Experimental and numerical study of a loaded cylindrical glass fibre reinforced PA6 gear

Cathelin, Julien; Guingand, Michèle; Vaujany, Jean Pierre de; Chazeau, Laurent

doi:10.1533/9781782421955.138

Cited by 4 publications

(2 citation statements)

References 10 publications

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“…16 Accordingly, the previously introduced methods without considering viscoelastic properties are unsuitable for nylon gears. Hiltcher et al, 17 Letzelter et al, 18,19 and Cathelin et al [20][21][22] applied the thermoviscoelastic (TVE) material models that describe the rate dependence and the temperature dependence for the contact analysis of polyamide 66 (PA66) gears and validated them experimentally. C ̌erne et al 23 simulated the meshing temperature of POM gears by considering the strain rate sensitivity of POM while Doll 24 considered the hysteretic dissipation within PEEK gears.…”

Section: Introductionmentioning

confidence: 99%

Numerical investigation on meshing temperature of multicomponent nylon gears by incorporating viscoelasticity

Gong

et al. 2023

Proceedings of the Institution of Mechanical Engineers, Part L:

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This study concerns a numerical analysis of the meshing temperature for a multicomponent nylon gear by incorporating typical viscoelastic responses of polymers. Firstly, the generalized Maxwell model parameters were calibrated by the dynamic mechanical analysis to capture the viscoelasticity of polyamide 66. Next, the finite element model predicting the meshing temperature was established, including the heat generation analysis model, which calculates the generation of the frictional and hysteretic heat, and the heat propagation analysis model, which simulates the heat transmission. Different material models were used for polyamide 66 to investigate the influences of temperature dependence, strain rate dependence, and hysteretic effect. The effect of the iteration sequence on the meshing temperature calculation was also analyzed, i.e., how the heat generation should be updated as the loading cycles increase. A reasonable iteration scheme was determined by balancing the computational precision and consumption. It is noteworthy that the evolution of the ambient temperature around the gear and the worm within the housing was also considered. Finally, the accuracy of such meshing temperature analysis was validated on a self-developed gear test rig, in terms of the peak temperature evolution on the gear side surface. The experimental results and the simulation with the ambient temperature correction match well and the maximum error is 5 °C.

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Section: Introductionmentioning

confidence: 99%

Numerical investigation on meshing temperature of multicomponent nylon gears by incorporating viscoelasticity

Gong

et al. 2023

Proceedings of the Institution of Mechanical Engineers, Part L:

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“…In the literature on the subject there are only some quantitative results of experimental studies of wear of polymer composite materials for MP gears [14 -16], which can be used to predict their wear using existing calculation methods. In [14] the experimental and numerical study a loaded cylindrical PA66 gear was given. In [15], the results of experimental studies of the influence of the sliding speed on the friction force for NaPA6/steel S355J2 pairs with twin-disc setup are presented.…”

Section: Introductionmentioning

confidence: 99%

Analytical assessment of the sliding friction coefficient influence on durability, wear and contact pressure in spur gears

Chernets¹,

Kornienko²,

Chernets³

et al. 2021

FME Transactions

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The research of influence of sliding friction coefficient on durability is carried out for gear train containing steel wheels and metal-polymer gear trains containing polyamide gears reinforced with carbon and glass dispersion fibers. The teeth engagement conditions (two teeth pairs - single tooth pair - two teeth pairs) and the change of teeth tribocontact interaction conditions due to wear are also taken into account. The gear train containing the carbon-filled composite gear has the highest durability in comparison with other types in all ranges of change of sliding friction coefficient. The highest maximum contact pressures will be at the point of entry into the one-pair engagement. The change of initial maximum contact pressures in gear train due to tooth wear was also investigated and its regularities were established. The kinetics of the tooth profile wear was studied. It is established that the maximum wear will be at the point of entry into the one-pair engagement. Close to it will be the wear at the entrance into the two-pair engagement. The course of wear at different points of engagement for the studied gear trains containing steel toothed wheels and gear trains containing steel and composite gears is almost the same except for the point of the teeth exit from the engagement.

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Assessment of fiber orientation models predictability by comparison with X-ray µCT data in injection-molded short glass fiber-reinforced polyamide

Oubellaouch,

Pelaccia,

Bonato

et al. 2024

Int J Adv Manuf Technol

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Experimental and numerical study of a loaded cylindrical glass fibre reinforced PA6 gear

Cited by 4 publications

References 10 publications

Numerical investigation on meshing temperature of multicomponent nylon gears by incorporating viscoelasticity

Numerical investigation on meshing temperature of multicomponent nylon gears by incorporating viscoelasticity

Analytical assessment of the sliding friction coefficient influence on durability, wear and contact pressure in spur gears

Assessment of fiber orientation models predictability by comparison with X-ray µCT data in injection-molded short glass fiber-reinforced polyamide

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