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Evaluation of a novel Asymmetric Genetic Algorithm to optimize the structural design of 3D regular and irregular steel frames

Mohammad Sadegh ES-HAGHI, Aydin SHISHEGARAN, Timon RABCZUK

Frontiers of Structural and Civil Engineering 2020, Volume 14, Issue 5,   Pages 1110-1130 doi: 10.1007/s11709-020-0643-2

Abstract: The objective function is to minimize the weight of the whole steel structure under the constraint of ultimate

Keywords： optimization     steel frame     Asymmetric Genetic Algorithm     constraints of ultimate load     constraints of serviceability    

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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-orderwhen the Hessian matrix composed of the second-order partial derivatives on the hypersurface about the ultimatecapacity state of a complex structure can be made on the basis of several points on the surface of the ultimate

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

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Ultimate load analysis of pretensioned inverted T-beams with circular web openings

Hock Tian CHENG , Bashar S. MOHAMMED , Kamal Nasharuddin MUSTAPHA ,

Frontiers of Structural and Civil Engineering 2009, Volume 3, Issue 3,   Pages 262-271 doi: 10.1007/s11709-009-0031-4

Abstract: In this paper, ultimate load analysis of statically loaded simply supported pretensioned inverted T-beamsMajor findings relevant to ultimate load analysis of pretensioned beams with circular web openings areAn attempt has been made to answer the frequently asked questions related to ultimate load analysis on

Keywords： pretensioned inverted T-beam     web opening    

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Independent continuous and mapping method of structural topology optimization based on the global stress approach

Yunkang SUI, Jili FENG, Hongling YE, Xirong PENG,

Frontiers of Mechanical Engineering 2010, Volume 5, Issue 2,   Pages 130-142 doi: 10.1007/s11465-010-0011-3

Abstract: three difficulties in topology optimization of continuum structures. 1) The topology under multiple loadobjective based on compliance objective functions. 2) With local constraints, such as an elemental stresslimit, the topology is more difficult to be solved than with global constraints, such as the displacementcontinuous mapping (ICM) method. 2) Based on the von Mises strength theory, all elements’ stress constraintsfor local stresses constraints, and the problem of load illness can be solved well by the weighting

Keywords： independent continuous mapping (ICM) method     global stresses constraints     topology optimization     continuumstructure     load illness    

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The influence of hand hole on the ultimate strength and crack pattern of shield tunnel segment joints

Shaochun WANG, Xi JIANG, Yun BAI

Frontiers of Structural and Civil Engineering 2019, Volume 13, Issue 5,   Pages 1200-1213 doi: 10.1007/s11709-019-0546-2

Abstract: The segment joint with MSSF shows higher ultimate bearing capacity and toughness compared to segmentBesides, the MSSF improves the initial cracking load and anti-spallling resistance of the segment joint

Keywords： shield tunneling     structural synthetic fiber concrete     hand hole     segment joint     ultimate bearing capacity    

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Numerical investigation of the ultimate lateral resistance of piles in soft clay

Konstantinos P. TZIVAKOS,Michael J. KAVVADAS

Frontiers of Structural and Civil Engineering 2014, Volume 8, Issue 2,   Pages 194-200 doi: 10.1007/s11709-014-0251-0

Abstract: imported into a beam-on-nonlinear-Winkler-foundation simulation in order to predict the pile head lateral load—displacementThe determination of the ultimate soil resistance from the results of the finite element analyses aimsat providing the estimation of a range of values for the ultimate soil resistance coefficient with

Keywords： laterally loaded     pile     soft clay     p?y curves     finite element method (FEM)    

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Parametric analysis and design equation of ultimate capacity for unstiffened overlapped CHS K-joints

CHEN Yu, ZHAO Xianzhong, CHEN Yiyi

Frontiers of Structural and Civil Engineering 2008, Volume 2, Issue 2,   Pages 107-115 doi: 10.1007/s11709-008-0014-x

Abstract: unstiffened, overlapped circular hollow structure (CHS) K-joints was generated and validated by comparing the ultimategeometric parameters, with or without hidden welds, and the loading hierarchy reversal of braces on the ultimateindicate that the brace-to-chord thickness ratio has relatively large effects on the failure mechanism and ultimateIt was also found that the absence of hidden welds has less significance on the ultimate capacity ofFinally, based on the design equation of gap joints, a formula predicting the ultimate capacity of overlapped

Keywords： regression analysis     consistent     unstiffened     plasticity     overlapped    

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Analysis of inventory level under procurement constraints in supply chain

CHANG Guangshu

Frontiers of Mechanical Engineering 2007, Volume 2, Issue 3,   Pages 361-363 doi: 10.1007/s11465-007-0063-1

Abstract: Then, the change of the inventory level with and without the procurement constraints is analyzed, and

Keywords： supply     efficient reduction     system     expectation     procurement    

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models to explore the solution space of large nonlinear systems underlying flowsheet simulations with constraints

Frontiers of Chemical Science and Engineering 2022, Volume 16, Issue 2,   Pages 183-197 doi: 10.1007/s11705-021-2073-7

Abstract: Additional constraints from technical, economic, environmental, and safety considerations may furtherA priori, the design variable domains for which a simulation converges and fulfills the imposed constraintsHowever, that approach only considers the exploration of the convergent domain and ignores additional constraintsIn this paper, we present an improvement which particularly takes the fulfillment of constraints into

