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Analysis of Contact Stress Distribution between Rolling Element and Variable Diameter Raceway of Cageless Bearing
2022
Applied Sciences
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The change in contact state between the rolling elements and raceway of a cageless bearing with a variable diameter raceway affect the wear of the bearing, which leads to discrete motion failure of the ...
The theoretical guidance for the development and application of cageless bearings is provided. ...
Conflicts of Interest: The authors declare no conflict of interest. ...
doi:10.3390/app12125764
fatcat:ve27esqjwnfx7lw3fhze3mk6dm
Touchdown bearing models for rotor-AMB systems
2019
Journal of Sound and Vibration
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In such an event, the rotor behaviour drops on two touchdown bearings (TDBs) composed of a ball bearing and a ribbon damper providing stiffness and damping to the overall system. ...
This paper investigates numerically and experimentally the rotor drop dynamics when unexpected Active Magnetic Bearings (AMBs) shut down occurs. ...
[30] 50 analysed with a rapid camera the rotation of the balls of a cageless TDB during a rotor drop. ...
doi:10.1016/j.jsv.2018.09.058
fatcat:itaa4j6cq5eflgsr6nnvxmk56y
Characterization of Bond Fracture in Discrete Groove Wear of Cageless Ball Bearings
2022
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Cageless ball bearings with discrete grooves in the outer raceway enable the dispersion of rolling elements. Once worn, the discrete groove can cause the rolling element to discretely fail. ...
This paper presents the discrete element method to investigate the wear of discrete grooves in cageless bearings from the standpoint of bond fracture. ...
Conflicts of Interest: The authors declare no conflict of interest. ...
doi:10.3390/ma15196711
pmid:36234053
pmcid:PMC9571523
fatcat:rymhqyf4s5czzktug6a5jyyyeq
1985 IEEE Industry Applications Society Annual Meeting October 6 - 11, 1985, Toronto, Ontario, Canada
1985
IEEE transactions on industry applications
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., + , CITCON85 Paper V.2/1-14 trends in cement mill drives in the US. Thomas, P.F, CITCON 85 Paper V. 1/1-4 6500-hp cement-industry ball mill motor drive; operating experience. ...
Bearings (mechanical) Rotating-machine protection; cf. ...
doi:10.1109/tia.1985.349622
fatcat:3d7udfuydzcyrhezyntkhanwei
Design of a High Speed Switched Reluctance Machine for Automotive Turbo-Generator Applications
1999
SAE Technical Paper Series
unpublished
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The efficient generation of relatively large quantities of electrical energy in vehicles is becoming an increasingly important issue, as a result of increasing demands of ancillary equipment and the emergence ...
of hybrid power-train vehicles. ...
bearings with ceramic balls. ...
doi:10.4271/1999-01-2933
fatcat:yk2vqtpxwzeobe477qwtnmnkne
Is Structural Separation of Incumbent Local Exchange Carriers Necessary for Competition?
2002
Social Science Research Network
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In this Article, we analyze, and reject as unpersuasive, the putative benefits of mandatory structural separation. ...
Apart from producing no discernable benefits to consumers, mandatory structural separation would entail a substantial social cost in terms of forgone coordination of investment and production and forgone ...
Moreover, making an investment in telecommunications assets is particularly risky, given the industry's technological dynamism and uncertain market demand. ...
doi:10.2139/ssrn.302846
fatcat:yxeh3gkebrdujjzlnu7o22tzey
Ornithology of desire : birding in the ecotone and the poetry of Don McKay
2007
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In this dissertation I develop a vocabulary and a strategy for reading birds and ecology in Don McKay's poetry. ...
Between chapters, I include what I am calling Ecotones, fictional accounts of a literary critic struggling to enact the interdisciplinary ecocriticism outlined in this dissertation. ...
My entire family has, perhaps, mastered the art of loving disinterestedness-they have supported my studies unconditionally, and for that I am grateful. ...
doi:10.14288/1.0100676
fatcat:ry6gskzgvjg7tj4aaznxtyxxtu