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An isogeometric numerical study of partially and fully implicit schemes for transient adjoint shape sensitivity analysis

Zhen-Pei WANG, Zhifeng XIE, Leong Hien POH

Frontiers of Mechanical Engineering 2020, Volume 15, Issue 2,   Pages 279-293 doi: 10.1007/s11465-019-0575-5

Abstract: In structural design optimization involving transient responses, time integration scheme plays a crucialthat (i) the explicit approach ( = 0) and semi-implicit approach with <0.5 impose a strict stability conditionIt is recommended to use for unconditional stability, such that the oscillation condition is much less

Keywords： isogeometric shape optimization     design-dependent boundary condition     transient heat conduction     implicit    

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Effects of Boundary Condition and Helix Angle on Meshing Performance of TI Worm Gearing

SUN Yue-hai, DUAN Lu-qian, WANG Shu-ren, ZHANG Ce

Frontiers of Mechanical Engineering 2006, Volume 1, Issue 1,   Pages 90-95 doi: 10.1007/s11465-005-0006-7

Abstract: state and contact area of tooth surface of toroidal involute (TI) worm gearing, the authors introduced boundarycondition into contact line analysis.With helix angle chosen as parameter, the criterion for the existenceof meshing boundary line on the surface of TI worm gearing is derived.Results show that there can be four situations for meshing boundary line on the tooth surface of gear, namely, inexistence of meshing boundary line, a unique line, two lines, and two coincident lines.

Keywords： preferable     inexistence     Results     validity     boundary condition    

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Study of an artificial boundary condition based on the damping-solvent extraction method

Qiang XU, Jianyun CHEN, Jing LI, Mingming WANG

Frontiers of Structural and Civil Engineering 2012, Volume 6, Issue 3,   Pages 281-287 doi: 10.1007/s11709-012-0167-5

Abstract: A new artificial boundary condition for time domain analysis of a structure-unlimited-foundation systemThe boundary condition was based on the damping-solvent extraction method.An artificial boundary condition was then established by setting two spring-damper systems and one artificialA test example was developed to verify that the proposed boundary condition and model had high precisionCompared with the damping-solvent extraction method, this boundary condition is easier to be applied

Keywords： damping-solvent extraction method     structure-unlimited-foundation system     spring-damper system     artificial damping limited region     finite element method    

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Ribbed strip rolling by three-dimensional finite element method combining extremely thin array of elements

Zhengyi JIANG,

Frontiers of Mechanical Engineering 2010, Volume 5, Issue 1,   Pages 52-60 doi: 10.1007/s11465-009-0087-9

Abstract: The formulation of the finite element modelling by adding a rib inclined contact surface boundary conditioninclined angle on pulling down of rib height has also been discussed, which is helpful in optimizing the design

Keywords： rib inclined contact boundary condition     ribbed strip     extremely thin elements     pulling down of rib height    

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Benzene removal by nano magnetic particles under continuous condition from aqueous solutions

Amin Mohammad Mehdi,Bina Bijan,Majd Amir Masoud Samani,Pourzamani Hamidreza

Frontiers of Environmental Science & Engineering 2014, Volume 8, Issue 3,   Pages 345-356 doi: 10.1007/s11783-013-0574-4

Abstract: removal from aqueous solutions was evaluated using Fe O nano magnetic particles (NM) in continuous conditionA 4 factorial design including initial benzene concentration, NM dose, contact time and pH was investigatedin 16 experiments (Taguchi OA design).The results indicated that all factors were significant and the optimum condition was: pH 8, NM dosecontinuous condition.

