Design and Analysis of Rigid Unprotected Flange Coupling Finding Optimized Design

Rigid flange couplings are designed for heavy loads. The present study of this paper is to reduce the stress that acting on the bolts by making it uniform strengthen also finding out the safe design vs load. Stresses on the flange coupling joints is predicted using the static analysis. The Finite element simulation is performed on original as well as on different modified designs to optimize the flange coupling joint. The dynamic analysis performed is similar to the torsional analysis of the flange coupling joint and similar boundary condition is applied to the flange coupling. The stress in the threaded part of the bolt will be higher than that in the shank. Hence a greater portion of the will be absorbed at the region of the threaded part which may fracture the threaded portion because of its small length. An axial hole is drilled at the centre of the bolt through the head as far as thread portion such that the stress in the bolt is uniformly distributed along the length of the bolt.