期刊名称：International Journal of Innovative Research in Science, Engineering and Technology
印刷版ISSN：2347-6710
电子版ISSN：2319-8753
出版年度：2015
期号：MULTICON
页码：624
出版社：S&S Publications
摘要：It is quite common that every component so designed will be affecting from various deformations andirregularities which may lead to generation of various stresses. So, it is very much essential to analyze the componentfor various stresses that are to be developed. Here, the analysis of various stresses in axial flow turbine is being done atand stress concentration is determined in the vicinity of blades of Turbine. The Material INCONEL 718 Material isUsed .This alloy is made of Niobium, Chromium & Nickel.The main objective is to find out the Displacement, Equivalent and Fatigue stresses in the blades whensubjected to structural and thermal Loads.Structural system of axial flow turbine can be easily analyzed using finite element analysis techniques. From thesetechniques the FEA is done in order to find out the stresses in the existing turbine for the given loads and boundaryconditions using Finite Element Analysis Software ANSYS Workbench. This entire work is done in various steps likefirstly modeling the turbine in SOLIDWORKS software and importing the geometry into the ANSYS software forprocess of analysis. Here five types of analysis are being done namely, static structural analysis, transient thermalanalysis, structural to thermal coupled analysis, fatigue analysis and modal analysis.The conclusions thus extracted from these analyses are the numerical values of stress concentrations, displacement,thermal stress, various modes of failure for different natural frequencies, and its life in cycles and safety factor. And itis found out that maximum stress is 194.61MPa, and in the thermal to structural coupled analysis the maximum stress is217.65MPa. The other stresses outside the localized stress region are well within the yield strength value 1035Mpa, thelife of the turbine chosen is 1x106 cycles. Hence the Axial Flow Turbine is safe.
