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Study on Roller Bearing Power Loss Calculation Considering the Raceway Fault
The local fault of the roller bearing changes the contact characteristics between the roller and the raceway, affecting its friction coefficient and...
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Loss of Power in Plain Bearings in the Arctic Zone of Russia
The determination of power losses in motor-axle plain bearings depends on the reliable estimation of friction coefficient value, which can vary from...
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Power loss of the chain drive in a race tandem bicycle
Tandem cycling is a paralympic discipline, in which two cyclists ride on one tandem bicycle. Their performance can be improved by minimizing power...
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A near-zero quiescent power breeze wake-up anemometer based on a rolling-bearing triboelectric nanogenerator
Wind sensors have always played an irreplaceable role in environmental information monitoring and are expected to operate with lower power...
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Adaptive Lifting Network with Center Loss for Bearing Fault Diagnosis
Bearing is an indispensable component in mechanical equipment, reflecting its health, so its fault diagnosis is essential. However, the variations...
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Study on power losses of angular contact ball bearings with and without thermal expansions of bearing components
In this work, thermal expansions and thermal displacements of bearing components are firstly integrated into the dynamic model of ball bearings; on...
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Electrostatic actuators with constant force at low power loss using matched dielectrics
Electrostatic multilayer systems, which often employ thin polymer films in combination with displaceable insulating fluids, can enable actuation in...
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Calculation method and parameter optimization for friction power loss of the modified double-helical gear transmission
In this paper, a new calculation method for friction power loss of the modified double-helical gear transmission is presented. Considering the...
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Design of the long-distance wireless power transfer system with multiple relay coils based on loss optimization
This paper proposes a design scheme for a wireless power transfer (WPT) system based on multi-relay coils to solve the power supply demand of 500 kV...
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Influence of the Lubricant’s Supply Temperature on the Operation of a Fluid Film Thrust Bearing
AbstractThe temperature at which lubricant is supplied to the film on a fluid film fixed pad thrust bearing in a centrifugal or screw compressor is...
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Dynamic analysis of spindle-bearing system considering bearing wear evolution
Bearing wear is an inevitable and a slowly evolving process. It affects the dynamic response of spindle-bearing systems by changing contact status...
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Research on Magnetic Levitation Bearing Three-Level Switching Power Amplifier
Magnetic levitation bearings are widely used in flywheel energy storage because of the advantages of frictionless and low mechanical loss. Its...
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A Method Based on VMD and Power Spectrum-CNN for Bearing Fault Diagnosis
Rolling bearings are prone to surface damage during operation. This research offers a fault diagnosis technique based on Variational Modal...
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An investigation of dynamic characteristics in rotor-bearing system with combined bearing and coupling defects
The development of comprehensive dynamic model for condition-based maintenance is essential when addressing severe defects, such as misalignment and...
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Estimation of Hydraulic Power Losses in a Double-Row Tapered Roller Bearing via Computational Fluid Dynamics
To enhance the bearings’ efficiency, it is essential to determine and quantify the sources of power loss in the design stage. In oil-lubricated...
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A Noise-Robust Feature Extraction Method for Rolling Element Bearing Diagnosis: Linear Power-Normalized Cepstral Coefficients (LPNCC)
One of the most critical challenges in rolling bearing diagnosis is dealing with weak fault signals that are buried in noises arising from...
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A combined experimental and analytical method to determine the EHL friction force distribution between rollers and outer raceway in a cylindrical roller bearing
Friction force is a crucial factor causing power loss and fatigue spalling of rolling element bearings. A combined experimental and analytical method...
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Research Progress of Hydrostatic Bearing and Hydrostatic-Hydrodynamic Hybrid Bearing in High-End Computer Numerical Control Machine Equipment
Hydrostatic bearing has the advantages of wide speed range, large bearing capacity, high precision and stability. Hydrostatic-hydrodynamic hybrid...
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Numerical Study of the Lubricant Viscosity Grade Influence on Thrust Bearing Operation
The article presents studies of the influence of the viscosity grade of the supplied oil ISO VG32 and VG46 in a wide range of rotor speeds and...
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Influence of Bearing and Seal Design on Performance of an Oil-Injected Screw Compressor for Refrigeration Applications
Screw compressors are key components in a range of refrigeration and air conditioning applications. It is essential that the design and operation of...