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Interface behavior of steel-slag-air during tundish filling process:physical modeling and mathematical simulation 认领 引用
1
作者 Yu-Hang Wang Hai-Yan Tang +3 位作者 Kai-Min Wang Zhen-Dong Wang Xing-Yu Jia Jia-Quan Zhang 《Journal of Iron and Steel Research International》 SCIE EI CSCD 2026年第3期266-282,共17页
In view of the frequent deterioration of molten steel quality during the tundish filling process,the slag-steel-air interface behavior in a tundish,including liquid level fluctuation,slag eyes,slag entrapment and air ... In view of the frequent deterioration of molten steel quality during the tundish filling process,the slag-steel-air interface behavior in a tundish,including liquid level fluctuation,slag eyes,slag entrapment and air suction during the steady-state casting and filling process,was comparatively studied through physical modeling and mathematical simulation methods.During the filling process,the liquid surface forms a large-size slag eye under the impact of molten steel from a ladle shroud,which simultaneously results in a violent fluctuation of liquid level.Concurrently,the liquid flow entrains the air phase and the cover slag into the tundish impact zone,resulting in slag entrapment and air suction.At filling flow rates of 1.5Q,2.0Q,and 2.5Q(Q is the flow rate under steady-state casting),the amount of slag entrapped is 8.39×10-5,9.65×10-5,and 12.7×10-5m3,respectively,while the volume of air aspirated is 0.84×10-4,1.47×10-4,and 2.01×10-4m3,indicating that slag entrapment and air suction intensify with an increase in tundish filling flow rate.Flow field characterization identifies eddy currents in the impact zone as the primary driver of the above phenomena.Proper filling process parameters were proposed to improve the steel quality during the tundish filling. 展开更多
关键词 Mathematical simulation Physical modeling Tundish filling process Interface behavior Steel-slag-air interface
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Numerical Simulation of Interface Crack Initiation and Propagation Along Interphase in Multiphase Composites Using Arbitrary Multiphase Hybrid Stress Element 认领 引用
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作者 Wenyan Zhang Ran Guo +1 位作者 Wei Xu Runjie Wang 《Acta Mechanica Solida Sinica》 SCIE EI CSCD 2026年第5期711-721,共11页
Arbitrary multiphase hybrid stress finite element(AMHSFE)is a high-order stress element based on hybrid stress finite element theory,featuring extremely simple mesh division.It demonstrates strong capabilities for mul... Arbitrary multiphase hybrid stress finite element(AMHSFE)is a high-order stress element based on hybrid stress finite element theory,featuring extremely simple mesh division.It demonstrates strong capabilities for multiphase materials,particularly particulate reinforced composites(PRCs)with high amounts of particulate matter[1].Since the behavior of interfaces in multiphase materials significantly impacts their mechanical properties,research on interface cracks in multiphase materials holds considerable significance.The AMHSFE is employed in this study to simulate interface cracks of varying morphologies in multiphase materials,as well as the whole process of the interface crack initiation and propagation in PRCs with varying particle quantities and distribution patterns.A comparison of the results with those from finite element method(FEM)software analyses demonstrates the analytical reliability,accuracy and validity of AMHSFE.Furthermore,the simulations demonstrate the capability of AMHSFE in analyzing interface crack initiation and propagation in realistic PRCs with tremendous amounts of particles. 展开更多
关键词 Arbitrary multiphase hybrid stress finite element(AMHSFE) Multiphase materials Particulate reinforced composites(PRCs) Interface crack initiation and propagation Numerical simulation
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Finite-difference simulation of elastic waves in fluid-solid coupled media with irregular interface 认领 引用
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作者 Xu-Hui Zhou Yi-Yuan Wang Shou-Dong Huo 《Petroleum Science》 SCIE EI CAS CSCD 2025年第10期4083-4101,共19页
