<i>In situ</i> measurement of gear tooth profile during FZG gear micropitting test

Lin, Jiachun; Bergstedt, Edwin; Lindholm, Per; Shi, Zhaoyao; Olofsson, Ulf

doi:10.1088/2051-672x/ab0637

Cited by 4 publications

(2 citation statements)

References 10 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The tooth profile measured was firstly fitted to its nominal shape according to the method described by Lin et al. 7 Thus, the deviation of the measured profile from its nominal shape was obtained and the nominal form was removed from the measured profile. A Gaussian low pass filter with cut off length λs=0.0025 mm then was applied to obtain the primary profile.…”

Section: Methodsmentioning

confidence: 99%

Influence of gear surface roughness on the pitting and micropitting life

Bergstedt

Lin

Olofsson

2020

Proceedings of the Institution of Mechanical Engineers, Part C:

Self Cite

View full text Add to dashboard Cite

Pitting and micropitting are the two main gear rolling contact fatigue modes. It is widely accepted that micropitting will lead to pitting; however, the relationship between pitting and micropitting life needs further investigation. In this work, micropitting and pitting tests were performed on an FZG back-to-back test rig using standard FZG PT-C and GF-C gears. The gear tooth profile change due to micropitting and pitting damage was measured in situ in the gearbox using a profilometer after each test. The gear surface roughness parameters were calculated from the measured tooth profile. A Gaussian low pass filter with cut off length [Formula: see text] mm was applied to the measured tooth profile to obtain the waviness. The calculated roughness parameters and the obtained tooth profile with waviness for each test were imported into the KISSsoft software to calculate the contact stress and specific film thickness at the corresponding load stage. Experimental results show that smooth gear surface can reduce or even avoid micropitting damage, but could lead to a reduction in pitting life.

show abstract

Section: Methodsmentioning

confidence: 99%

Influence of gear surface roughness on the pitting and micropitting life

Bergstedt

Lin

Olofsson

2020

Proceedings of the Institution of Mechanical Engineers, Part C:

Self Cite

View full text Add to dashboard Cite

show abstract

“…However, as the performance requirements of gears are increased in terms of scuffing risk, efficiency, micro-pitting risk, contact stress and noise, it is required that we understand more about the gear flank surface in terms of how it performs and how we model this performance [4][5][6][7]. In particular, micropitting and scuffing are difficult to model and there is much on-going research in this area [8][9][10][11] supported by international standards [12][13][14][15][16]. Some of these failure modes are sensitive to regions where the geometry changes suddenly, such as initial contact at the tip or edges of the gear face width where the lubrication regime changes are difficult to simulate [17][18][19].…”

Section: Introductionmentioning

confidence: 99%

Filtering effects on involute gear form measurement

Reavie

Frazer

Shaw

2023

Meas. Sci. Technol.

View full text Add to dashboard Cite

Traditional gear measurement results are used to classify a gear tolerance grade in accordance with ISO 1328-1:2013 but as more stringent requirements are placed on gear performance it is important to be able to properly characterise measurements within a single tolerance grade. However, the measurement uncertainty of the measurement machines is not improving at the same rate as the tolerance requirements, and it is not uncommon to have a sub 10 micron tolerance to be measured with machine with a 1-3 micron uncertainty capability. This breaks the ‘rule of thumb’ that the uncertainty should be smaller than one tenth of the value you are trying to measure. It is therefore important to review the measurement and evaluation process to discern if there are any areas for improvement within our current methods. Additionally, the measurements are being used to refine gear tooth contact analysis performance models and the development of optical and high speed tactile scanning measurement methods is allowing the 3D gear flank surface measurement a feasible option on the shop floor. A greater understanding of the involute flank beyond the standard evaluation limits is required. These developments have prompted a review of the effect that the gaussian filters specified in ISO 1328-1:2013 can have and that they are fully understood by those who must perform and interpret the measurement results. This paper examines the effect that these filters have on measurements where micro geometry corrections or tooth tip and end face chamfers are present. Methods of minimising these effects are reviewed with specific reference to strategies defined in ISO 16610-28:2016 and recommendations are offered to minimise the effects when evaluating the gear tolerance class and quantifying gear flank micro geometry.

show abstract

Compensation of mounting error in in-situ wear measurement during gear pitting test

Lin

Wang

et al. 2022

Measurement

View full text Add to dashboard Cite

In situ measurement of gear tooth profile during FZG gear micropitting test

Cited by 4 publications

References 10 publications

Influence of gear surface roughness on the pitting and micropitting life

Influence of gear surface roughness on the pitting and micropitting life

Filtering effects on involute gear form measurement

Compensation of mounting error in in-situ wear measurement during gear pitting test

Contact Info

Product

Resources

About