367 1230

LM 볼가이드 마찰력의 수학적 모델링

Title
LM 볼가이드 마찰력의 수학적 모델링
Other Titles
Mathematical Modeling of Friction Force in LM Ball Guides
Author
정성종
Keywords
마찰력 모델; 헤르쯔 접촉; LM 볼가이드; 구름마찰; 점성마찰; Friction force model; Hertzian contact; Linear motion ball guide; Rolling friction; Viscous friction
Issue Date
2015-05
Publisher
한국정밀공학회
Citation
한국정밀공학회지, v. 32, NO 5, Page. 423-429
Abstract
Linear motion (LM) ball guides have good accuracy and high efficiency. They are widely applied for precision machinery such as machine tools, semiconductor fabrication machines and robots. However, friction force incurs heat between the balls and grooves. Thermal expansion due to the heat deteriorates stiffness and accuracy of the LM ball guides. For accurate estimation of stiffness and accuracy during the linear motion, friction models of LM ball guides are required. To formulate accurate frictional models of LM ball guides according to load and preload conditions, rolling and viscous frictional analyses have been performed in this paper. Contact loads between balls and grooves are derived from Hertzian contact analysis. Contact angle variation is incorporated for the precision modeling. Viscous friction model is formulated from the shear stress of lubricant and the contact area between balls and grooves. Experiments confirm validity of the developed friction model for various external load and feedrate conditions.
URI
http://koreascience.or.kr/article/ArticleFullRecord.jsp?cn=JMGHBV_2015_v32n5_423http://hdl.handle.net/20.500.11754/24408
ISSN
1225-9071; 2287-8769
DOI
10.7736/KSPE.2015.32.5.423
Appears in Collections:
COLLEGE OF ENGINEERING[S](공과대학) > MECHANICAL ENGINEERING(기계공학부) > Articles
Files in This Item:
LM 볼가이드 마찰력의 수학적 모델링.pdfDownload
Export
RIS (EndNote)
XLS (Excel)
XML


qrcode

Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.

BROWSE