Numerical analysis of gear contact fatigue based on machine vision

被引：1

作者：

Chen L. ^{[1
]}

Wei P. ^{[1
]}

Yu Y. ^{[2
]}

Liu H. ^{[1
]}

Zhu C. ^{[1
]}

Zhou H. ^{[1
]}

机构：

[1] State Key Laboratory of Mechanical Transmissions, Chongqing University, Chongqing

[2] Guizhou Qunjian Precision Machinery Co. Ltd., Zunyi

来源：

Zhongnan Daxue Xuebao (Ziran Kexue Ban)/Journal of Central South University (Science and Technology) | 2021年 / 52卷 / 12期

基金：

中国国家自然科学基金;

关键词：

Continuous damage; Digital image processing; Gear rolling contact fatigue; Machine vision; Microstructure;

D O I：

10.11817/j.issn.1672-7207.2021.12.008

中图分类号：

学科分类号：

摘要：

The traditional macro gear contact fatigue life prediction method was based on the assumption of uniform continuous material, without considering of material microstructure and it was difficulty to describe the influence of real microstructure characteristics on the gear rolling contact fatigue life. In order to break through the limitations of traditional method, a numerical analysis method of gear contact fatigue based on machine vision digital image processing technology considering material microstructure was proposed. Firstly, the real grain morphology of material in the meshing area at the gear node was obtained through characterization experiment. Secondly, the grain morphology image was identified by MATLAB image processing toolbox to generate real micro geometric topology. Thirdly, the constitutive relationship of elastoplastic continuous damage coupling was constructed and the two-dimensional finite element numerical model for gear contact fatigue analysis was established. Finally, the distribution of maximum contact pressure, grain boundary shear stress and grain boundary damage during cyclic loading of gear was studied. The effects of different microstructure characteristics of gear node meshing area on damage were analyzed. The results show that the image processing technology based on machine vision can be applied to simulate the real microstructure of gear material. In the process of gear contact fatigue failure, the maximum contact pressure decreases gradually and the damage of the grain boundaries displays localization phenomenon by degrees with the increasing number of loading cycles. In the later stage of damage, when the image processing method is used to reconstruct microstructure, the damage rate is obviously accelerated. © 2021, Central South University Press. All right reserved.

引用

页码：4271 / 4282

页数：11

共 36 条

[11]

PAUL S K., Real microstructure based micromechanical model to simulate microstructural level deformation behavior and failure initiation in DP 590 steel, Materials & Design, 44, pp. 397-406, (2013)

[12]

MISHNAEVSKY L, WEBER U, SCHMAUDER S., Numerical analysis of the effect of microstructures of particle-reinforced metallic materials on the crack growth and fracture resistance, International Journal of Fracture, 125, 1, pp. 33-50, (2004)

[13]

HOLLISTER S J, KIKUCHI N., Homogenization theory and digital imaging: a basis for studying the mechanics and design principles of bone tissue, Biotechnology and Bioengineering, 43, 7, pp. 586-596, (1994)

[14]

DING Youping, SHI Zhiqiang, Application of computer image processing and fuzzy technology on determination of grain size, Heat Treatment of Metals, 30, 9, pp. 68-70, (2005)

[15]

KATANI S, ZIAEI-RAD S, NOURI N, Et al., Microstructure modelling of dual-phase steel using SEM micrographs and voronoi polycrystal models, Metallography, Microstructure, and Analysis, 2, 3, pp. 156-169, (2013)

[16]

LEWIS A C, JORDAN K A, GELTMACHER A B., Determination of critical microstructural features in an austenitic stainless steel using image-based finite element modeling, Metallurgical and Materials Transactions A, 39, 5, pp. 1109-1117, (2008)

[17]

SPANOS G, ROWENHORST D J, LEWIS A C, Et al., Combining serial sectioning, EBSD analysis, and image-based finite element modeling, MRS Bulletin, 33, 6, pp. 597-602, (2008)

[18]

LIAN J, YANG H, VAJRGUPTA N, Et al., A method to quantitatively upscale the damage initiation of dual-phase steels under various stress states from microscale to macroscale, Computational Materials Science, 94, pp. 245-257, (2014)

[19]

LEMAITRE J, DESMORAT R., Engineering damage mechanics: ductile, creep, fatigue and brittle failures, pp. 77-139, (2005)

[20]

RAJE N, SADEGHI F, RATEICK R G., A statistical damage mechanics model for subsurface initiated spalling in rolling contacts, Journal of Tribology, 130, 4, (2008)

← 1 2 3 4 →