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Observation of black carbon aerosol in Beijing, 2003
LOU Shujuan, MAO Jietai, WANG Meihua
《环境科学与工程前沿(英文)》 2007年 第1卷 第3期 页码 345-349 doi: 10.1007/s11783-007-0059-4
关键词: carbon concentration Beijing tapered element August aethalometer
刘劲军,夏新涛,张立红
《中国工程科学》 2008年 第10卷 第7期 页码 112-117
以30204型圆锥滚子轴承试验数据为基础,利用灰色模糊聚类分析方法对影响圆锥滚子轴承振动的 因素进行了综合分析,将圆锥滚子轴承各项参数按其对振动的影响分为三类:第一类对振动的影响最大,其 中包括滚子凸度、滚子直径偏差Dw 等参数;第二类对振动的影响较大,其中包括内滚道圆度,内滚道直线性 Li 等参数;第三类对振动的影响最小,其中包括内滚道波纹度,内滚道的角度偏差Δ2β 等参数。根据分类可 知,试验中圆锥滚子轴承的大部分参数都会对振动产生较大的影响。
LIANG Xinhua, ZHU Ping, LIN Zhongqin, ZHANG Yan
《机械工程前沿(英文)》 2007年 第2卷 第1期 页码 99-103 doi: 10.1007/s11465-007-0017-7
关键词: harshness automotive prototype structural optimization vibration efficient
Thermal buckling behavior of laminated composite plates: a finite-element study
Houdayfa OUNIS,Abdelouahab TATI,Adel BENCHABANE
《机械工程前沿(英文)》 2014年 第9卷 第1期 页码 41-49 doi: 10.1007/s11465-014-0284-z
In this paper, the thermal buckling behavior of composite laminated plates under a uniform temperature distribution is studied. A finite element of four nodes and 32 degrees of freedom (DOF), previously developed for the bending and mechanical buckling of laminated composite plates, is extended to investigate the thermal buckling behavior of laminated composite plates. Based upon the classical plate theory, the present finite element is a combination of a linear isoparametric membrane element and a high precision rectangular Hermitian element. The numerical implementation of the present finite element allowed the comparison of the numerical obtained results with results obtained from the literature: 1) with element of the same order, 2) the first order shear deformation theory, 3) the high order shear deformation theory and 4) the three-dimensional solution. It was found that the obtained results were very close to the reference results and the proposed element offers a good convergence speed. Furthermore, a parametrical study was also conducted to investigate the effect of the anisotropy of composite materials on the critical buckling temperature of laminated plates. The study showed that: 1) the critical buckling temperature generally decreases with the increasing of the modulus ratio EL/ET and thermal expansion ratio αT/αL, and 2) the boundary conditions and the orientation angles significantly affect the critical buckling temperature of laminated plates.
关键词: thermal buckling laminated composite plates anisotropy critical buckling temperature finite-element method high precision rectangular Hermitian element
Special Column on Multiscale Stochastic Finite Element Method
《结构与土木工程前沿(英文)》 2015年 第9卷 第2期 页码 105-106 doi: 10.1007/s11709-015-0297-7
Amin MANOUCHEHRIAN, Mohammad Fatehi MARJI, Mohsen MOHEBBI
《结构与土木工程前沿(英文)》 2012年 第6卷 第4期 页码 385-392 doi: 10.1007/s11709-012-0173-7
关键词: indirect boundary element method finite element method displacement tunnel case study
Finite element analysis of controlled low strength materials
Vahid ALIZADEH
《结构与土木工程前沿(英文)》 2019年 第13卷 第5期 页码 1243-1250 doi: 10.1007/s11709-019-0553-3
关键词: CLSM finite element method compressive strength pullout numerical modeling plastic damage model
Gui-Rong Liu
《结构与土木工程前沿(英文)》 2019年 第13卷 第2期 页码 456-477 doi: 10.1007/s11709-019-0519-5
The smoothed finite element method (S-FEM) was originated by G R Liu by combining some meshfree techniques with the well-established standard finite element method (FEM). It has a family of models carefully designed with innovative types of smoothing domains. These models are found having a number of important and theoretically profound properties. This article first provides a concise and easy-to-follow presentation of key formulations used in the S-FEM. A number of important properties and unique features of S-FEM models are discussed in detail, including 1) theoretically proven softening effects; 2) upper-bound solutions; 3) accurate solutions and higher convergence rates; 4) insensitivity to mesh distortion; 5) Jacobian-free; 6) volumetric-locking-free; and most importantly 7) working well with triangular and tetrahedral meshes that can be automatically generated. The S-FEM is thus ideal for automation in computations and adaptive analyses, and hence has profound impact on AI-assisted modeling and simulation. Most importantly, one can now purposely design an S-FEM model to obtain solutions with special properties as wish, meaning that S-FEM offers a framework for design numerical models with desired properties. This novel concept of numerical model on-demand may drastically change the landscape of modeling and simulation. Future directions of research are also provided.
