International Journal of Precision Engineering and Manufacturing
- Volume 2 Issue 1
- /
- Pages.11-17
- /
- 2001
- /
- 2234-7593(pISSN)
- /
- 2005-4602(eISSN)
Fuzzy Logic Modeling and Control for Drilling of Composite Laminates ; Simulation
- Chung, Byeong-Mook (School of mechanical engineering, Yeungnam University, Gyongsan, South Korea) ;
- Ye Sheng (Department of mechanical engineering, University of California, Berkeley, USA) ;
- Masayoshi Tomizuka (Department of mechanical engineering, University of California, Berkeley, USA)
- Published : 2001.04.01
Abstract
In drilling of composite laminates, it is important to minimize of reduce occurrences of delaminations. In particular, a peel -up delamination at entrance and push-up delamination at exit are common. Deleaminations may by avoided by regulating the drill thrust force can be controlled by adjusting the feedrate of the drill. Dynamics involved in drilling of composite laminates is time varying and nonlinear. In this paper, a fuzzy logic model and control strategy are proposed. Simulation results show that the fuzzy model can describe the nonlinear time-varying process well. The fuzzy controller realizes a fast rise time and a little overshoot of drilling force.