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FINITE-ELEMENT: 作品数：80被引量：169H指数：8; 导出分析报告; 相关领域：理学更多>>; 相关作者：任政勇汤井田赵建国史瑞其邓居智更多>>; 相关机构：中南大学中国石油大学(北京)中国海洋石油研究总院中国石油大学（北京）更多>>; 相关期刊：更多>>; 相关基金：国家自然科学基金中国博士后科学基金国家重点基础研究发展计划国家高技术研究发展计划更多>>

Large-deformation finite-element modeling of seismic landslide runout: 3D probabilistic analysis with cross-correlated random field: 《Journal of Rock Mechanics and Geotechnical Engineering》2025年第1期385-398,共14页Xuejian Chen Shunping Ren Kai Yao Rita Leal Sousa; supported by the National Natural Science Foundation of China(Grant No.U22A20596);the Shenzhen Science and Technology Program(Grant No.GJHZ20220913142605010);the Jinan Lead Researcher Project(Grant No.202333051).; Landslides significantly threaten lives and infrastructure, especially in seismically active regions. This study conducts a probabilistic analysis of seismic landslide runout behavior, leveraging a large-deformation f...; 关键词：Landslide runout Large-deformation simulation CROSS-CORRELATION Runout distance Soil spatial variability Landslide hazard assessment

A Multiscale Model of Mass-Functionally Graded Beam-Fluid System Under Bending and Vibration Responses: 《Acta Mechanica Solida Sinica》2024年第2期327-340,共14页Lei Zhang Jianping Lin Jiaqing Jiang Guannan Wang; supported by the National Key Research and Development Program of China(No.2020YFA0711700);the National Natural Science Foundation of China(No.12322206,No.52378158,No.12302205);ZJU-ZCCC Institute of Collaborative Innovation(No.ZDJG2021002).; In this paper,a multiscale model is developed for the mass functionally graded(FG)beam-fluid system to investigate its static and dynamic responses based on 3D printed porous beam free vibration tests,which are determ...; 关键词：3D printed test Mass functionally graded beam-fluid system Multiscale model Local finite-element expressions Static bending Free vibration

Limit state analysis of rigid retaining structures against seismically induced passive failure in heterogeneous soils: 《Journal of Rock Mechanics and Geotechnical Engineering》2024年第3期1095-1105,共11页Jianfeng Zhou Changbing Qin; The research was financially supported by National Natural Science Foundation of China(Grant Nos.52108302 and 52009046);Fundamental Research Funds for the Central Universities of Hua-qiao University(Grant No.ZQN-914).; Soils are not necessarily uniform and may present linearly varied or layered characteristics,for example the backfilled soils behind rigid retaining walls.In the presence of large lateral thrust imposed by arch bridge...; 关键词：Retaining wall Passive earth pressure EARTHQUAKES Finite-element limit-analysis methods

Deep Learning Applied to Computational Mechanics:A Comprehensive Review,State of the Art,and the Classics被引量：1: 《Computer Modeling in Engineering & Sciences》2023年第11期1069-1343,共275页Loc Vu-Quoc Alexander Humer; Three recent breakthroughs due to AI in arts and science serve as motivation:An award winning digital image,protein folding,fast matrix multiplication.Many recent developments in artificial neural networks,particularl...; 关键词：Deep learning breakthroughs network architectures backpropagation stochastic optimization methods from classic to modern recurrent neural networks long short-term memory gated recurrent unit attention transformer kernel machines Gaussian processes libraries Physics-Informed Neural Networks state-of-the-art history limitations challenges Applications to computational mechanics Finite-element matrix integration improved Gauss quadrature Multiscale geomechanics fluid-filled porous media Fluid mechanics turbulence proper orthogonal decomposition Nonlinear-manifold model-order reduction autoencoder hyper-reduction using gappy data control of large deformable beam

Analysis on advanced transient EM detectability of coal mine roadway: 《Global Geology》2023年第3期177-188,共12页LING Hong LIU Yunhe MA Xinpeng; The hidden water-bearing structures near the roadway tunnelling face are very likely to cause water seepage accidents in coal mines.Currently,transient electromagnetic(EM)technology has be-come an important method to ...; 关键词：coal mine roadway transient EM time-domain finite-element advanced detection

