Sensitivity analysis of tip-thickness and slope on the tip strength of spur gear sets

Kitsos, Ioannis; Kanellopoulos, Ioannis; Vasileiou, Ioannis

doi:10.1063/1.4897826

Cited by 1 publication

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“…More specifically, the scope of these techniques is to decrease the generated stress maximum at the root fillet. Using asymmetric teeth profiles is a well-known technique for increasing the load carrying capacity of gears and improving the mechanical characteristics (Litvin et al, 2000;Kapelevich, 2000;Spitas et al, 2009;Kitsos et al, 2014). The load on the drive side and the coast side of the tooth are different and therefore the design of asymmetric tooth profiles enhances the bending performance of the gear.…”

Section: Introductionmentioning

confidence: 99%

Improving strength for automotive plastic gears through directional fibre reinforcement

Spitas

2019

IJPT

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In this paper, a new topology of reinforcing plastic gears with carbon fibres is introduced. The reinforcement is placed tangentially to the critical cross section at the tooth fillet to improve bending strength. The mechanical modelling of the fibrous reinforcement is performed using an anisotropic material stiffness matrix derived from the analysis of a representative volume element using commercial stress analysis software. Benchmarking against conventional plastic gears illustrates that the maximum fillet stress, which is responsible for tooth failure in overloading conditions is greatly reduced, therefore rendering these gears suitable for considering their use in high load applications such as in the automotive industry. Also, the effect of the thickness of the reinforcement on the maximum developed tensile stress at the root is examined. The results show significant decrease of the bending stress at the root fillet rendering this design an alternative way in reinforcing plastic gears.

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Section: Introductionmentioning

confidence: 99%

Improving strength for automotive plastic gears through directional fibre reinforcement

Spitas

2019

IJPT

View full text Add to dashboard Cite

show abstract

Sensitivity analysis of tip-thickness and slope on the tip strength of spur gear sets

Cited by 1 publication

References 0 publications

Improving strength for automotive plastic gears through directional fibre reinforcement

Improving strength for automotive plastic gears through directional fibre reinforcement

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