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Modification of the activated sludge model for chemical dosage
Shuai MA,Siyu ZENG,Xin DONG,Jining CHEN,Gustaf OLSSON
《环境科学与工程前沿(英文)》 2015年 第9卷 第4期 页码 694-701 doi: 10.1007/s11783-014-0732-3
关键词: chemical precipitation benchmark simulation model phosphorus removal respiratory rate sludge settling activated sludge model
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
Huayang LEI, Yajie ZHANG, Yao HU, Yingnan LIU
《结构与土木工程前沿(英文)》 2021年 第15卷 第1期 页码 147-166 doi: 10.1007/s11709-020-0704-6
关键词: shield tunneling face stability transparent clay model test numerical simulation
《能源前沿(英文)》 doi: 10.1007/s11708-023-0891-7
关键词: machine learning lithium-ion battery state of health neural network artificial intelligence
Method for rating energy performance of public buildings
Jincheng XING,Youli LI,Jihong LING,Huiyang YU,Liwen WANG
《能源前沿(英文)》 2014年 第8卷 第3期 页码 379-385 doi: 10.1007/s11708-014-0328-4
关键词: energy consumption benchmark energy efficiency benchmark energy performance level
Xianlong MENG, Wenyu FU, Yun ZHANG, Aike QIAO,
《机械工程前沿(英文)》 2010年 第5卷 第3期 页码 328-335 doi: 10.1007/s11465-010-0026-9
关键词: reverse engineering aortic arch aneurysm surface model meshing finite element model
Numerical simulation on flow of ice slurry in horizontal straight tube
Shengchun LIU,Ming SONG,Ling HAO,Pengxiao WANG
《能源前沿(英文)》 2021年 第15卷 第1期 页码 201-207 doi: 10.1007/s11708-017-0451-0
关键词: ice slurry horizontal tubes numerical simulation pressure drop viscosity model
Jinying XI,Insun KANG,Hongying HU,Xian ZHANG
《环境科学与工程前沿(英文)》 2015年 第9卷 第3期 页码 554-562 doi: 10.1007/s11783-014-0671-z
关键词: Volatile Organic Compounds (VOCs) biofilters modelling biomass accumulation pressure drop
荆一楠 ,张寒冰,李智鑫 ,王晓阳 ,吴杰,柴洪峰
《中国工程科学》 2022年 第24卷 第4期 页码 121-132 doi: 10.15302/J-SSCAE-2022.04.014
CH-benCHmark:CH-benCHmark融合了TPC-C和TPC-H两种测试基准 []。CH-benCHmark选用了TPC-H中的3个数据表对TPC-C中的数据模式进行扩充,共包含12个数据表。同时,为了评测数据库产品在混合工作负载下的性能,CH-benCHmark使用事务吞吐量和每小时执行的查询数之间的比率作为度量指标。Cloud Serving Benchmark,是一个用于比较NoSQL数据库性能的开源测试基准,目标是促进新一代云数据服务系统的性能比较 []。随着InfluxDB、IoTDB等时序数据库的出现,面向时序数据库的测试基准TS-Benchmark [] 应运而生。
Theoretical study on flow and radiation in tubular solar photocatalytic reactor
《能源前沿(英文)》 2021年 第15卷 第3期 页码 687-699 doi: 10.1007/s11708-021-0773-9
关键词: photocatalytic hydrogen photoreactor nume- rical simulation solar energy flow model radiation model
Numerical simulation of fluid dynamics in the stirred tank by the SSG Reynolds Stress Model
Nana QI, Hui WANG, Kai ZHANG, Hu ZHANG
《化学科学与工程前沿(英文)》 2010年 第4卷 第4期 页码 506-514 doi: 10.1007/s11705-010-0508-7
关键词: stirred tank fluid dynamics numerical simulation SSG Reynolds Stress Model MRF
Modeling and simulation of normal and hemiparetic gait
Lely A. LUENGAS,Esperanza CAMARGO,Giovanni SANCHEZ
《机械工程前沿(英文)》 2015年 第10卷 第3期 页码 233-241 doi: 10.1007/s11465-015-0343-0
Gait is the collective term for the two types of bipedal locomotion, walking and running. This paper is focused on walking. The analysis of human gait is of interest to many different disciplines, including biomechanics, human-movement science, rehabilitation and medicine in general. Here we present a new model that is capable of reproducing the properties of walking, normal and pathological. The aim of this paper is to establish the biomechanical principles that underlie human walking by using Lagrange method. The