Numerical study of the radio-frequency biased accelerating system in ion thrusters: 《Plasma Science and Technology》2023年第8期87-102,共16页白进纬曹勇李阳王开发田滨胡远; supported by the China Postdoctoral Science Foundation(No.2022M710977);National Natural Science Foundation of China(No.51907039);the Natural Science Foundation of Guangdong Province(Nos.2022A1515110215 and 2023A1515010137);Shenzhen Technology Projects(Nos.JCYJ20190806142603534 and ZDSYS201707280904031)。; A 2D-3V implicit immersed-finite-element particle-in-cell(IFE-PIC)model is introduced to investigate the radio-frequency(RF)self-bias accelerating system applied in the RF ion thruster.A set of holes in a two-grid sys...; 关键词：ion thruster radio-frequency biased grids implicit immersed-finite-element particlein-cell plasma plume

Structure-Preserving Finite-Element Schemes for the Euler-Poisson Equations: 《Communications in Computational Physics》2023年第3期647-691,共45页Matthias Maier John N.Shadid Ignacio Tomas; We discuss structure-preserving numerical discretizations for repulsive and attractive Euler-Poisson equations that find applications in fluid-plasma and selfgravitation modeling.The scheme is fully discrete and struc...; 关键词：Euler-Poisson equations operator splitting invariant domain preservation discrete energy balance.

Optical Trapping of a Single Molecule of Length Sub-1 nm in Solution被引量：1: 《CCS Chemistry》2023年第4期830-840,共11页Biao-Feng Zeng Ran Deng Yu-Ling Zou Chun-An Huo Jing-Yu Wang Wei-Ming Yang Qing-Man Liang Sheng-Jie Qiu Anni Feng Jia Shi Wenjing Hong Zhilin Yang Zhong-Qun Tian Yang Yang; supported by the National Natural Science Foundation of China(grant nos.T2222002,21973079,22032004,92161118,12174324,21991130,and 21905238);the Ministry of Science and Technology of the People’s Republic of China(grant no.2021YFA1201502);the Natural Science Foundation of Fujian Province(grant no.2021J06008).; Plasmonic optical manipulation has emerged as an affordable alternative to manipulate single chemical and biological molecules in nanoscience.Although the theoretical models of sub-5 nm single-molecule trapping have b...; 关键词：plasmon-enhanced trapping molecular junction mechanically controllable break junction finite-element simulation method single-molecule conductance measurement

Enhancing thermal conductivity of silicone rubber composites by insitu constructing SiC networks:A finite-element study based on first principles calculation被引量：1: 《Nano Research》2023年第1期1430-1440,共11页Dongliang Ding Shiyu Zhang Haoyu Liang Xu Wang Ya Wu Yuanming Ye Zhenguo Liu Qiuyu Zhang Guangzhao Qin Yanhui Chen; The authors gratefully acknowledge the financial support of this work by the National Natural Science Foundation of China(Nos.21978240,52003219,and 52006057);Youth project of basic research program of Natural Science in Shaanxi Province(No.2020JQ-179);the Fundamental Research Funds for the Central Universities(Nos.3102018AX004,3102017jc01001,and 531119200237);Shenzhen Xuni University Lab Construction Funding(No.YFJGJS1.0,20191024213117281);Guangdong Province Key Field R&D Project(No.2020B010178001);the student innovation fund of Northwestern Polytechnical University(No.202110699234);the Open Testing Foundation of the Analytical&Testing Center of Northwestern Polytechnical University(No.2020T020);the Innovation Foundation for Doctor Dissertation of Northwestern Polytechnical University(No.CX2022072).; Polymer composites as thermal interface materials have been widely used in modern electronic equipment.In this work,we report a novel method to prepare highly through-plane thermally conductive silicone rubber(SR)comp...; 关键词：silicon carbide fibers silicon carbide nanowires silicone rubber composites through-plane thermal conductivity first principles

无条件稳定FETD方法中亚网格技术的研究: 《电子学报》2022年第11期2799-2805,共7页王祎心魏兵范凯航李益文魏小龙; 国家自然科学基金(No.61901324,No.62001345);中国博士后科学基金(No.2019M653548,No.2019M663928XB);中央高校基本科研业务费(No.XJS200501,No.XJS200507,No.JB200501)。; 本文在时域有限元(Finite-Element Time-Domain,FETD)方法中实现了一种新型亚网格技术,并通过空间滤模(Spatial Modes Filtering,SMF)发展为无条件稳定亚网格FETD(Subgridding SMF-FETD,SSMF-FETD)方法.本文给出了FETD中亚网格技术的具...; 关键词：时域有限元(Finite-Element Time-Domain FETD) 无条件稳定特征值特征模式亚网格技术空间滤模

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