Resource Type

Journal Article 119

Year

2023 8

2022 7

2021 10

2020 2

2019 5

2018 4

2017 4

2016 7

2015 4

2014 6

2013 3

2012 16

2010 4

2009 8

2008 6

2007 5

2006 6

2005 1

2004 1

2003 5

open ︾

Keywords

bearing capacity 23

DX pile 10

settlement 7

bearing 6

bearing behavior 3

finite element analysis 3

bifurcation 2

computational 2

dynamic stiffness 2

failure mechanism 2

fault diagnosis 2

milling 2

numerical analysis 2

process 2

rolling bearing 2

3D mesoscopic modelling 1

3D numerical modeling 1

AR model 1

Active magnetic bearings (AMBs) 1

open ︾

Search scope:

排序： Display mode:

Study on property comparison of DX pile casted in place with vario us quantities of bearing bells

Zhang Dehua,Qi Wanpeng,He Dexin

Strategic Study of CAE 2012, Volume 14, Issue 1,   Pages 26-30

Abstract:

Based on numerical simulation, bearing capacity and settlement controlThe property differences of conventional straight piles, DX piles with 2 bells and DX piles with 3 bellsare presented in condition of identical length, diameter, and bearing capacity.As to bearing capacity, DX piles with 2 bells are 1.5 times greater than that of the straight piles,while DX piles with 3 bells are 1.2 times greater than that of DX piles with 2 bells.

Keywords： DX pile     quantity of bearing bells     bearing capacity     settlement    

HTML PDF Collect

Effect of Fe loading quantity on reduction reactivity of nano zero-valent iron supported on chelating

Jialu SHI,Shengnan YI,Chao LONG,Aimin LI

Frontiers of Environmental Science & Engineering 2015, Volume 9, Issue 5,   Pages 840-849 doi: 10.1007/s11783-015-0781-2

Abstract: In this study, nanoscale zero-valent iron (NZVI) were immobilized within a chelating resin (DOW 3N). To investigate the effect of Fe loading on NZVI reactivity, three NZVI-resin composites with different Fe loading were obtained by preparing Fe(III) solution in 0, 30 and 70% (v/v) ethanol aqueous, respectively; the bromate was used as a model contaminant. TEM reveals that increasing the Fe loading resulted in much larger size and poor dispersion of nanoscale iron particles. The results indicated that the removal efficiency of bromate and the rate constant ( ) were decreased with increasing the Fe loading. For the NZVI-resin composite with lower Fe loading, the removal efficiency of bromate declined more significantly with the increase of DO concentrations. Under acidic conditions, decreasing the pH value had the most significant influence on NZVI-R3 with highest Fe loading for bromate removal; however, under alkaline conditions, the most significant influence of pH was on NZVI-R1 with lowest Fe loading. The effects of co-existing anions , and were also investigated. All of the co-existing anions showed the inhibition to bromate reduction.

Keywords： nanoscale zero valent iron     loading quantity     reduction     chelating resin     bromated    

HTML PDF Collect

Cryogenic minimum quantity lubrication machining: from mechanism to application

Frontiers of Mechanical Engineering 2021, Volume 16, Issue 4,   Pages 649-697 doi: 10.1007/s11465-021-0654-2

Abstract: Environmental machining technologies, such as dry cutting, minimum quantity lubrication (MQL), and cryogenicThe latest progress of cryogenic minimum quantity lubrication (CMQL) technology is reviewed in this paper

Keywords： cryogenic minimum quantity lubrication (CMQL)     cryogenic medium     processing mode     device application    

HTML PDF Collect

Tribological mechanism of carbon group nanofluids on grinding interface under minimum quantity lubrication

Frontiers of Mechanical Engineering 2023, Volume 18, Issue 1, doi: 10.1007/s11465-022-0733-z

Abstract: Carbon group nanofluids can further improve the friction-reducing and anti-wear properties of minimum quantity

Keywords： grinding     minimum quantity lubrication     carbon group nanofluid     tribological mechanism    

HTML PDF Collect

Short-term prediction of the influent quantity time series of wastewater treatment plant based on a chaos

LI Xiaodong, ZENG Guangming, HUANG Guohe, LI Jianbing, JIANG Ru

Frontiers of Environmental Science & Engineering 2007, Volume 1, Issue 3,   Pages 334-338 doi: 10.1007/s11783-007-0057-6

Abstract: By predicting influent quantity, a wastewater treatment plant (WWTP) can be well controlled.The nonlinear dynamic characteristic of WWTP influent quantity time series was analyzed, with the assumptionBased on this, a short-term forecasting chaos neural network model of WWTP influent quantity was built

Keywords： nonlinear     reconstruction     WWTP influent     characteristic     Reasonable forecasting    

