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111 articles for “gears”
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Bending Stress Analysis of Involute Helical Gear and Wildhaber-Novikov Gear
Abstract: This paper presents a bending stress analysis for Wildhaber-Novikov circular-arc gear (W-N gear) and involute helical gear. Bending stress analyses performed are under continuous load transmission during rotation using finite element method. Using CATIA V5 R19, three dimensional W-N gear and involute helical gear are modeled by considering same number of teeth, module, helix angle, pressure angle and face width. Then nonlinear contact analysis was conducted on involute helical gear …
Published in Journal of Mechatronics and Automation · Vol. 1, Issue 2, 2014 · pp. 17–21 Read article
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Gear-Related Stress Analysis and Comparison Between the Fem and Agma Standards
Abstract: In many different devices, gears enable the efficient transfer of motion and torque. They are an essential component of modern mechanical power transmission systems. It has been demonstrated that bending and surface contact stresses at the gear tooth are the primary causes of gear failure, despite their widespread use. Too much stress can lead to tooth wear, pitting, or breakage, which can ultimately reduce the operating life and reliability of …
Published in Trends in Mechanical Engineering & Technology · Vol. 15, Issue 3, 2025 · pp. 13–18 Read article
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Finite Element Modelling of Contact Stresses in Helical Gear Systems
Abstract: Helical gears are widely used in modern power‐transmission systems because of their high load‐carrying capacity, smooth meshing action, and increased overlapping of gear teeth. However, the design of helical gear pairs is constrained by contact stresses generated at the mating tooth surfaces, which can lead to surface fatigue (pitting), micro-cracking, and ultimately gear failure. Traditional analytical methods, such as those of the American Gear Manufacturers Association (AGMA) or International Organization …
Published in Trends in Machine design · Vol. 12, Issue 3, 2025 · pp. 35–39 Read article
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Investigation of Surface Finish and Vibration in Gear Hobbing
Abstract: Gear hobbing is important machining process. The process parameters are expected to influencesurface finish in gear hobbing. Depending upon service requirements, the materials of the gear maybe of different types. A desired level of surface finish and accuracy of gear tooth is neededirrespective of the material of the gear, depending upon type of applications of the gear. The changein process parameters may influence both the vibration and surface finish in …
Published in Trends in Mechanical Engineering & Technology · Vol. 11, Issue 1, 2021 · pp. 28–37 Read article
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Design and Optimization of tooth Profile Modification of Spur Gear by FEA Approach
Abstract: The most important component in vehicle is Gear, In order to accomplish high load carrying capacity with reduced weight of gear drives but with increased strength in gear transmission, gear tooth stress analysis, tooth modifications and design of gear drives are becoming major research area. The failure of gear teeth occurs for particular reason such as high load carrying capacity, high speed rotation etc. The bending stress is largest in …
Published in Journal of Automobile Engineering and Applications · Vol. 5, Issue 2, 2018 · pp. 15–24 Read article
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Modeling and Acoustic Analysis of Noise Vibration in Automotive Gearbox by Non-destructive Testing
Abstract: A gearbox is used for transferring power from the engine to the wheels. Predicting the vibration and noise radiation from a dynamic system like a gearbox gives designers an insight early in the design process. It was conducted experimental and modeling of vibration and noise for magnitude and pressure level variations in a Peugeot 206 automotive 5-speed gearbox. It was extract vibration data related to different periodic processing and then …
Published in Journal of Experimental & Applied Mechanics · Vol. 11, Issue 3, 2020 · pp. 54–63 Read article
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Design And Fabrication of Contactless Magnetic Gears
Abstract: Modern engineering prioritizes speed, efficiency, and reliability, spurring innovations like contactless magnetic gear systems that transmit torque through interacting magnetic fields from permanent magnets, eliminating physical contact to drastically cut friction, backlash, wear, lubrication needs, and heat—operating silently with minimal vibration and peak efficiencies up to 99% under ideal conditions, outperforming traditional gears in low-speed, high-torque direct-drive applications such as motors. The design centers on two rotors: an outer high-speed …
Published in Trends in Mechanical Engineering & Technology · Vol. 16, Issue 2, 2026 Read article
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Design of Gear Tooth Rounding and Chamfering Machine
Abstract: All movable gears which mesh with another gear require either rounding or chamfering. The operation is generally applied to the teeth of spur gears for use in sliding gear transmission of automotive vehicles and machine tool Gear boxes where the gears are moved on their longitudinal axes meshing with another spur gear. In current scenario the mechanically operated machines require lot of settings, which is time consuming and requires one …
Published in Trends in Machine design · Vol. 4, Issue 3, 2017 · pp. 38–44 Read article
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Downshifting Strategy Using Gear Skipping During Normal Braking in Electric Vehicles Equipped with AMT
Abstract: In this paper, the regenerative braking method using optimal downshifting is investigated to increase the recovering energy during normal braking in an electric vehicle equipped with Automatic Manual Transmission (AMT). First, the modeling of the electric vehicle powertrain and consideration of brake force distribution was carried out. Based on these, the method to select general downshifting points was mentioned in the electric vehicle. Second, the effect of power interruption on …
Published in Journal of Automobile Engineering and Applications · Vol. 12, Issue 2, 2025 · pp. 8–19 Read article
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A Systematic Review of Advanced Composite Materials for High-Performance Spur Gear Applications
