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
Optimization of Convective Heat Transfer Model of Cold Storage with Cylindrical Pin Finned Evaporator Using Taguchi Analysis
This work contains of design of experiments to optimize the various control factors of a cold storage evaporator space inside the cold room, in other words the heat absorption by evaporator will be maximize to minimize t...
Design and Development of Non-Conventional Air Pumping Model
The main purpose of our project is to provide compressed air without any consumption of any other resources like electricity. We are trying to introduce basic design with parameters which will one kind of free and renewa...
Storage Efficiency Optimization of an Ultracapacitor Charged By a Photovoltaic Cell Using Simulated Annealing
Ultracapacitors are very power dense capacitors. Charge density of Ultracapacitors depends on the value of the capacitance and its voltage. Generally an Ultracapacitor with higher capacitance would support higher energy...
Fusion Enhanced Image Stitching Using Dct and Dchwt
Image fusion is the process by which two or more images are combined into a single image retaining the important features from each of the original images. In this paper, output of SURF and SIFT are used as input images...
Research On The Hydrodynamics Of Seagoing Rivers Affected By Marine Monsoon: A Case Study In Duliujian River
In this study, the surface water flow velocities were seasonally measured in the Duliujian River and the hydrodynamical characteristics of seagoing river affected by marine monsoon were also analyzed from the perspective...