نتایج جستجو برای: joint coefficient of friction

تعداد نتایج: 21186165  

2016
Ali Anvari

In this paper, by applying analytical method and using experimental method data, the effect of sliding velocity on friction coefficient for contact of copper with copper is investigated. Some equations for obtaining friction coefficient as a function of sliding velocity for contact of copper with copper by applying second analytical method and using experimental method data are achieved. The re...

Journal: :journal of computational and applied research in mechanial engineering - jcarme 0
l. ramamohan reddy department of mathematics, mekapati rajamohan reddy institute of technology and science, udayagiri, nellore district, a.p, india m. c. raju department of humanities and sciences, annamacharya institute of technology and sciences (autonomous), rajampet – 516126, a.p., india g. s. s. raju department of mathematics, jntua college of engineering pulivendula, pulivendula, a.p, india s. m. ibrahim department of mathematics, gitam university, vishakhaptanam, a.p. - 530045 india

the paper aims at investigating the effects of chemical reaction and thermal radiation on the steady two-dimensional laminar flow of viscous incompressible electrically conducting micropolar fluid past a stretching surface embedded in a non-darcian porous medium. the radiative heat flux is assumed to follow rosseland approximation. the governing equations of momentum, angular momentum, energy, ...

پایان نامه :دانشگاه آزاد اسلامی - دانشگاه آزاد اسلامی واحد شاهرود - دانشکده مهندسی شیمی 1389

on this project we try to calculated power of hydrogen on dycarbonil compound in different ways ; the first way is shoster way , for sain power of hydrogen notice the different power between central conforms on it and main conform that’s didn’t have hydrogen joint . or in other way different of energy between open and close form. second way, is average way? this is for way that studied conf...

Journal: :علوم و تکنولوژی پلیمر 0
مهدی رزاقی کاشانی رسول اسمعیلی نیسیانی

coeffcient of  friction  (cof)  for  rubber parts  is one of  the key parameters in their interaction with solid rough surfaces (micrometer to millimeter scales),  such  as  tire-road  interactions. cof  of  rubber  depends  on  viscoelastic properties of rubber, roughness characteristics of the counter-part surface, and process variables such as contact nominal pressure and sliding speed. due ...

Journal: :journal of modern processes in manufacturing and production 2013
zahra moghadami ali mehdi pour omrani

babbitt is a white silvery alloy that composed of tin, lead, copper and antimony. this alloy is the most current bearing alloy in industrial applications. the characteristics of this alloy, such as high wearing resistance and low coefficient of friction, have converted it into a bearing cover. the target of this study is investigation on the effects of alloy elements on wearing and micro-struct...

Journal: :journal of agricultural science and technology 2011
n. aghajani e. ansaripour m. kashaninejad

in this article, the size, dimensions, volume, bulk and particle densities, empyting and filling angles of repose and friction coefficients against different surfaces were evaluated for two varieties of barley, sahra and valfajr, as a function of moisture content in the range of 10.12 to 42.17 (w.b.%). most physical properties of barley varieties were significantly affected by moisture content ...

1992
Ayman Farahat

The purpose of this paper is 40 investigate quasi-static dextrous manlpulatlon using Cfunctions and stability functions and motion mode functions.In particular we consider the planning problem where we start with an object in an initia! grasp configuration and attempt to find a joint trajectory to manipulate the object to a desired configuration. A central theme in this paper is the presumed la...

Journal: :journal of modern processes in manufacturing and production 0
hossein nouri hosseinabadi department of engineering, mechanical department, najafabad branch, islamic azad university, najafabad, iran masoud farahnakian department of engineering, mechanical department, najafabad branch, islamic azad university, najafabad, iran

nowadays the surface texturing has been widely recognized as a usable capability to improve the tribological systems. in this paper, ultrasonic assisted turning (uat) isperformed to create the micro textures on the flat faces. micro surface texturing ismade on the al7075-t6 by the uat in the face turning process. then, the influences of cutting speed feed, vibration direction and vibration ampl...

Journal: :Proceedings of the Institution of Mechanical Engineers. Part H, Journal of engineering in medicine 2007
P Theobald C Byrne S F Oldfield D Dowson M Benjamin C Dent N Pugh L D M Nokes

Fat pads are masses of encapsulated adipose tissue located throughout the human body. Whilst a number of studies describe these soft tissues anatomically little is known about their biomechanics, and surgeons may excise them arthroscopically if they hinder visual inspection of the joint or bursa. By measuring the coefficient of friction between, and performing Sommerfeld analysis of, the surfac...

Journal: :IOP Conference Series: Materials Science and Engineering 2019

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