Stress analysis of coated spur and helical gears considering load distribution

Stress analysis of coated spur and helical gears considering load distribution
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考虑载荷分布的涂层正齿轮和斜齿轮的应力分析

DOI:
10.1177/1350650120909607
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发表时间:
2020-03
期刊:
Proceedings of the Institution of Mechanical Engineers - Part J: Journal of Engineering Tribology
影响因子:
--
通讯作者:
Zhou Qinghua
Zhou Qinghua
中科院分区:
其他
文献类型:
--
作者:
Yang Yong;Wang Jiaxu;Huang Yanyan;Yang Wanyou;Zhou Qinghua

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为了确定临界载荷条件,提出了考虑滑动摩擦的直齿轮和斜齿轮副沿接触线的载荷分布模型沿着。此外,介绍了一种半解析方法来模拟涂层齿轮的应力场。利用频响函数、离散卷积和快速傅里叶变换得到的影响系数计算弹性场。研究了摩擦系数、涂层特性和涂层厚度对齿轮副啮合临界载荷位置应力分布的影响。给出了涂层-基体界面上最大横向应力和剪应力分布与摩擦系数和涂层厚度的关系图,为合理选择涂层厚度提供了依据。
A load distribution model along the line of contact considering sliding friction is proposed for both spur and helical gear pairs in order to determine the critical load condition. Further, a semi-analytical method is introduced for modeling the stress field of coated gears. The elastic field is calculated by utilizing influence coefficients obtained from frequency response functions and discrete convolution and fast Fourier transform. Effects of friction coefficient, coating properties and thickness on the stress distribution of a gear pair at the critical load position during meshing are investigated. Maps describing the maximum transverse and shear stress distributions on coating–substrate interface with respect to friction coefficient and coating thickness are demonstrated, which may facilitate the selection of preferable coating thickness.
采用 3D FFT 的数值 EIM,用于与涉及复杂分布不均匀性的光滑或粗糙表面接触
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