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115 articles for “air load”
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Design & Development of Helical Compression Spring Using Composite Material
Abstract: The paper embodies the manufacturing of a helical compression spring using composite material. The main motive for the use of composite material spring is its low density and greater stiffness to that of a steel spring. The composite material spring has greater stiffness to weight ratio as compared to the steel spring. We have manufactured carbon fibre and glass fibre spring using filament winding technique as less as possible economical …
Published in Trends in Mechanical Engineering & Technology · Vol. 10, Issue 3, 2020 · pp. 16–23 Read article
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Evaluation of Mechanical Properties of Glass Fibre and Carbon Fibre Reinforced Polymer Composite
Abstract: Abstract Fiber reinforced polymer composite materials are gradually substituting traditional metallic materials because of their high specific strength and better corrosion resistance. However, the cost of the composites is still higher than the traditional materials. Different fibers are used in polymer matrix composites. Glass and carbon fiber are one of the promising reinforcements in polymer matrix composites. In this project, a comparison of mechanical properties and erosion resistance has been …
Published in Journal of Communication Engineering & Systems · Vol. 8, Issue 2, 2018 · pp. 66–74 Read article
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Comparative Critical Analysis of Control Techniques Optimized using ATS Algorithm and Conventional Control Techniques Applied in Shunt Active Power Filter for Total Harmonic Reduction for Power Electronic Converters in High Frequency (400 Hz) Aircraft Sys
Abstract: Three different conventional control strategies used for extracting reference currents for shunt active power filter and optimization of these strategies using Adaptive Tabu Search have been compared and their performances have been evaluated under different balanced and unbalanced loads connected together. The compensation ability of different control strategies will be compared, and suggestion will be given for optimum. Simulation results using MATLAB have been included. Keywords: Active powers filter (APF), …
Published in Journal of Aerospace Engineering & Technology · Vol. 5, Issue 3, 2015 · pp. 44–52 Read article
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A Review Natural Ventilation by Using Solar Chimney
Abstract: A solar chimney is an effective and sustainable ventilation technology designed to enhance airflow within residential and commercial buildings by utilizing natural convection. Operating on principles like a traditional fireplace, a solar chimney harnesses solar energy to generate an upward air movement, creating a pressure difference that drives passive ventilation. The system comprises a vertical shaft, usually constructed with heat-absorbing materials, which captures solar radiation and heats the enclosed air. …
Published in International Journal of Electrical Power and Machine Systems · Vol. 3, Issue 1, 2025 · pp. 22–28 Read article
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MOBILE OPERATED CAR COOLING SYSTEM
Abstract: The field of invention is based on embedded system. This invention is used to correlate the need and comfort zone of the individuals. It makes the use of basic microcontroller as the intellectual part of the whole circuitry. The invention constitutes the use of tools like relays, microcontroller (8081), GSM module. Each component has its own significance. The application of invention is that whenever you need to travel in car, …
Published in Journal of Microcontroller Engineering and Applications · Vol. 1, Issue 2, 2015 · pp. 44–47 Read article
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Life Cycle Cost Optimization of Various Building Envelope Configurations with Thermal Load of an Energy Efficient Building Situated in Composite Climate of India
Abstract: Normal 0 false false false EN-US X-NONE X-NONE Energy efficiency in buildings has become a thrust area due to energy and environment-related issues. In this paper, an energy efficient building situated at Delhi, India has been analyzed for the life cycle cost, which includes the cost of material, air-conditioning machine, and operational cost for various configurations of fire clay bricks and ash blocks building envelope. It was found that use …
Published in Journal of Alternate Energy Sources & Technologies · Vol. 2, Issue 2, 2011 Read article
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Design And Analysis of Carbon Filler Reinforced Composite Small Wind Turbine Blades
