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《结构与土木工程前沿(英文)》 2023年 第17卷 第1期 页码 10-24 doi: 10.1007/s11709-022-0904-3
关键词: underground structures seismic response stiffness matrix method domain reduction method P-SV waves
Time-domain and frequency-domain approaches to identification of bridge flutter derivatives
Zhengqing CHEN
《结构与土木工程前沿(英文)》 2009年 第3卷 第2期 页码 173-179 doi: 10.1007/s11709-009-0034-1
关键词: long-span bridges wind-induced vibration flutter derivatives forced vibration test time-domain method frequency-domain method
《结构与土木工程前沿(英文)》 2021年 第15卷 第4期 页码 851-866 doi: 10.1007/s11709-021-0739-3
关键词: damage identification beam-to-column connection time-domain response optimization
Analytical method of capsizing probability in the time domain for ships in the random beam seas
LIU Liqin, TANG Yougang, LI Hongxia
《结构与土木工程前沿(英文)》 2007年 第1卷 第3期 页码 361-366 doi: 10.1007/s11709-007-0048-5
关键词: different survival probability different significant nonlinear differential narrowband
DU Jianguo, LIN Gao
《结构与土木工程前沿(英文)》 2008年 第2卷 第4期 页码 336-342 doi: 10.1007/s11709-008-0054-2
关键词: structure-foundation interface computational efficiency different suitable numerical approach
Border-search and jump reduction method for size optimization of spatial truss structures
Babak DIZANGIAN, Mohammad Reza GHASEMI
《结构与土木工程前沿(英文)》 2019年 第13卷 第1期 页码 123-134 doi: 10.1007/s11709-018-0478-2
关键词: optimum design sensitivity analysis reduction method spatial trusses OpenSees
《环境科学与工程前沿(英文)》 2022年 第16卷 第2期 doi: 10.1007/s11783-021-1459-6
• Quantification of efficiency and fairness of abatement allocation are optimized.
关键词: Pollutant emission reduction allocation Emission reduction measures Total abatement cost Economic efficiency Abatement space
《化学科学与工程前沿(英文)》 2022年 第16卷 第12期 页码 1807-1817 doi: 10.1007/s11705-022-2243-2
关键词: Ru/C catalyst in-situ H2 reduction and moderate oxidation in-situ reduction non-in-situ reduction hydrogenation of 3 5-dimethylpyridine
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
Model reduction of contact dynamics simulation using a modified Lyapunov balancing method
Jianxun LIANG, Ou MA, Caishan LIU
《机械工程前沿(英文)》 2011年 第6卷 第4期 页码 383-391 doi: 10.1007/s11465-011-0244-9
Finite element models are often used to simulate impact and contact dynamics responses of multibody dynamical systems. However, such a simulation remains very inefficient because very small integration time step must be used when solving the involved differential equations, especially when the involved contact stiffness is high. Although many model reduction techniques have been available to improve the efficiency of finite element based simulations, these techniques cannot be readily applied to contact dynamics simulations due to the high nonlinearity of the contact dynamics models. This paper presents a model reduction approach for finite-element based multibody contact dynamics simulation, based on a modified Lyapunov balanced truncation method. An example is presented to demonstrate that, by applying the model reduction the simulation process is significantly speeded up and the resulting error is bounded within an acceptable level. The performance of the method with respect to some influential factors such as element size, shape and contact stiffness is also investigated.
关键词: contact dynamics dynamic simulation model reduction finite element method
Yali CHEN,Lu XIONG,Weikang WANG,Xing ZHANG,Hanqing YU
《环境科学与工程前沿(英文)》 2015年 第9卷 第5期 页码 897-904 doi: 10.1007/s11783-015-0782-1
关键词: nitrobenzene nano-structured Cu electro-reduction voltage-dependent electrodeposition high selectivity high stability
Entity and relation extraction with rule-guided dictionary as domain knowledge
《工程管理前沿(英文)》 页码 610-622 doi: 10.1007/s42524-022-0226-0
关键词: entity extraction relation extraction prior knowledge domain rule
Terahertz time-domain spectroscopy of high-pressure flames
Jason BASSI, Mark STRINGER, Bob MILES, Yang ZHANG
《能源前沿(英文)》 2009年 第3卷 第2期 页码 123-133 doi: 10.1007/s11708-009-0033-x
关键词: terahertz time-domain spectroscopy high-pressure flames H2O absorption lines
The influencing factors of the WTP for the risk reduction of chemical industry accidents in China
Lei HUANG, Zhijuan SHAO, Weiliang BAO, Bailing DUAN, Jun BI, Zengwei YUAN
《环境科学与工程前沿(英文)》 2012年 第6卷 第6期 页码 860-868 doi: 10.1007/s11783-012-0467-y
关键词: risk perception willingness to pay contingent valuation method risk management school of the environment
无监督域自适应的动态参数化学习 Research Article
蒋润华1,2,韩亚洪1,2
《信息与电子工程前沿(英文)》 2023年 第24卷 第11期 页码 1616-1632 doi: 10.1631/FITEE.2200631
标题 作者 时间 类型 操作
framework for underground structures in layered ground under inclined P-SV waves using stiffness matrix and domainreduction methods
期刊论文
Time-domain and frequency-domain approaches to identification of bridge flutter derivatives
Zhengqing CHEN
期刊论文
Damage identification in connections of moment frames using time domain responses and an optimizationmethod
期刊论文
Analytical method of capsizing probability in the time domain for ships in the random beam seas
LIU Liqin, TANG Yougang, LI Hongxia
期刊论文
Improved numerical method for time domain dynamic structure-foundation interaction analysis based onscaled boundary finite element method
DU Jianguo, LIN Gao
期刊论文
Border-search and jump reduction method for size optimization of spatial truss structures
Babak DIZANGIAN, Mohammad Reza GHASEMI
期刊论文
Achieving air pollutant emission reduction targets with minimum abatement costs: An enterprise-levelallocation method with constraints of fairness and feasibility
期刊论文
Development of an H reduction and moderate oxidation method for 3,5-dimethylpyridine hydrogenation in
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
Model reduction of contact dynamics simulation using a modified Lyapunov balancing method
Jianxun LIANG, Ou MA, Caishan LIU
期刊论文
Efficient and selective electro-reduction of nitrobenzene by the nano-structured Cu catalyst preparedby an electrodeposited method via tuning applied voltage
Yali CHEN,Lu XIONG,Weikang WANG,Xing ZHANG,Hanqing YU
期刊论文
Terahertz time-domain spectroscopy of high-pressure flames
Jason BASSI, Mark STRINGER, Bob MILES, Yang ZHANG
期刊论文
The influencing factors of the WTP for the risk reduction of chemical industry accidents in China
Lei HUANG, Zhijuan SHAO, Weiliang BAO, Bailing DUAN, Jun BI, Zengwei YUAN
期刊论文