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Rolling-element bearings in China: From ancient times to the 20th century

Lie SUN,Ang LI

Frontiers of Mechanical Engineering 2016, Volume 11, Issue 1, Pages 33-43 doi: 10.1007/s11465-016-0373-2

Abstract: At the second stage, a type of simple roller bearing was used for astronomical instruments not laterA similar bearing was also applied to an abridged armillary in the 17th century.At the third stage, the Chinese began studying and using the so-called European-style bearing since theMoreover, over the last 100 years, the modern rolling bearing industry was gradually established in ChinaThe government launched the “bearing movement” from the 1950s to the 1960s to establish the

Keywords： bearing movement rolling-element bearing China early rolling bearings technology transfer

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The Stable Movement of Salty Water Soil and Pattern Researchof Removing the Salt

Zhou Heping,Peng Lixin,Xu Xiaobo

Strategic Study of CAE 2007, Volume 9, Issue 11, Pages 120-126

Abstract:

Through the research of the water-salt movement under different groundthe symptom of redistribution of water and salt in certain area:when the evolvement of water and salt movementoccurs in vertical and horizontal direction, there is also the important symptom of sideward movementabroad, and discusses the new mode of salt drainage under both the condition of water-salt directional movementand the condition of salt movement to the earth's surface.

Keywords： water-salt directional movement new mode of salt dranage research and discussion

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Iterative HOEO fusion strategy: a promising tool for enhancing bearing fault feature

Frontiers of Mechanical Engineering 2023, Volume 18, Issue 1, doi: 10.1007/s11465-022-0725-z

Abstract: techniques, the energy operator (EO) and its variants have received considerable attention in the field of bearingTo address these issues, this paper presents a novel EO fusion strategy for enhancing the bearing faultand experimental verifications confirm that the proposed strategy is more effective for enhancing the bearing

Keywords： higher order energy operator fault diagnosis manifold learning rolling element bearing information

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New analysis model for rotor-bearing systems based on plate theory

Zhinan ZHANG, Mingdong ZHOU, Weimin DING, Huifang MA

Frontiers of Mechanical Engineering 2019, Volume 14, Issue 4, Pages 461-473 doi: 10.1007/s11465-019-0525-2

Abstract: The purpose of this work is to develop a new analysis model for angular-contact, ball-bearing systemsThe new analysis model is suitable for static and modal analyses of rotor-bearing systems.

Keywords： rotor-bearing system rolling element bearing plate theory finite element analysis

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Experimental study on average movement characteristics of bed-load particles

Limo TANG, Xingkui WANG,

Frontiers of Structural and Civil Engineering 2009, Volume 3, Issue 4, Pages 435-439 doi: 10.1007/s11709-009-0050-1

Abstract: The average movement characteristics of the particles are analyzed by statistics.

Keywords： different longitudinal three-dimensional particle Bagnold

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API-based assessment on urban air environment bearing capability in China

Jinnan WANG,Jing ZHANG,Hongqiang JIANG,Yaling LU

Frontiers of Environmental Science & Engineering 2015, Volume 9, Issue 6, Pages 1049-1055 doi: 10.1007/s11783-014-0662-0

Abstract: By using this new method, the air environmental bearing capability of 333 cities at the prefecture levelThe results show that of the 333 cities 9.6% is of high bearing capability, 34.5% relatively high bearingcapability, 52.6% medium bearing capability, 2.7% low capability, and 0.6% is of weak bearing capability; in terms of regional distribution, the western region is of relatively high air environment bearingChengdu-Chongqing agglomerations are of relatively high carrying capacity while other agglomerations are of medium bearing

Keywords： air pollution index (API) air environment bearing capability key city assessment method

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The convexity about ultimate bearing hypersurfaces of structures

Chengxi GUO,Tingting GUO

Frontiers of Structural and Civil Engineering 2016, Volume 10, Issue 4, Pages 456-461 doi: 10.1007/s11709-016-0334-1

Abstract: The relationship between the convexity on the ultimate bearing surface of a structure and the second-orderHessian matrix composed of the second-order partial derivatives on the hypersurface about the ultimate bearingSome applications in the analysis of bearing capacity of structures were illustrated with examples.The study shows that an evaluation about the bearing capacity state of a complex structure can be madeon the basis of several points on the surface of the ultimate bearing of the structure.

