정성종
2016-11-17T00:31:01Z
2016-11-17T00:31:01Z
2015-05
한국정밀공학회지, v. 32, NO 5, Page. 423-429
1225-9071
2287-8769
http://koreascience.or.kr/article/ArticleFullRecord.jsp?cn=JMGHBV_2015_v32n5_423
http://hdl.handle.net/20.500.11754/24408
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.
ko_KR
한국정밀공학회
마찰력 모델
헤르쯔 접촉
LM 볼가이드
구름마찰
점성마찰
Friction force model
Hertzian contact
Linear motion ball guide
Rolling friction
Viscous friction
LM 볼가이드 마찰력의 수학적 모델링
Mathematical Modeling of Friction Force in LM Ball Guides
Article
5
32
10.7736/KSPE.2015.32.5.423
423-429
한국정밀공학회지
오광제
김경호
박천홍
정성종
Oh, Kwang-Je
Khim, Gyungho
Park, Chun-Hong
Chung, Sung-Chong
2015040911
S
COLLEGE OF ENGINEERING[S]
DIVISION OF MECHANICAL ENGINEERING
schung