Hydraulic servo cylinders are widely used in versatile industrial applications such as machine tools, industrial robots, autonomous manufacturing systems and special applications in laboratories. To reduce friction and allow smooth and controllable displacement of the actuator, hydrostatic journal bearings are used at the ends of the rod. The design and manufacturing of this elements is challenging since the good operation relays on the very small tolerances required to bear the load on the cylinder and to reduce leakages. In this work, a virtual design and test tool for hydrostatic journal bearing with pockets, developed in OpenModelica environment, is presented. The influence of eccentricity and manufacturing tolerances is then studied and discussed. The model proposed has the aim to explore the extreme and critical operating conditions of the servo-cylinder and to help and/or improve the design phase.

Modelling of hydrostatic bearings for servo-cylinders / Zardin, B.; Natali, E.; Cillo, G.; Borghi, M.. - 2191:(2019), p. 020156. (Intervento presentato al convegno 74th Conference of the Italian Thermal Machines Engineering Association, ATI 2019 tenutosi a Department of Engineering "Enzo Ferrari" of the University of Modena and Reggio Emilia, ita nel 2019) [10.1063/1.5138889].

Modelling of hydrostatic bearings for servo-cylinders

Zardin B.
;
Natali E.
;
Cillo G.
;
Borghi M.
2019

Abstract

Hydraulic servo cylinders are widely used in versatile industrial applications such as machine tools, industrial robots, autonomous manufacturing systems and special applications in laboratories. To reduce friction and allow smooth and controllable displacement of the actuator, hydrostatic journal bearings are used at the ends of the rod. The design and manufacturing of this elements is challenging since the good operation relays on the very small tolerances required to bear the load on the cylinder and to reduce leakages. In this work, a virtual design and test tool for hydrostatic journal bearing with pockets, developed in OpenModelica environment, is presented. The influence of eccentricity and manufacturing tolerances is then studied and discussed. The model proposed has the aim to explore the extreme and critical operating conditions of the servo-cylinder and to help and/or improve the design phase.
2019
74th Conference of the Italian Thermal Machines Engineering Association, ATI 2019
Department of Engineering "Enzo Ferrari" of the University of Modena and Reggio Emilia, ita
2019
2191
020156
Zardin, B.; Natali, E.; Cillo, G.; Borghi, M.
Modelling of hydrostatic bearings for servo-cylinders / Zardin, B.; Natali, E.; Cillo, G.; Borghi, M.. - 2191:(2019), p. 020156. (Intervento presentato al convegno 74th Conference of the Italian Thermal Machines Engineering Association, ATI 2019 tenutosi a Department of Engineering "Enzo Ferrari" of the University of Modena and Reggio Emilia, ita nel 2019) [10.1063/1.5138889].
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11380/1190359
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