Advanced Modeling and Simulation in Engineering Sciences最新文献_第9页

Contact modeling from images using cut finite element solvers 使用切割有限元求解器从图像进行接触建模

Advanced Modeling and Simulation in Engineering Sciences Pub Date : 2021-06-01 DOI: 10.1186/s40323-021-00197-2

F. Moshfeghifar, S. Darkner, K. Erleben, C. Wong

引用次数: 9

Multivariate moment-matching for model order reduction of quadratic-bilinear systems using error bounds 基于误差界的二次双线性系统模型降阶的多变量矩匹配

Advanced Modeling and Simulation in Engineering Sciences Pub Date : 2021-05-27 DOI: 10.1186/s40323-022-00236-6

Muhammad Altaf Khattak, M. I. Ahmad, Lihong Feng, P. Benner

引用次数: 1

Numerical simulation of the experimental behavior of RC beams at elevated temperatures 高温下RC梁试验性能的数值模拟

Advanced Modeling and Simulation in Engineering Sciences Pub Date : 2021-05-19 DOI: 10.1186/s40323-021-00198-1

C. Issa, R. Izadifard

引用次数: 4

A multiscale model of terrain dynamics for real-time earthmoving simulation 用于实时土方模拟的多尺度地形动力学模型

Advanced Modeling and Simulation in Engineering Sciences Pub Date : 2021-05-12 DOI: 10.1186/s40323-021-00196-3

Martin Servin, Tomas Berglund, Samuel Nystedt

{"title":"A multiscale model of terrain dynamics for real-time earthmoving simulation","authors":"Martin Servin, Tomas Berglund, Samuel Nystedt","doi":"10.1186/s40323-021-00196-3","DOIUrl":"https://doi.org/10.1186/s40323-021-00196-3","url":null,"abstract":"A multiscale model for real-time simulation of terrain dynamics is explored. To represent the dynamics on different scales the model combines the description of soil as a continuous solid, as distinct particles and as rigid multibodies. The models are dynamically coupled to each other and to the earthmoving equipment. Agitated soil is represented by a hybrid of contacting particles and continuum solid, with the moving equipment and resting soil as geometric boundaries. Each zone of active soil is aggregated into distinct bodies, with the proper mass, momentum and frictional-cohesive properties, which constrain the equipment’s multibody dynamics. The particle model parameters are pre-calibrated to the bulk mechanical parameters for a wide range of different soils. The result is a computationally efficient model for earthmoving operations that resolve the motion of the soil, using a fast iterative solver, and provide realistic forces and dynamic for the equipment, using a direct solver for high numerical precision. Numerical simulations of excavation and bulldozing operations are performed to test the model and measure the computational performance. Reference data is produced using coupled discrete element and multibody dynamics simulations at relatively high resolution. The digging resistance and soil displacements with the real-time multiscale model agree with the reference model up to 10–25%, and run more than three orders of magnitude faster.","PeriodicalId":37424,"journal":{"name":"Advanced Modeling and Simulation in Engineering Sciences","volume":"30 14","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-05-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138510032","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 11

Compressible flow simulation with moving geometries using the Brinkman penalization in high-order Discontinuous Galerkin 高阶不连续Galerkin中使用Brinkman惩罚的运动几何可压缩流模拟

Advanced Modeling and Simulation in Engineering Sciences Pub Date : 2021-04-27 DOI: 10.1186/s40323-021-00195-4

Neda Ebrahimi Pour, N. Anand, H. Klimach, S. Roller

引用次数: 0

An isogeometric b-rep mortar-based mapping method for non-matching grids in fluid-structure interaction 流固耦合非匹配网格的等几何b-rep砂浆映射方法

Advanced Modeling and Simulation in Engineering Sciences Pub Date : 2021-04-27 DOI: 10.1186/s40323-021-00190-9

A. Apostolatos, A. Emiroglu, S. Shayegan, Fabien Péan, K. Bletzinger, R. Wüchner

引用次数: 1

3D B-Rep meshing for real-time data-based geometric parametric analysis 三维B-Rep网格实时数据为基础的几何参数分析

Advanced Modeling and Simulation in Engineering Sciences Pub Date : 2021-04-15 DOI: 10.1186/s40323-021-00194-5

T. Maquart, T. Elguedj, A. Gravouil, M. Rochette

引用次数: 2

Investigation of pollutants formation in a diesel engine using numerical simulation 柴油机污染物形成的数值模拟研究

Advanced Modeling and Simulation in Engineering Sciences Pub Date : 2021-04-03 DOI: 10.21203/RS.3.RS-366378/V1

M. Zahid, K. S. Syed

{"title":"Investigation of pollutants formation in a diesel engine using numerical simulation","authors":"M. Zahid, K. S. Syed","doi":"10.21203/RS.3.RS-366378/V1","DOIUrl":"https://doi.org/10.21203/RS.3.RS-366378/V1","url":null,"abstract":"The current study aims at simulating the in-cylinder combustion process in a diesel engine and investigating the engine performance and pollutant formation. The combustion simulation is performed on a 3D sector employing appropriate models for various physical and chemical processes contributing in the combustion phenomenon. The overall model includes Transition SST turbulence model, eddy dissipation model for turbulence chemistry interaction, Moss–Brookes model for soot calculation and Zeldovich mechanism for NO production other than the usual transport equations. The numerical solutions are based on the finite volume discretization of the governing partial differential equations. Engine performance has been studied in terms of pressure, temperature and heat release rate while the pollutants formation has been investigated in terms of soot and thermal NO production. The results show that the ignition delay is quite short and that the injection timing may be successfully employed to control the combustion behavior. The simulation results are quite consistent with the expected behavior of the target variables indicating that the CFD analysis can be successfully employed in the diesel engine design. The results validation may be acknowledged in view of the mesh independence test, literature comparison and justification of the models.","PeriodicalId":37424,"journal":{"name":"Advanced Modeling and Simulation in Engineering Sciences","volume":"8 1","pages":"1-14"},"PeriodicalIF":0.0,"publicationDate":"2021-04-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49262588","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

A new boundary element algorithm for modeling and simulation of nonlinear thermal stresses in micropolar FGA composites with temperature-dependent properties 一种新的边界元算法用于模拟和模拟具有温度相关特性的微极FGA复合材料的非线性热应力

Advanced Modeling and Simulation in Engineering Sciences Pub Date : 2021-03-26 DOI: 10.1186/s40323-021-00193-6

M. Fahmy

引用次数: 1

A cut finite element method for spatially resolved energy metabolism models in complex neuro-cell morphologies with minimal remeshing 基于最小重网格的复杂神经细胞形态空间分辨能量代谢模型的切割有限元方法

Advanced Modeling and Simulation in Engineering Sciences Pub Date : 2021-03-22 DOI: 10.1186/s40323-021-00191-8

S. Farina, S. Claus, John Hale, A. Skupin, Stéphane P. A. Bordas

引用次数: 10