A Study of Bi-axial Motion Position Control Using Pneumatic Cylinder and Stepping Motor as Actuators

碩士 === 國立成功大學 === 機械工程學系碩博士班 === 90 ===   In general, pneumatic servo control system is implemented in the way of fixing pneumatic cylinder at either horizontal axis or vertical axis. This paper attempts to study bi-axial position control using a pneumatic cylinder and a stepping motor as actuators....

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Bibliographic Details
Main Authors: Chi-Ji Ho, 何啟吉
Other Authors: Ming-Chang Shih
Format: Others
Language:zh-TW
Published: 2002
Online Access:http://ndltd.ncl.edu.tw/handle/wj33fp
Description
Summary:碩士 === 國立成功大學 === 機械工程學系碩博士班 === 90 ===   In general, pneumatic servo control system is implemented in the way of fixing pneumatic cylinder at either horizontal axis or vertical axis. This paper attempts to study bi-axial position control using a pneumatic cylinder and a stepping motor as actuators.   A self-tuning fuzzy logic controller is presented. Depending on the process trend, the output scaling factor of controller is modified on-line by an real-time gain updating factor . The value of real-time gain factor is determined from a rule-base defined on error and change of error of the controlled variable. The most important point to note is that real-time gain factor is not dependent in any way, on any process parameter. The value of real-time gain factor depends only on the instantaneous process states .Hence the proposed controller is process independent.