Resource Type

Journal Article 17

Year

2023 1

2022 3

2021 1

2020 2

2017 1

2016 2

2014 1

2012 1

2009 2

2008 1

2007 1

open ︾

Keywords

vibration 2

Algebraic Method (AGM) 1

Antibiotic contamination 1

Backscatter 1

Box deck of bridge 1

CFD model of viscous damper 1

Charging mode 1

Charging time 1

FLAC3D 1

IoT networks 1

Large-scale sectional model 1

Long short-term memory (LSTM) 1

MC-CDMA 1

Machine learning 1

Random forest 1

Simplified nonlinear model 1

Simplified particle swarm optimization (SPSO) 1

Spectral detection 1

Synchronous measurement of force and 1

open ︾

Search scope:

排序： Display mode:

A simplified method for investigating the bending behavior of piles supporting embankments on soft ground

Frontiers of Structural and Civil Engineering   Pages 1021-1032 doi: 10.1007/s11709-023-0952-3

Abstract: In recent years, concrete and reinforced concrete piles have been widely used to stabilize soft ground under embankments. Previous research has shown that bending failure, particularly during rapid filling on soft ground, is the critical failure mode for pile-supported embankments. Here, we propose an efficient two-stage method that combines a test-verified soil deformation mechanism and Poulos’ solution for pile–soil interaction to investigate the bending behavior of piles supporting embankments on soft ground. The results reveal that there are three possible bending failure scenarios for such piles: at the interface between the soft and firm ground layers, at mid-depths of the fan zone, and at the boundary of the soil deformation mechanism. The location of the bending failure depends on the position and relative stiffness of the given pile. Furthermore, the effect of embedding a pile into a firm ground layer on the bending behavior was investigated. When the embedded length of a pile exceeded a critical value, the bending moment at the interface between the soft and firm ground layers reached a limiting value. In addition, floating piles that are not embedded exhibit an overturning pattern of movement in the soft ground layer, and a potential failure is located in the upper part of these piles.

Keywords： bending behavior     pile     embankment     soil−structure interaction     failure mode    

HTML PDF Collect

Improvement of aerodynamic stability of suspension bridges with H-shaped simplified stiffening girder

Hiroshi KATSUCHI,Hitoshi YAMADA,Mayuko NISHIO,Yoko OKAZAKI

Frontiers of Structural and Civil Engineering 2016, Volume 10, Issue 1,   Pages 93-102 doi: 10.1007/s11709-015-0311-0

Abstract: Wind-tunnel study on the improvement of aerodynamic stability of simplified suspension-bridge girder

Keywords： suspension bridge     aerodynamics     simplified girder     wind-tunnel test    

HTML PDF Collect

Oscillation frequency of simplified arterial tubes

Hui AN, Fan HE, Lingxia XING, Xiaoyang LI

Frontiers of Mechanical Engineering 2009, Volume 4, Issue 3,   Pages 300-304 doi: 10.1007/s11465-009-0038-5

Abstract: To construct the spatial kinetic equation of an arterial tube and obtain its radial natural frequency, a linear-elastic and small deformation condition is assumed. The theoretical analysis is first presented and the finite element method is then used to numerically simulate the spatial kinematics. The results show that the first-order frequency is 15.8 Hz and the obtained exact analytical solutions agree well with numerical solutions, which proves that the theoretical analysis and numerical simulation are both correct.

Keywords： spatial kinematics     natural frequency     finite element method    

HTML PDF Collect

A fast antibiotic detection method for simplified pretreatment through spectra-based machine learning

Frontiers of Environmental Science & Engineering 2022, Volume 16, Issue 3, doi: 10.1007/s11783-021-1472-9

Abstract:

• A spectral machine learning approach is proposed for predicting mixed antibiotic.

Keywords： Antibiotic contamination     Spectral detection     Machine learning    

HTML PDF Collect

Analyzing the nonlinear vibrational wave differential equation for the simplified model of Tower Cranes

M.R. AKBARI,D.D. GANJI,A.R. AHMADI,Sayyid H. Hashemi KACHAPI

Frontiers of Mechanical Engineering 2014, Volume 9, Issue 1,   Pages 58-70 doi: 10.1007/s11465-014-0289-7

Abstract:

In the current paper, a simplified model of Tower Cranes has been presented in order to investigate

Keywords： Algebraic Method (AGM)     tower crane     oscillating system     angular frequency    

HTML PDF Collect

A simplified model of direct-contact heat transfer in desalination system utilizing LNG cold energy

Qingqing SHEN, Wensheng LIN, Anzhong GU, Yonglin JU

Frontiers in Energy 2012, Volume 6, Issue 2,   Pages 122-128 doi: 10.1007/s11708-012-0175-0

