Study Of The Effect Of Various Factors On The Stress Generation Of Large Horizontal Pressure Vessel By Taguchi Approach.

Abstract

Large Horizontal pressure vessels are required to be supported with more than two saddles.teh vessel and saddle are subject to combined state of stresses due to longitudinal, circumferential stress due to pressure and axial, compressive and bending stresses due to loading conditions. The precise prediction of the stresses is very important due to complicated state of stress. This research article looks for the study of effect of various design factors on the stress distributions in vessel and saddle parts of large horizontal pressure vessel supported by more than two supports. The numerical method has been applied by performing simulation in ANSYS 15.0.Design of experiment method has been applied by Taguchi method.L9 orthogonal array has been selected with 4 factors and 3 levels. Number of saddle, wrap angle, distance from head and wear plate extension has been shortlisted for the design of experiementaion.The regression analysis, Main effect plot and SN Ration plots have been obtained. The prediction model has been derived by regression analysis and can be used for suggest of stresses and influence of various design factors on the stress.