TY - GEN
T1 - Analysis and measurement of the dynamic motions of a large-scale rotating roll workpiece
AU - Lee, Jung Chul
AU - Gao, Wei
AU - Shimizu, Yuki
AU - Ito, So
AU - Hwang, Jooho
AU - Oh, Jeong Seok
AU - Park, Chun Hong
PY - 2012/1/1
Y1 - 2012/1/1
N2 - This paper describes the analysis and measurement of the dynamic motions of a large-scale rotating roll workpiece, which is used for a large-scale lathe, under the gravity condition. A dynamic model which includes the gravity effect was first established. In order to investigate the behavior which comes from stiffness differences of the journal bearing at the headstock and the tailstock, a spring-mass-damper system was also established. In addition to the simulations, the behavior of the rotating roll workpiece was investigated with respect to the different rotating speed. In the experiment, a mirror finished hollow type roll workpiece with a diameter of 320 mm, a length of 1800 mm, a weight of about 340 kg was fabricated by a large-scale lathe. Five capacitive type displacement sensors were mounted on the sensor holders which were arranged along the axis of rotation of the spindle. The behavior measurement was carried out at 5 sections of the roll workpiece along the axial direction. The rotating speed was set to be 5, 50, 100, 150, 200, 250 and 300 rpm. The dynamic model for the analysis with simulations and the measurement result of the behavior of a rotating roll workpiece according to the different rotating speed are presented in this paper.
AB - This paper describes the analysis and measurement of the dynamic motions of a large-scale rotating roll workpiece, which is used for a large-scale lathe, under the gravity condition. A dynamic model which includes the gravity effect was first established. In order to investigate the behavior which comes from stiffness differences of the journal bearing at the headstock and the tailstock, a spring-mass-damper system was also established. In addition to the simulations, the behavior of the rotating roll workpiece was investigated with respect to the different rotating speed. In the experiment, a mirror finished hollow type roll workpiece with a diameter of 320 mm, a length of 1800 mm, a weight of about 340 kg was fabricated by a large-scale lathe. Five capacitive type displacement sensors were mounted on the sensor holders which were arranged along the axis of rotation of the spindle. The behavior measurement was carried out at 5 sections of the roll workpiece along the axial direction. The rotating speed was set to be 5, 50, 100, 150, 200, 250 and 300 rpm. The dynamic model for the analysis with simulations and the measurement result of the behavior of a rotating roll workpiece according to the different rotating speed are presented in this paper.
KW - Measurement
KW - Roll workpiece
KW - Rotating roll
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U2 - 10.4028/www.scientific.net/KEM.523-524.847
DO - 10.4028/www.scientific.net/KEM.523-524.847
M3 - Conference contribution
AN - SCOPUS:84870617561
SN - 9783037855096
T3 - Key Engineering Materials
SP - 847
EP - 852
BT - Emerging Technology in Precision Engineering XIV
PB - Trans Tech Publications Ltd
T2 - 14th International Conference on Precision Engineering, ICPE 2012
Y2 - 8 November 2012 through 10 November 2012
ER -