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Rotor Vibration Characteristics Considering Nonlinear Stiffness of Spigot Bolts
PurposeIn this paper, the spigot bolted connection structure is taken as the research object, and its nonlinear stiffness characteristics are...
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Research for the bearing fit effect on the vibration characteristics of spindle rotor-bearing system
Spindle bearing fits mainly include interference fit of inner ring and clearance fit of outer ring, which directly affect the vibration...
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Vibration characteristics of multi-acoustic metamaterials rotor with geometrical nonlinearity
A theoretical research on the vibration characteristics of the multi-acoustic metamaterials rotor with the weak and strong geometrical nonlinearities...
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Vibration characteristics investigation of a dual rotor-bearing outer ring–pedestal-casing system with clearance fit
Due to thermal expansion of the mechanical structure, assembly processes, bearing wear, and long-term vibration during operation, a clearance fit may...
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Research on the vibration characteristics and performance optimization of the rotor-shaft system of an unbalanced permanent magnet synchronous motor
Research on the vibration characteristics of the permanent magnet synchronous motor (PMSM) is hindered by the harmonic characteristics of the...
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Effect of static and dynamic misalignment of rolling bearing on nonlinear vibration characteristics of rotor system
In the research on rolling bearing misalignment, the influence of bearing misalignment on the vibration characteristics of the rotor system is rarely...
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Aerodynamics and vibration analysis of a helicopter rotor blade
A computational model is developed to obtain a helicopter rotor blade's vibration characteristics and aerodynamic behavior. A mathematical model of...
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Modeling and vibration characteristics analysis of a DMF rotor system
To analyze the vibration response of a rotor system with circumferential short spring dual mass flywheel (DMF) when the primary flywheel speed...
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Vibration analysis of a gear-rotor-bearing system with outer-ring spalling and misalignment
Misalignment and spalling of bearing rings are typical errors and faults that significantly influence the vibration characteristics of a...
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Experimental and numerical study of lateral vibration of a rotor–stator rubbing system
In this paper, lateral vibration of a rotating system with rotor–stator rubbing is investigated experimentally and numerically. An experimental study...
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Online active vibration control for the magnetic suspension rotor using least mean square and polynomial fitting
Magnetic bearings are widely used in fields such as fluid machinery, aerospace, and marine vessels due to their properties of non-mechanical contact....
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Nonlinear vibration and stability analysis of a dual-disk rotor-bearing system under multiple frequency excitations
This paper aims to investigate the nonlinear vibration characteristics and stability of a dual-disk rotor-bearing system under multi-frequency...
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Coupling Dynamic Characteristics Analysis of a Dual-Rotor Aeroengine
Aiming at the typical dual aeroengine with inter-shaft bearing, the dual-rotor dynamic analysis model was established. The dynamic characteristics...
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Vibration analysis of rotor systems with bearing clearance using a novel conformal contact model
This paper proposes a novel cylindrical conformal contact model for the large-diameter bearing with small clearance to its housing in aero-engines....
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Nonlinear Vibration Analysis of a Twin-Spool Rotor Through a Nonlinear Galerkin Reduced Model
PurposeThis work investigates the nonlinear vibration and dynamical behavior of a twin-spool rotor assembly supported by ball-bearings and squeezed...
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Vibration Characteristics of Rotor System with Loose Disc Caused by the Insufficient Interference Force
The rotating parts looseness is one of the common failures in rotating machinery. The current researches of looseness fault mainly focus on...
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A Modified Iterative Learning Control Approach for the Active Suppression of Rotor Vibration Induced by Coupled Unbalance and Misalignment
This paper proposes a modified iterative learning control (MILC) periodical feedback-feedforward algorithm to reduce the vibration of a rotor caused...
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Research on Vibration Response of Aero-Engine Rotor with SFD Under Vertical Impact Load
Considering the squeeze film damper (SFD) nonlinear oil film force, the differential equation of motion of an aero-engine rotor was established. The...
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Stability, bifurcation, and vibration control of a discontinuous nonlinear rotor model under rub-impact effect
This work aims to investigate the stability, bifurcation, and vibration control of a discontinuous dynamical model simulating the nonlinear...
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Parametric Optimization of BNES in Torsional Vibration Suppression of Rotor Systems
This investigation presents an optimal design of a bi-stable nonlinear energy sink (BNES), which is used to suppress the torsional vibration of the...