Abstract: A simplified model of the direct-contact heat transfer in this desalination system is proposed and theoretical

Keywords： liquefied natural gas (LNG)     cold energy utilization     desalination     direct-contact heat transfer    

HTML PDF Collect

Development of a simplified n-heptane/methane model for high-pressure direct-injection natural

Jingrui LI, Haifeng LIU, Xinlei LIU, Ying YE, Hu WANG, Xinyan WANG, Hua ZHAO, Mingfa YAO

Frontiers in Energy 2021, Volume 15, Issue 2,   Pages 405-420 doi: 10.1007/s11708-021-0718-3

Abstract: High-pressure direct-injection (HPDI) of natu-ral gas is one of the most promising solutions for future ship engines, in which the combustion process is mainly controlled by the chemical kinetics. However, the employment of detailed chemical models for the multi-dimensional combustion simulation is significantly expensive due to the large scale of the marine engine. In the present paper, a reduced -heptane/methane model consisting of 35-step reactions was constructed using multiple reduction approaches. Then this model was further reduced to include only 27 reactions by utilizing the HyChem (Hybrid Chemistry) method. An overall good agreement with the experimentally measured ignition delay data of both -heptane and methane for these two reduced models was achieved and reasonable predictions for the measured laminar flame speeds were obtained for the 35-step model. But the 27-step model cannot predict the laminar flame speed very well. In addition, these two reduced models were both able to reproduce the experimentally measured in-cylinder pressure and heat release rate profiles for a HPDI natural gas marine engine, the highest error of predicted combustion phase being 6.5%. However, the engine-out CO emission was over-predicted and the highest error of predicted NO emission was less than 12.9%. The predicted distributions of temperature and equivalence ratio by the 35-step and 27-step models are similar to those of the 334-step model. However, the predicted distributions of OH and CH O are significantly different from those of the 334-step model. In short, the reduced chemical kinetic models developed provide a high-efficient and dependable method to simulate the characteristics of combustion and emissions in HPDI natural gas marine engines.

Keywords： high-pressure direct-injection     natural gas     chemical kinetics     combustion modelling     marine engine    

HTML PDF Collect

Simplified Instruction Set Architecture Accelerates Chip Development— and Wins the 2022 Draper Prize

Chris Palmer

Engineering 2022, Volume 17, Issue 10,   Pages 7-9 doi: 10.1016/j.eng.2022.08.003

HTML PDF Collect

A simplified method for the determination of vertically loaded pile-soil interface parameters in layered

Jiu-jiang WU,Yan LI,Qian-gong CHENG,Hua WEN,Xin LIANG

Frontiers of Structural and Civil Engineering 2016, Volume 10, Issue 1,   Pages 103-111 doi: 10.1007/s11709-015-0328-4

Abstract: Then, a simplified method for the determination of pile-soil interface parameters in layered soil isFinally, a filed loading test is used for the validation of the simplified method, and the calculatedIn general, the simplified method proposed in this paper works with higher accuracy and consumes less

Keywords： determination of interface parameters     pile-soil interaction     FLAC3D     sensitivity analysis     layered soil    

HTML PDF Collect

Control mode selection for modal control of long-span arch bridge

Zhengying LI, Zhengliang LI,

Frontiers of Structural and Civil Engineering 2009, Volume 3, Issue 4,   Pages 401-406 doi: 10.1007/s11709-009-0052-z

Abstract: The time domain and frequency domain analysis method were used to verify the simplified model of the

Keywords： selection     reduced-order     excitation     long-span     simplified    

HTML PDF Collect

Evaluation of a developed bypass viscous damper performance

Mahrad FAHIMINIA, Aydin SHISHEGARAN

Frontiers of Structural and Civil Engineering 2020, Volume 14, Issue 3,   Pages 773-791 doi: 10.1007/s11709-020-0627-2

Abstract: According to experimental results, Computational Fluid Dynamic (CFD) model, a numerical formula and the simplifiedAlso, a simplified procedure is proposed to design structures with bypass viscous dampers.

Keywords： developed viscous damper     external orifice     energy dissipation     seismic behavior     CFD model of viscous damper     a simplified    

HTML PDF Collect

Simplified analytical solution for free vibration characteristics of Hardfill dam

XIAO Wei, HE Yunlong, ZHANG Yanfeng

Frontiers of Structural and Civil Engineering 2008, Volume 2, Issue 3,   Pages 219-225 doi: 10.1007/s11709-008-0037-3

Abstract: Formulas for computing natural frequencies and modes of Hardfill dams are derived based on one-dimensional shear wedge theory, in which the influences of the upstream concrete face and hydrodynamic pressure of water on the dams’ natural frequencies and modes are discussed. Furthermore, the seismic responses of Hardfill dams are calculated using response spectrum method. An example is analyzed to compare the differences of natural frequencies and modes between shear wedge method and FEM. Then the applicability and accuracy of shear wedge method to analyze free vibration characteristics of Hardfill dams are proven.

