当前位置: X-MOL 学术Proc. Inst. Mech. Eng. Part J J. Eng. Tribol. › 论文详情
Our official English website, www.x-mol.net, welcomes your feedback! (Note: you will need to create a separate account there.)
Study on temperature rise distribution of contact surface under cyclic load
Proceedings of the Institution of Mechanical Engineers, Part J: Journal of Engineering Tribology ( IF 2 ) Pub Date : 2020-04-16 , DOI: 10.1177/1350650120919877
Ling Li 1 , Haifei Tian 1 , Qiangqiang Yun 1 , Wei Chu 1
Affiliation  

A large amount of heat is generated during the friction of joint surfaces, which has a significant influence on the contact characteristics of surfaces, causing deformation or failure of key components. A two-dimensional friction-thermal structure coupling contact model of cylinder/plane was established in ABAQUS. The effects of roughness under different fractal parameters, tangential load amplitude and cycle number on the temperature rise distribution of a contact surface under normal cyclic loading were studied. The results show that with the increase of roughness and tangential load amplitude, the area of thermal effect becomes more obvious and the temperature rise of the contact surface increases. It is also found that the heat affected zone is mainly distributed near the surface of the contact area with a high-temperature field generated, while the temperature rise amplitude decreases gradually along the depth direction. In addition, the contact surface nodes have a similar temperature rise distribution process and the farther away from the contact center (x = 0.3 mm), the smaller the temperature rise, which is consistent with the simulation results of the published literature. For the same tangential load amplitude, the surface temperature rise amplitude under the normal cyclic load is lower than that of the normal constant load. The temperature rise of the surface increases with the increase of the number of fretting cycles.

中文翻译:

循环载荷作用下接触面温升分布研究

接合面摩擦时会产生大量热量,对表面的接触特性有显着影响,导致关键部件变形或失效。在ABAQUS中建立了圆柱/平面二维摩擦-热结构耦合接触模型。研究了不同分形参数下的粗糙度、切向载荷幅值和循环次数对法向循环载荷作用下接触面温升分布的影响。结果表明,随着粗糙度和切向载荷幅值的增加,热效应面积变得更加明显,接触面的温升增加。还发现热影响区主要分布在产生高温场的接触区表面附近,而温升幅度沿深度方向逐渐减小。此外,接触面节点具有相似的温升分布过程,离接触中心越远(x=0.3 mm),温升越小,这与已发表文献的模拟结果一致。在切向载荷幅值相同的情况下,正常循环载荷下的表面温升幅值低于正常恒载荷下的表面温升幅值。表面的温升随着微动循环次数的增加而增加。温升越小,与已发表文献的模拟结果一致。在切向载荷幅值相同的情况下,正常循环载荷下的表面温升幅值低于正常恒载荷下的表面温升幅值。表面的温升随着微动循环次数的增加而增加。温升越小,与已发表文献的模拟结果一致。在切向载荷幅值相同的情况下,正常循环载荷下的表面温升幅度低于正常恒载荷下的表面温升幅度。表面的温升随着微动循环次数的增加而增加。
更新日期:2020-04-16
down
wechat
bug