...Zhe Wu; Yuying Zhang; Yang Xu; Desuan Jie; Robert L. Jackson The flash temperature in the sliding frictional contact between micro asperities has an important influence on the frictional characteristics of advanced functional ceramics. In this paper, the elastic sliding frictional contact of single...

...Zhao Zhixiang; 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...

...Tieneng Guo; Hao Shi; Ruguo Ji; Bo Li; Chenhang Wang In practice, it is difficult to avoid the axis angle deviation when some regular surfaces are in micro-sliding, such as gears, machined surfaces, etc. In order to better investigate the micro-motion contact characteristics, a crossed paraboloidal...

...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...

... value, the friction force and friction coefficient were the smallest, the adhesive friction contact was the smallest, and the vibration amplitude increased sharply. This is the most dangerous situation for friction systems. The fully sliding critical value is of great significance to the anti-skidding...

... was used to measure the tangential (frictional) force exerted on the test samples. The average temperature of the sliding contact surface was monitored with a thermocouple located at 3.175 mm (0.125 in.) beneath the sliding contact surface. Load cell, LVDT, and thermocouple signals were collected during...

... 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...

... in sliding distance and load increases the wear loss of the composites, and conversely, the increase in both the sliding velocity and CaO content decreases the composite’s wear loss by the formation of protective oxide layer formation at the contact surface of the pin. Fig. 5 Main effect plot...

...S. Sudhagar; Lokavarapu Bhaskara Rao This study was performed to measure the extent of wear of unlubricated spur gears on the involute tooth. Contacts that roll and slide normally undergo wear. When material removal occurs due to surface wear from the gear profile, the surface pressure in the gear...

...G. F. Wang; X. M. Liang; D. Yan The accurate calculation of the real contact area between rough surfaces is a key issue in tribology. In this paper, based on the geometrical information of total contact area and the number of contact patches with respect to surface separation, a new method...