Resource Type

Journal Article 947

Conference Videos 17

Year

2023 47

2022 62

2021 62

2020 69

2019 70

2018 46

2017 41

2016 30

2015 56

2014 46

2013 38

2012 39

2011 45

2010 45

2009 40

2008 35

2007 42

2006 44

2005 19

2004 19

open ︾

Keywords

finite element method 39

topology optimization 10

discrete element method 8

Monte Carlo method 7

technology foresight 7

finite element method (FEM) 6

artificial neural network 5

concrete 5

neural network 5

reliability 5

displacement 4

efficient 4

extension set 4

fault diagnosis 4

least square method 4

level set method 4

machine learning 4

monitoring 4

numerical simulation 4

open ︾

Search scope:

排序： Display mode:

Application of random set method in a deep excavation: based on a case study in Tehran cemented alluvium

Arash SEKHAVATIAN, Asskar Janalizadeh CHOOBBASTI

Frontiers of Structural and Civil Engineering 2019, Volume 13, Issue 1,   Pages 66-80 doi: 10.1007/s11709-018-0461-y

Abstract: deep excavation in layers of cemented coarse grained soil located in Tehran, Iran by non-deterministic RandomSet (RS) method.In order to enhance the acceptability of the method among engineers, a pertinent code was written in

Keywords： uncertainty     reliability analysis     deep excavations     random set method     finite difference method    

HTML PDF Collect

Level set band method: A combination of density-based and level set methods for the topology optimization

Peng WEI, Wenwen WANG, Yang YANG, Michael Yu WANG

Frontiers of Mechanical Engineering 2020, Volume 15, Issue 3,   Pages 390-405 doi: 10.1007/s11465-020-0588-0

Abstract: The level set method (LSM), which is transplanted from the computer graphics field, has been successfullyIn this study, a level set band method is proposed to overcome this drawback in handling topology changesin the level set framework.the continuity of objective and constraint functions by incorporating one parameter, namely, level setThe proposed method demonstrates a flexible topology change by applying a certain size of the level set

Keywords： level set method     topology optimization     density-based method     level set band    

HTML PDF Collect

Multiscale stochastic finite element method on random field modeling of geotechnical problems – a fast

Xi F. XU

Frontiers of Structural and Civil Engineering 2015, Volume 9, Issue 2,   Pages 107-113 doi: 10.1007/s11709-014-0268-4

Abstract: The Green-function-based multiscale stochastic finite element method (MSFEM) has been formulated basedIn this study a fast computing procedure based on the MSFEM is developed to solve random field geotechnicalsettlement shows that the procedure achieves significant computing efficiency compared with Monte Carlo method

Keywords： multiscale     finite element     settlement     perturbation     random field     geotechnical    

HTML PDF Collect

XFEM schemes for level set based structural optimization

Li LI, Michael Yu WANG, Peng WEI

Frontiers of Mechanical Engineering 2012, Volume 7, Issue 4,   Pages 335-356 doi: 10.1007/s11465-012-0351-2

Abstract:

In this paper, some elegant extended finite element method (XFEM) schemes for level set method structuralFirstly, two- dimension (2D) and three-dimension (3D) XFEM schemes with partition integral method areproposed XFEM is a promising structural analysis approach for structural optimization with the level setmethod.

Keywords： structural optimization     level set method     extended finite element method (XFEM)     computational accuracy    

HTML PDF Collect

Applying the spectral stochastic finite element method in multiple-random field RC structures

Abbas YAZDANI

Frontiers of Structural and Civil Engineering 2022, Volume 16, Issue 4,   Pages 434-447 doi: 10.1007/s11709-022-0820-6

Abstract: This paper uses the spectral stochastic finite element method (SSFEM) for analyzing reinforced concreteIn doing so, it presents a new framework to study how the correlation length of a random field (RF) with

Keywords： uncertainty     spectral stochastic finite element method     correlation length     reliability assessment     reinforced    

HTML PDF Collect

Analytical method of capsizing probability in the time domain for ships in the random beam seas

LIU Liqin, TANG Yougang, LI Hongxia

Frontiers of Structural and Civil Engineering 2007, Volume 1, Issue 3,   Pages 361-366 doi: 10.1007/s11709-007-0048-5

Abstract: The methods for constructing safe basins of ships and predicting their survival probability in randomThe nonlinear differential equation of the rolling motion of ships in random beam seas was establishedconsidering nonlinear damping, nonlinear restoring moment, and random waves.method and by synthetically considering the instantaneous state of ships and the narrowband wave energymethod.

