NDLI: Fault diagnosis of roll shape under the speed variation in hot rolling mill

Content Provider	SpringerLink
Author	Lee, Chang Woo Kang, Hyun Kyoo Shin, Kee Hyun
Copyright Year	2006
Abstract	The metal processing system usually consists of various components such like motors, work rolls, backup rolls, idle rolls, sensors, etc. Even a simple fault in a single component in the system may cause a serious damage on the final product. It is therefore necessary to diagnose the faults of the components to detect and prevent system failure. Especially, the defects in a work roll are critical to the quality of strip. It is especially difficult to detect faults of a roll by using the existing frequency analysis method if the speed of the roll is changing. In this study, a new diagnosis method for roll eccentricity under the roll speed changes was developed. The new method was induced from analyzing the rolling mechanism by using rolling force models, radius-speed relationship, and measured rolling force, etc. Simulation results by using the field data show that the proposed method is very useful.
Starting Page	1410
Ending Page	1417
Page Count	8
File Format	PDF
ISSN	1738494X
Journal	Journal of Mechanical Science and Technology
Volume Number	20
Issue Number	9
Language	English
Publisher	Korean Society of Mechanical Engineers
Publisher Date	2006-01-01
Publisher Place	Seoul
Access Restriction	Subscribed
Subject Keyword	Diagnosis Eccentricity Fast Fourier Transform (FFT) Rolling Force Roll Shape Fault Speed Variation Mechanical Engineering Vibration, Dynamical Systems, Control Industrial and Production Engineering
Content Type	Text
Resource Type	Article
Subject	Mechanical Engineering Mechanics of Materials

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