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30 articles for “unloading”
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Evaluation of J-Integral and Fatigue Crack Growth Rate of Semi-elliptical Crack in Compressor Blade
Abstract: Gas turbine compressor blades are subjected to centrifugal, gas bending and vibratory loads. This repeated loading and unloading can reduce the life of compressor blades. This research aims at the estimation of fatigue crack growth rate of various three-dimensional cracks in a compressor blade considering the J-integral calculations for a semi-elliptical crack, subjected to centrifugal loading. Static stress analysis was carried out to ascertain the critical region or crack zone …
Published in Journal of Mechatronics and Automation · Vol. 1, Issue 2, 2014 · pp. 39–46 Read article
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Use of PIC 18 Microcontroller in Electronic Locking System
Abstract: Very often a lot of vehicles carry the illegal or very valuable goods and they do not have owner’s permission to unload them. In such situations, it is proposed to monitor vehicle transit via GPS tracking system. To guarantee appropriate and well-timed reaction to the interfering vehicle introductions, containers are well-appointed with the mobile GPS device and GSM modem. Furthermore door opening sensor is fixed secretly in the container. GPS …
Published in Journal of Microcontroller Engineering and Applications · Vol. 2, Issue 1, 2015 · pp. 24–31 Read article
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Two-dimensional Finite Element Analysis of Bolted Flanged Joints
Abstract: A 2D axisymmetric finite element analysis of flanges has been carried out using ANSYS 7.1 version. The analysis consider gasket as a rigid material for contact analysis and the others where the gasket has been considered as a gasket element. The non-linear behaviour with two unloading curves was used to predict the non-linear behaviour. This paper attempts to study and compare the contact pressure, gap, gasket stress and gasket total …
Published in Journal of Materials & Metallurgical Engineering · Vol. 6, Issue 1, 2016 · pp. 60–65 Read article
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Technology Limits on Differential Gain and Unity-gain Bandwidth of a Differential Amplifier: A Theoretical Analysis
Abstract: The limiting relationship between differential dc voltage gain and unity-gain bandwidth of an externally unloaded differential amplifier have been explored. It has been observed that the product of differential dc voltage gain and unity-gain bandwidth of a differential amplifier has an upper limit which is a technology constant. Keywords: Technology limits, differential amplifier
Published in Journal of VLSI Design Tools and Technology · Vol. 2, Issue 1-2-3, 2012 · pp. 118–124 Read article
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Finite Element Approach for Sheet Metal Forming and Springback: A Review
Abstract: The process by which the sheet metal blank is plastically deformed into a 3D shape by the application of external force without much change in thickness is the sheet metal forming process. The paper describes the mechanism of the sheet metal forming process. Numerical simulation of the metal forming processes has now gained the industrial importance, and it has made it possible to simulate the metal deformation and to calculate …
Published in Trends in Machine design · Vol. 5, Issue 1, 2018 · pp. 33–45 Read article
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Robot: A Smart Technique to Manage Waste
Abstract: AbstractNowadays, the executives of waste from its assortment to unloading and interruption has gotten one of the best testing and exhausting task for metropolitan companies, all around the world. To make this tedious occupation simple, another idea of Smart Dustbin has been thought about for Smart structures, clinics, schools and rail line stations. The Smart trash specialist thought is a progression of conventional garbage man by suspending it to become …
Published in Recent Trends in Parallel Computing · Vol. 7, Issue 3, 2020 · pp. 14–17 Read article
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Investigation and Evaluation of Wear Characteristics of A Nonmetallic Spur Gear
Abstract: A thermoplastic composite material designed and developed for fabrication of nonmetallic composite spur gear. The composite is fabricated using Portland Pozzolanic Cement (PPC) as filler material into the polypropylene matrix followed by injection molding technique. However, geometrical structure of the developed product depends on the parameter like loading-unloading condition and temperature fluctuation that severely influence the material performance and shorten the product life. In the present work, the composite spur …
Published in Trends in Machine design · Vol. 1, Issue 3, 2014 · pp. 73–78 Read article
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Evaluation of J-Integral and Fatigue Crack Growth Rate of Semi-elliptical Crack in Compressor Blade
Abstract: Gas turbine compressor blades are subjected to centrifugal, gas bending and vibratory loads. This repeated loading and unloading can reduce the life of compressor blades. This research aims at the estimation of fatigue crack growth rate of various three-dimensional cracks in a compressor blade considering the J-integral calculations for a semi-elliptical crack, subjected to centrifugal loading. Static stress analysis was carried out to ascertain the critical region or crack zone …
Published in Trends in Mechanical Engineering & Technology · Vol. 4, Issue 2, 2014 · pp. 39–46 Read article
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Design of Solar Powered Mini Hydraulic Crane for Light Weight the Case of Mettu Area
Abstract: In today’s world the need to develop an efficient hydraulic machine is paramount for industries and designers to reduce the labor workers using simple mechanisms. To simplify the personnel effort in some mechanical and hydraulic machine-maintained industries this work is targeted to design and fabrication of a solar powered mini hydraulic crane. This hydraulic crane is made up of combining those components like the hydraulic actuator or actuating cylinder, the …
Published in Journal of Offshore Structure and Technology · Vol. 8, Issue 3, 2021 · pp. 65–70 Read article
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Review on Fatigue Analysis of Mechanical Structures Made Up of Composite Materials
Abstract: Composite materials have been widely used in aerospace, marine applications etc. because of their low density and high strength property. Aircraft wings, horizontal and vertical stabilizers of an aircraft, blades of the wind turbines are manufactured using composite materials. Fatigue occurs when a material is subjected to repeated loading and unloading. If the loads are above a certain threshold, microscopic cracks will begin to form at the surface. In this …
Published in Research & Reviews : Journal of Space Science & Technology · Vol. 4, Issue 1, 2015 · pp. 15–19 Read article