constraint forces of Rayleigh dissipation function, through which to consider the effect on the tissues in the gait, are included. Depending on the value of the factor present in the Rayleigh dissipation function, both normal and pathological gait can be simulated. First of all, we apply it in the normal gait and then in the permanent hemiparetic gait. Anthropometric data of adult person are used by simulation, and it is possible to use anthropometric data for children but is necessary to consider existing table of anthropometric data. Validation of these models includes simulations of passive dynamic gait that walk on level ground. The dynamic walking approach provides a new perspective of gait analysis, focusing on the kinematics and kinetics of gait. There have been studies and simulations to show normal human gait, but few of them have focused on abnormal, especially hemiparetic gait. Quantitative comparisons of the model predictions with gait measurements show that the model can reproduce the significant characteristics of normal gait.
关键词: bipedal gait biomechanics dynamic walking gait model human gait hemiparetic human gait
Effect of adjusted mesoscale drag model on flue gas desulfurization in powder-particle spouted beds
《化学科学与工程前沿(英文)》 2022年 第16卷 第6期 页码 909-920 doi: 10.1007/s11705-021-2100-8
关键词: adjusted mesoscale drag model particle image velocimetry water vaporization desulfurization reaction numerical simulation
A modified zone model for estimating equivalent room thermal capacity
Hua CHEN, Xiaolin WANG
《能源前沿(英文)》 2013年 第7卷 第3期 页码 351-357 doi: 10.1007/s11708-013-0254-x
关键词: room model thermal network analysis transfer function heating ventilation and air conditioning (HVAC) system simulation
Two-echelon Emergency Response Problem and Simulation Considering Secondary Disasters
Han-peng Zhang,Yi Liao,Hui-xia Luo
《工程管理前沿(英文)》 2014年 第1卷 第3期 页码 318-321 doi: 10.15302/J-FEM-2014042
关键词: simulation secondary disasters two-echelon vehicle routing model
标题 作者 时间 类型 操作
Modification of the activated sludge model for chemical dosage
Shuai MA,Siyu ZENG,Xin DONG,Jining CHEN,Gustaf OLSSON
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
Model test and discrete element method simulation of shield tunneling face stability in transparent clay
Huayang LEI, Yajie ZHANG, Yao HU, Yingnan LIU
期刊论文
Machine learning and neural network supported state of health simulation and forecasting model for lithium-ion
期刊论文
Method for rating energy performance of public buildings
Jincheng XING,Youli LI,Jihong LING,Huiyang YU,Liwen WANG
期刊论文
Reverse engineering in the construction of numerical simulation oriented patient-specific model of stented
Xianlong MENG, Wenyu FU, Yun ZHANG, Aike QIAO,
期刊论文
Numerical simulation on flow of ice slurry in horizontal straight tube
Shengchun LIU,Ming SONG,Ling HAO,Pengxiao WANG
期刊论文
A biofilter model for simultaneous simulation of toluene removal and bed pressure drop under varied inlet
Jinying XI,Insun KANG,Hongying HU,Xian ZHANG
期刊论文
Numerical simulation of fluid dynamics in the stirred tank by the SSG Reynolds Stress Model
Nana QI, Hui WANG, Kai ZHANG, Hu ZHANG
期刊论文
Modeling and simulation of normal and hemiparetic gait
Lely A. LUENGAS,Esperanza CAMARGO,Giovanni SANCHEZ
期刊论文
Effect of adjusted mesoscale drag model on flue gas desulfurization in powder-particle spouted beds
期刊论文