Abstract: Although wind turbines have great potential for capturing wind energy, their blades suffer from unstable aerodynamic loads as a result of operating for extended time in challenging conditions. Both structural and aerodynamic performance are negatively impacted by these loads. The effectiveness of the wind turbine and the use of wind energy are significantly impacted by the choice airfoil. Commonly used airfoils include NACA 4412, NACA 23012, and SG6043. The lift …
Published in Journal of Polymer & Composites · Vol. 14, Issue 1, 2026 · pp. 79–89 Read article
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Conceptual Design and Static Model Analysis of Landing Gear
Abstract: An aircraft's landing gear system plays a critical role in effectively managing and dissipating kinetic energy generated during the landing impact, as well as mitigating vibrations induced by the aircraft's passage over irregular runway surfaces. This capability is indispensable for the proper functioning of a well-designed landing system. Among the various types of shock absorber landing gear systems employed in aircraft, the oleo-pneumatic shock absorber stands out as the most …
Published in Journal of Polymer & Composites · Vol. 11, Issue 8, 2023 · pp. 145–163 Read article
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Design and Performance Considerations for Buildings in Coastal and Offshore Environments
Abstract: Buildings near coastal and offshore regions are exposed to extreme wind and seismic forces that govern structural design. In this study, a simplified assessment of wind and earthquake loads acting on a multistorey coastal building is presented. A wind velocity of 400 km/hr. is considered to represent severe cyclonic conditions. Using a unit weight of air of 12 N/m³, the cumulative wind thrust acting over a building height of 40 …
Published in Journal of Offshore Structure and Technology · Vol. 13, Issue 1, 2026 · pp. 13–21 Read article
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Comparison of Control Strategies using Soft Computing Techniques for Shunt Active Power Filters in Aircraft Power Utility of 400 Hz
Abstract: Three different control strategies for extracting reference currents for shunt active power filters optimized using adaptive tabu search and genetic algorithm have been compared and their performance has been evaluated under different load conditions. The compensation ability of different control strategies will be compared and suggestion will be given for optimum strategy to be used under different loads. Simulation results using MATLAB have been included.Keywords: Active power filter (APF), constant …
Published in Journal of Aerospace Engineering & Technology · Vol. 4, Issue 1, 2014 · pp. 9–21 Read article
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Numerical Investigation of Drag and Lift Forces on Turbulent Flow on an Airfoil Shaped Body at Different Angles of Attack
Abstract: Numerical analysis of drag and lift force on an airfoil shaped body at different angles is presented. Fundamentals of aircraft design are provided with detailed estimation of the aerodynamic drag and lift of airfoil is presented. This work presents the configuration optimization of an aerofoil body in air using SST computational fluid dynamics (CFD) modeling and compared with the experimental result. The governing equations are solved with a finite-volume-based numerical …
Published in Journal of Aerospace Engineering & Technology · Vol. 4, Issue 3, 2014 · pp. 9–15 Read article
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Design and Numerical Analysis of Solar Powered Unmanned Aerial Vehicle Using Helium Gas
Abstract: The fundamental of unmanned aerial vehicle has been designed and runs for quite a while. This paper mainly focuses on the reduction of payload and power consumption resulting in increase of efficiency further by the use of helium gas in a solar powered unmanned aerial vehicle. In addition to these, another aim of the aircraft is its use in surveying purpose. A highly powerful live steaming camera is attached to …
Published in Journal of Aerospace Engineering & Technology · Vol. 5, Issue 2, 2015 · pp. 22–26 Read article
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Energy Efficiency in Mobile Air-Conditioning—A Survey
Abstract: Abstract In the past decades, it has been observed a significant increase in the global production of vehicles. This situation is more visible in developing countries, like India, Many of these automobiles are equipped with mobile air-conditioning (MAC) systems in order to improve the comfort and security of the occupants. In contrast to these positive characteristics, the MAC systems are also responsible for greenhouse gas emissions and an increase of …
Published in Journal of Refrigeration, Air conditioning, Heating and ventilation · Vol. 4, Issue 2, 2017 · pp. 1–12 Read article
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Modelling and Analysis of Morphing Wing Structure for Variable Camber
