Results 21 to 30 of about 20,332,447 (330)
Acoustic Emissions and monitoring bearing health [PDF]
Acoustic emission (AE) was originally developed for non-destructive testing of static structures. however, over the years its application has been extended to health monitoring of rotating machines and bearings.
Mba, David
core +1 more source
Electrical Bearing Damage, A Problem in the Nano- and Macro-Range
Rolling bearings face different damaging effects: Besides mechanical effects, current-induced bearing damage occurs in electrical drive systems. Therefore, it is of increasing interest to understand the differences leading to known electrical damage ...
Volker Schneider +9 more
doaj +1 more source
Modified Slot Opening for Reducing Shaft-to-Frame Voltage of AC Motors
This paper presents a method to reduce the winding-to-rotor capacitance of electrical machines for the purpose of suppressing shaft-to-frame voltage, which causes reliability issues, such as electromagnetic interference (EMI) and bearing current.
Manje Yea, Ki Jin Han
doaj +1 more source
Prediction of Ultimate Bearing Capacity of Long-Term Loaded Piles
To predict the ultimate bearing capacity of long-term loaded piles, the shortcomings of current empirical formulas of pile bearing capacity considering time effect are discussed.
LI Jingpei, XU Zihan
doaj +1 more source
Suppression of Harmonic Current in Magnetic Bearing–Rotor System with Redundant Structure
The magnetic bearing–rotor system has the advantages of no mechanical friction and active vibration control. A magnetic bearing with redundant structures provides an effective method to apply fault-tolerant control to the magnetic bearing–rotor system ...
Baixin Cheng +4 more
doaj +1 more source
Bearing damage caused by electric discharge machining (EDM) is a concern in electric ship propulsion drives, particularly during low-speed operations such as maneuvering and slow steaming.
Sungwoo Song +4 more
doaj +1 more source
Bearing defect diagnosis and acoustic emission. [PDF]
Acoustic emission (AE) was originally developed for non-destructive testing of static structures, however, over the years its application has been extended to health monitoring of rotating machines and bearings.
Mba, David +3 more
core +1 more source
An Overview on Electrodynamic Bearings
In electrodynamics, the levitation ensues when there is a relative motion between a stator and a conductor owing to which high eddy currents are induced.
Supreeth D. K. +2 more
doaj +1 more source
The Hard on Hard Bearings in THA – Current concepts [PDF]
Total hip arthroplasty has been one of the most successful inventions of the last century with useful results in decreasing pain and improving function in patients with degenerative disease of the hip. Improvements in prosthetic materials, designs and implant fixation have now resulted in wear of the bearing surface being the limitation of this ...
openaire +2 more sources
Pulse–width modulated inverters are commonly used to control electrical drives, generating a common mode voltage and current with high–frequency components that excite the parasitic capacitances within electric machines, such as permanent magnet ...
Yusa Tombul +2 more
doaj +1 more source

