Filter Design of Adjusting Common Phase for Vibration Suppression Control of Multi-Degree-of Freedom System

In flexible structures such as a stacker crane, vibration is generated by the high acceleration of the traveling axis in the load transportation slider. Vibration suppression is necessary for productivity improvement. We utilized the acceleration feedback control for vibration suppression. The flexi...

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Bibliographic Details
Published inInternational journal of automation technology Vol. 12; no. 4; pp. 565 - 572
Main Authors Hamamatsu, Hiroshi, Tachibana, Toshiyuki, Hitaka, Yasunobu, Furuno, Seiji, Matsuo, Takayuki, Futami, Shigeru
Format Journal Article
LanguageEnglish
Published Tokyo Fuji Technology Press Co. Ltd 01.07.2018
Subjects
Control systems
Cranes
Feedback control
Filter design (mathematics)
Flexible structures
High acceleration
Operational amplifiers
Vibration control
Vibration mode
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Summary:In flexible structures such as a stacker crane, vibration is generated by the high acceleration of the traveling axis in the load transportation slider. Vibration suppression is necessary for productivity improvement. We utilized the acceleration feedback control for vibration suppression. The flexible structure has several natural vibration modes of varying phase, and vibration suppression is difficult by the simple feedback control. The second mode is excited by the simple feedback control for the vibration suppression of the first mode when the phase between the first mode and the second mode are different, e.g., a flexible structure. This paper proposes a filter design by adjusting the common phase for the feedback control. The filter using the operational amplifier reverses the phase of the second mode and such that it is the same as the first mode. The effect of vibration suppression is verified by the experiment.
ISSN:1881-7629
1883-8022
DOI:10.20965/ijat.2018.p0565