...Zhenwen Cheng; Li Zu; Mingcai Xing; Changguang Zhou; Yang Xu; Zishuo Hao The eccentric errors of planetary roller screw mechanism (PRSM) affect the contact kinematic characteristics and exacerbate the cumulative wear of thread pairs, which will reduce its transmission accuracy and reliability...

...Yang Xu; Shuo Wu; Robert L. Jackson The random process model, also known as the multi-asperity contact model or statistical model, is one of the dominant methodologies for analyzing the contact between nominally flat rough surfaces. In 1975, Bush, Gibson, and Thomas developed a complete random...

... of oil leakage can cause significant financial and reputational damage. Previous investigations have shown that leakage does mostly occur with shaft seals equipped with a contacting dust lip. Consequently, it is assumed, that the build up of negative pressure between dust and the main lip plays a role...

...Xuxin Guo; Daxin Liu; Zhenyu Liu; Jianrong Tan The height probability distribution (HPD) of random rough surface topography has significant effect on its contact behaviors. In this paper, an optimization model to calculate the optimal HPD of random rough surface topography to make its contact force...

... evolution characteristics of thread surfaces for convex–concave contact and convex–straight contact were captured by incorporating updated axial clearances originated from accumulated thread wear, which provides a new perspective to predict the wear process of PRSM. The results show that the wear depth...

...Zhixiang Zhao; Xi Wang; Yu Hou Roller skew in roller bearings can cause heat generation in roller–race and roller–rib contacts, thus reducing bearing life. It is significant to obtain the roller skew angle in situ for guiding the bearing design and adjusting the operating conditions. In this study...

...Shuangbiao Liu; Nicole Dorcy; Q. Jane Wang; Yip-Wah Chung; Stephen Berkebile Deterministic contact modeling based on half-space theories has satisfied a wide range of applications. However, the half-space theories themselves do not involve shape effects of roughness on Green’s functions/influence...

...Kanza Basit; Hamza Shams; Muhammad Ali Khan; Asif Mansoor This paper proposes a simplistic approach toward estimating incremental wear in a multi-contact scenario using a vibrational analysis approach and in turn goes a step forward to model its associated sound. Predicted wear depth and frictional...

...Shengnan Zhang; Ming Yan; Yushi Wang A methodology is proposed to study the interplay between tooth wear and contact fatigue under elastohydrodynamic lubrication condition. The modeling methodology includes the influence of contact fatigue on wear and the influence of wear on contact fatigue. First...

...Ina Stratmann; Jannik Goersch; Moritz Neuser; Christian Schindler; Tanja Stratmann The contact zone between two steel components can be identified by utilizing a pressure measurement film in the contact between them. To reduce the number of necessary experiments, it is possible to simulate...

... produces metal oxides, which are likely to increase the electrical resistance at the contact interface. This research aims to reduce metal oxidation of electrical connectors by studying the tribological performance of various thicknesses of tin and copper layers with a designated electrical circuit...

...Shuyun Jiang; Yongjin Zhu Axial static stiffness is a main technical indicator for the ball screw feed drive system, and the elastic deformation outside the Hertz contact zone of the system affects its axial static stiffness. However, the influence of elastic deformation outside the Hertz contact...

... 08 03 2022 22 03 2022 adhesion contact friction sliding stick-slip Central China Normal University 10.13039/501100005234 2021QN11082 National Natural Science Foundation of China 10.13039/501100001809 52105231 The multi-rope friction hoist uses...

... in the J ournal of T ribology . 05 11 2021 24 01 2022 24 01 2022 28 02 2022 PTFE/PEEK composite composite microstructure PTFE morphology apparent PTFE friction coefficient friction mechanisms mechanism-based friction theory contact dry friction interface...

... investigations, a new energy-based torque distribution model is established in the present study. In the proposed model, numerous affecting parameters, including the connector compression work, effective bearing radius, effective thread contact radius, and spiral angle are considered. Then a parameterized thread...

... roughness, on the sealing performance, is evaluated. Generally, it was found that for a given load, as the radius of the edge decreases, the maximum contact pressure increases, and the sealing performance improves. In addition, a lower surface roughness yielded better sealing for a given load. Surprisingly...

...Huijie Zhang; Shuhai Liu The tribological properties of proppant particle sliding on shale rock determine the shale gas production. This work focuses on investigating the impacts of sliding speed on the coefficient of friction (COF) and wear of the silica ball–shale rock contact, which...

... which causes surface roughening of the tools and deterioration of deep drawn products. In this article, an adhesive wear model based on a deterministic approach is developed to predict the galling behavior in a deep drawing process. The model uses the surface topography, material properties and contact...

...X. M. Liang; Y. Ding; Y. Duo; W. K. Yuan; G. F. Wang In this paper, an incremental equivalent contact model is developed for elastic-perfectly plastic solids with rough surfaces. The contact of rough surface is modeled by the accumulation of circular contacts with varying radius, which is estimated...

...Arman Ahmadi; Farshid Sadeghi In this investigation, a three-dimensional (3D) finite element model (FEM) was developed to study fretting wear of Hertzian circular and line contacts. The wear law incorporated in this model is based on the accumulated dissipated energy (ADE). A stress-based damage...