Pneumatic Servo Bearing Actuator for Ultraprecise Positioning (1st Report)
نویسندگان
چکیده
منابع مشابه
Pneumatic Servo Bearing Actuator for Ultraprecise Positioning – Part 1: Principle and Basic Performance
Tomoko Hirayama, Takakazu Kitagawa, Masato Kadotani, Hiroki Danjyo, Takashi Matsuoka1, Katsumi Sasaki2 and Hiroshi Yabe3 Department of Mechanical Engineering, Doshisha University 1-3 Miyakodani, Tatara, Kyotanabe, Kyoto, Japan Pneumatic Servo Controls Ltd. 2266-22 Anagahora, Shimo-Shidami, Moriyama-ku, Nagoya, Aichi, Japan Department of Mechanical Engineering, Kyoto University (former affiliati...
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INTRODUCTION Externally pressurized gas-lubricated thrust bearings (aerostatic bearings) keep the bearing clearance constant under a constant supply pressure. We investigated how controlling the supply pressure with an electro-pneumatic servovalve can be used to dynamically adjust the bearing gap height. As a result of our investigation, we developed an electropneumatic servo-actuator “pneumati...
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Pneumatic servo actuators are characterized by highly nonlinear dynamics from spool valve command to cylinder pressure, and as such are well suited to the use of nonlinear control methods requiring measurement of the full state, such as sliding mode control. This paper investigates the possibility of eliminating the pressure measurement required for nonlinear control in lieu of a nonlinear pres...
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Development of automation and robotization in manufacturing process stimulates interest in pneumatic servo-systems whose advantages include low manufacturing costs, high dynamics and reliability (Situm et al., 2004). Unsatisfactory positioning accuracy of multiaxis pneumatic servosytems considerably reduces their application in manipulating machines, manipulators and robots. Rapid advance in pa...
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ژورنال
عنوان ژورنال: Journal of the Japan Society for Precision Engineering
سال: 2008
ISSN: 1882-675X,0912-0289
DOI: 10.2493/jjspe.74.1086