THEORETICAL DESIGN AND STRESS ANALYSIS FOR FLANGE COUPLING

Abstract

Flange couplings are used into pressurizing piping systems that require the connection of tubing ends or two pipes. Flange couplings are characterized by strong connecting methods. This paper aims to design and analyze the stresses of a gray cast iron protected flange coupling, that connects a motor to a pump. The flange will transfer 15KW at 900rpm to momentum (215KN.m) on the right side with a service factor of 1.35. The flange design was based on the theoretical structure analysis and was modeled into a three-dimensional model. Results have shown that the shaft and key were the most components affected by the applied torque. The applied torque had a relatively insignificant effect on the resulting parameters of the flange, and the only significant effect on the bolt was at the contact points with the flange. The theoretical results were compared to the allowable stresses of the chosen material. The results of this comparison have shown that the flange coupling’s material can endure the applied torque without failure or deformation and within an acceptable safety margin.