Keywords： different     survival probability     different significant     nonlinear differential     narrowband    

HTML PDF Collect

Recent advances in multisensor multitarget tracking using random finite set Review Articles

Kai Da, Tiancheng Li, Yongfeng Zhu, Hongqi Fan, Qiang Fu,dktm131@163.com,t.c.li@nwpu.edu.cn,zoyofo@163.com,fanhongqi@nudt.edu.cn

Frontiers of Information Technology & Electronic Engineering 2021, Volume 22, Issue 1,   Pages 1-140 doi: 10.1631/FITEE.2000266

Abstract: In this study, we provide an overview of recent advances in multisensor based on the (RFS) approach. The fusion that plays a fundamental role in multisensor filtering is classified into data-level multitarget measurement fusion and estimate-level multitarget density fusion, which share and fuse local measurements and posterior densities between sensors, respectively. Important properties of each fusion rule including the optimality and sub-optimality are presented. In particular, two robust multitarget density-averaging approaches, arithmetic- and geometric-, are addressed in detail for various RFSs. Relevant research topics and remaining challenges are highlighted.

Keywords： Multitarget tracking     Multisensor fusion     Average fusion     Random finite set     Optimal fusion    

HTML PDF Collect

Level set-based isogeometric topology optimization for maximizing fundamental eigenfrequency

Manman XU, Shuting WANG, Xianda XIE

Frontiers of Mechanical Engineering 2019, Volume 14, Issue 2,   Pages 222-234 doi: 10.1007/s11465-019-0534-1

Abstract: In this study, we develop an isogeometric analysis (IGA)-based level set model for the formulation andThe proposed method is based on a combination of level set method and IGA technique, which uses the non-uniformgeometry representation, but also for IGA-based dynamic analysis and parameterization of the level setsurface, that is, the level set function.The validity and efficiency of the proposed method are illustrated by benchmark examples.

Keywords： topology optimization     level set method     isogeometric analysis     eigenfrequency    

HTML PDF Collect

Geometrically constrained isogeometric parameterized level-set based topology optimization via trimmed

Yingjun WANG,David J. BENSON

Frontiers of Mechanical Engineering 2016, Volume 11, Issue 4,   Pages 328-343 doi: 10.1007/s11465-016-0403-0

Abstract: The isogeometric parameterized level-set-based TO method, which directly uses the non-uniform rationalbasis splines (NURBS) for both level set function (LSF) parameterization and objective function calculationNumerical examples demonstrate the efficiency and flexibility of the method.

Keywords： isogeometric analysis     topology optimization     level set method     arbitrary geometric constraint     trimmed element    

HTML PDF Collect

Reliability assessment of three-dimensional bearing capacity of shallow foundation using fuzzy set theory

Rajarshi PRAMANIK, Dilip Kumar BAIDYA, Nirjhar DHANG

Frontiers of Structural and Civil Engineering 2021, Volume 15, Issue 2,   Pages 478-489 doi: 10.1007/s11709-021-0698-8

Abstract: reliability theory on surface square/rectangular footing against bearing capacity failure using fuzzy settheory in conjunction with the finite element method.

Keywords： finite element method     square footing     reliability analysis     fuzzy set theory     coefficient of variation     spatial    

HTML PDF Collect

A regularization scheme for explicit level-set XFEM topology optimization

Markus J. GEISS, Jorge L. BARRERA, Narasimha BODDETI, Kurt MAUTE

Frontiers of Mechanical Engineering 2019, Volume 14, Issue 2,   Pages 153-170 doi: 10.1007/s11465-019-0533-2

Abstract: Regularization of the level-set (LS) field is a critical part of LS-based topology optimization (TO)The SDF is obtained using the heat method (HM) and is reconstructed for every design in the optimizationdescribing the physical response of the system of interest, are discretized by the extended finite element method

Keywords： level-set regularization     explicit level-sets     XFEM     CutFEM     topology optimization     heat method     signed distance    

HTML PDF Collect

The Research of All-set Method in Market Intelligent Economy Controlling

Bao Jifeng,Liu Yang,He Zhongxiong

Strategic Study of CAE 2005, Volume 7, Issue 5,   Pages 84-89

Abstract:

This paper deals with the utilization of the all-set method and ME altering in the problem of marketThe authors alter the primary ME of economical body by means of all-set, jieke theory, vague controllingThe all-set theory contains such subjects as fuzzy set, vague set, extension set, SPA, FEEC.The authors combine these subjects and propose the all-set market intelligent economy controlling theory

