Method for compensating irregularities caused by roll eccentrici

Details Method for compensating irregularities caused by roll eccentrici Method for compensating irregularities caused by roll eccentrici

1990-10-25

1992-01-07

Larson, Lowell A.

Metal deforming

With use of control means energized in response to activator...

Metal deforming by use of roller or roller-like tool element

72 16, 72 20, 364472, B21B 3712, G06F 1546

Patent

active

050779974

ABSTRACT:
A method and an arrangement for regulating the thickness of rolled strip utilizing the gauge meter method and for compensating irregularities caused by roll eccentricities, wherein the size of the roll gap, the rolling force and the stand modulus are taken into consideration. The method includes separating a disturbance signal due to the eccentricities of rolls from an actual rolling force signal, identifying the disturbance signal obtained in this manner by determining its transmission function, subsequently computing the regulating parameters in dependence upon the determined disturbance signal transmission function and with the aid of a regulating synthesis method. A compensation signal is determined from the disturbance signal and the corresponding regulating parameters in an adaptive regulator for compensating the irregularities due to eccentricities. The compensation signal is introduced in a position regulating circuit.

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patent: 4545228 (1985-10-01), Yamaguti et al.
patent: 4648257 (1987-03-01), Oliver et al.
patent: 4685063 (1987-08-01), Weihrich et al.
patent: 4691547 (1987-09-01), Teoh et al.
patent: 4910985 (1990-03-01), Ballyns

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