Results 271 to 280 of about 6,390,732 (328)

Bearing failures diagnosis and investigation

Wear, 1973
Abstract Successful failure investigation enables satisfactory remedial measures to be effected and can lead to improved design embodying greater reliability. As technological progress advances, bearing failure mechanisms are becoming increasingly complex and it is not always possible to give reliable on site diagnoses. A full investigation using all
openaire   +1 more source

Failure analysis of water-bearing sandstone using acoustic emission and energy dissipation

, 2020
We performed uniaxial compression tests on sandstone with variable water contents (dry, natural, and fully saturated) and monitored deformation and failure in real-time using acoustic emission (AE) techniques. We propose sandstone damage variables on the
J. Geng, Li-Wen Cao
semanticscholar   +1 more source

Failure mechanisms in motor bearings

Engineering Failure Analysis, 2005
Abstract Defective bearings of a motor were investigated for possible mechanisms leading to their premature failure during manufacturing. Detailed studies including visual examination, optical microscopy and scanning electron microscopy were performed to determine the root cause(s) for failure.
K.V. Sudhakar, Joel Cruz Paredes
openaire   +1 more source

Wear Failure of an Antifriction Bearing

2019
Abstract An antifriction bearing made from a nylon/ polyethylene blend failed. The bearing came into contact with a steel shaft. Investigation (visual inspection and 417X images) supported the conclusion that movement of the shaft against the bearing caused abrasion due to fine iron oxide particles. No recommendations were made.
openaire   +1 more source

Failure of a set of roller bearings

Wear, 1957
Abstract The failure of a set of roller bearings operating under unusual conditions has been investigated. The findings have disclosed interesting features relating to the metallurgy of the rollers, the mechanism of failure and the evaluation of oils used for lubricating such bearings.
C.G. McDonald, A.L. Temby, M.E. Hargreaves, A.J.W. Moore   +3 more
openaire   +1 more source

Failure analysis of an aero engine ball bearing

Journal of Failure Analysis and Prevention, 2006
Abstract An aero engine failed due to the misalignment of the ball bearing fitted on the main shaft of the engine. The aero engine incorporates two independent compressors: a six-stage axial flow LP compressor and a nine-stage axial flow HP compressor.
N. Ejaz, I. Salam, A. Tauqir
openaire   +1 more source

Unstable failure of gas-bearing coal-rock combination bodies: Insights from physical experiments and numerical simulations

Chemical engineering research & design, 2019
Outburst-rockburst coupling dynamic disaster is a complicated process of the unstable failure of a gas-bearing coal-rock combination system, which remains great challenges to the safe production of coal mines.
F. Du, Kai Wang
semanticscholar   +1 more source

Bearing Friction and Failure Mechanisms

2016
The total friction torque acting on the bearing is caused by the bearing loads, viscous friction of oil, and seals of the bearing: $$ {M}_t={M}_l+{M}_v+{M}_s ...
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Failure tests and bearing performance of prototype segmental linings of shield tunnel under high water pressure

Tunnelling and Underground Space Technology, 2019
The occurrence and characteristics of structural failure under high water pressure and the evaluation of structural bearing capacity are of great significance in the rational design of shield tunnels.
Li Zhang, Kun Feng, Chao Gou, Chuan He, Kun Liang, Haihua Zhang   +5 more
semanticscholar   +1 more source

ANALYSIS OF ROLLING BEARING FAILURES

Mechanics and Technologies
Данные о доле различных видов повреждений подшипников качения у тракторов различных марок и даже у тракторов одной марки, но в различных выборках, могут несколько отличаться, так как это соотношение является результатом влияния ряда переменных факторов, в том числе нагруженности подшипниковых узлов, свойств абразивных частиц, попадающих в смазку и ...
openaire   +1 more source