Abstract
The purpose of performing this project is to control the single-jointed flexible arm, controlled with the fuzzy method. The major part of this research is to prove the superiority of fuzzy controllers to classic controllers, and distinctively proportion integral derivative (PID). The problem of modeling and controlling the flexible single-jointed arm has fascinated researchers since 1980, and different control methods have been utilized so far, among which fuzzy controller have fascinated lots of researchers because of its high stability and adaptability.