The finite-difference method(FDM)is an essential tool in exploration geophysics,particularly for simulating wave propagation in fluid-solid coupled media.Despite its widespread use,FDM faces significant challenges tha... The finite-difference method(FDM)is an essential tool in exploration geophysics,particularly for simulating wave propagation in fluid-solid coupled media.Despite its widespread use,FDM faces significant challenges that affect its accuracy and efficiency.Firstly,the implicit handling of fluid-solid boundary conditions through parameter averaging strategy often results in low simulation accuracy.Secondly,surface topography can introduce staircase diffraction noise when grid spacing is large.To address these issues,this paper presents a novel approach.We derive an implicit expression for fluidsolid boundary conditions based on average medium theory,translating explicit boundary conditions into model parameter modification.This enables implicit handling of fluid-solid boundaries by modifying the parameters near the boundary.Furthermore,to mitigate staircase diffraction noise,we employ multiple interface discretization based on the superposition method.This effectively suppresses staircase diffraction noise without requiring grid refinement.The efficacy of our method in accurately modeling wave propagation phenomena in fluid-solid coupled media is demonstrated by numerical examples.Results align well with those obtained using the spectral element method(SEM),with significant reduction in staircase diffraction noise. 展开更多
关键词 Fluid-solid coupled media Boundary condition Irregular interface Numerical simulation Staircase diffraction noise
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Analysis of Micromechanical Properties at the Interface of Pre-wet SBS Modified Asphalt Mixture Based on Molecular Simulation Technology 认领 引用
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作者 CHEN Wuxing CHEN Shuang +3 位作者 YU Yan ZHANG Jiangyi XU Haiyang GUO Wei 《Journal of Wuhan University of Technology(Materials Science)》 SCIE EI CAS CSCD 2025年第1期103-113,共11页
The pre-wetting of aggregate surface is a means to improve the interface performance of SBS modified asphalt and aggregate.The effect of pre-wetting technology on the interaction between SBS modified asphalt and aggre... The pre-wetting of aggregate surface is a means to improve the interface performance of SBS modified asphalt and aggregate.The effect of pre-wetting technology on the interaction between SBS modified asphalt and aggregate was analyzed by molecular dynamics simulation.The diffusion coefficient and concentration distribution of SBS modified asphalt on aggregate surface are included.The simulation results show that the diffusion coefficient of the aggregate surface of SBS modified asphalt is increased by 47.6%and 70.5%respectively after 110#asphalt and 130#asphalt are pre-wetted.The concentration distribution of SBS modified asphalt on the aggregate surface after pre-wetting is more uniform.According to the results of interface energy calculation,the interface energy of SBS modified bitumen and aggregate can be increased by about 5%after pre-wetting.According to the results of molecular dynamics simulation,the pre-wetting technology can effectively improve the interface workability of SBS modified bitumen and aggregate,so as to improve the interface performance. 展开更多
关键词 pre-wet oil-stone interface interface interaction interface mechanics molecular dynamics simulation
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Simulation study on factors influencing the entrainment behavior of liquid steel as bubbles pass through the steel/slag interface 认领 引用 被引量：4
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作者 Xiang Li Yan-ping Bao +1 位作者 Min Wang Lu Lin 《International Journal of Minerals,Metallurgy and Materials》 SCIE EI CAS CSCD 2016年第5期511-519,共9页
