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A new nonlinear dynamic model of the rotor bearing system

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Energies | Free Full-Text | Nonlinear Coupled Dynamics of a Rod Fastening Rotor under Rub-Impact and Initial Permanent Deflection | HT

A nonlinear coupled dynamic model of a rod fastening rotor under rub-impact and initial permanent deflection was developed in this ... The studies indicate that the coupled dynamic responses of the rod fastening rotor bearing system under rub-impact and initial ...

Dynamic Behavior Analysis of a Rotor System Based on a Nonlinear Labyrinth-Seal Forces Model | Journal of Computational and Nonlinear Dynamics .

... the motion equations of the rotor-bearing-labyrinth seal system are derived. By means of spectrum cascades, bifurcation diagrams ... H. , Niu, H. Q. , Song, R. Z. , and Wen, B. C. , 2013, “ Nonlinear Dynamic Analysis of a Rotor-Bearing-Seal System Under Two ...

Research Article Dynamic Characteristics Analysis of the Coupled Lateral-Torsional Vibration with Spur Gear Syst

Research Article Dynamic Characteristics Analysis of the Coupled Lateral-Torsional Vibration with Spur Gear System ... F : Dynamic model of spur gear rotor bearing system. gearsandinput/outputterminal,respectively.Inaddition, (=1 41 and 2 1 and 2 ...

Buckling and Vibration of a Long Shaft Rotor System with a Stabilized Bearing | International Journal of Structural Stability and Dynami

Based on the dynamic theory of flexible multi-body systems, a nonlinear dynamic model is established of a long shaft rotor system with a stabilized elastic bearing located along ...

A new nonlinear dynamic model of the rotor-bearing system considering preload and varying contact angle of the bearing - ScienceDire

A new nonlinear dynamic model of the rotor-bearing system is proposed. • Bearing preload and variation of contact angle are considered in the present model. • Node of bearing contact angle is found under the action of bearing moment. • Combination responses are ...

Nonlinear Dynamics of Flexible Rotors Supported on Journal Bearings—Part II: Numerical Bearing Model | Journal of Tribology | ASME

The nonlinear stability of a flexible rotor-bearing system supported on finite length journal bearings is addressed. A perturbation method of the Reynolds lubrication equation is presented to calculate the bearing nonlinear dynamic coefficients, a treatment that is ...

A New Rotor-Ball Bearing-Stator Coupling Dynamics Model for Whole Aero-Engine Vibration | Journal of Vibration and Acoustics | ASME

In this paper, a new rotor-ball bearing-stator coupling system dynamics model is established for simulating the practical whole aero-engine vibration. ... Chen, G., Li, C. G., and Wang, D. Y., 2008, “Nonlinear Dynamic Analysis and Experiment Verification of Rubbing ...

Bifurcation Characteristics of Unbalanced Rotor - Bearing Syst

Dynamic model of nonlinear rotor—bearing system is set up using the modified Capone bearing forces models. And the nonlinear dynamics behavior of unbalanced rotor—bearing systems was studied. The system state trajectories, Poincare maps, are also ...

Nonlinear model identification of oil-lubricated tilting pad bearin

model was used to show the nonlinear dynamic behavior in a simple rotor-bearing system. Those obtained nonlinear motions have been studied by the phase portrait, journal trajectory and Poincare maps. They concluded that the proposed nonlinear modeling of ...

Nonlinear Dynamic Response of Cylindrical Roller Bearing–Rotor System with 9 Degree of Freedom Model Having a Combined Localized Defect at Inner .

ABSTRACTThis article presents a nonlinear dynamic model for a cylindrical roller bearing–rotor system with interaction forces between the inner race, outer race, and roller. Roller–race contacts are modeled predicting nonlinear stiffness (Hertz contact theory) and ...

Numerical Solution of High-Dimensional Nonlinear Rotor-Bearing Dynamic System with Precise Integrati

Send Orders for Reprints to [email protected] 264 The Open Mechanical Engineering Journal, 2014, 8, 264-269 1874-155X/14 2014 Bentham Open Open Access Numerical Solution of High-Dimensional Nonlinear Rotor-Bearing Dynamic System ...

Nonlinear Dynamic Analysis and Experiment Verification of Rotor-Ball Bearings-Support-Stator Coupling System for Aeroengine ...- ASME

In this paper, a new rotor-ball bearings-support-stator coupling system dynamic model with rubbing coupling faults is established for practical aeroengine. In the model, the rubbing fault is modeled, the stator motion is considered, the flexible support and squeeze film ...

Study on Nonlinear Dynamic Response of an Unbalanced Rotor Supported on Ball Beari

... a new nonlinear dynamic model of an unbalance rotor supported on ball bearings is established, in which not only the rotor unbalance, bearing ...

终稿 Nonlinear dynamic characteristics of a flexible rotor

Nonlinear dynamic characteristics of a flexible rotor system with local rub-impact H. Ma1, X. Y. Tai1, H. L. Yi2, ... In order to study the rub-impact fault efficiently, a mathematical model of the rotor-bearing system, which is depicted in Fig. 1, is simplified(a) The ...

A new nonlinear force model to replace the Hertzian contact model in a rigid-rotor ball bearing system | SpringerLi

A new nonlinear force model based on experimental data is proposed to replace the classical Hertzian contact model to solve the fractional index nonlinearity in a ball bearing ...

Nonlinear dynamic model of a gear-rotor-bearing system considering the flash temperature - ScienceDire

Nonlinear dynamic model of a gear-rotor-bearing system considering the flash temperature Author links open overlay panel Xiangfeng Gou a b c Lingyun Zhu a c Changjun Qi c ...

(PDF) Nonlinear dynamic analysis of a rotor-bearing-seal system under two loading conditions | 辉 马 - Academia.e

Nonlinear dynamic analysis of a rotor-bearing-seal system under two loading conditions Hui Ma n ... Based on an unsteady oil-film force proposed by Zhang and Muszynska seal force model, Li et al. [27,28] established a new ...

Nonlinear Dynamic Characteristics of Marine Rotor-Bearing System under Heaving Moti

In this paper, the influence of the heaving motion on the nonlinear dynamic behavior of the rotor-bearing system is considered. First, a mathematic model of the marine rotor-bearing system is developed on the short bearing theory in the noninertial reference system ...

A new nonlinear dynamic model of the rotor-bearing system considering preload

Abstract A great deal of research work has been done on the dynamic behaviors of the rotor-bearing system. However, the important effects of load and variation of contact angle on the bearing performance have not been focused on sufficiently. In this paper, a five ...

State Space Formulation of Nonlinear Vibration Responses Collected from a Dynamic Rotor-Bearing System: An Extension of Bearing Diagnostics to .

from a dynamic rotor-bearing system was designed to intelligently estimate the bearing’s RUL. That is, a state space model of the BHI was constructed to mathematically track the health evolutions of the ...