Keywords： benzene     experimental design     Fe3O4     continues condition     thermal recycling    

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A novel algorithm for frequency dependent modeling of ferrite ring and its optimum design to study VFTO

Mehrdad MAJIDI, Hamid JAVADI, Moein MANBACHI

Frontiers in Energy 2014, Volume 8, Issue 1,   Pages 90-100 doi: 10.1007/s11708-013-0286-2

Abstract: main advantage of this paper is its new proposed algorithm according to the ferrite ring frequency dependent

Keywords： comsol multiphysics     EMTP-RV     ferrite ring     gas insulated substations (GIS)     transient over-voltage     insulation coordination    

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Service Life Design for Concrete Engineering in Marine Environments of Northern China Based on a Modified Article

Taotao Feng, Hongfa Yu, Yongshan Tan, Haiyan Ma, Mei Xu, Chengjun Yue

Engineering 2022, Volume 17, Issue 10,   Pages 123-139 doi: 10.1016/j.eng.2021.03.030

Abstract: values, ranges, and types of distribution of the durability parameters employed for the durability designIn addition, the effects of the different time-varying relationships of the boundary condition (C/sub> continuously decreased and then remained stable) were beneficial for the durability design

Keywords： Large datasets     Modified theoretical model     Reliability theory     Service life     Boundary condition     Diffusion    

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Chemically reactive solute transfer in a boundary layer slip flow along a stretching cylinder

Swati Mukhopadhyay

Frontiers of Chemical Science and Engineering 2011, Volume 5, Issue 3,   Pages 385-391 doi: 10.1007/s11705-011-1101-4

Abstract: the distribution of a solute undergoing a first order chemical reaction in an axisymmetric laminar boundaryVelocity slip condition at the boundary is used instead of no-slip condition.

Keywords： boundary layer     stretching cylinder     partial slip     mass transfer     similarity solution    

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Data-driven approach to solve vertical drain under time-dependent loading

Frontiers of Structural and Civil Engineering 2021, Volume 15, Issue 3,   Pages 696-711 doi: 10.1007/s11709-021-0727-7

Abstract: , the vertical drain consolidation problem is solved by numerous analytical solutions, such as time-dependentDNN–GA prediction models with three different radial drainage patterns in the smear zone under time-dependent

Keywords： vertical drain     artificial neural network     time-dependent loading     deep learning network     genetic algorithm    

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Controlling nested wrinkle morphology through the boundary effect on narrow-band thin films

Hanyang XU, Tielin SHI, Guanglan LIAO, Qi XIA

Frontiers of Mechanical Engineering 2019, Volume 14, Issue 2,   Pages 235-240 doi: 10.1007/s11465-017-0458-6

Abstract: nano-scale wrinkles and the highly ordered morphology of micro-scale wrinkles were explained by using the boundary

Keywords： nested and hierarchical wrinkles     morphology     amplitude saturation     boundary effect    

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Approaching the upper boundary of driver-response relationships: identifying factors using a novel framework

Frontiers of Environmental Science & Engineering 2023, Volume 17, Issue 6, doi: 10.1007/s11783-023-1676-2

Abstract:

● A novel framework integrating quantile regression with machine learning is proposed.

Keywords： Driver-response     Upper boundary of relationship     Interpretable machine learning     Quantile regression    

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Comparison of indirect boundary element and finite element methods A case study: Shiraz-Esfahan railway

Amin MANOUCHEHRIAN, Mohammad Fatehi MARJI, Mohsen MOHEBBI

Frontiers of Structural and Civil Engineering 2012, Volume 6, Issue 4,   Pages 385-392 doi: 10.1007/s11709-012-0173-7

Abstract: such as finite element method (FEM), discrete element method (DEM), finite difference method (FDM) and boundaryThis paper suggests the implementation of the indirect boundary element method (IBEM) as a formulationIn rock mechanics, for problems with a low ratio of boundary surface to volume, FEM is not very well

Keywords： indirect boundary element method     finite element method     displacement     tunnel     case study    

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A review of condition-based maintenance: Its prognostic and operational aspects

Yanrong LI, Shizhe PENG, Yanting LI, Wei JIANG

Frontiers of Engineering Management 2020, Volume 7, Issue 3,   Pages 323-334 doi: 10.1007/s42524-020-0121-5

Abstract: Condition-based maintenance (CBM) detects early signs of failure and dictates when maintenance shouldbe performed based on the actual condition of a system.

