a rigid, light and effective means of transmitting torque between parallel in-line shafts or turbine/compressor discs. This is achieved by the precision manufacture of mating teeth on the adjacent ends of the components and then clamping the assembly together with bolts. The three-dimensional modelling of Curvic couplings for use with a finite element contact package is time consuming and expensive. When modelling Curvic couplings even in 3D, assumptions have to be made to simplify the complex geometry. The presence of friction between the contacting su

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