Conference Papers

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Author: search.filters.author.Sutar, S.

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    Material optimization of spur gear tooth
    (American Institute of Physics Inc. subs@aip.org, 2020) Kumar, G.C.M.; Basheer, B.; Sutar, S.; Doddamani, M.
    Gear is the most critical component widely used in the transmission of motion and power between shafts. During motion, the gears are loaded, which develops critical bending stress at the root of the gear and also at the point of contact. The loading point "Highest Point Single Tooth Contact" (HPSTC) is the most critical in any gear. The present research work involves a reduction in the weight of gear by optimizing material inside the tooth. This work involves removing material by making holes inside the tooth at different locations with different sizes. The FEM analysis leads to optimizing the material utilization and is carried out using ANSYS APDL tool. © 2020 Author(s).
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    Finite Element Analysis for Material Optimization of a Spur Gear by Radial Holes
    (Springer Science and Business Media Deutschland GmbH, 2022) Sutar, S.; Kumar, G.C.; Doddamani, M.
    Use of advanced materials in gear manufacturing lead to the best use of the material is achieved by geometric optimization, which uses less material. Removal of the material from gear makes lighter weight gear, and the simulation study helps in understanding their effects on stress distribution. This present research work focuses on removing material from the gear tooth for developing lightweight gears. Circular holes are introduced radially through the gear tooth and holes of 1.5 mm diameter created from top land of the gear tooth with varying depth from 5 to 20 mm. This leads to a volume reduction of 2.49% to a maximum of 12.451% as compared to no radial hole on gear. The analysis of CAD models created in CREO software of pinion and gear assembly is carried out in Ansys Workbench 17.2. Stresses in gear proposed are compared with the gear without a hole. The magnitude of stresses at the roots for both pinion and gear is observed and discussed. © 2022, The Author(s), under exclusive license to Springer Nature Singapore Pte Ltd.
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    Stress analysis of a gear using photoelastic method and Finite element method: Review
    (Elsevier Ltd, 2022) Marle Ramachandra, P.; Sutar, S.; Mohan Kumara, G.C.
    Every day in our life, we use the gear, and it has become an integral and most used component. Gears have been in use for more than 100 years with different shapes and sizes in all the domains. For many decades gear has been the most researched component, and still, much research is going on. Pitting and surface hardness is understood by studying root stress and contact stress. The experimental (Photoelasticity), analytical, and Finite element method research helps develop new gear. Toothed gears transfer both motion and power during transmission. Power initiated at the first gear will have significant power loss when it reaches the final gear. When it comes to the assembled gear's performance and durability, we need to check on fatigue and reliability. The critical parameter for designing the gear is the contact stress created between the mating gear. In a comparison study for maximum contact stress, the load applied is around 300 N, and stress developed by the experimental method is 1775.1 N/mm2, and using the FEM is 1781.1 N/mm2, with a 1% error. Asymmetric gears are the replacement for conventional involute gears, they also provide the required strength, and also, there is a reduction in the weight of the gear. Materials like Metal, Epoxy resin, Polymer, Etc are used to manufacture gear. Composite gears can transmit power up to 175 KW. © 2022