Explicit modeling and investigation of friction torques in double-nut ball screws for the precision design of ball screw feed drives
- Authors
- Oh, Kwang-Je; Cao, Lei; Chung, Sung-Chong
- Issue Date
- Jan-2020
- Publisher
- ELSEVIER SCI LTD
- Keywords
- Axial load; Ball screw; Explicit friction torque model; Preload
- Citation
- TRIBOLOGY INTERNATIONAL, v.141, pp.1 - 16
- Indexed
- SCIE
SCOPUS
- Journal Title
- TRIBOLOGY INTERNATIONAL
- Volume
- 141
- Start Page
- 1
- End Page
- 16
- URI
- https://scholarworks.bwise.kr/hanyang/handle/2021.sw.hanyang/11429
- DOI
- 10.1016/j.triboint.2019.105841
- ISSN
- 0301-679X
- Abstract
- Explicit friction torque model composed of an applied load and viscous friction terms is formulated for two-point contact double-nut ball screws. Precision friction torque test rig is developed to verify the model. Forward and reverse direction measurements show a small friction difference due to the asymmetric nut geometry. Experiments confirm the friction prediction accuracy of 89%. Although a large axial load is applied to a ball screw, a lower and smoother friction torque is obtained by a proper preload selection through the developed model. It is also applicable as a thermal boundary condition for the finite element analysis. Efficient, smooth and accurate feed systems are obtained through the optimization of ball screw design parameters by minimizing the friction model.
- Files in This Item
-
Go to Link
- Appears in
Collections - 서울 공과대학 > 서울 기계공학부 > 1. Journal Articles
Items in ScholarWorks are protected by copyright, with all rights reserved, unless otherwise indicated.