Scopri come la simulazione multifisica viene utilizzata per ricerca e sviluppo
In questa sezione troverete i lavori presentati alle Conferenze mondiali COMSOL. Le presentazioni descrivono ricerche e prodotti innovativi progettati con COMSOL Multiphysics da colleghi di tutto il mondo. I temi delle ricerche presentate abbracciano un'ampia gamma di settori produttivi e aree applicative, in ambito elettrico, meccanico, fluidodinamico e chimico. Lo strumento di Ricerca Rapida vi permetterà di trovare le presentazioni che si riferiscono all'area di vostro interesse.
Visualizza gli articoli presentati alla COMSOL Conference 2020
The underwater electric potential (UEP) signature of naval vessels poses a severe threat as it is detectable by advanced sea mines. The signature depends also on the environment, mainly the water-seabed interface, leading in summary to the total UEP signature. The seabed has a ... Per saperne di più
This paper presents a novel methodology towards the design, analysis, and the fabrication process involved in developing a cost effective method to create a piezoelectric actuator by means of the flexoelectric effect. The basic physical equations of the flexoelectric effect and the ... Per saperne di più
微波加热技术现已广泛应用于岩石工程和地下工程等领域，例如岩石粉碎、非常规油气开采等领域。国内外学者也对此进行了大量的研究，但是微波破岩机理尚不明确，特别是微波照射下不同矿物成分相互作用机理不明确。微波破岩是一个电磁-热-力相互耦合过程。本项研究借助于COMSOL的RF模块、固体力学模块、固体传热模块及COMSOL with Matlab。建立了不同尺度的数值计算模型。在大尺寸模型中揭示了微波照射时间与温度的关系，并与试验结果对比。在小尺度模型中，研究微波照射下不同矿物的破坏机理，相关研究成果已撰写一篇SCI论文（审稿中）。 Per saperne di più
The effect of plasmon-wavelength scaled gratings on the surface plasmon resonance is studied experimentally and theoretically. The model samples are multi-layers containing laser fabricated gratings at bimetal-polymer interfaces. Dual-angle dependent surface plasmon resonance ... Per saperne di più
For the complex 3D biocompatible metallic parts, with high level of customization, used in medical prosthesis and implants Direct Metal Laser Sintering (DMLS) and Selective Laser Melting (SLM) are the most common Additive Manufacturing technologies used nowadays. However, both ... Per saperne di più
当高温超导体内部出现温升时，其临界电流密度会发生改变。为探索这种温度效应对高温超导磁悬浮的影响，本文利用COMSOL软件，结合AC/DC 模块及传热模块，建立了悬浮于永磁轨道上方的高温超导块材二维实体模型，以磁轨的小幅振动模拟轨道不平顺。模型基于非连续性超导体E-J磁通流动与蠕动电磁本构关系，考虑不同温度-临界电流密度Jc(T)关系表达式，研究了高温超导块材在磁场不平顺激扰下的磁-热-力动态行为特性。并探究了不同Jc(T)关系对仿真模型求解效率及收敛性的影响。该工作将为高温超导磁悬浮磁-热效应及能量损耗问题的研究提供一定的仿真手段。 Per saperne di più
Three-dimensionally varying flattened Luneburg Lens structure whose axisymmetric invariance of material parameters is calculated by conformal mapping, presents a numerical challenge for three dimensional modelling. To address this problem, conventionally a two dimensional quasi-conformal ... Per saperne di più
The present work introduces a new methodology, based on COMSOL Multiphysics® Application Builder, to account for the “beam trapping” effect in multiphysical modelling of laser welding. Incident intensities involved in laser welding processes are high enough to induce material ... Per saperne di più
Pyrometallurgical furnaces are used to produce metals such as copper, nickel and platinum by the smelting process. During smelting, the undesired material components are separated from the desired metal resulting in the formation of a slag and matte/metal phase. The slag phase ... Per saperne di più
The problem of an unbalanced mechanical torque signal generation using nonpolar repulsion techniques is studied. To achieve such an unbalanced torque, several stator and rotor geometries, consisting of nonlinear permanent magnet spring batteries are investigated. It can be shown that an ... Per saperne di più