Dynamic Characteristics of Rotors on Passive and Active Thrust Fluid-film Bearings with Fixed Pads
Application of fluid-film bearings in rotor machines in many cases could have no alternative due to obvious advantages when compared to roller element bearings. Integration of information technology in mechanical engineering resulting in emergence of a new field of research – mechatronic bearings wh...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
| Published: |
EDP Sciences
2018-01-01
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| Series: | MATEC Web of Conferences |
| Online Access: | https://doi.org/10.1051/matecconf/201814811003 |
| _version_ | 1818865725587062784 |
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| author | Babin Alexander Savin Leonid Majorov Sergey |
| author_facet | Babin Alexander Savin Leonid Majorov Sergey |
| author_sort | Babin Alexander |
| collection | DOAJ |
| description | Application of fluid-film bearings in rotor machines in many cases could have no alternative due to obvious advantages when compared to roller element bearings. Integration of information technology in mechanical engineering resulting in emergence of a new field of research – mechatronic bearings which allowed tracking condition of the most important parts of a machine and adjusting operational parameters of the system. Application of servo valves to control the flow rate through a fluid-film bearing is the most universal and simple way of rotor’s position control due to relative simplicity of modelling and absence of need to radically change the design of conventional hydrodynamic bearings. In the present paper numerical simulations of passive (conventional as opposed to mechatronic) and active hybrid thrust fluid-film bearings with a central feeding chamber are presented, that are parts of a mechatronic rotor-bearing node. Numerical model of an active thrust bearing is based on solution of equations of hydrodynamics, rotor dynamics and an additional model of a servo valve. Various types of control have been investigated: P, PI and PID control, and the dynamic behaviour of a system has been estimated under various loads, namely static, periodic and impulse. A design of a test rig has been proposed to study passive and active thrust fluid-film bearings aimed at, among other, validation of numerical results of active bearings simulation. |
| first_indexed | 2024-12-19T10:52:07Z |
| format | Article |
| id | doaj.art-695077d415ae4888b42b3bf78feb1cfb |
| institution | Directory Open Access Journal |
| issn | 2261-236X |
| language | English |
| last_indexed | 2024-12-19T10:52:07Z |
| publishDate | 2018-01-01 |
| publisher | EDP Sciences |
| record_format | Article |
| series | MATEC Web of Conferences |
| spelling | doaj.art-695077d415ae4888b42b3bf78feb1cfb2022-12-21T20:24:57ZengEDP SciencesMATEC Web of Conferences2261-236X2018-01-011481100310.1051/matecconf/201814811003matecconf_icoev2018_11003Dynamic Characteristics of Rotors on Passive and Active Thrust Fluid-film Bearings with Fixed PadsBabin AlexanderSavin LeonidMajorov SergeyApplication of fluid-film bearings in rotor machines in many cases could have no alternative due to obvious advantages when compared to roller element bearings. Integration of information technology in mechanical engineering resulting in emergence of a new field of research – mechatronic bearings which allowed tracking condition of the most important parts of a machine and adjusting operational parameters of the system. Application of servo valves to control the flow rate through a fluid-film bearing is the most universal and simple way of rotor’s position control due to relative simplicity of modelling and absence of need to radically change the design of conventional hydrodynamic bearings. In the present paper numerical simulations of passive (conventional as opposed to mechatronic) and active hybrid thrust fluid-film bearings with a central feeding chamber are presented, that are parts of a mechatronic rotor-bearing node. Numerical model of an active thrust bearing is based on solution of equations of hydrodynamics, rotor dynamics and an additional model of a servo valve. Various types of control have been investigated: P, PI and PID control, and the dynamic behaviour of a system has been estimated under various loads, namely static, periodic and impulse. A design of a test rig has been proposed to study passive and active thrust fluid-film bearings aimed at, among other, validation of numerical results of active bearings simulation.https://doi.org/10.1051/matecconf/201814811003 |
| spellingShingle | Babin Alexander Savin Leonid Majorov Sergey Dynamic Characteristics of Rotors on Passive and Active Thrust Fluid-film Bearings with Fixed Pads MATEC Web of Conferences |
| title | Dynamic Characteristics of Rotors on Passive and Active Thrust Fluid-film Bearings with Fixed Pads |
| title_full | Dynamic Characteristics of Rotors on Passive and Active Thrust Fluid-film Bearings with Fixed Pads |
| title_fullStr | Dynamic Characteristics of Rotors on Passive and Active Thrust Fluid-film Bearings with Fixed Pads |
| title_full_unstemmed | Dynamic Characteristics of Rotors on Passive and Active Thrust Fluid-film Bearings with Fixed Pads |
| title_short | Dynamic Characteristics of Rotors on Passive and Active Thrust Fluid-film Bearings with Fixed Pads |
| title_sort | dynamic characteristics of rotors on passive and active thrust fluid film bearings with fixed pads |
| url | https://doi.org/10.1051/matecconf/201814811003 |
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