Keywords： upstream concrete     hydrodynamic pressure     vibration     one-dimensional     applicability    

HTML PDF Collect

Simplified theoretical analysis and numerical study on the dynamic behavior of FCP under blast loads

Chunfeng ZHAO, Xin YE, Avinash GAUTAM, Xin LU, Y. L. MO

Frontiers of Structural and Civil Engineering 2020, Volume 14, Issue 4,   Pages 983-997 doi: 10.1007/s11709-020-0633-4

Abstract: Finally, a simplified theoretical model of the FCP under blast load is developed to predict the maximum

Keywords： precast structure     fabricated concrete panel     blast resistance     theory model     empirical equation    

HTML PDF Collect

A Simplified Nonlinear Model of Vertical Vortex-Induced Force on Box Decks for Predicting Stable Amplitudes

Le-Dong Zhu, Xiao-Liang Meng, Lin-Qing Du, Ming-Chang Ding

Engineering 2017, Volume 3, Issue 6,   Pages 854-862 doi: 10.1016/j.eng.2017.06.001

Abstract: On these bases, a universal simplified nonlinear mathematical model of the vertical VIF on box decks

Keywords： Box deck of bridge     Vertical vortex-induced vibration     Vertical vortex-induced force     Simplified nonlinear    

HTML PDF Collect

Blind Multi-user Detection Based on Simplified LSCMA in STBC Coded MC－CDMA Systems

Xiong Yilan,Li Guangzeng

Strategic Study of CAE 2007, Volume 9, Issue 5,   Pages 42-45

Abstract: The algorithm proposed in the paper as a simplified version of the algorithm based on the least square

Keywords： space time block code     MC-CDMA     constant modulus algorithm     blind multi_user detection    

HTML PDF Collect

Title Author Date Type Operation

A simplified method for investigating the bending behavior of piles supporting embankments on soft ground

Journal Article

Improvement of aerodynamic stability of suspension bridges with H-shaped simplified stiffening girder

Hiroshi KATSUCHI,Hitoshi YAMADA,Mayuko NISHIO,Yoko OKAZAKI

Journal Article

Oscillation frequency of simplified arterial tubes

Hui AN, Fan HE, Lingxia XING, Xiaoyang LI

Journal Article

A fast antibiotic detection method for simplified pretreatment through spectra-based machine learning

Journal Article

Analyzing the nonlinear vibrational wave differential equation for the simplified model of Tower Cranes

M.R. AKBARI,D.D. GANJI,A.R. AHMADI,Sayyid H. Hashemi KACHAPI

Journal Article

A simplified model of direct-contact heat transfer in desalination system utilizing LNG cold energy

Qingqing SHEN, Wensheng LIN, Anzhong GU, Yonglin JU

Journal Article

Development of a simplified n-heptane/methane model for high-pressure direct-injection natural

Jingrui LI, Haifeng LIU, Xinlei LIU, Ying YE, Hu WANG, Xinyan WANG, Hua ZHAO, Mingfa YAO

Journal Article

Simplified Instruction Set Architecture Accelerates Chip Development— and Wins the 2022 Draper Prize

Chris Palmer

Journal Article

A simplified method for the determination of vertically loaded pile-soil interface parameters in layered

Jiu-jiang WU,Yan LI,Qian-gong CHENG,Hua WEN,Xin LIANG

Journal Article

Control mode selection for modal control of long-span arch bridge

Zhengying LI, Zhengliang LI,

Journal Article

Evaluation of a developed bypass viscous damper performance

Mahrad FAHIMINIA, Aydin SHISHEGARAN

Journal Article

Simplified analytical solution for free vibration characteristics of Hardfill dam

XIAO Wei, HE Yunlong, ZHANG Yanfeng

Journal Article

Simplified theoretical analysis and numerical study on the dynamic behavior of FCP under blast loads

Chunfeng ZHAO, Xin YE, Avinash GAUTAM, Xin LU, Y. L. MO

Journal Article

A Simplified Nonlinear Model of Vertical Vortex-Induced Force on Box Decks for Predicting Stable Amplitudes

Le-Dong Zhu, Xiao-Liang Meng, Lin-Qing Du, Ming-Chang Ding

Journal Article

Blind Multi-user Detection Based on Simplified LSCMA in STBC Coded MC－CDMA Systems

Xiong Yilan,Li Guangzeng

Journal Article