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Method of internal 3D flow field numerical simulation for hydrodynamic torque converter

SHANG Tao, ZHAO Dingxuan, ZHANG Yuankun, GUO Xiangen, SHI Xiangzhong

Frontiers of Mechanical Engineering 2008, Volume 3, Issue 1,   Pages 86-90 doi: 10.1007/s11465-008-0012-7

Abstract: performance of a hydrodynamic torque converter and thoroughly understand the trait of inside flow, a numericalFinally, a calculation was performed considering the influence on each impeller.The calculation method, and the proposed pressure and velocity distribution of the flow field, have practical

Keywords： velocity distribution     calculation     numerical simulation     three-element centrifugal     converter    

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Analysis of load and adaptability of disc cutters during shield tunneling in soft–hard varied strata

Frontiers of Structural and Civil Engineering 2023, Volume 17, Issue 4,   Pages 533-545 doi: 10.1007/s11709-023-0946-1

Abstract: The results of numerical calculation can reflect the load level and the behavior of the disc cutters

Keywords： shield tunneling     disc cutter load     laboratory excavation test     numerical calculation     soft–hard varied    

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Centrifuge model test on dynamic behavior of group-pile foundation with inclined piles and its numerical

ZHANG Feng, OKAWA Katsunori, KIMURA Makoto

Frontiers of Structural and Civil Engineering 2008, Volume 2, Issue 3,   Pages 233-241 doi: 10.1007/s11709-008-0033-7

Abstract: The numerical analyses are conducted with a full system in which a superstructure, a pile foundationThe validity of the calculation is verified by the model tests.

Keywords： centrifuge     Different     three-dimensional elastoplastic     calculation     inclined    

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Dynamic failure analysis on granite under uniaxial impact compressive load

ZHAI Yue, MA Guowei, HU Changming, ZHAO Junhai

Frontiers of Structural and Civil Engineering 2008, Volume 2, Issue 3,   Pages 253-260 doi: 10.1007/s11709-008-0042-6

Abstract: To quantitatively analyze the failure phenomena, the numerical calculation based on a dynamic interacting

Keywords： numerical calculation     coefficient     cylinder     splitting parallel     strain-dependency    

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Strength of tubular welded joints of roof trusses in Shanghai Qizhong Tennis Center

TONG Lewei, GU Min, CHEN Yiyi, ZHOU Liying, SUN Jiandong, CHEN Yangji, LIN Yingru, LIN Gao

Frontiers of Structural and Civil Engineering 2008, Volume 2, Issue 1,   Pages 30-36 doi: 10.1007/s11709-008-0010-1

Abstract: The calculation results are in a good agreement with the experimental results, which indicated that thenumerical analysis was quite effective.

Keywords： diameter     numerical analysis     calculation     thickness     engineering    

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Numerical investigation of the effectiveness of effusion cooling for plane multi-layer systems with different

Dieter BOHN, Robert KREWINKEL

Frontiers in Energy 2009, Volume 3, Issue 4,   Pages 406-413 doi: 10.1007/s11708-009-0041-x

Abstract: The numerical grid for the simulations contains the coolant supply (plenum), the solid body for the conjugate

Keywords： conjugate calculation     effectiveness of effusion cooling     multi-layer systems     CMSX-4     NiAl-FG75    

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Explicit finite element method for calculation and analysis to the elasto-plastic dynamic response of

LI Liang, DU Xiuli, LI Liyun, ZHAO Chenggang

Frontiers of Structural and Civil Engineering 2007, Volume 1, Issue 4,   Pages 436-442 doi: 10.1007/s11709-007-0059-2

Abstract: the integral formula mentioned above, the time-domain explicit finite element method is developed for calculation

Keywords： discretization     computational     calculation     integral     requirement    

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Application of an efficient stochastic calculation method on the seismic analysis of an isolated structure

Wei GUO, Zhiwu YU

Frontiers of Structural and Civil Engineering 2012, Volume 6, Issue 4,   Pages 379-384 doi: 10.1007/s11709-012-0180-8

Abstract: However, traditional seismic calculation theory and methods are derived based on the assumption thatBased on this drawback, a new, more efficient stochastic calculation method, an improvement on the pseudo-excitationMoreover, the calculation process of the seismic response of an isolated structure is convergent.

