International Research Journal of Engineering and Technology (IRJET)
e-ISSN: 2395-0056
Volume: 10 Issue: 08 | Aug 2023
p-ISSN: 2395-0072
www.irjet.net
To study their behavior and performance characteristics of spur Gears by analytical and finite element analysis Pradeep Kumar Dhakad1, Purushottam Sahu2, Ghanshyam Dhanera 3 1Research Scholar BM College of Technology, Indore
2Professor and HOD BM College of Technology, Indore 3Professor BM College of Technology, Indore ---------------------------------------------------------------------***--------------------------------------------------------------------Advantages: Gears yield a multitude of benefits in the Abstract - Finite Element Method (FEM) models were
realm of power transmission.
utilized to analyze contact stresses, deviating from the traditional approach of employing Hertz's equations, originally designed for contact between two cylinders, to compute gear contact stresses. This study places a preference on investigating contact challenges through FEM. To facilitate this analytical approach, a stiffness relationship is established between the two contacts areas using a spring element positioned precisely at the point of contact. The outcomes of the two-dimensional FEM analyses, performed using ANSYS software, are detailed in this thesis. The resultant contact stress values from these analyses are then juxtaposed against theoretically computed values. Remarkably, both datasets exhibit a high degree of alignment, underscoring the FEM model's precision in simulating gear contact stresses. In this thesis, an exhaustive examination is conducted on the influence of gear body rotation on the overall stiffness of the gear body. This phenomenon is attributed to bending deflection, cutting off displacement, and radial deformation. Thorough investigations are carried out across multiple positions within the gear meshing cycle. The central focus revolves around an in-depth exploration of the contact stress characteristics inherent in spur gears. This exploration takes into account Buckingham's Dynamic Load and the dynamic load formulation as per the Lewis Equation. Key Words: Spur gear, hertz-contact stress, bending stress, finite element analysis, contact stress, Dynamic Load
Function: Gears assume a pivotal role within an array of mechanical systems, facilitating the seamless transmission of power, motion, and positional accuracy. They serve as conduits for the efficient conversion of rotational motion between shafts, enabling adjustments in speed and direction, and guaranteeing meticulous alignment among disparate components.
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Impact Factor value: 8.226
Optimal Power Transmission Efficiency: Gears exhibit an impressive power transmission efficiency, typically hovering at around 98%. This signifies a minimal power loss during the transfer process, resulting in a remarkably effective conveyance of power from one element to another.
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Space-Efficient Design: Gears excel in transmitting substantial power within a confined spatial framework. Their compact configuration proves advantageous in scenarios with limited space availability, promoting efficient power transmission.
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Robust High-Speed Capability: Gears boast the capacity to withstand elevated rotational speeds without incurring noteworthy wear or performance deterioration. This attribute renders them eminently suitable for applications necessitating swift power transmission.
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Exquisite Timing and Alignment: Gears deliver meticulous timing and precision in alignment. The interlocking teeth of gears ensure precise synchronization and harmonious alignment of components. This attribute is indispensable in contexts demanding meticulous timing and accurate positioning, as observed in automotive engines and industrial machinery.
Disadvantages: Nonetheless, gears exhibit certain drawbacks when juxtaposed with alternative power transmission mechanisms such as belts and chains.
1. INTRODUCTION
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Elevated Cost: The manufacturing of gears tends to entail higher expenses compared to belts and chains. The gear production process entails intricate machining and often mandates employment of premium-grade materials. The heightened intricacy and material expenses contribute to escalated manufacturing costs.
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