Keywords： service limit load ultimate bearing surface convexity generalized force generalized displacement frame

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Foundations bearing capacity subjected to seepage by the kinematic approach of the limit analysis

Mehdi VEISKARAMI, Ghasem HABIBAGAHI

Frontiers of Structural and Civil Engineering 2013, Volume 7, Issue 4, Pages 446-455 doi: 10.1007/s11709-013-0227-5

Abstract: The kinematic approach of the limit analysis was employed to find the upper-bound limit of the bearingIt was found that the bearing capacity has a decreasing trend with increase in the groundwater flow gradientand hence, a reduction factor has been introduced to the third term in the bearing capacity equation

Keywords： foundation bearing capacity limit analysis numerical computation plasticity seepage

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Undrained seismic bearing capacity of strip footing adjacent to a heterogeneous excavation

Frontiers of Structural and Civil Engineering 2023, Volume 17, Issue 4, Pages 566-583 doi: 10.1007/s11709-023-0905-x

Abstract: The analysis of the bearing capacity of strip footings sited near an excavation is critical in geotechnicseffects of the geometrical features of the excavation and the soil strength properties on the seismic bearingDesign charts and tables were produced to clarify the relationship between the undrained seismic bearing

Keywords： excavation finite element limit analysis heterogeneous soil strip footing undrained bearing capacity

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Influence of the Mechanical Seals on the Dynamic Performance of Rotor–Bearing Systems

XU Hua, ZHU Jun

Frontiers of Mechanical Engineering 2006, Volume 1, Issue 1, Pages 96-100 doi: 10.1007/s11465-005-0008-5

Abstract: the transfer matrix method are used to establish the equations for the dynamics performance of rotor bearingTo check the response of the rotor bearing system under unbalance motivation, the Gauss method is usedthat may affect the dynamic performance and forced vibration under unbalance motivation of the rotor bearingThe analysis results show that the mechanical seal more or less has effects on the rotor bearing systemThe mechanical seal has much more effects on the flexible rotor bearing system than on the rigid one.

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Multi-scale investigation of active failure for various modes of wall movement

Frontiers of Structural and Civil Engineering 2021, Volume 15, Issue 4, Pages 961-979 doi: 10.1007/s11709-021-0738-4

Abstract: Retained backfill response to wall movement depends on factors that range from boundary conditions toHence, various modes of wall movement (translation and rotation) toward the active state are modeleddistribution and deformation mechanisms are discussed with reference to the associated modes of wall movement

Keywords： discrete-element modelling granular materials retaining walls particle shape arching

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Ultimate bearing capacity of strip footing resting on clay soil mixed with tire-derived aggregates

Frontiers of Structural and Civil Engineering 2021, Volume 15, Issue 4, Pages 1016-1024 doi: 10.1007/s11709-021-0751-7

Abstract: use of recycled tire-derived aggregate (TDA) mixed with kaolin as a method of increasing the ultimate bearing

Keywords： kaolin physical modeling tests stabilization numerical modeling

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Temperature control of transfer roller’s bearing based on finite element analysis

Peng ZHANG, Yourong LI, Han XIAO

Frontiers of Mechanical Engineering 2009, Volume 4, Issue 2, Pages 215-218 doi: 10.1007/s11465-009-0026-9

Abstract: Second, the sub-model of the fixed end bearing is built and the boundary condition of the sub-model isThe analysis result of the sub-model shows that the temperature of the transfer roller bearing exceeds

Keywords： transfer roller bearing finite element analysis sub-model temperature control

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Liquefaction and impurity separation of oxygen-bearing coal-bed methane

Qiuying LI, Yonglin JU, Li WANG,

Frontiers in Energy 2010, Volume 4, Issue 3, Pages 319-325 doi: 10.1007/s11708-010-0115-9

Abstract: However, most oxygen-bearing CBM have not yet to be utilized due to limited techniques, and when utilizedIn this paper, a liquefaction process is proposed and designed for the specified oxygen-bearing CBM obtained

Keywords： coal bed methane oxygen-bearing liquefaction distillation

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Sub-layer Movement in the Large-scale Stratum

Xu Shaoxie

Strategic Study of CAE 2006, Volume 8, Issue 6, Pages 14-22

Abstract:

It was reported that a new find on sub-layer movement in the large-scale stratum had been observedEarthquakes with different division magnitude can represent movement of sub-layer with different thicknessA direct evidence of movement, synchronal movement in vertical direction, in the as large-scale stratumEvents with strong tremble of sub-layer movement have been analyzed, which were recorded by stations

Keywords： sub-layer movement in the large-scale stratum events with strong tremble earthquake prediction