Keywords： machine learning     flowsheet simulations     constraints     exploration    

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Resilience strategies for sustainable supply chains under budget constraints in the post COVID-19 era

Frontiers of Engineering Management   Pages 143-157 doi: 10.1007/s42524-022-0236-y

Abstract: Therefore, the design of resilience solutions needs to fully consider the constraints of budgetary costsMost of the existing related literature only discusses optimal resilience solutions under certain cost constraintssatisfaction as indicators, to determine the changing laws of optimal resilience strategies when cost constraints

Keywords： sustainable supply chain     customer requirement     resilience efficiency     customer satisfaction     budget constraint    

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Estimation of composite load model with aggregate induction motor dynamic load for an isolated hybrid

Nitin Kumar SAXENA,Ashwani Kumar SHARMA

Frontiers in Energy 2015, Volume 9, Issue 4,   Pages 472-485 doi: 10.1007/s11708-015-0373-7

Abstract: The composite load is a combination of the static and dynamic load model.To develop this composite load model, the exponential load is used as a static load model and inductionmotors (IMs) are used as a dynamic load model.This aggregate model is used as a dynamic load model.exponential model of static load and for the fifth and third order IM dynamic load model using state

Keywords： isolated hybrid power system (IHPS)     composite load model     static load     dynamic load     induction motor loadmodel     aggregate load    

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emission reduction targets with minimum abatement costs: An enterprise-level allocation method with constraints

Frontiers of Environmental Science & Engineering 2022, Volume 16, Issue 2, doi: 10.1007/s11783-021-1459-6

Abstract:

• Quantification of efficiency and fairness of abatement allocation are optimized.

Keywords： Pollutant emission reduction allocation     Emission reduction measures     Total abatement cost     Economic efficiency     Abatement space    

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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 threadedconnections under tension load.the new method on the sample of P-110S pipe threaded connection, the obtained results show that the loadThe model offers a new way to calculate the loads carried on the thread teeth under tension load.

Keywords： load distribution     calculation method     pipe threaded connections     tension load    

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Operation and control of flow manufacturing based on constraints management for high-mix/low-volume production

GUAN Zailin, PENG Yunfang, MA Li, ZHANG Chaoyong, LI Peigen

Frontiers of Mechanical Engineering 2008, Volume 3, Issue 4,   Pages 454-461 doi: 10.1007/s11465-008-0083-5

Abstract: The application of different theories of constraints/drum-buffer-rope (TOC/DBR) control policies depends

Keywords： appropriate     management technology     scheduling     technology     different    

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Comparison of optimal capacitor placement methods in radial distribution system with load growth andZIP load model

Veera Venkata Satya Naryana MURTY, Ashwani KUMAR

Frontiers in Energy 2013, Volume 7, Issue 2,   Pages 197-213 doi: 10.1007/s11708-013-0249-7

Abstract: Furthermore, the load growth factor has been considered in the study which is essential for the planningand expansion of the existing systems, whereas the impact of the realistic load model as ZIP load model

Keywords： load growth     load models     reactive power compensation     radial distribution system     power loss index (PLI)    

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Title Author Date Type Operation

Evaluation of a novel Asymmetric Genetic Algorithm to optimize the structural design of 3D regular and irregular steel frames

Mohammad Sadegh ES-HAGHI, Aydin SHISHEGARAN, Timon RABCZUK

Journal Article

The convexity about ultimate bearing hypersurfaces of structures

Chengxi GUO,Tingting GUO

Journal Article

Ultimate load analysis of pretensioned inverted T-beams with circular web openings

Hock Tian CHENG , Bashar S. MOHAMMED , Kamal Nasharuddin MUSTAPHA ,

Journal Article

Independent continuous and mapping method of structural topology optimization based on the global stress approach

Yunkang SUI, Jili FENG, Hongling YE, Xirong PENG,

Journal Article

The influence of hand hole on the ultimate strength and crack pattern of shield tunnel segment joints

Shaochun WANG, Xi JIANG, Yun BAI

Journal Article

Numerical investigation of the ultimate lateral resistance of piles in soft clay

Konstantinos P. TZIVAKOS,Michael J. KAVVADAS

Journal Article

Parametric analysis and design equation of ultimate capacity for unstiffened overlapped CHS K-joints

CHEN Yu, ZHAO Xianzhong, CHEN Yiyi

Journal Article

Analysis of inventory level under procurement constraints in supply chain

CHANG Guangshu

Journal Article

models to explore the solution space of large nonlinear systems underlying flowsheet simulations with constraints

Journal Article

Resilience strategies for sustainable supply chains under budget constraints in the post COVID-19 era

Journal Article

Estimation of composite load model with aggregate induction motor dynamic load for an isolated hybrid

Nitin Kumar SAXENA,Ashwani Kumar SHARMA

Journal Article

emission reduction targets with minimum abatement costs: An enterprise-level allocation method with constraints

Journal Article

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

Shoujun CHEN, Lianxin GAO, Qi AN

Journal Article

Operation and control of flow manufacturing based on constraints management for high-mix/low-volume production

GUAN Zailin, PENG Yunfang, MA Li, ZHANG Chaoyong, LI Peigen

Journal Article

Comparison of optimal capacitor placement methods in radial distribution system with load growth andZIP load model

Veera Venkata Satya Naryana MURTY, Ashwani KUMAR

Journal Article