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On modeling and damage detection methodologies in rotor systems
Damages in rotor systems have severe impact on their functionality, safety, running durability and their industrial productivity, which usually leads...
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Nonlinear Dynamic Characteristics Analysis of Diaphragm Coupling Rotor System with Crack Fault
The diaphragm coupling may have crack failure under long-term high-speed working conditions. In this paper, the dynamic model and experimental model...
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Detection and quantification of oil whirl instability in a rotor-journal bearing system using a novel dynamic recurrence index
This paper presents a new Dynamic Recurrence Index (DRI) to detect the occurrence and quantify the evolution of oil whirl instability in the...
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Vibration Optimization Design and Experiment for Support of Aeroengine High-Speed Rotor System
In view of the phenomenon that the vibration acceleration of the adapter support was too large during the dynamic characteristic test of a gas...
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Load Identification Method for Spindle Rotor System of Rolling Mill Based on Fusion Information
Aiming at the limitations of single type response signal in load identification, this paper proposes a fusion information method that combines...
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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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Performance Analysis and Comparison for Various Excitation Source Salient Rotor with Modular Rotor Permanent Magnet of Flux Switching Machine
Due to the large power/torque density and high efficiency of permanent magnet flux switching magnet (FSPM) are suitable for driving electric vehicles...
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Aerodynamics of a Tandem-Bladed Axial Compressor Rotor under Circumferential Distortion at Different Rotational Speeds
For most aircraft engines, inflow distortion is inevitable. Inflow distortion is known to degrade the aerodynamic performance and stable operating...
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Conceptual design for a multi-rotor UAV based on variable paddle pitch
The field of unmanned aerial vehicles has experienced a “golden era” of progress in recent years (UAV). UAVs come in a vast variety, from the...
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A multi-stable nonlinear energy sink for torsional vibration of the rotor system
A multi-stable nonlinear energy sink (MNES) is presented and coupled to a rotor system to suppress torsional vibration. The nonlinear stiffness of...
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Field Identification of Key Dynamic Characteristic Parameters for Rotor-Bearing System Using Kalman Filter
Field identification of the key dynamic characteristic parameters, including the residual unbalance and bearing dynamic coefficients, is of great...
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A review on recent advancements in an automotive turbocharger rotor system supported on the ball bearings, oil film and oil-free bearings
In recent years, turbochargers have gained importance in the automotive industry, locomotive, and marine applications powered by diesel engines....
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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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Numerical studies on small rotor configurations with validation using acoustic wind tunnel data
This paper addresses the acoustic and aerodynamic characteristics of small rotor configurations, including the influence of the rotor–rotor...
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Dynamics of a Non-Ideal Gyroscopic Rotor System with Translational-Rotational Coupling Effect of External and Internal Dam**
AbstractNon-ideal high-speed rotors often exhibits nonlinear jumps driven through a power drive with limited capacity. The study of nonlinear jump in...
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Modeling and Simulation Study for Failure Prevention of Shredder Rotor Bearing System Used for Synthetic Elastic Material Applications
This research presented the modeling and simulation approach, as a failure prevention and design optimization tool for determining the dynamic...
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On-line field balancing technique using virtual trial unbalances in rotor-bearing system incorporated with active magnetic bearing
A practical online balancing methodology is proposed for a rotor system supported on conventional bearings, utilizing an Active Magnetic Bearing...
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Nonlinear Dynamics Analysis for a Model-Reduced Rotor System with Nonlinear Galerkin Method
Rotor-bearing systems are important components of aircraft engines of which vibration response must be analyzed under normal and disturbed...
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Dynamical responses and analysis of rotor-nacelle systems subjected to aerodynamic and base excitations
The whirl flutter in rotor-driven aircraft is a significant aeroelastic instability resulting from the intricate interplay between structural,...
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Additive fault diagnosis techniques in rotor systems: a state-of-the-art review
Faults in rotating systems can cause significant damage to the machinery and can result in downtime and production losses. Hence, the timely...
