Performance comparison of pd-type fuzzy logic controller of USBM simplified model

Universal Stretch and Bending Machine (USBM) is a combination of Stretch Machine and Bending Machine which are used in car door sash production. The main purpose of combining these two machines is to reduce the number of machines, space utilization and increase productivity. This paper basically focuses on the design and modeling for revolute control of USBM simplified model. Basically, comparative evaluation of intelligent control (Fuzzy Logic Controller) systems that suites the USBM simplified model are evaluated. The evaluation is done by comparing the PD–type FLC performance of different fuzzy rules and membership functions in terms of time response and integral square error. Prior to that, mathematical model of the system is first derived and verified by SIMULINK (MATLAB). Based on the simulation result, PD-type FLC with 5 membership function is better than PD-type FLC with 7 membership function in terms of time response specifications and integral square error.

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