Title :
Computer Analysis of the Static Stiffness of SCR DC Feed Drives Used on NC Machine Tools
Author :
Nieniewski, Mariusz J. ; Bollinger, John G.
Abstract :
It is shown that the SCR dc feed drive stiffness depends upon the torque and speed of the motor. In particular, changing from continuous to discontinuous conduction in the armature circuit has a significant effect upon the drive stiffness. Analytic expressions for both static and dynamic stiffnesses are derived, and computer-calculated diagrams of the static stiffness are presented. The digital computer programs calculating the drive stiffness are described.
Keywords :
Computer numerical control; DC motors; Drives; Equations; Feeds; Industry Applications Society; Machine tools; Thyristors; Torque; Velocity control;
Journal_Title :
Industry Applications, IEEE Transactions on
DOI :
10.1109/TIA.1979.4503697
