Emotional Learning Based Intelligent Controller for MIMO Peripheral Milling Process

Autor: Arash Bahari Kordabad, Mehrdad Boroushaki
Jazyk: angličtina
Rok vydání: 2020
Předmět:
Zdroj: Journal of Applied and Computational Mechanics, Vol 6, Iss 3, Pp 480-492 (2020)
Druh dokumentu: article
ISSN: 2383-4536
DOI: 10.22055/jacm.2019.30188.1696
Popis: During the milling process, one of the most important factors in reducing tool life expectancy and quality of workpiece is the chattering phenomenon due to self-excitation. The milling process is considered as a MIMO strongly coupled nonlinear plant with time delay terms in cutting forces. We stabilize the plant using two independent Emotional Learning-based Intelligent Controller (ELIC) in parallel. Control inputs are considered as forces Ux and Uy in two directions x and y, which are applied by the piezoelectrics. The ELIC consists of three elements; Critic, TSK controller and the learning element. The results of the ELIC have been compared with a Sliding Mode Controller (SMC). The simulation for the nominal plant shows better performance of the ELIC in IAE and ITSE values at least 86% in the x-direction and 79% in the y-direction. Similar simulation for an uncertain plant also shows an improvement of at least 89% in the x-direction and 97% in the y-direction.
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