Title:
METHOD FOR ACCELERATING AND DECELERATING INDUSTRIAL MACHINE
Document Type and Number:
Japanese Patent JP2001290541
Kind Code:
A
Abstract:
To suppress residual vibration that is generated in a machine base by placing a controlled object in operation when the controlled object is installed on he machine base with low rigidity.
The acceleration/deceleration time of a speed command is equalized to a time nT0 (n=0, 1, 2 ...) which is an integral multiple of a natural vibration period T0=2π/ω determined by the total mass of the machine base and a servomotor and the spring constant of the machine base. Denoting the acceleration time of the speed command as nT0, the response D (t) of a vibration component block (ω2/(s2+ω2) when t>ta becomes 0 as shown by D (t)= α0(cos(ω(t+ta))-cos(ωt) =ω0(cos(ω(t-nT0)-cos(ωt))=0.
Inventors:
TOMITA KOJI
WATANABE JUNICHI
CHO BUNNO
TSURUTA KAZUHIRO
WATANABE JUNICHI
CHO BUNNO
TSURUTA KAZUHIRO
Application Number:
JP2000109300A
Publication Date:
October 19, 2001
Filing Date:
April 11, 2000
Export Citation:
Assignee:
YASKAWA ELECTRIC CORP
International Classes:
G05B19/416; G05D13/62; (IPC1-7): G05D13/62; G05B19/416
Attorney, Agent or Firm:
Nobuyuki Kaneda (2 others)