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Accurate Positioning with a Pneumatic Driving Apparatus
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  • Journal title : Journal of Drive and Control
  • Volume 12, Issue 4,  2015, pp.21-27
  • Publisher : Korea Society of Fluid Power & Construction Equipments
  • DOI : 10.7839/ksfc.2015.12.4.021
 Title & Authors
Accurate Positioning with a Pneumatic Driving Apparatus
Jang, Ji Seong;
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 Abstract
The accurate position control of pneumatic driving apparatus is considered in this paper. In pneumatically actuated positioning systems, accurate positioning as an electrical servo has been known to be difficult because of the friction force and compressibility of the air. For good control performance of the pneumatic system, an actuator mounted with externally pressurized air bearings is produced to compensate for friction force. For the controller design, the governing equation of the pneumatic driving apparatus is derived. In order to reduce the nonlinear characteristics of the control valve, linearized control input is derived from the relation between the effective area of the valve and the control input. The experimental results are presented to show the results of the improved position control of the pneumatic driving apparatus.
 Keywords
Air Bearing;Nonlinearity;Friction Force;Position Control;
 Language
Korean
 Cited by
 References
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