Keywords： condition-based maintenance     prognostics     operational decision-making     reliability    

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Trend prediction technology of condition maintenance for large water injection units

Xiaoli XU, Sanpeng DENG

Frontiers of Mechanical Engineering 2010, Volume 5, Issue 2,   Pages 171-175 doi: 10.1007/s11465-009-0091-0

Abstract: Trend prediction technology is the key technology to achieve condition-based maintenance of mechanicalnormal operation of units and save maintenance costs, trend prediction technology is studied to achieve condition-basedindustrial site verification shows that the proposed trend prediction technology can reflect the operating conditiontrend change of the water injection units and provide technical means to achieve condition-based predictive

Keywords： water injection units     condition-based maintenance     trend prediction    

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Chloride binding and time-dependent surface chloride content models for fly ash concrete

S. MUTHULINGAM,B. N. RAO

Frontiers of Structural and Civil Engineering 2016, Volume 10, Issue 1,   Pages 112-120 doi: 10.1007/s11709-015-0322-x

Abstract: ingress parameter models for fly ash concrete, namely: 1) surface chloride content under tidal exposure condition

Keywords： binding isotherms     chloride ingress     concrete     fly ash     surface chloride content    

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Title Author Date Type Operation

An isogeometric numerical study of partially and fully implicit schemes for transient adjoint shape sensitivity analysis

Zhen-Pei WANG, Zhifeng XIE, Leong Hien POH

Journal Article

Effects of Boundary Condition and Helix Angle on Meshing Performance of TI Worm Gearing

SUN Yue-hai, DUAN Lu-qian, WANG Shu-ren, ZHANG Ce

Journal Article

Study of an artificial boundary condition based on the damping-solvent extraction method

Qiang XU, Jianyun CHEN, Jing LI, Mingming WANG

Journal Article

Ribbed strip rolling by three-dimensional finite element method combining extremely thin array of elements

Zhengyi JIANG,

Journal Article

Benzene removal by nano magnetic particles under continuous condition from aqueous solutions

Amin Mohammad Mehdi,Bina Bijan,Majd Amir Masoud Samani,Pourzamani Hamidreza

Journal Article

A novel algorithm for frequency dependent modeling of ferrite ring and its optimum design to study VFTO

Mehrdad MAJIDI, Hamid JAVADI, Moein MANBACHI

Journal Article

Service Life Design for Concrete Engineering in Marine Environments of Northern China Based on a Modified

Taotao Feng, Hongfa Yu, Yongshan Tan, Haiyan Ma, Mei Xu, Chengjun Yue

Journal Article

Chemically reactive solute transfer in a boundary layer slip flow along a stretching cylinder

Swati Mukhopadhyay

Journal Article

Data-driven approach to solve vertical drain under time-dependent loading

Journal Article

Controlling nested wrinkle morphology through the boundary effect on narrow-band thin films

Hanyang XU, Tielin SHI, Guanglan LIAO, Qi XIA

Journal Article

Approaching the upper boundary of driver-response relationships: identifying factors using a novel framework

Journal Article

Comparison of indirect boundary element and finite element methods A case study: Shiraz-Esfahan railway

Amin MANOUCHEHRIAN, Mohammad Fatehi MARJI, Mohsen MOHEBBI

Journal Article

A review of condition-based maintenance: Its prognostic and operational aspects

Yanrong LI, Shizhe PENG, Yanting LI, Wei JIANG

Journal Article

Trend prediction technology of condition maintenance for large water injection units

Xiaoli XU, Sanpeng DENG

Journal Article

Chloride binding and time-dependent surface chloride content models for fly ash concrete

S. MUTHULINGAM,B. N. RAO

Journal Article