In this study, a water/silicone oil interface was used to simulate the steel/slag interface in a converter. A high-speed camera was used to record the entrainment process of droplets when air bubbles were passed throu... In this study, a water/silicone oil interface was used to simulate the steel/slag interface in a converter. A high-speed camera was used to record the entrainment process of droplets when air bubbles were passed through the water/silicone oil interface. Motion parameters of the bubbles and droplets were obtained using particle kinematic analysis software, and the entrainment rate of the droplets was calculated. It was found that the entrainment rate decreased from 29.5% to 0 when the viscosity of the silicone oil was increased from 60 mPa.s to 820 mPa.s in the case of bubbles with a 5 mm equivalent diameter passing through the water/silicone oil interface. The results indicate that in- creasing the viscosity of the silicone oil is conducive to reducing the entrainment rate. The entrainment rate increased from 0 to 136.3% in the case of silicone oil with a viscosity of 60 mPa.s when the equivalent diameter of the bubbles was increased from 3 mm to 7 ram. We there- fore conclude that small bubbles are also conductive to reducing the entrainment rate. The force analysis results for the water colmnn indicate that the entrainment rate of droplets is affected by the velocity of the bubble passing through the water/silicone oil interface and that the en- trainment rate decreases with the bubble velocity. 展开更多
关键词 steelmaking bubbles interfaces entrainment influencing factors simulation studies
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Simulation of the Influence of Pulsed Magnetic Field on the Superalloy Melt with the Solid-Liquid Interface in Directional Solidification 认领 引用 被引量：8
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作者 Kuiliang Zhang Yingju Li Yuansheng Yang 《Acta Metallurgica Sinica(English Letters)》 SCIE EI CAS CSCD 2020年第10期1442-1454,共13页
The effect of the pulsed magnetic field on the grain refinement of superalloy K4169 has been studied in directional solidification.In the presence of the solid-liquid interface condition,the distributions of the elect... The effect of the pulsed magnetic field on the grain refinement of superalloy K4169 has been studied in directional solidification.In the presence of the solid-liquid interface condition,the distributions of the electromagnetic force,flow field,temperature field,and Joule heat in front of the solid-liquid interface in directional solidification with the pulsed magnetic field are simulated.The calculation results show that the largest electromagnetic force in the melt appears near the solid-liquid interface,and the electromagnetic force is distributed in a gradient.There are intensive electromagnetic vibrations in front of the solid-liquid interface.The forced melt convection is mainly concentrated in front of the solid-liquid interface,accompanied by a larger flow velocity.The simulation results indicate that the grain refinement is attributed to that the electromagnetic vibration and forced convection increase the nucleation rate and the probability of dendrite fragments survival,for making dendrite easily fragmented,homogenizing the melt temperature,and increasing the undercooling in front of the solid-liquid interface. 展开更多
关键词 Pulsed magnetic field Solid–liquid interface Simulation Electromagnetic force Melt convection Superalloy
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Progress in molecular-simulation-based research on the effects of interface-induced fluid microstructures on flow resistance 认领 引用 被引量：2
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作者 Yumeng Zhang Yudan Zhu +4 位作者 AnranWang Qingwei Gao Yao Qin Yaojia Chen Xiaohua Lu 《Chinese Journal of Chemical Engineering》 SCIE EI CAS CSCD 2019年第6期1403-1415,共13页
In modern chemical engineering processes, solid interface involvement is the most important component of process intensification techniques, such as nanoporous membrane separation and heterogeneous catalysis. The fund... In modern chemical engineering processes, solid interface involvement is the most important component of process intensification techniques, such as nanoporous membrane separation and heterogeneous catalysis. The fundamental mechanism underlying interfacial transport remains incompletely understood given the complexity of heterogeneous interfacial molecular interactions and the high nonideality of the fluid involved. Thus, understanding the effects of interface-induced fluid microstructures on flow resistance is the first step in further understanding interfacial transport. Molecular simulation has become an indispensable method for the investigation