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Practical Controller Design for Precision Positioning, Independent of Friction Characteristic by Shin-Horng Chong; Kaiji Sato is a Engineering article available to read on EtoBox.

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In this contribution, a practical controller design for non-contact mechanism and contact mechanism is discussed. The design procedure is applicable and totally independent of friction characteristic. Thus, designer does not need to consider the friction characteristic of a mechanism and it is a valuable controller approach in industry. The practical controller design procedure which based on current Nominal Characteristic Trajectory Following (NCTF) controller is proposed and improved. The NCTF controller is comprehensive, comprising of a Nominal Characteristic Trajectory (NCT) and a PI compensator, which is free from exact modeling and parameter identification. In NCTF controller design, the NCT is constructed from the open-loop responses of the mechanism. The designed input signal for open-loop experiment is needed to satisfy the following two conditions: (1) the displacement by the input signal must be smaller than the working range of the mechanism to avoid any damage to the mechanism; (2) the suitable input signal needs to produce sufficient rapid and smooth response during deceleration to satisfy the desired specifications because the response significantly influences the re

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Author

Shin-Horng Chong; Kaiji Sato

Publisher

Elsevier Science; Elsevier ; Elsevier BV (ISSN 0141-6359)

Published

2010

Language

EN

Field

Engineering (Physical Sciences)