Stochastic modeling of friction force and vibration analysis of a mechanical system using the model
- Title
- Stochastic modeling of friction force and vibration analysis of a mechanical system using the model
- Author
- 유홍희
- Keywords
- Coulomb friction model; Friction-induced vibration; Friction oscillator; Stochastic friction model
- Issue Date
- 2015-09
- Publisher
- KOREAN SOC MECHANICAL ENGINEERS
- Citation
- JOURNAL OF MECHANICAL SCIENCE AND TECHNOLOGY, v. 29, NO 9, Page. 3645-3652
- Abstract
- The squeal noise generated from a disk brake or chatter occurred in a machine tool primarily results from friction-induced vibration. Since friction-induced vibration is usually accompanied by abrasion and lifespan reduction of mechanical parts, it is necessary to develop a reliable analysis model by which friction-induced vibration phenomena can be accurately analyzed. The original Coulomb's friction model or the modified Coulomb friction model employed in most commercial programs employs deterministic friction coefficients. However, observing friction phenomena between two contact surfaces, one may observe that friction coefficients keep changing due to the unevenness of contact surface, temperature, lubrication and humidity. Therefore, in this study, friction coefficients are modeled as random parameters that keep changing during the motion of a mechanical system undergoing friction force. The integrity of the proposed stochastic friction model was validated by comparing the analysis results obtained by the proposed model with experimental results.
- URI
- https://link.springer.com/article/10.1007/s12206-015-0808-4http://hdl.handle.net/20.500.11754/27642
- ISSN
- 1738-494X; 1976-3824
- DOI
- 10.1007/s12206-015-0808-4
- Appears in Collections:
- COLLEGE OF ENGINEERING[S](공과대학) > MECHANICAL ENGINEERING(기계공학부) > Articles
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