of fluid microstructure and flow resistance. Here, we reviewed the recent research progress of our group and the latest relevant works to elucidate the contribution of interface-induced fluid microstructures to flow resistance.We specifically focused on water, ionic aqueous solutions, and alcohol–water mixtures given the ubiquity of these fluid systems in modern chemical engineering processes. We discussed the effects of the interfaceinduced hydrogen bond networks of water molecules, the ionic hydration of ionic aqueous solutions, and the spatial distributions of alcohol and alcohol–water mixtures on flow resistance on the basis of the distinctive characteristics of different fluid systems. 展开更多
关键词 Process intensification Nanoconfined fluid Interface Complex fluids Micro structure Molecular simulation
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Research on the disaster mechanism of landslides along the loess-mudstone interface under seismic action 认领 引用
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作者 Yanbo Cao Songsong Sun +3 位作者 Wenbo Zheng Yuexuan Zhang Haochen Sun Tom Dijkstra 《Earthquake Research Advances》 CAS CSCD 2026年第2期43-53,共11页
Loess is a Quaternary aeolian sediment that has been deposited over an undulating bedrock landscape,forming the Chinese Loess Plateau.Where this bedrock comprises mudstones,the loess-bedrock interface conditions the l... Loess is a Quaternary aeolian sediment that has been deposited over an undulating bedrock landscape,forming the Chinese Loess Plateau.Where this bedrock comprises mudstones,the loess-bedrock interface conditions the landscape in a state of high landslide susceptibility.In this neo-tectonically active region,earthquakes and rainfall are highly likely to act as triggers.This study focuses on a representative loess–mudstone interface landslide located on a hillside behind the Vehicle Management Office in Wuqi County,Yan'an City,Central China,to investigate the coupled effects of rainfall infiltration and seismic loading on slope deformation and failure mechanisms.Numerical simulations were developed to better understand how co-seismic landslides are affected by different rainfall conditions,and how this resulted in different mechanisms of failure and runout.The results show that rainfall infiltration progressively weakens the mudstone layer,leading to the upward extension of the potential slip zone and a marked reduction in slope stability.Under subsequent seismic loading,deformation is concentrated along the loess–mudstone contact,and topographic amplification further increases peak ground acceleration at the slope crest.The interaction between rainfall-induced softening and seismic excitation significantly accelerates slope failure,highlighting the critical control of the mudstone layer's post-softening strength on overall stability.The findings of this study provide a valuable reference for analyzing the disaster mechanisms of similar loess landslides. 展开更多
关键词 Landslide Loess-mudstone interface Seismic action Disaster mechanism Numerical simulation
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大数据应用的UI设计标准化研究与实践 认领 引用 被引量：2
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作者 侯心羽 郭庆 侯鸿川 《中国标准化》 2026年第1期115-124,共10页
在大数据和人工智能技术快速发展的背景下,应用软件面临信息激增和数据处理复杂化的挑战。本文通过实践研究提出一套UI设计标准化方法,旨在提升用户交互体验、工作效率和品牌形象。通过在应用软件开发项目中的深入研究和实践,整理归纳... 在大数据和人工智能技术快速发展的背景下,应用软件面临信息激增和数据处理复杂化的挑战。本文通过实践研究提出一套UI设计标准化方法,旨在提升用户交互体验、工作效率和品牌形象。通过在应用软件开发项目中的深入研究和实践,整理归纳提出一套UI设计标准化的方法,优化了系统操作的稳定性和易用性,使用户在不同页面和功能模块中获得一致的、优质的交互体验。标准化显著减少了用户困惑,提升了操作效果和开发效率,同时增强了系统稳定性和市场竞争力,为大数据环境下的协作开发提供了有效支持。UI设计标准化是应对技术挑战、提高开发效率、增强人机交互可靠性和系统稳定性的关键策略,为应用软件的设计与优化提供了实践指导。 展开更多
关键词 大数据 标准化 人机交互 用户界面 UI设计
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Numerical simulation of flow field distribution and stability in semi-filled multiphase horizontal centrifugal casting 认领 引用
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作者 Long-Chao Liu Yu-Long Cao +3 位作者 Sheng Liu Chong-Sheng Ma Zheng-Rong Zhao Guang-Qiang Li 《Journal of Iron and Steel Research International》 SCIE EI CSCD 2026年第5期133-146,共14页
