Analysis of fracture characteristics of thin and thick rim asymmetric spur gear based on strain energy release rate

Namboothiri, Nandu V.; Marimuthu, P.; Kumar, SP Suresh

doi:10.1016/j.tafmec.2022.103496

Cited by 2 publications

(2 citation statements)

References 26 publications

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“…Reliability assessment and failure analysis are essential for ensuring the longevity and safe operation of power transmission systems (NAMBOOTHIRI et al, 2022). Failure modes, such as tooth breakage, wear, or pitting, should be analyzed to identify the root causes and implement design improvements (KADER et al, 1998).…”

Section: Design Considerations and Optimization Techniquesmentioning

confidence: 99%

Determining the Maximum Power Transfer Capacity of Spur Gears Mounted on Shafts With Spline Bushes

Filho¹,

Melo²,

Silva³

et al. 2023

JER

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This technical article focuses on determining the maximum power transfer capacity of spur gears mounted on shafts with spline bushes using an interference fit. Spur gears play a crucial role in power transmission systems, and the use of spline bushes with an interference fit provides enhanced stability, load distribution, and safety. The gear is mounted on the spline bush, which, in turn, is mounted on the shaft using interference fit. This arrangement ensures that in case of torque overload, the interference fit allows the spline bush to slip preventing mechanical structural failure of the transmission elements. Understanding the maximum power capacity of these gear systems is essential for ensuring reliable and efficient operation. The article provides an overview of spur gears, spline bushes, and the benefits of an interference fit. It explores the factors influencing power transmission and presents analytical methods for calculating critical parameters. A case study calculation is included to demonstrate the application of the discussed methods. Design considerations and optimization techniques for enhancing power capacity are also discussed. By determining the maximum power transfer capacity, engineers can make informed design decisions, optimize gear systems, and ensure both reliable power transmission and safety.

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Section: Design Considerations and Optimization Techniquesmentioning

confidence: 99%

Determining the Maximum Power Transfer Capacity of Spur Gears Mounted on Shafts With Spline Bushes

Filho¹,

Melo²,

Silva³

et al. 2023

JER

View full text Add to dashboard Cite

show abstract

“…Do gan et al [17] investigated fatigue crack propagation using numerical simulations, obtaining the directions of the cracks for different rim thicknesses, drive side pressure angles and durations. Nandu et al [18] studied the effect of backup ratio on the fatigue crack behaviour of symmetric and asymmetric spur gears under mixed-mode fracture. The results show that the gear fracture strength increases as the gear rim thickness increases.…”

Section: Introductionmentioning

confidence: 99%

Investigation of Crack Propagation Behaviour in Thin-Rim Gears: Experimental Tests and Numerical Simulations

et al. 2023

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Thin-rim gears are widely used in industrial fields such as aerospace and electric vehicles due to the advantage of light weight. Yet, the root crack fracture failure of thin-rim gears significantly limits their application and further affects the reliability and safety of high-end equipment. In this work, the root crack propagation behavior of thin-rim gears is experimentally and numerically investigated. The crack initiation position and crack propagation path for different backup ratio gears are simulated using gear finite element (FE) models. The crack initiation position is determined using the maximum gear root stress position. An extended FE method coupled with commercial software ABAQUS is used to simulate the gear root crack propagation. The simulation results are then verified by conducting experimental tests for different backup ratio gears based on a dedicated designed single-tooth bending test device.

show abstract

Analysis of fracture characteristics of thin and thick rim asymmetric spur gear based on strain energy release rate

Cited by 2 publications

References 26 publications

Determining the Maximum Power Transfer Capacity of Spur Gears Mounted on Shafts With Spline Bushes

Determining the Maximum Power Transfer Capacity of Spur Gears Mounted on Shafts With Spline Bushes

Investigation of Crack Propagation Behaviour in Thin-Rim Gears: Experimental Tests and Numerical Simulations

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