Journal of Aerospace Engineering & Technology
Volume 8, Issue 2 (2018)
Published
Table of contents
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Effect of Hot Corrosion on SA-213 and SA-516 Boiler Steels in Na2SO4-50%NaCl Molten Salts Environment at 800°C
Abstract: The aggressive environment corrosion at increasing temperature is the major problem in the components of boiler and gas turbine, etc. This degradation occurs by application of large variety of fuels like coal and oil, etc., at higher temperature. Boiler steel materials were found to be good corrosion resistance, but they lacked to corrosion at higher temperature in aggressive environment. The detonation gun Cr3C2-25NiCr sprayed coating provides an appropriate solution to …
Published in Journal of Aerospace Engineering & Technology · Vol. 8, Issue 2, 2018 · pp. 1–6 Read article
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Mechanical Properties of Glass Fiber Composites based on Manufacturing Techniques
Abstract: As the composite-intensive aircrafts are the emerging trends of the aviation industry, the demand for composites with better performance and mechanical properties is going to get a boom. In the present study, an exertion is made to comprehend the composite material, glass fiber reinforced polymer (GFRP) and the changes on the mechanical properties of the same when different types (continuous fibers, chopped strand mats) and different orientations (unidirectional, bidirectional, randomly …
Published in Journal of Aerospace Engineering & Technology · Vol. 8, Issue 2, 2018 · pp. 19–26 Read article
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Analysis of Crashworthiness of Typical Helicopter and Design Optimization
Abstract: It is very important to make our helicopter crashworthy because it is 400 times more fatal than aircraft accidents and hence serious concern is required towards the crashworthiness of the helicopters. Our basic aim is to incorporate a material or a composite feasible enough to sustain tremendous amount of energy dissipated during the impact or crash or hard landing. We considered two very important components of the rotorcraft for our …
Published in Journal of Aerospace Engineering & Technology · Vol. 8, Issue 2, 2018 · pp. 27–39 Read article
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A Review Paper: Design of Fixed Wing Unmanned Aerial Vehicle Based on Magnificent Frigatebird, Fregata Magnificens
Abstract: The magnificent Frigatebird has been investigated extensively in the past because of its extraordinary flying capabilities. Most of its life is spent in the air. Frigate can stay aloft continuously for months. All of these astounding facts about Frigate bird point towards its aerodynamic anatomy and preferred flight mode, Soaring. In this review paper, we summarize the research work done on Frigatebird, its stupendous aerodynamics and flight capabilities. We end …
Published in Journal of Aerospace Engineering & Technology · Vol. 8, Issue 2, 2018 · pp. 40–44 Read article
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Dissimilar Friction Stir Welding of Precipitation Hardening Aluminium Alloys AA2024-and AA7039
Abstract: In this research, dissimilar friction stir welding of precipitation hardening aluminium alloys AA2024 and AA7039 was performed with aim to study the evolution of microstructure in dissimilar joints. AA7039 plate was kept on advancing side, whereas AA2024 plate was placed on retreating side during friction stir welding. Weld joints exhibited features typical to dissimilar friction stir welding and exhibited solid state flow pattern beside different zones. Microstructure analysis confirmed mixing …
Published in Journal of Aerospace Engineering & Technology · Vol. 8, Issue 2, 2018 · pp. 45–50 Read article
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A Review: Drag Reduction in Aerospace Vehicles Using Aerospikes
Abstract: Vehicles flying in supersonic and hypersonic region develop a bow shock in front of the blunt body leading to an increase in the pressure and temperature. This increased pressure further leads to higher drag and heat transfer depending on the inflow Mach no. A spike at the tip alters the flow field in the vicinity of main body, thereby reducing drag. Our study focuses on how the flow over the …
Published in Journal of Aerospace Engineering & Technology · Vol. 8, Issue 2, 2018 · pp. 51–57 Read article
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Experimental Investigations on the Influence of Fuel Pressure on Single Cylinder C.I. Engine Fuelled with Different Polanga Biodiesel Blends
Abstract: The fuel properties put great impact on engine performance. Therefore, the adaptation of an alternative fuel to the existing engine may require some of the design modifications in order to have superior or almost identical performance. The present work examines the prospects of calophylluminophyllum based biodiesel blends at various fuel injection pressures. Polanga based biodiesel provides better exhaust emission characteristics and thermal performance closest to that of diesel oil. Higher …
Published in Journal of Aerospace Engineering & Technology · Vol. 8, Issue 2, 2018 · pp. 58–66 Read article
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Framework for Risk Analysis using Fuzzy Methodology and MADM Technique
Abstract: This paper deals with a framework for the evaluation of risk in any of the complex processes like manufacturing, aerospace, nuclear industry, banking, administration etc. The methodology incorporates conventional FMEA, fuzzy FMEA, Dempster-Shafer theory and grey relation analysis. With its application, vagueness, uncertainty, ambiguity and repeatability in the results will be eliminated out. This will optimize the result which will make the system more secure and functional; thus improving the …
Published in Journal of Aerospace Engineering & Technology · Vol. 8, Issue 2, 2018 · pp. 67–72 Read article
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Analytical Solution to Single Degree of Freedom Bi-Linear Spring Mass Systems Transient Vibration
Abstract: Conventional approach to solution of linear systems under transient vibration has been through Convolution integral or Duhamel integral method which employs the method of superposition of linear solutions to obtain the total solution. Principle of superposition is not possible for non-linear systems and hence transient vibration solution cannot be obtained through classical methods. Nevertheless, the solution to transient vibration for each domain can be obtained as a sum of homogeneous …
Published in Journal of Aerospace Engineering & Technology · Vol. 8, Issue 2, 2018 · pp. 7–18 Read article