Experimental study on the stiffness improvement of a cylinder type pneumatic actuator for a control valve

Takashi Yoshihara, Sunao Kawai, Yukio Kawakami, Yukio Terashima

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Pneumatic systems are widely used to drive a control valve in many kinds of process plant. In this paper, we propose a pneumatic system: this is composed of a cylinder type pneumatic actuator and a PWM (Pulse Width Modulation) positioner, because it is necessary to improve the performance for a control valve. The positioner has four on-off valves; they are controlled by a PWM mode. Examinations of the system are as follows. First, we show that it is possible to improve the characteristics of the control valve by adopting PWM method. Second, we indicate the main parameters that influence the performance especially the dynamic stiffness - of the system by linearizing basic equations and showing block diagram. Final, we show that the performance of the proposed system is better than traditional one.

Original languageEnglish
Title of host publicationProceedings of the 3rd International Symposium on Fluid Power Transmission and Control (ISFP'99)
EditorsW. Zuwen, H. Junwei, L. Songjing, X. Yaoming, Z. Manlin, W. Zuwen, H. Junwei, L. Songjing, X. Yaoming, Z. Manlin
Pages442-447
Number of pages6
Publication statusPublished - 1999 Dec 1
EventProceedings of the 3rd International Symposium on Fluid Power Transmission and Control (ISFP'99) - Harbin, China
Duration: 1999 Sep 71999 Sep 9

Publication series

NameProceedings of the 3rd International Symposium on Fluid Power Transmission and Control (ISFP'99)

Conference

ConferenceProceedings of the 3rd International Symposium on Fluid Power Transmission and Control (ISFP'99)
CountryChina
CityHarbin
Period99/9/799/9/9

Keywords

  • Cylinder
  • Frequency bandwidth
  • PWM positioner
  • Stability limit
  • Stiffness

ASJC Scopus subject areas

  • Engineering(all)

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  • Cite this

    Yoshihara, T., Kawai, S., Kawakami, Y., & Terashima, Y. (1999). Experimental study on the stiffness improvement of a cylinder type pneumatic actuator for a control valve. In W. Zuwen, H. Junwei, L. Songjing, X. Yaoming, Z. Manlin, W. Zuwen, H. Junwei, L. Songjing, X. Yaoming, & Z. Manlin (Eds.), Proceedings of the 3rd International Symposium on Fluid Power Transmission and Control (ISFP'99) (pp. 442-447). (Proceedings of the 3rd International Symposium on Fluid Power Transmission and Control (ISFP'99)).