With the increasing quality requirements and demand for rotary steel parts,the lack of research on the centrifugal casting’s flow field in semi-filled molds has limited the development of casting parameterization.The... With the increasing quality requirements and demand for rotary steel parts,the lack of research on the centrifugal casting’s flow field in semi-filled molds has limited the development of casting parameterization.The development of centrifugal multiphase flow fields,interphase interface formation,and fluid stability in thick-walled pipe fittings were examined.The fluctuation and stability of the flow field during steel and slag co-pouring are innovatively characterized using finite element analysis and casting experiments.The results show that the movement of the conventional semi-filled horizontal centrifugal flow field can be divided into three stages:filling fluctuation period,stable period,and weak instability period.Producers need to control initial solidification during the stable period to avoid defects and performance changes caused by melt instability.The pressure difference due to gravity causes the flow field to shift,and the center of gravity(CG)of the fluid in the stable period deviates nearly vertically and fluctuates in an elliptical shape,tending towards the central axis with increasing mold speed.Experimental castings exhibited eccentric distribution and phase interface fluctuation,while actual oxygen addition,slag fluctuation,and solidification shrinkage caused the CG offset to be smaller than that of ideal pure fluid.Additionally,the instantaneous filling assumption can be used to characterize the stable stage of the melt flow field,with an error of only 1.2%compared to non-instantaneous filling,while reducing computational cost by 30%. 展开更多
关键词 Centrifugal casting Flow stability Numerical simulation Phase interface Center of gravity
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Atomic understanding of Kelvin-Helmholtz instability at single-crystal copper interface with an initial corrugated disturbance under different tangential velocities 认领 引用
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作者 Jianhao Shi Xi Wang +2 位作者 Xiaomian Hu Zihui Wu Hao Pan 《Matter and Radiation at Extremes》 SCIE EI CAS CSCD 2026年第3期89-106,共18页
The evolutionary mechanisms of Kelvin-Helmholtz instability at single-crystal copper-copper interfaces with initial sinusoidal perturbation under different tangential velocity discontinuities(0.5,1.0,2.0,and 3.0 km/s)... The evolutionary mechanisms of Kelvin-Helmholtz instability at single-crystal copper-copper interfaces with initial sinusoidal perturbation under different tangential velocity discontinuities(0.5,1.0,2.0,and 3.0 km/s)are investigated through molecular dynamics simulations.Distinct characteristics of stable and unstable interface morphologies are identified.The interface contact length,rather than the perturbation amplitude,extracted by an edge detection method,is selected as an appropriate physical quantity to indicate the state of the interface.The interface is stable for a tangential velocity discontinuity of 0.5 km/s,since the contact length remains essentially unchanged,but it is unstable for the other three velocities,since the contact length increases continuously.The contact lengths of unstable interfaces exhibit distinctly different nonlinear growth patterns.The microstructural evolutions for stable and unstable interfaces are also revealed.Sparse distributions of microstructures,such as dislocations and stacking faults,are observed in a stable interface,whereas extensive propagation,indicating large areas of plastic deformation,is found in unstable interfaces.Furthermore,a large number of metastable phase atoms emerge during plastic deformation,and an amorphous belt whose thickness grows as the velocity increases is formed near unstable interfaces.A thicker amorphous belt corresponds to greater plastic work,which produces a wider high-temperature belt near the interface.It also leads to the formation of a thicker shear belt with a high gradient velocity profile,creating a dynamic condition to promote the instability and thus distort the interface. 展开更多
关键词 Single Crystal Copper sinusoidal perturbation Molecular Dynamics Simulations tangential velocity discontinuities Interface Morphology edge detection methodis Tangential Velocity molecular dynamics simulationsdistinct
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数字赋能:景德镇陶瓷文化的UI界面及城市品牌形象研究与策略 认领 引用
