Wear-coefficient analyses for polymer-gear life-time predictions: A critical appraisal of methodologies

Matkovič, S.; Pogačnik, A.; Kalin, Mitjan

doi:10.1016/j.wear.2021.203944

Cited by 21 publications

(16 citation statements)

References 21 publications

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“…168 However, for gear design calculations, the value of wear coefficient of polymers should be obtained from real-scale gear tests. 169 Ghelloudj et al 67 developed a new engineering model to define the evolution of tooth flank wear (wear profile) as a function of number of cycles of driving wheel, the pinion. Additive manufactured FDM (Fused Deposition Modeling) based 3D printed gear is also tested with optimized printing parameters which improves wear resistance by three-folds as compared to default printing settings printed gear.…”

Section: Classification Of Review Of Polymer Gearingmentioning

confidence: 99%

A review on materials and performance characteristics of polymer gears

Jain

Patil

2022

Proceedings of the Institution of Mechanical Engineers, Part C:

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In this research work an extensive review on use of advance materials and performance of polymer gears. Further, literature on polymer gears has been divided into four divisions based on the type of gear material, performance characteristic, modifications, and manufacturing techniques. Materials like polyamide and acetal and their composites are focused due to their huge application quotient. Use of in total six grades that is, PA6, PA66, PA12, PA46, PA618, and PA645 as gear material have been identified. Use of glass and carbon fiber reinforcements in PA gears with varying percentage in a range of 20%–35% and 15%–30%, respectively have been observed. Failure and performance characteristics such as wear, thermal, fatigue, load, transmission, and operational have been illustrated and described in detail. Research studies to improve thermal performance of plastic gears by modifying gear tooth and its profile has also been discussed along with their effects. Application of advance manufacturing technique such as 3D printed additive manufacturing in producing plastic gears is also talked over in this article. This compiled review work aims to assist researchers in selection of plastic gear material and to explore various factors and parameters affecting the failure behavior and performance of plastic gears.

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Section: Classification Of Review Of Polymer Gearingmentioning

confidence: 99%

A review on materials and performance characteristics of polymer gears

Jain

Patil

2022

Proceedings of the Institution of Mechanical Engineers, Part C:

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“…Polymer gears are used widely in many engineering applications, such as office appliances, mechatronic devices, household facilities, computer and laboratory equipment, medical instruments, etc. [ 1 , 2 , 3 , 4 , 5 , 6 , 7 ]. In these applications, the contact of two mechanical elements (i.e., gear flanks) is concentrated on a small contact area, resulting in higher contact stresses, which often exceed the yield stress of the material.…”

Section: Introductionmentioning

confidence: 99%

A Computational Model for Analysing the Dry Rolling/Sliding Wear Behaviour of Polymer Gears Made of POM

Ignatijev,

Borovinšek,

Glodež

2024

Polymers

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This study presents a computational model to determine the wear behaviour of polymer gears. Using PrePoMax finite element numerical calculation software, a proposed computational model was built to predict dry rolling/sliding wear behaviour based on Archard’s wear model. This allows the calculation of the wear depth in each loading cycle with constant mesh updating using the finite element method. The developed computational model has been evaluated on a spur gear pair, where the pinion made of POM was meshed with a support gear made of steel. The computational results obtained were compared with the analytical results according to the VDI 2736 guidelines. Based on this comparison, it was concluded that the proposed computational model could be used to simulate the wear behaviour of contacting mechanical elements like gears, bearings, etc. The main advantage of the model, if compared to the standardised procedure according to the VDI 2736 guidelines, is the geometry updating after a chosen number of loading cycles, which enables a more accurate prediction of wear behaviour under rolling/sliding loading conditions.

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“…In order to improve the characteristics of polymer gears, some additives (such as glass, carbon, and aramid fibres) can be added with the purpose of increasing load capacity [ 14 , 15 , 16 ]. Furthermore, a temperature decrease between meshing gears can be achieved with lubricants such as Polytetrafluoroethylene (PTFE), graphite, or boron nitride [ 17 , 18 ].…”

Section: Introductionmentioning

confidence: 99%

Noise Evaluation of Coated Polymer Gears

2023

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A comprehensive experimental investigation of the noise evaluation of coated spur polymer gears made of POM was performed in this study. The three Physical Vapour Deposition (PVD) coatings investigated were aluminium (Al), chromium (Cr), and chromium nitrite (CrN). The gears were tested on an in-house-developed testing machine under a torque of 20 Nm and at a rotational speed of 1000 rpm. The noise measurements were performed with the tested gear pair on the testing device with a sound-proof acoustic foam used for the acoustic sound-proof insulation. The sound signal was analysed in time, frequency, and time–frequency domains and typical phenomena were identified in the signal. Experimental results showed that the noise level was higher for polymer gears with different coatings if compared to the polymer gears without coatings. With sound analysis in the time–frequency domain, precise degradation of the coatings could be noticed. In future studies, it would be appropriate to use a new method for signal analysis, e.g., high-order statistics and hybrid technique.

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Wear-coefficient analyses for polymer-gear life-time predictions: A critical appraisal of methodologies

Cited by 21 publications

References 21 publications

A review on materials and performance characteristics of polymer gears

A review on materials and performance characteristics of polymer gears

A Computational Model for Analysing the Dry Rolling/Sliding Wear Behaviour of Polymer Gears Made of POM

Noise Evaluation of Coated Polymer Gears

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