关键词: computational method finite element method smoothed finite element method strain smoothing technique smoothing domain weakened weak form solid mechanics softening effect upper bound solution
Finite element modeling of thermo-active diaphragm walls
Yi RUI, Mei YIN
《结构与土木工程前沿(英文)》 2020年 第14卷 第3期 页码 646-663 doi: 10.1007/s11709-020-0584-9
关键词: thermo-active diaphragm wall finite element analysis thermo-hydro-mechanical coupling ground source heat pump
Yunlin LIU, Shitao ZHU
《结构与土木工程前沿(英文)》 2019年 第13卷 第5期 页码 1095-1104 doi: 10.1007/s11709-019-0538-2
关键词: PCS concrete side joint numerical simulation fiber-beam element joint model solid element joint model seismic behavior
Finite element analysis of creep for plane steel frames in fire
Hui ZHU, Yuching WU
《结构与土木工程前沿(英文)》 2012年 第6卷 第3期 页码 297-307 doi: 10.1007/s11709-012-0162-x
关键词: creep plane steel frame fire finite element method geometric nonlinearity
Zhigang GUO, Zhi SUN
《结构与土木工程前沿(英文)》 2011年 第5卷 第4期 页码 458-464 doi: 10.1007/s11709-011-0133-7
关键词: PZT piezoelectric impedance optimization spectral element damage identification
《结构与土木工程前沿(英文)》 doi: 10.1007/s11709-023-0035-5
Strain localization analyses of idealized sands in biaxial tests by distinct element method
Mingjing JIANG, Hehua ZHU, Xiumei LI,
《结构与土木工程前沿(英文)》 2010年 第4卷 第2期 页码 208-222 doi: 10.1007/s11709-010-0025-2
关键词: idealized sand strain localization numerical analyses distinct element method (DEM)
《化学科学与工程前沿(英文)》 2022年 第16卷 第6期 页码 874-885 doi: 10.1007/s11705-021-2131-1
关键词: discrete element method cohesive materials parameter calibration ring shear cell design of experiments
标题 作者 时间 类型 操作
Acoustic analysis of lightweight auto-body based on finite element method and boundary element method
LIANG Xinhua, ZHU Ping, LIN Zhongqin, ZHANG Yan
期刊论文
Thermal buckling behavior of laminated composite plates: a finite-element study
Houdayfa OUNIS,Abdelouahab TATI,Adel BENCHABANE
期刊论文
Comparison of indirect boundary element and finite element methods A case study: Shiraz-Esfahan railway
Amin MANOUCHEHRIAN, Mohammad Fatehi MARJI, Mohsen MOHEBBI
期刊论文
The smoothed finite element method (S-FEM): A framework for the design of numerical models for desired
Gui-Rong Liu
期刊论文
Finite element analysis on the seismic behavior of side joint of Prefabricated Cage System in prefabricated
Yunlin LIU, Shitao ZHU
期刊论文
Spectral element modeling based structure piezoelectric impedance computation and damage identification
Zhigang GUO, Zhi SUN
期刊论文
Correction to: Effect of undercut on the lower bound stability of vertical rock escarpment using finite element
期刊论文
Strain localization analyses of idealized sands in biaxial tests by distinct element method
Mingjing JIANG, Hehua ZHU, Xiumei LI,
期刊论文