391 880

볼스크류 너트부의 강성 모델링과 불확도 해석

Title
볼스크류 너트부의 강성 모델링과 불확도 해석
Other Titles
Modeling and Uncertainty Analysis of Ballscrew Nut Stiffness
Author
정성종
Keywords
볼스크류; 접촉각; 헤르쯔 접촉; 강성; 불확도; Ballscrew; Contact angle; Hertzian contact; Stiffness; Uncertainty
Issue Date
2015-05
Publisher
한국정밀공학회
Citation
한국정밀공학회지, v. 32, NO 5, Page. 415-422
Abstract
Ballscrews are important motion transfer and positioning units of industrial machinery and precision machines. Positioning accuracy of the feed drive system depends upon axial stiffness of ballscrew systems. As the nut stiffness depends upon preload and operating conditions, analytical modeling of the stiffness is performed through the contact and body deformation analysis. For accurate contact analysis, the contact angle variation between balls and grooves is incorporated in the developed model. To verify the developed mathematical stiffness model, experiments are conducted on the test-rig. Through the uncertainty analysis according to GUM (Guide to the expression of Uncertainty in Measurement), it is confirmed that the formulated stiffness model has over 85% estimation accuracy. After constructing the ballscrew DB, a quick turnaround system for the nut stiffness estimation has been developed in this research.
URI
http://koreascience.or.kr/article/ArticleFullRecord.jsp?cn=JMGHBV_2015_v32n5_415http://hdl.handle.net/20.500.11754/24409
ISSN
1225-9071; 2287-8769
DOI
10.7736/KSPE.2015.32.5.415
Appears in Collections:
COLLEGE OF ENGINEERING[S](공과대학) > MECHANICAL ENGINEERING(기계공학부) > Articles
Files in This Item:
볼스크류 너트부의 강성 모델링과 불확도 해석.pdfDownload
Export
RIS (EndNote)
XLS (Excel)
XML


qrcode

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

BROWSE