Nonlinear dynamic analysis of a rotor-bearing system with porous tilting pad bearing support
Sign Up to like & getrecommendations! Published in 2018 at "Nonlinear Dynamics"
DOI: 10.1007/s11071-018-4431-7
Abstract: Porous tilting pad bearings (PTPBs) show a potential for using in high-speed, high precision rotating machinery that requires high bearing stiffness and good stability. In this study, the nonlinear characteristics of a rotor supported on… read more here.
Keywords: system; porous tilting; tilting pad; rotor ... See more keywords
Dynamic modeling for rigid rotor bearing systems with a localized defect considering additional deformations at the sharp edges
Sign Up to like & getrecommendations! Published in 2017 at "Journal of Sound and Vibration"
DOI: 10.1016/j.jsv.2017.03.007
Abstract: Abstract Rotor bearing systems (RBSs) play a very valuable role for wind turbine gearboxes, aero−engines, high speed spindles, and other rotational machinery. An in−depth understanding of vibrations of the RBSs is very useful for condition… read more here.
Keywords: additional deformations; sharp edges; localized defect; bearing systems ... See more keywords
Nonlinear analysis of a rotor-bearing system using describing functions
Sign Up to like & getrecommendations! Published in 2018 at "Journal of Sound and Vibration"
DOI: 10.1016/j.jsv.2018.01.018
Abstract: Abstract This paper presents a technique for modelling the nonlinear behavior of a rotor-bearing system with Hertzian contact, clearance, and rotating unbalance. The rotor-bearing system is separated into linear and nonlinear components, and the nonlinear… read more here.
Keywords: bearing system; rotor bearing; clearance;
Vibration and stability analysis of rotor-bearing-pedestal system due to clearance fit
Sign Up to like & getrecommendations! Published in 2019 at "Mechanical Systems and Signal Processing"
DOI: 10.1016/j.ymssp.2019.106275
Abstract: Abstract Rotor-bearing-pedestal systems are key components of rotating machinery. In this paper, a dynamic model of rotor-bearing-pedestal system is proposed to investigate the vibration characteristics and stability due to fit clearance. Considering the fit clearance… read more here.
Keywords: rotor; system; rotor bearing; bearing pedestal ... See more keywords
Application of an improved discretisation method for the rotor-bearing assembly in the radiated noise analysis using Riccati transfer matrix method
Sign Up to like & getrecommendations! Published in 2017 at "Iet Electric Power Applications"
DOI: 10.1049/iet-epa.2017.0107
Abstract: An improved discretisation method relative to the geometric dimensions of the rotor-bearing system in the calculation of its critical speeds using the transfer matrix method (TMM) is introduced to enhance the computation precision. This work… read more here.
Keywords: discretisation method; analysis; method; improved discretisation ... See more keywords
Detection of a slant crack in a rotor bearing system during shut-down
Sign Up to like & getrecommendations! Published in 2020 at "Mechanics Based Design of Structures and Machines"
DOI: 10.1080/15397734.2019.1707686
Abstract: Abstract The transient response of a slant-cracked rotor system during shut-down has been analyzed while it is decelerating through the critical speed. Vibration response has been simulated by using finite element method (FEM) for flexural… read more here.
Keywords: system shut; rotor; rotor bearing; slant crack ... See more keywords
Hybrid composite shaft of High-Speed Rotor-Bearing System - A rotor dynamics preview
Sign Up to like & getrecommendations! Published in 2020 at "Mechanics Based Design of Structures and Machines"
DOI: 10.1080/15397734.2020.1841003
Abstract: Abstract In this present study, the detailed rotor dynamic evaluation of hybrid composite material rotating shaft of a power turbine high-speed rotor-bearing system is presented. The slender power turbine shaft of front driving turboshaft engine… read more here.
Keywords: shaft; rotor; bearing system; material ... See more keywords
Dynamic analysis of rotor-bearing system by considering the transverse crack on rotor
Sign Up to like & getrecommendations! Published in 2017 at "European Journal of Computational Mechanics"
DOI: 10.1080/17797179.2017.1354577
Abstract: Abstract In this study, a new improved theoretical model of rotor-bearing system has been presented to analyse the behaviour of the system due to the transverse crack on the rotor. Firstly, a mathematical model of… read more here.
Keywords: crack rotor; system; rotor; transverse crack ... See more keywords
Effect of a transverse crack on the dynamic behaviours of a 3D rod-fastening rotor bearing system
Sign Up to like & getrecommendations! Published in 2020 at "Industrial Lubrication and Tribology"
DOI: 10.1108/ilt-05-2020-0189
Abstract: Purpose This paper aims to examine the dynamic behaviours of a three-dimensional (3D) rod-fastening rotor bearing system (RFBS) with a crack in a fastening rod. Design/methodology/approach Based on the 3D finite element method model and… read more here.
Keywords: system; dynamic behaviours; bearing system; rotor bearing ... See more keywords
Nonlinear Dynamic Analysis of Rotor-Bearing-Pedestal Systems With Multiple Fit Clearances
Sign Up to like & getrecommendations! Published in 2020 at "IEEE Access"
DOI: 10.1109/access.2020.2971326
Abstract: Dynamic analysis of a rotor-bearing-pedestal system with multiple bearing clearances is conducted in this study. Firstly, Jones-Harris method is used to deduce the equivalent nonlinear support stiffness of angular contact high-speed ball bearing with preload… read more here.
Keywords: rotor; dynamic analysis; system; bearing pedestal ... See more keywords
Multiscale Deep Graph Convolutional Networks for Intelligent Fault Diagnosis of Rotor-Bearing System Under Fluctuating Working Conditions
Sign Up to like & getrecommendations! Published in 2023 at "IEEE Transactions on Industrial Informatics"
DOI: 10.1109/tii.2022.3161674
Abstract: The rotor-bearing system is widely used in various high-end electro-hydraulic equipment, which provides specific support, rotation, and other integral functions. However, the fluctuating working conditions of the rotor-bearing system will cause more significant disordered fluctuations… read more here.
Keywords: bearing system; graph; rotor bearing;