Keywords： market economy     big system and all-set     the research of controlling method     practical examples    

HTML PDF Collect

Concurrent optimization of structural topology and infill properties with a CBF-based level set method

Long JIANG, Yang GUO, Shikui CHEN, Peng WEI, Na LEI, Xianfeng David GU

Frontiers of Mechanical Engineering 2019, Volume 14, Issue 2,   Pages 171-189 doi: 10.1007/s11465-019-0530-5

Abstract: In this paper, a parametric level-set-based topology optimization framework is proposed to concurrentlyThis overcomes the intrinsic disadvantage of the conventional RBF-based parametric level set method,A variational distance regularization method is utilized in this research to regularize the level setoptimization is conformally fit into the wrapping boundary layer using the shape-preserving conformal mapping methodThe proposed method is expected to provide a timely solution to the increasing demand for multiscale

Keywords： concurrent topology optimization     parametric level set method     cardinal basis function     shell-infill structure    

HTML PDF Collect

A Method of Constructing Fuzzy Neural Network Based on Rough Set Theory

Huang Xianming,Yi Jikai

Strategic Study of CAE 2004, Volume 6, Issue 4,   Pages 44-50

Abstract:

A new method of constructing fuzzy neural network is presented and Rough set theory is applied tothis method.Since Rough set theory has strong numeric analyzing ability and fuzzy neural network has exact functionFirst, some rules are acquired from given data set by rough set theory.in this paper, an example of nonlinear function approaching is discussed and the feasibility of this method

Keywords： fuzzy neural network     rough set     acquire rule     function approaching    

HTML PDF Collect

Enterprise technology innovation competence renewal method based on rough set

Miao Chenglin,Feng Junwen

Strategic Study of CAE 2011, Volume 13, Issue 9,   Pages 109-112

Abstract: behaviors under the new requests.This article studied enterprise technology innovation competence renewal methodunder the new requests based on rough set theory, acquiring the renewal order with the minimal expense

Keywords： technology innovation competence     renewal     rough set theory    

HTML PDF Collect

Title Author Date Type Operation

Application of random set method in a deep excavation: based on a case study in Tehran cemented alluvium

Arash SEKHAVATIAN, Asskar Janalizadeh CHOOBBASTI

Journal Article

Level set band method: A combination of density-based and level set methods for the topology optimization

Peng WEI, Wenwen WANG, Yang YANG, Michael Yu WANG

Journal Article

Multiscale stochastic finite element method on random field modeling of geotechnical problems – a fast

Xi F. XU

Journal Article

XFEM schemes for level set based structural optimization

Li LI, Michael Yu WANG, Peng WEI

Journal Article

Applying the spectral stochastic finite element method in multiple-random field RC structures

Abbas YAZDANI

Journal Article

Analytical method of capsizing probability in the time domain for ships in the random beam seas

LIU Liqin, TANG Yougang, LI Hongxia

Journal Article

Recent advances in multisensor multitarget tracking using random finite set

Kai Da, Tiancheng Li, Yongfeng Zhu, Hongqi Fan, Qiang Fu,dktm131@163.com,t.c.li@nwpu.edu.cn,zoyofo@163.com,fanhongqi@nudt.edu.cn

Journal Article

Level set-based isogeometric topology optimization for maximizing fundamental eigenfrequency

Manman XU, Shuting WANG, Xianda XIE

Journal Article

Geometrically constrained isogeometric parameterized level-set based topology optimization via trimmed

Yingjun WANG,David J. BENSON

Journal Article

Reliability assessment of three-dimensional bearing capacity of shallow foundation using fuzzy set theory

Rajarshi PRAMANIK, Dilip Kumar BAIDYA, Nirjhar DHANG

Journal Article

A regularization scheme for explicit level-set XFEM topology optimization

Markus J. GEISS, Jorge L. BARRERA, Narasimha BODDETI, Kurt MAUTE

Journal Article

The Research of All-set Method in Market Intelligent Economy Controlling

Bao Jifeng,Liu Yang,He Zhongxiong

Journal Article

Concurrent optimization of structural topology and infill properties with a CBF-based level set method

Long JIANG, Yang GUO, Shikui CHEN, Peng WEI, Na LEI, Xianfeng David GU

Journal Article

A Method of Constructing Fuzzy Neural Network Based on Rough Set Theory

Huang Xianming,Yi Jikai

Journal Article

Enterprise technology innovation competence renewal method based on rough set

Miao Chenglin,Feng Junwen

Journal Article