Investigation of the cause of the chatter and physical behavior of a work roll in compact endless rolling
| Autor: | Seong Wook Cho, Jea-Sook Chung, Dong Kyu Lee, Jin Su Kang, Jiwoo Nam |
|---|---|
| Rok vydání: | 2017 |
| Předmět: |
0209 industrial biotechnology
Work roll Engineering business.industry Mechanical Engineering Numerical analysis Work (physics) Process (computing) 02 engineering and technology Structural engineering Industrial and Manufacturing Engineering Computer Science Applications Process conditions Vibration Mechanism (engineering) 020303 mechanical engineering & transports 020901 industrial engineering & automation 0203 mechanical engineering Control and Systems Engineering Lubrication business Software |
| Zdroj: | The International Journal of Advanced Manufacturing Technology. 94:4459-4467 |
| ISSN: | 1433-3015 0268-3768 |
| Popis: | Mechanical devices that contain many rotating elements such as rolling mills inevitably generate vibrations. Vibrations not only cause unnecessary loads but also affect the quality of the manufactured product. Therefore, it is important to identify the causes of vibration in such mechanical devices and control them appropriately. In this study, the various causes of vibration in a rolling process were investigated, and the vibration types present in a compact endless-rolling mill (CEM) process were analyzed and compared. Three typical causes of vibration were analyzed. Based on these results, the cause of the vibrations that occur during changes in the processing conditions in a CEM can be inferred. More specifically, numerical analysis was conducted to study the physical behavior of work rolls (WRs) according to changes in the rolling process conditions. Using these analysis results, a mechanism to produce vibrations similar to those occurring in a CEM was proposed. The results of tracking the center position of a work roll showed that the direct effects of contact pressure on vibration were minimal, and changes in the lubrication type for the physical interaction between a WR and the contact strip were identified as a cause of vibration. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|
Full text from SpringerLink