KINEMATICS AND DYNAMICS OF BALLS WHILE BEING POLISHED BETWEEN MISALIGNED DISKS IN DRIVEN SEPARATOR

The paper contains description of tool design which is used for rough polishing of balls made of brittle materials. This tool consists of top disk, which is fi-eely set on pouring bearing of the separator shaft, and a bottom disk with elastic coating. Theoretical investigations of ball kinematics ha...

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Main Authors: K. G. Schetnikovich, E. V. Karman
Format: Article
Language:Russian
Published: Belarusian National Technical University 2007-04-01
Series:Nauka i Tehnika
Online Access:https://sat.bntu.by/jour/article/view/1077
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author K. G. Schetnikovich
E. V. Karman
author_facet K. G. Schetnikovich
E. V. Karman
author_sort K. G. Schetnikovich
collection DOAJ
description The paper contains description of tool design which is used for rough polishing of balls made of brittle materials. This tool consists of top disk, which is fi-eely set on pouring bearing of the separator shaft, and a bottom disk with elastic coating. Theoretical investigations of ball kinematics have permitted to determine an angular velocity of the balls in the machining zone, value and direction oi slipping speed with respect to the tool.it has been determined that even change of the position of bail rotation instantaneous axis relative to the separator is reached at equality of angular velocities of the bottom disk and the separator. When the top disk is freely set slipping speed is equal for all the balls of the machined lot. When the top disk is stationary slipping speed is significantly increasing however its value becomes variable and depends on ball distance to separator rotation axis.The presented equations of ball dynamics in the machining zone have made it possible to detennine a cohesive force with the bottom disk, frictional forces against the top disk and separator. Recommendations on selection of machining modes at initial and final stages of ball polishing are given in the paper.
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spelling doaj.art-de1661d675db4786a45aaf9463fa4d402022-12-22T04:31:24ZrusBelarusian National Technical UniversityNauka i Tehnika2227-10312414-03922007-04-0102555910.21122/2227-1031-2007-0-2-55-591007KINEMATICS AND DYNAMICS OF BALLS WHILE BEING POLISHED BETWEEN MISALIGNED DISKS IN DRIVEN SEPARATORK. G. Schetnikovich0E. V. Karman1Belarusian National Technical UniversityBelarusian National Technical UniversityThe paper contains description of tool design which is used for rough polishing of balls made of brittle materials. This tool consists of top disk, which is fi-eely set on pouring bearing of the separator shaft, and a bottom disk with elastic coating. Theoretical investigations of ball kinematics have permitted to determine an angular velocity of the balls in the machining zone, value and direction oi slipping speed with respect to the tool.it has been determined that even change of the position of bail rotation instantaneous axis relative to the separator is reached at equality of angular velocities of the bottom disk and the separator. When the top disk is freely set slipping speed is equal for all the balls of the machined lot. When the top disk is stationary slipping speed is significantly increasing however its value becomes variable and depends on ball distance to separator rotation axis.The presented equations of ball dynamics in the machining zone have made it possible to detennine a cohesive force with the bottom disk, frictional forces against the top disk and separator. Recommendations on selection of machining modes at initial and final stages of ball polishing are given in the paper.https://sat.bntu.by/jour/article/view/1077
spellingShingle K. G. Schetnikovich
E. V. Karman
KINEMATICS AND DYNAMICS OF BALLS WHILE BEING POLISHED BETWEEN MISALIGNED DISKS IN DRIVEN SEPARATOR
Nauka i Tehnika
title KINEMATICS AND DYNAMICS OF BALLS WHILE BEING POLISHED BETWEEN MISALIGNED DISKS IN DRIVEN SEPARATOR
title_full KINEMATICS AND DYNAMICS OF BALLS WHILE BEING POLISHED BETWEEN MISALIGNED DISKS IN DRIVEN SEPARATOR
title_fullStr KINEMATICS AND DYNAMICS OF BALLS WHILE BEING POLISHED BETWEEN MISALIGNED DISKS IN DRIVEN SEPARATOR
title_full_unstemmed KINEMATICS AND DYNAMICS OF BALLS WHILE BEING POLISHED BETWEEN MISALIGNED DISKS IN DRIVEN SEPARATOR
title_short KINEMATICS AND DYNAMICS OF BALLS WHILE BEING POLISHED BETWEEN MISALIGNED DISKS IN DRIVEN SEPARATOR
title_sort kinematics and dynamics of balls while being polished between misaligned disks in driven separator
url https://sat.bntu.by/jour/article/view/1077
work_keys_str_mv AT kgschetnikovich kinematicsanddynamicsofballswhilebeingpolishedbetweenmisaligneddisksindrivenseparator
AT evkarman kinematicsanddynamicsofballswhilebeingpolishedbetweenmisaligneddisksindrivenseparator