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GMPSO-VMD Algorithm and Its Application to Rolling Bearing Fault Feature Extraction
The vibration signal of an early rolling bearing is nonstationary and nonlinear, and the fault signal is weak and difficult to extract. To address this problem, this paper proposes a genetic mutation particle swarm optimization variational mode ...
Jiakai Ding +3 more
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RELATIONSHIP BETWEEN ROLLING AND SLIP RESISTANCE IN ROLLING BEARINGS
Purpose. About one of the causes of slip rolling is known from the second half of the 19th century, it was believed that the slip resistance appears at the place of contact due to different speeds on the arc of contact.
L. M. Bondarenko +4 more
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Medium manganese steel has excellent comprehensive properties due to the TRIP effect of retained austenite, but its welding performance is unsatisfactory for its high alloy content.
Long Huang +3 more
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Dynamic Characteristics of a Misaligned Rigid Rotor System with Flexible Supports
A misaligned rigid rotor system with flexible supports differing from the traditional flexible rotor system, which refers to its practical rotating center line determined by supports offset from the theoretical one, often suffers support structure damage
Meiling Wang +4 more
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Structural design and magnetic field analysis on magnetic fluid lubricated bearings
A structural model of a bearing is proposed based on a general standard bearing structure and magneto‐fluidic lubrication, and the magnetic field of the bearing lubrication gap is analyzed under the action of an applied magnetic source. Results show that
Ao Wang, Jiabao Pan, Jin Ye, Huaibiao Wu
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Weak fault detection of rolling bearing presents difficult, because the periodic transient signature produced via localized incipient damage is easily submerged by various interference components and background noise.
Lu Yan, Du Juan, Ding En-Jie, Liu Ke
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Because of the radial clearance, the radial stiffness of rolling bearing will show obvious time-varying characteristics, which may cause a certain vibration.
Runlin Chen +5 more
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Adaptive Multiscale Weighted Permutation Entropy for Rolling Bearing Fault Diagnosis [PDF]
© 2020 The Author(s). This work is licensed under a Creative Commons Attribution 4.0 License. For more information, see https://creativecommons.org/licenses/by/4.0/.Bearing vibration signals contain non-linear and non-stationary features due to ...
Huo, Zhiqiang +3 more
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Identification of rolling bearing fault patterns, especially for the compound faults, has attracted notable attention and is still a challenge in fault diagnosis.
HongChao Wang, WenLiao Du
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In light of low sensitivity of fuzzy entropy in extracting degraded features of rolling bearing,an improved fuzzy entropy based on the sigmoid-like function is proposed.
Li Cheng +3 more
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