Probabilistic Assessment of Thermal Gradient In Bolted Flange of A Gas Turbine Engine
Journal Title: International Journal of engineering Research and Applications - Year 2018, Vol 8, Issue 2
Abstract
Recent developments of higher temperature, pressure and speed in gas turbine technology demands closure bolted flanges. Thermal analysis of bolted flange joint is also critical along with structural analysis as they experience huge thermal gradients. Stresses induced due to thermal gradients also influence the Low cycle fatigue (LCF) life of the flange joint especially during transient conditions of the flight cycle. Several parameters like flange dimensions, gap between the flanges and thermal boundary conditions on the inner and outer sides of joint influence flange joint thermal gradient. The present study investigates the variation of flange gradient the variation flange height, flange thickness and gap. Both parametric and probabilistic studies have been carried out to identify most significant parameter which influences the flange gradient. In probabilistic approach the variation in the input parameters can be captured using probabilistic sampling like normal distribution, which is closer to the reality. The results presented in this paper will be helpful to the designer in designing better bolted flange joints with improved LCF life.
Authors and Affiliations
Krishna Nelanti, Harikrishnan L. , Nagaraju Kanike
Keywords
Related Articles
- EP ID EP393720
- DOI 10.9790/9622-0802023136.
- Views 102
- Downloads 0
Screening of Aspergillus oryzae M/4 for extra cellular alphaamylase production
Aspergillus oryzae M was cultivated for 42 days in submerged conditions of growth using new method of fungal cultivation. This method based on immobilizing enzymes producers on solid career in submerged conditions of gro...
Noise pollution at Ghanaian Social Gatherings: the case of the Kumasi Metropolis
Kumasi the capital of the Ashanti Region in Ghana has been observed to have high noise pollution. It has been observed that social gatherings, especially church services and funeral gatherings, are the main contributors...
Comparative Study of Software Automation Testing Tools: OpenScript and Selenium
Software Testing ensures delivery of good quality software to the customer. With the increase of product functionality, testing becomes challenging as it is time-consuming to perform manually, cost also increases as test...
Preparation and characterization of Al doped nano crystalline Ni ferrites
The Ni-Al nano ferrites having compositional formula NiAlxFe2-xO4 (where x= 0.2, 0.4, 0.6, and 0.8) were synthesized by citrate gel auto combustion method. The XRD studies reflected that the fabricated powders were singl...
Synthesis and Electrical Characterization of Cu2+ doped (SnO2)1- x(ZnO)x nanocomposites.
(SnO2)1-x(ZnO)x (with x values 0.0,0.2,0.4,0.5,0.6,0.8,1.0) nanocomposites doped with 1 mole percent Cu2+ was synthesized using simple microwave assisted solvothermal method with ethylene glycol as solvent. The asprepare...