A Simplified Model for the On-Line Identification of Bearing Direct-Dynamic Parameters Based on Algebraic Identification (AI)

Saulo Jesús Landa-Damas, Jorge Colín-Ocampo (), Andrés Blanco-Ortega, Arturo Abúndez-Pliego, José Gabriel Mendoza-Larios, Luis Alberto Baltazar-Tadeo and Demetrio Pérez-Vigueras
Additional contact information
Saulo Jesús Landa-Damas: Departamento de Ingeniería Mecánica, Tecnológico Nacional de México/CENIDET, Cuernavaca 62490, Morelos, Mexico
Jorge Colín-Ocampo: Departamento de Ingeniería Mecánica, Tecnológico Nacional de México/CENIDET, Cuernavaca 62490, Morelos, Mexico
Andrés Blanco-Ortega: Departamento de Ingeniería Mecánica, Tecnológico Nacional de México/CENIDET, Cuernavaca 62490, Morelos, Mexico
Arturo Abúndez-Pliego: Departamento de Ingeniería Mecánica, Tecnológico Nacional de México/CENIDET, Cuernavaca 62490, Morelos, Mexico
José Gabriel Mendoza-Larios: Instituto de Ingeniería Industrial y Automotriz, Universidad Tecnológica de la Mixteca, Huajuapan de León 69000, Oaxaca, Mexico
Luis Alberto Baltazar-Tadeo: UPIIP/Instituto Politécnico Nacional, Palenque 29960, Chiapas, Mexico
Demetrio Pérez-Vigueras: Departamento de Ingeniería Mecánica, Tecnológico Nacional de México/CENIDET, Cuernavaca 62490, Morelos, Mexico

Mathematics, 2023, vol. 11, issue 14, 1-23

Abstract: In this paper, a mathematical model is presented to identify the direct dynamic coefficients ( k xx , k zz , c xx , c zz ) of a pressurized bearing in a rotor-bearing system. The presented mathematical model for online identification is the result of the application of the algebraic identification approach to a two-degree-of-freedom rotor-bearing model. The proposed identification model requires only the vibration response as the input data. The performance of the model was assessed by theoretically and experimentally testing the proposed identifier at different shaft frequencies and, for the experimental test, a pressurized bearing that has hydrodynamic and hydrostatic characteristics at a support pressure of 10 psi was considered. The working fluid is Chevron GST 32 oil. The results show negligible differences between the vibration response of the experimental rotor and those obtained numerically using the identified direct dynamic coefficients of the pressurized bearing. In addition, it is observed that the algebraic identifier determines the identified parameters in a time less than 0.2 s. The proposed identifier can be used in other types of bearings, which is a great advantage over other identifiers.

Keywords: journal bearings; pressurized bearings; algebraic identification; rotodynamic coefficients; vibrations; finite elements (search for similar items in EconPapers)
JEL-codes: C (search for similar items in EconPapers)
Date: 2023
References: View references in EconPapers View complete reference list from CitEc
Citations:

Downloads: (external link)
https://www.mdpi.com/2227-7390/11/14/3131/pdf (application/pdf)
https://www.mdpi.com/2227-7390/11/14/3131/ (text/html)

Related works:
This item may be available elsewhere in EconPapers: Search for items with the same title.

Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text

Persistent link: https://EconPapers.repec.org/RePEc:gam:jmathe:v:11:y:2023:i:14:p:3131-:d:1194789

Access Statistics for this article

Mathematics is currently edited by Ms. Emma He

More articles in Mathematics from MDPI
Bibliographic data for series maintained by MDPI Indexing Manager ().