Abstract

Issues about the robust machining process control are discussed. Firstly the problem for robust machining process control is formulated. Then, a robust machining process controller is designed by using a linear matrix inequality (LMI) based approach, and a fuzzy logic inference mechanism is introduced to adjust the controller according to the online measurements of operating variables which define the operating conditions or operating points of the processes. The simulation results of a design example (an end milling process control) shows that robust stability an satisfactory performance have been achieved.

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