Abstract: This study explores the modelling and analysis of a morphing wing with variable camber configurations to observe its aerodynamic characteristics compared to conventional form. The morphing wing is the concept where the shape of the wing is altered mid-flight based on different phases of flight to improve its aerodynamic characteristics. Morphing wing structure designs such as the corrugated and FISHBAC designs were considered for this analysis. The NACA 2412 airfoil …
Published in Journal of Polymer & Composites · Vol. 13, Issue 4, 2025 · pp. 209–224 Read article
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Temperature Variation and Energy Performance with or without PCM due to Introduction of Heat Loads
Abstract: Food transport and storage at low temperatures has always been an important matter worldwide and is becoming even more important due to dietary needs and population growth. The issue of improving food storage applies to food transportation in refrigerated vans and food storage in domestic refrigerators and freezers. In this paper, heat loads are introduced into a freezer and vegetable zone through short door openings (five door openings lasting 1 …
Published in Journal of Alternate Energy Sources & Technologies · Vol. 3, Issue 2, 2012 Read article
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Autonomous Agentic AI for Adaptive Cure Optimization and Defect Prevention in Thermoset Polymer Composite Manufacturing
Abstract: Thermoset polymer composites occupy a central position in modern structural manufacturing, from aircraft fuselages to wind-turbine blades. Despite progress in resin chemistry and fiber architecture, the “cure process” that transforms compliant preforms into load-bearing structures remains difficult to manage. Manufacturers encounter ‘voids’, “interlaminar delaminations”, and “spring-back distortion” when curing complex or thick-section parts. The cause is not ignorance of the relevant physics, but rather that ‘temperature’, ‘chemistry’, ‘rheology’, and ‘mechanics’ …
Published in Journal of Polymer & Composites · Vol. 14, Issue 2, 2026 · pp. 301–320 Read article
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Study on Stress Analysis of Araldite HY-951 and CY-230 Bell Crank Lever using Photoelasticity and FEM
Abstract: Bell Crank Lever is a bar capable of turning about a fixed point, used as a machine to lift the load by the application of small effort. Bell Crank Lever is used in railway signaling, governors of Hartnell type, the drive for the air pump of condensers, etc. The major stresses induced in the Bell Crank Lever at the fulcrum are bending stress and fulcrum pin is shear stress. The …
Published in Journal of Automobile Engineering and Applications · Vol. 4, Issue 2, 2017 · pp. 10–21 Read article
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Evaluation of Diesel Engine Performance Using Neem Oil Methyl Esters and Biogas as an Alternative Source
Abstract: AbstractThe Neem oil methyl ester (NOME) used as a biofuel is produced by transestetrification process with an aim to reduce the viscosity level, fuel economy and less environmental pollution. Further, addition of biogas to the NOME is expected to improve the performance. The objective of study was to evaluate the performance parameters such as Total fuel consumption (TFC), Specific fuel consumption (SFC) and Brake thermal efficiency (BTE). The experiment was …
Published in Journal of Energy, Environment & Carbon Credits · Vol. 8, Issue 1, 2018 · pp. 21–25 Read article
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Design And Implementation Of Energy Meter Intrusion Detection And Power Management System
Abstract: Electricity meter bypass is becoming more frequent and pervasive leading to Loss of Revenue (LOR) in electricity sector. Technology has advanced to the point where a gadget that calculates and measures changes in the environment can now detect motion. A network SIM card connected to a GSM module controlled by an ATmega8 microprocessor, is used in the design and construction of this project. In this framework, an LDR sensor is …
Published in Journal of Semiconductor Devices and Circuits · Vol. 9, Issue 2, 2022 · pp. 28–42 Read article
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Influence of Infill Density on Structural Performance of FDM-Processed PET-G Polymer: Experimental Validation through Quadcopter Flight Testing
Abstract: Polyethylene terephthalate glycol-modified (PET-G) is an amorphous thermoplastic copolymer increasingly adopted in structural applications through fused deposition modeling (FDM). However, the correlation between FDM processing parameters, especially infill density, and mechanical performance of PET-G parts remains inadequately characterized under real-life loading conditions. This study investigates how infill density (10% and 30%, grid pattern) influences the structural integrity of FDM-processed PET-G components, validated experimentally through quadcopter airframe fabrication and flight testing. …
Published in Journal of Polymer & Composites · Vol. 14, Issue 3, 2026 · pp. 644–656 Read article