Keywords： isolated structure     stochastic response     non-proportional damping     efficient     accurate     pseudo-excitation method    

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The calculation of equivalence factor for ecological footprints in China: a methodological note

Moucheng LIU,Wenhua LI,Dan ZAHNG,Ning SU

Frontiers of Environmental Science & Engineering 2015, Volume 9, Issue 6,   Pages 1015-1024 doi: 10.1007/s11783-014-0670-0

Abstract: The Ecological Footprint (EF), a physical indicator to measure the extent of humanity’s use of natural resources, has gained much attention since it was first used by Wackernagel and Rees in 1996. In order to appraise land area types with different levels of productivity, they introduced the concept of an equivalence factor. This relates to the average primary biomass productivities of different types of land (i.e. arable land, pasture, forest, water/fishery, built-up land and fossil energy land) to the regional average primary biomass productivity of all land types in a given year. Hence, the equivalence factor is an important parameter in the EF model and it directly affects the reliability of all results. Thus, this article calculates equivalence factors on the national and provincial levels in China based on Net Primary Production (NPP) from MODIS 1 km data in 2008. Firstly, based on the Light Utility Efficiency and CASA model, the NPP of different biologically productive lands of China and of different provinces was calculated. Secondly, China’s equivalence factor for 6 land area types was calculated based on NPP: arable land and built-up land has an equivalence factor of 1.71, forest and fossil energy land has a factor of 1.41, pasture has a factor of 0.44 and water/fishery 0.35; Finally, the equivalence factor of 6 land area types in different provinces was also calculated. The NPP of each ecosystem type varies along with the equivalence factor in different provinces. However, the ranking of the equivalence factors in different provinces remain the same, with that of arable land being the largest, and the water/fishery being the smallest.

Keywords： ecological footprint     equivalence factor     net primary production     biological capacity     land types    

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Unified calculation method and its application in determining the uniaxial mechanical properties of concrete

Faxing DING, Xiaoyong YING, Linchao ZHOU, Zhiwu YU

Frontiers of Structural and Civil Engineering 2011, Volume 5, Issue 3,   Pages 381-393 doi: 10.1007/s11709-011-0118-6

Abstract: This paper presents a unified calculation method and its application in determining the uniaxial mechanicalhigh-strength and super high-strength concrete in China and performing a regression analysis, unified calculation

Keywords： concrete     mechanical properties     stress-strain relationship     uniaxial stress     application    

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Calculation method of load distribution on pipe threaded connections under tension load

Shoujun CHEN, Lianxin GAO, Qi AN

Frontiers of Mechanical Engineering 2011, Volume 6, Issue 2,   Pages 241-248 doi: 10.1007/s11465-011-0219-x

Abstract:

This paper presents a new calculation method that can calculate the load distribution on pipe threaded

Keywords： load distribution     calculation method     pipe threaded connections     tension load    

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Calculation on phase diagrams of polyetherimide/

Ming TAN,Gaohong HE,Yan DAI,Rujie WANG,Wenhua SHI

Frontiers of Chemical Science and Engineering 2014, Volume 8, Issue 3,   Pages 312-319 doi: 10.1007/s11705-014-1434-x

Abstract: The ternary phase diagrams of polyetherimide (PEI)/ , -dimethylacetamide (DMAc) with H O and BuOH as non-solvent were simulated using solubility parameter and Flory-Huggins theory. The phase diagrams show that 5.5% H O/BuOH system containing 5% BuOH and 0.5% H O, or 6.5% H O/BuOH system containing 6.2% BuOH and 0.3% H O is required to induce liquid-liquid demixing for 20 wt-% PEI/DMAc casting solution. Therefore, BuOH can enhance the phase separation of the PEI casting solution and hereby induce higher porosity of the membrane, and the diffusion of BuOH into the water coagulation bath causes larger pore size easily compared with DMAc. Our predictions that the membrane pure water flux first increases then decreases, and the rejection ratio of bovine serum albumin decreases with the increasing concentration of BuOH were validated by the experiments using the prepared membranes.

