ABNORMAL VIBRATION DETECTION METHOD FOR ROLLING MILL, ABNORMALITY DETECTION DEVICE, ROLLING METHOD, AND METHOD FOR MANUFACTURING METAL STRIP

WIPO Patent Application WO/2022/209295

A1

The present invention prevents erroneous detection due to noise and the like generated from equipment in the vicinity of a rolling mill, and detects abnormal vibration accurately.　This abnormal vibration detection method for a rolling mill comprises: a collection step for collecting vibration data about the rolling mill; a frequency analysis step for generating first analysis data by performing a frequency analysis on the vibration data; a principal component analysis step for using reference data specified in advance on the basis of a normal state as a principal component to perform a principal component analysis on the first analysis data, and generating evaluation data, which is the projection of the first analysis data onto the reference data; and an abnormal vibration detection step for extracting a deviation component from the evaluation data and the first analysis data, and detecting an abnormality of the rolling mill from the extracted deviation component.

BABA WATARU (JP)
YAJIMA MASAHIDE (JP)
HIRATA TAKEHIDE (JP)
TAKASHIMA YUKIO (JP)

PCT/JP2022/004545

October 06, 2022

February 04, 2022

Click for automatic bibliography generation  

JFE STEEL CORP (JP)

B21C51/00; B21B38/00; G01H17/00; G01M99/00

JP2013010110A	2013-01-17
JP2020104133A	2020-07-09
JPS629709A	1987-01-17
JPH08108205A	1996-04-30
JP2016153138A	2016-08-25
JP2016002582A	2016-01-12

RYU TAKAHIRO ET AL.: "Polygonal Deformation Phenomena of Backup Rolls of Steel Making Machine", THE JAPAN SOCIETY OF MECHANICAL ENGINEERS [NO. 01-5] DYNAMICS AND DESIGN CONFERENCE 2001 CD-ROM

KUMASAKA Akira et al. (JP)

View/Download PDF      PDF Help

Previous Patent: METHOD FOR DETECTING ABNORMAL VIBRATION IN ROLLING MILL, ABNORMALITY DETECTION DEVICE, ROLLING METHO...

Next Patent: EMPATHY MEASUREMENT METHOD