Results 1 to 10 of about 266,908 (246)

The Effect of Clamping Force and Friction Coefficient on The Clamping Clamp

open access: yesAcademic Journal of Science and Technology, 2023
 In order to study the influence of clamping force and friction coefficient on the stress distribution of drill pipe joint during the buckling process, the nonlinear contact problem and elastoplastic mechanical properties of Φ139.7mm × 9.17mm drill pipe were simulated by finite element analysis method in this paper, and the stress distribution and size
Jinfeng Li, Jianbing Zhang, Qingtao Meng
openaire   +2 more sources

A combined experimental and analytical method to determine the EHL friction force distribution between rollers and outer raceway in a cylindrical roller bearing

open access: yesFriction, 2023
Friction force is a crucial factor causing power loss and fatigue spalling of rolling element bearings. A combined experimental and analytical method is proposed to quantitatively determine the elastohydrodynamic lubrication (EHL) friction force ...
Yu Hou, Xi Wang, Di Yang, Zeliang Xiao
doaj   +2 more sources

Curious behaviour of the diffusion coefficient and friction force for the strongly inhomogeneous HMF model [PDF]

open access: yesThe European Physical Journal B, 2006
We present first elements of kinetic theory appropriate to the inhomogeneous phase of the HMF model. In particular, we investigate the case of strongly inhomogeneous distributions for $T\to 0$ and exhibit curious behaviour of the force auto-correlation ...
Antoni   +27 more
core   +3 more sources

Establishment and Numerical Analysis of Rolling Force Model Based on Dynamic Roll Gap

open access: yesApplied Sciences, 2023
Applying mathematical models and numerical methods is crucial for describing and simulating the metal cold-rolling process, wherein the accurate prediction of rolling force is an effective way to improve the quality of rolled sheets. This paper considers
Laihua Tao, Qiaoyi Wang, Huajie Wu
doaj   +1 more source

Experimental analysis on friction increment of surface textured flexible couples

open access: yesJournal of Advanced Mechanical Design, Systems, and Manufacturing, 2021
The apparent friction force of spherical convex textured rigid bodies sliding on soft materials was tested and analyzed in order to develop the technology of friction increment for frictional transmission.
Xuli ZHU   +4 more
doaj   +1 more source

Study on Vibration Friction Reducing Mechanism of Materials

open access: yesMathematics, 2022
Friction has a vital role in studying materials’ and systems’ behavior. The friction between two objects and the inner friction of materials under the condition of vibration usually can present different characteristics.
Yunnan Teng   +3 more
doaj   +1 more source

Assessment of Frictional Performance of Deep Drawing Quality Steel Sheets Used in Automotive Industry

open access: yesTechnologia i Automatyzacja Montażu, 2022
This article presents the results of tribological tests of three grades of deep-drawing quality steel sheets used in the automotive industry. The frictional properties of the sheets were anaysed using a strip drawing test.
Tomasz Trzepieciński, Ľuboš Kaščák
doaj   +1 more source

Influence of low-frequency vibration on friction coefficient of contact interface in bend-stretch forming

open access: yesInternational Journal of Lightweight Materials and Manufacture, 2022
Low-frequency vibration assisted bend-stretch forming has a good friction reduction effect due to the “surface effect” and enhances the forming ability of materials compared to traditional bend-stretch forming.
Shengfang Zhang   +4 more
doaj   +1 more source

Forming Parameters on Friction during Single Point Incremental Forming

open access: yesAdvances in Materials Science and Engineering, 2022
Friction in the single point incremental forming (SPIF) process is the main factor affecting the surface quality and forming performance of the workpiece.
Qing Xu, Zimeng Yao
doaj   +1 more source

Assessment of the Tribological Performance of Bio-Based Lubricants Using Analysis of Variance

open access: yesAdvances in Mechanical and Materials Engineering, 2023
The purpose of this article is to determine the coefficient of friction of the DC04 steel sheet using a specially designed flat die strip drawing test.
Marek Szewczyk, Krzysztof Szwajka
doaj   +1 more source

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