Keywords： phase diagram     solubility parameter     interaction parameter     ultrafiltration     Flory-Huggins theory    

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Heuristic solution using decision tree model for enhanced XML schema matching of bridge structural calculation

Sang I. PARK, Sang-Ho LEE

Frontiers of Structural and Civil Engineering 2020, Volume 14, Issue 6,   Pages 1403-1417 doi: 10.1007/s11709-020-0666-8

Abstract: Research on the quality of data in a structural calculation document (SCD) is lacking, although the SCDThe inverse-calculation method was applied to extract the weight factors from the decision tree model

Keywords： structural calculation document     bridge structure     XML Schema matching     weight factor     data mining     decision    

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Fast emergency control strategy calculation based on dynamic equivalence and integral sensitivity Research Articles

Yi-fan GAO, Jian-quan WANG, Tan-nan XIAO, Dao-zhuo JIANG

Frontiers of Information Technology & Electronic Engineering 2019, Volume 20, Issue 8,   Pages 1119-1132 doi: 10.1631/FITEE.1700389

Abstract: Generator models are grouped and aggregated according to a fast numerical integration.A fast calculation method of the admittance matrix is then proposed to calculate the parameters of anequivalent system, and numerical integration is performed using the obtained equivalent system.

Keywords： Emergency control     Transient stability     Numerical integration     Dynamic equivalence     Integral sensitivity    

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Analyses of the seismic responses of soil layers with deep deposits

LOU Menglin, LI Yuchun, LI Nansheng

Frontiers of Structural and Civil Engineering 2007, Volume 1, Issue 2,   Pages 188-193 doi: 10.1007/s11709-007-0021-3

Abstract: Some results are obtained by numerical analysis.A significant error will be introduced in the calculation when the artificial horizontal rock surface

Keywords： little influence     layer     calculation     Shanghai     dynamic    

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Title Author Date Type Operation

Method of internal 3D flow field numerical simulation for hydrodynamic torque converter

SHANG Tao, ZHAO Dingxuan, ZHANG Yuankun, GUO Xiangen, SHI Xiangzhong

Journal Article

Analysis of load and adaptability of disc cutters during shield tunneling in soft–hard varied strata

Journal Article

Centrifuge model test on dynamic behavior of group-pile foundation with inclined piles and its numerical

ZHANG Feng, OKAWA Katsunori, KIMURA Makoto

Journal Article

Dynamic failure analysis on granite under uniaxial impact compressive load

ZHAI Yue, MA Guowei, HU Changming, ZHAO Junhai

Journal Article

Strength of tubular welded joints of roof trusses in Shanghai Qizhong Tennis Center

TONG Lewei, GU Min, CHEN Yiyi, ZHOU Liying, SUN Jiandong, CHEN Yangji, LIN Yingru, LIN Gao

Journal Article

Numerical investigation of the effectiveness of effusion cooling for plane multi-layer systems with different

Dieter BOHN, Robert KREWINKEL

Journal Article

Explicit finite element method for calculation and analysis to the elasto-plastic dynamic response of

LI Liang, DU Xiuli, LI Liyun, ZHAO Chenggang

Journal Article

Application of an efficient stochastic calculation method on the seismic analysis of an isolated structure

Wei GUO, Zhiwu YU

Journal Article

The calculation of equivalence factor for ecological footprints in China: a methodological note

Moucheng LIU,Wenhua LI,Dan ZAHNG,Ning SU

Journal Article

Unified calculation method and its application in determining the uniaxial mechanical properties of concrete

Faxing DING, Xiaoyong YING, Linchao ZHOU, Zhiwu YU

Journal Article

Calculation method of load distribution on pipe threaded connections under tension load

Shoujun CHEN, Lianxin GAO, Qi AN

Journal Article

Calculation on phase diagrams of polyetherimide/

Ming TAN,Gaohong HE,Yan DAI,Rujie WANG,Wenhua SHI

Journal Article

Heuristic solution using decision tree model for enhanced XML schema matching of bridge structural calculation

Sang I. PARK, Sang-Ho LEE

Journal Article

Fast emergency control strategy calculation based on dynamic equivalence and integral sensitivity

Yi-fan GAO, Jian-quan WANG, Tan-nan XIAO, Dao-zhuo JIANG

Journal Article

Analyses of the seismic responses of soil layers with deep deposits

LOU Menglin, LI Yuchun, LI Nansheng

Journal Article