Fuzzy Control of One-Dimensional Precision Mechanical Systems with Stick-Slip Friction
| Autor: | Ter-Ming Kuo, 郭德明 |
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| Rok vydání: | 1993 |
| Druh dokumentu: | 學位論文 ; thesis |
| Popis: | 81 This study considers the application of fuzzy control to rigid and flexible mechanical systems with stick-slip friction in order that the systems have precise positioning and trajectory- following performance. The design of a fuzzy control system need not fully rely on the mathematical model of the plant. Usually, control engineers design the fuzzy control rules based only on the heuristic knowledge about the plant. Thus it is very suitable for the control of complex or highly uncertain systems. This thesis first introduces the fuzzy control theory and friction theory, then considers a fuzzy controller with "two input-one output" and "three input-one output" respectively, for the rigid and flexible mechanical systems, and chooses suitably the membership functions and fuzzy control rules for generating the suitable control signals to achieve the control purposes. And the computer simulation results show that the proposed fuzzy controllers have very good performances and precision for the positioning and track- ing of the systems considered. In the precise positioning of rigid systems, this thesis also considers the comparison between the perfor- mances of the fuzzy control strategy and those of the traditional nonlinear friction compensation. The computer simulation results also show that the performances of the fuzzy control case are better. |
| Databáze: | Networked Digital Library of Theses & Dissertations |
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