Abstract: This is a review which provides specific and detailed information regarding the fiber-reinforced polymer (FRP) composite to replace traditional steel in high-performance spur gears with emphasis on mechanical performance, computational modeling, and experimental validation. Methods: The current literature was thoroughly investigated that includes material properties, material simulation (e.g., finite element analysis, FEA), and experimental gear testing procedures (e.g., DIN 51354, ASTM G99). Certain case studies in the aerospace and automotive …
Published in Journal of Polymer & Composites · Vol. 14, Issue 1, 2026 · pp. 209–220 Read article
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Design, Analysis and Experimental Study of Worm and Worm Gear Pair for Plug Valve Application
Abstract: The present work deals with the design procedure, load carrying capacity, mathematical modelling,analysis of worm and worm gear for plug valve application. The plug valves are used in various fluidservices applications. It performs well in slurry applications. It is also used in air, gaseous servicesand oil piping systems and a like applications. In plug valve the main and important function of theworm gear drive is to reliably transmit torque and …
Published in Trends in Machine design · Vol. 8, Issue 1, 2021 · pp. 11–20 Read article
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Effect of Fillet Radius on Bending Stress in Helical Gear using FEA
Abstract: A well-optimized change in root fillet radius could greatly benefit helical gear operation by providing a smoother transmission with less impact and noise. The fillet area of the gear root is an area of extensive bending stress concentration. An increase in fillet radius for helical gears is considered to minimise the bending stress at the gear tooth's base. This paper develops appropriate models of various gear tooth profiles of the …
Published in Journal of Polymer & Composites · Vol. 11, Issue 8, 2023 · pp. 129–136 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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Procedure and design of a Gear Hobbing Machine
Abstract: Making gears involves using a hobbing machine. Sprockets, gears, and splined components are cut using a hob, a specialised cutting tool, on a hobbing machine, a sort of milling device. The hob is a cylinder-shaped cutting tool with helical-shaped teeth arranged in rows. Sprockets, gears, and splined components are cut using a hob, a specialised cutting tool, on a hobbing machine, a sort of milling device. The hob is a …
Published in Trends in Mechanical Engineering & Technology · Vol. 12, Issue 2, 2022 · pp. 17–20 Read article
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Finite Element Analysis of Spur Gear Manufactured of Al7475-SiC Composites
Abstract: The spur gear is used in power transmission systems in industrial and automotive sectors. But sometimes, these gears have problems with their teeth due to excessive stress and wear. Some gears don't work as well, so in the present work better material is used to make them work well. Composite materials, which is known for their optimal strength-to-weight ratio and weight reduction benefits. So, these materials are considered substitutes for …
Published in Journal of Polymer & Composites · Vol. 12, Issue 2, 2024 · pp. 279–284 Read article
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Linear Static and Fatigue Analysis of Nose Landing Gear for Trainer Aircraft
Abstract: The main objective of this paper is to present prototype of aircraft landing gear using CATIA V5 software to study the behavior of landing gear as per actual working condition and to perform structural analysis to study the landing gear behavior for cyclic loading (fatigue loading). Determining the loading modes in the nose landing gear is subjected to static load and cyclic loads which should be taken into account in …
Published in Journal of Mechatronics and Automation · Vol. 1, Issue 2, 2014 · pp. 1–10 Read article
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Condition monitoring and fault diagnosis of gears based on vibration signatures - A review
Abstract: Gearbox is widely used in industrial and military applications. It is subjected to high service load and harsh operating conditions or inevitable fatigue, due to which faults may develop in gears. Fault diagnosis plays an important role in condition monitoring to enhance the machine time. Vibration-based condition monitoring can be applied in gear systems to detect the origination and expansion of fault before the occurrence of failure. Eventually, occurrence of …
Published in Trends in Mechanical Engineering & Technology · Vol. 9, Issue 1, 2019 · pp. 39–45 Read article
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Design and Computational Analysis of Hybrid Carbon Fiber-Enhanced Metal Matrix Composite Spur Gears
Abstract: The automobile industry has to find the alternative solution for steel grade gears to overcome the weight to high strength ratio and thermal consideration with high damping properties. This study describes the design, FEM analysis, and performance evaluation of three new hybrid composite spur gears: a monolithic carbon fiber/epoxy (80/20 weight percent) composite (A), and two hybrids with steel (B) and aluminum (C) matrices (64% CF, 21% Epoxy, 15% metal). …
Published in Journal of Polymer & Composites · Vol. 14, Issue 1, 2026 · pp. 158–172 Read article
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Incorporating Material Fatigue Parameter Determine in The Rolling & Sliding Contact Fatigue Analysis of Gears
Abstract: As the material's intricate stresses and strains are always shifting during phases of loading, determining the predicted equipment working under rolling-sliding contact loads and their fatigue lives (wheels, bearings, and gears) is particularly difficult. Another difficulty is not knowing the precise characteristics of the material used to make the components, which is particularly noticeable. when it comes to heat-treated components, where the material characteristics' values can differ greatly among the …
Published in Journal of Polymer & Composites · Vol. 12, Issue 4, 2024 · pp. 1–5 Read article
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Investigation, Fabrication and Testing of Spur Gear Using Composite Material
Abstract: Composite materials constitute one of the favorable, efficacious material zones for tomorrow’s sustainable future through identification of materials with higher strength to weight ratio. A composite material is combination of two or more different materials with varied qualities that work together to create a material that is better than the sum of its parts. Therefore, finding some alternative material for various mechanical applications to accelerate the Indian composite industry is …
Published in Journal of Experimental & Applied Mechanics · Vol. 16, Issue 2, 2025 · pp. 1–8 Read article