Results 1 to 10 of about 2,651,640 (305)

Comparative study on the sealing performance of packer rubber based on elastic and hyperelastic analyses using various constitutive models

open access: yesMaterials Research Express, 2022
Evaluation of the sealing performance of the packer rubber varies according to specific simulation models. This paper aims at revealing the difference between elastic and hyperelastic analyses using the finite element mothed (FEM). The study extracts the
Xuelin Dong, Zhiyin Duan
doaj   +1 more source

Non-Hertzian Elastohydrodynamic Contact Stress Calculation of High-Speed Ball Screws

open access: yesApplied Sciences, 2021
In order to eliminate the calculation error of the Hertzian elastohydrodynamic contact stress due to the asymmetry of the contact region of the helix raceway, a non-Hertzian elastohydrodynamic contact stress calculation method based on the minimum excess
Tiewei Sun   +3 more
doaj   +1 more source

Effect of Dual Reinforcement on Wear Resistance by Aluminum Compacts Reinforce by SiC, Al2O3 [PDF]

open access: yesEngineering and Technology Journal, 2009
The producing composite materials of dual reinforcement in which the matrix material is aluminum reinforced with two types of ceramic particles : which are Alumina (50μmKeywordscomposite materials; wear test ; Al2O3; SiC ...
Mohammed Waheed, Hassan Abed
doaj   +1 more source

ANALYSIS OF SELECTED SOLUTIONS AND METHODS TO LIMIT THE UNEVEN LOAD DISTRIBUTION ON THE TOOTH WIDTH [PDF]

open access: yesScientific Journal of Silesian University of Technology. Series Transport, 2017
This article is dedicated to the subject of gearboxes, with a specific focus on the load distribution on the tooth. The aim of the study was to review the selected solutions and methods that can contribute to aligning the load on the width of the tooth ...
Michał JUZEK, Grzegorz WOJNAR
doaj   +1 more source

Selection of worm gearing optimal structure for machine rotary table

open access: yesDiagnostyka, 2021
In this paper, the design of the machine rotary table with a kinematic worm gearing is research. A three-dimensional model of the rotary table assembly structure and the stress-strain state of the worm by the finite element method are researched ...
Oleg Krol, Volodymyr Sokolov
doaj   +1 more source

Study on the 2D Equivalent Simulation Model of Bearing and Spindle for Precision Machine Tools

open access: yesMachines, 2023
Precision spindle and bearings are the key components in precision machine tools. These structures greatly affect the machining accuracy and service life of the machine tools.
Shijun Xiu   +4 more
doaj   +1 more source

Contact Pressures and Stresses [PDF]

open access: yesProceedings of the Institution of Mechanical Engineers, 1921
n ...
Coker, Ernest George   +2 more
openaire   +1 more source

A contact stress capacity model for cylindrical wormsets [PDF]

open access: yesFME Transactions, 2022
A contact stress capacity expression is derived for cylindrical worm sets by considering the worm as a helical rack mating with a helical gear. The concept of the equivalent spur gear for a helical gear defined by the instantaneous radius of curvature in
Osakue Edward E., Anetor Lucky
doaj   +1 more source

Sheared force-networks: anisotropies, yielding and geometry [PDF]

open access: yes, 2005
A scenario for yielding of granular matter is presented by considering the ensemble of force networks for a given contact network and applied shear stress $\tau$.
F. Radjai   +6 more
core   +3 more sources

FFT-Based Methods for Computational Contact Mechanics

open access: yesFrontiers in Mechanical Engineering, 2020
Computational contact mechanics seeks for numerical solutions to contact area, pressure, deformation, and stresses, as well as flash temperature, in response to the interaction of two bodies.
Q. Jane Wang   +5 more
doaj   +1 more source

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