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Motor Bearing Damage Induced by Bearing Current: A Review

Machines, 2022
The occurrence of the motor shaft voltage and bearing current caused by the inverter will aggravate bearing damage and lead to the premature failure of bearings. Many types of equipment are being shut down due to bearing currents, such as filters, insulated bearings and grounding brushes.
Jiaojiao Ma, Yujian Xue, Qingkai Han, Xuejun Li, Changxin Yu   +4 more
openaire   +2 more sources

Current Status of Hybrid Bearing Damage Detection [PDF]

Tribology Transactions, 2005
Advances in material development and processing have led to the introduction of ceramic hybrid bearings for many applications. The introduction of silicon nitride hybrid bearings into the high pressure oxidizer turbopump, on the space shuttle main engine, led NASA to solve a highly persistent and troublesome bearing problem.
PAULA J. DEMPSEY, JOSEPH M. CERTO, WILFREDO MORALES   +2 more
openaire   +1 more source

Low Speed Current Bearing Anti-force Waves

Journal of the Arkansas Academy of Science, 2014
For theoretical investigation of electrical breakdown of a gas, we apply a one-dimensional, steady profile, constant velocity, three-component (electrons, ions and neutral particles) fluid model. Our fluid model consists of the equations of conservation of mass, momentum and energy, coupled with the Poison’s equation. The set of equations is referred
Hemmati, M., Childs, W. P., Shojaei, H., Morris, H.   +3 more
openaire   +3 more sources

Wave Profile for Current Bearing Lightning Strokes

Journal of the Arkansas Academy of Science, 2018
The propagation of breakdown waves in a gas, which is primarily driven by electron gas pressure, is described by a one-dimensional, steady-state, three-component (electrons, ions, and neutral particles) fluid model. This study will involve waves propagating in the opposite direction of the electric field force on electrons (anti-force waves—lightning
Landers, Baylee, Hemmati, M, Alzhrani, Ali   +2 more
openaire   +3 more sources

Wave Profile for Current Bearing Antiforce Waves

Journal of the Arkansas Academy of Science, 2013
For fluid dynamical analysis of breakdown waves, we employ a one-dimensional, three-component (electrons, ions and neutral particles) fluid model to describe a steady-state, ionizing wave propagating counter to strong electric fields. The electron gas temperature and therefore the electron fluid pressure is assumed to be large enough to sustain the ...
Morris, H., Childs, W., Pinkston, P., Hemmati, M., Christensen, J.   +4 more
openaire   +3 more sources

Multi-mode fault diagnosis datasets of three-phase asynchronous motor under variable working conditions. [PDF]

Data Brief
Chen S, Liu Z, Li C, Zou D, He X, Zhou D.   +5 more
europepmc   +1 more source

Fault Diagnosis of Static Eccentricity in Marine Diesel Generators Using 2D Short-Time Fourier Transform of Three-Phase Currents. [PDF]

Sensors (Basel)
Joe BJ, Lee JS, Yeo SJ, Cho YJ, Jeon JY.
europepmc   +1 more source

Displacement Self-Sensing Active Magnetic Bearing Drives-An Overview. [PDF]

Sensors (Basel)
Yang Y, Huang Y, Peng F, Yao Y.
europepmc   +1 more source

Theoretical Analysis and Research on Support Reconstruction Control of Magnetic Bearing with Redundant Structure. [PDF]

Sensors (Basel)
Sun H, Liang Z, Cheng B.
europepmc   +1 more source

Downregulation of ClC-3 chloride channels in dorsal root ganglia neurons contributes to bone metastasis-induced pain. [PDF]

J Biol Chem
Zhang ZX, Qiu YS, Yin XZ, Xi J, You Q, Xu G, Guan JZ.   +6 more
europepmc   +1 more source