HTML PDF Collect

Initial impacts of rain gardens’ application on water quality and quantity in combined sewer: field-scale

Isam Alyaseri, Jianpeng Zhou, Susan M. Morgan, Andrew Bartlett

Frontiers of Environmental Science & Engineering 2017, Volume 11, Issue 4, doi: 10.1007/s11783-017-0988-5

Abstract: Green infrastructures such as rain gardens can benefit onsite reduction of stormwater runoff, leading to reduced combined sewer overflows. A pilot project was conducted to evaluate the impact of rain gardens on the water quality and volume reduction of storm runoff from urban streets in a combined sewer area. The study took place in a six-block area on South Grand Boulevard in St. Louis, Missouri. The impact was assessed through a comparison between the pre-construction (2011/2012) and the post-construction (2014) phases. Shortly after the rain gardens were installed, the levels of total suspended solids, chloride, total nitrogen, total phosphorous, zinc, and copper increased. The level of mercury was lower than the detection level in both phases. was the only parameter that showed statistically significant decrease following the installation of rain gardens. The likely reason for initial increase in monitored water quality parameters is that the post-construction sampling began after the rain gardens were constructed but before planting, resulted from soil erosion and wash-out from the mulch. However, the levels of most of water quality parameters decreased in the following time period during the post-construction phase. The study found 76% volume reduction of stormwater runoff following the installation of rain gardens at one of studied sites. Statistical analysis is essential on collected data because of the encountered high variability of measured flows resulted from low flow conditions in studied sewers.

Keywords： Rain gardens     Bioretention     Combined sewer     Stormwater quality and quantity    

HTML PDF Collect

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    

HTML PDF Collect

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    

HTML PDF Collect

New form of geodetic coordinate system taking two length quantity as coordinate parameters

Yimin SHI, Ziyang ZHU, Yeming FAN

Frontiers of Structural and Civil Engineering 2009, Volume 3, Issue 1,   Pages 105-110 doi: 10.1007/s11709-009-0014-5

Abstract: A new form of geodetic coordinate system based on geodesic coordinates instead of geodetic longitude and latitude was proposed. The vertical and horizontal geodesic coordinates measured with length were defined as coordinate parameters, but the two families of coordinate curves were still meridians and parallel circles. The first fundamental form on the ellipsoidal surface and its three coefficients were deduced by the geodesic coordinate. The formula for the latitudinal scale factor of length for geodetic parallel lines was derived, by which the obtained result conformed to that standard value calculated from geodetic latitude, and it is applicable in the range of 400 km from north to south. Therefore, it lays the foundation for establishing the differential equation and differential relationship based on this type of coordinate parameters; and consequently, it is convenient and accurate enough to operate on the ellipsoidal surface in this new form of geodetic coordinate system.

Keywords： geodetic coordinate system     meridian and parallel circle     coordinate parameter     the first fundamental form on the ellipsoidal surface     latitudinal scale factor of length    

HTML PDF Collect

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    

HTML PDF Collect

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    

HTML PDF Collect

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    

HTML PDF Collect

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    

HTML PDF Collect

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.
HTML PDF Collect

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    

HTML PDF Collect

Title Author Date Type Operation

Study on property comparison of DX pile casted in place with vario us quantities of bearing bells

Zhang Dehua,Qi Wanpeng,He Dexin

Journal Article

Effect of Fe loading quantity on reduction reactivity of nano zero-valent iron supported on chelating

Jialu SHI,Shengnan YI,Chao LONG,Aimin LI

Journal Article

Cryogenic minimum quantity lubrication machining: from mechanism to application

Journal Article

Tribological mechanism of carbon group nanofluids on grinding interface under minimum quantity lubrication

Journal Article

Short-term prediction of the influent quantity time series of wastewater treatment plant based on a chaos

LI Xiaodong, ZENG Guangming, HUANG Guohe, LI Jianbing, JIANG Ru

Journal Article

Initial impacts of rain gardens’ application on water quality and quantity in combined sewer: field-scale

Isam Alyaseri, Jianpeng Zhou, Susan M. Morgan, Andrew Bartlett

Journal Article

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

Journal Article

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

Zhinan ZHANG, Mingdong ZHOU, Weimin DING, Huifang MA

Journal Article

New form of geodetic coordinate system taking two length quantity as coordinate parameters

Yimin SHI, Ziyang ZHU, Yeming FAN

Journal Article

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

Jinnan WANG,Jing ZHANG,Hongqiang JIANG,Yaling LU

Journal Article

The convexity about ultimate bearing hypersurfaces of structures

Chengxi GUO,Tingting GUO

Journal Article

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

Mehdi VEISKARAMI, Ghasem HABIBAGAHI

Journal Article

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

Journal Article

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

XU Hua, ZHU Jun

Journal Article

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

Journal Article