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作者 白丹丹 史朋宇 《景德镇陶瓷》 2026年第3期77-79,共3页
在数字经济与文化创新深度融合的当代背景下,如何借助数字技术推动传统文化资源的现代转化,成为一项兼具学术价值与实践意义的课题。本文从“数字赋能”出发,聚焦景德镇陶瓷文化在UI界面设计与城市品牌形象的构建,提出融合数字艺术、互... 在数字经济与文化创新深度融合的当代背景下,如何借助数字技术推动传统文化资源的现代转化,成为一项兼具学术价值与实践意义的课题。本文从“数字赋能”出发,聚焦景德镇陶瓷文化在UI界面设计与城市品牌形象的构建,提出融合数字艺术、互动平台与品牌形象策略。 展开更多
关键词 数字赋能 景德镇陶瓷 UI界面 品牌形象
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传统文化类UI界面设计的文化转译与设计创新 认领 引用
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作者 王景丹 郑亮 林颖 《丝网印刷》 2026年第14期116-118,共3页
选取传统文化类UI界面设计为研究对象,梳理文化转译理论的应用路径,分析设计要素的转化方式。研究表明,构建符号、行为、观念“三层协同”模型,可实现从表层装饰到意义共鸣的设计创新,为传统文化类UI界面设计提供方法论参考。
关键词 文化转译 传统元素 UI界面设计
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UI界面版权和商业外观侵权的法律标准——以美国法为例 认领 引用
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作者 霍晓斌 《争议解决》 2026年第3期57-65,共9页
本文探讨了在美国法律体系下,UI界面在版权和商业外观两个维度上寻求知识产权保护的法律标准与困境。尽管UI界面从创作之初即受版权保护,但这种保护主要局限于软件的源代码等“表达”层面,而不涵盖其功能、操作方法或“思想”。因此,若... 本文探讨了在美国法律体系下,UI界面在版权和商业外观两个维度上寻求知识产权保护的法律标准与困境。尽管UI界面从创作之初即受版权保护,但这种保护主要局限于软件的源代码等“表达”层面,而不涵盖其功能、操作方法或“思想”。因此,若无代码抄袭的直接证据,仅凭UI界面的“外观与感觉”的相似性很难成功主张版权侵权。作为替代和补充,商业外观为UI界面的整体“外观与感觉”提供了另一条保护路径。权利人需证明其UI界面具有识别产品来源的“独特性”(通常通过“第二含义”来证明)且整体上“非功能性”,同时被告的使用可能造成消费者混淆。然而,证明UI的非功能性是实践中的主要难点,因为UI界面的许多元素都与实用功能紧密相关。本文结论认为,在维权实践中,权利人通常会将版权、商业外观乃至专利侵权结合起来,以构建更全面的法律保护。 展开更多
关键词 版权 商业外观 非功能性 UI界面 美国
Experimental and Simulation Studies on Fabricating GCr15/40Cr Bimetallic Compound Rollers Using Electroslag Surfacing with Liquid Metal Method 认领 引用 被引量：7
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作者 Lei RAO Shuang-jun WANG +2 位作者 Jian-hua ZHAO Mao-peng GENG Gang DING 《Journal of Iron and Steel Research International》 SCIE CAS CSCD 2014年第9期869-877,共9页
Electroslag surfacing with liquid metal （ESSLM） is an excellent method for producing high quality bimetallic compound rollers. The quality of each compound roller is primarily determined by the metallurgical quality... Electroslag surfacing with liquid metal （ESSLM） is an excellent method for producing high quality bimetallic compound rollers. The quality of each compound roller is primarily determined by the metallurgical quality of the combined interface. A GCrl5/40Cr compound roller is produced using an ESSLM non-consumable electrode electro- slag heating method. The temperature and electric fields produced by the ESSLM system are calculated. As the roller core moves downward in the mold, it passes through five sections., the preheating section, the rapid heating section, the temperature homogenizing section, the bimetal fusing section and the cooling section which listed from the top to bottom of the mold, respectively. The temperature distribution and the degree of the surface temperature fluctuation in the roller core are different for each section. Near the combined interface, four layers are found from the roller core to the cladding layer= the remelting layer, the fusion layer, the interface solidification layer and the chilling layer, re spectively. Among these, the fusion and interface solidification layers are the key transition zones that greatly influ- ence the combination quality. The surface temperature of the roller core prior to cladding is mainly determined by the drawing velocity, and the thickness of the transition layer increases as the drawing velocity decreases. A transition layer that is too thick or too thin will reduce the mechanical properties at the combined interface. Therefore, the drawing velocity should be limited to a moderate range to produce a satisfactory bimetallic Compound roller. 展开更多
关键词 bimetallic compound roller ESSLM combined interface drawing velocity numerical simulation
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High density gas state at water/graphite interface studied by molecular dynamics simulation 认领 引用 被引量：17
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作者 王春雷 李朝霞 +3 位作者 李敬源 修鹏 胡钧 方海平 《Chinese Physics B》 SCIE EI CAS 2008年第7期2646-2654,共9页
In this paper molecular dynamics simulations are performed to study the accumulation behaviour of N2 and H2 at water/graphite interface under ambient temperature and pressure. It finds that both N2 and H2 molecules ca... In this paper molecular dynamics simulations are performed to study the accumulation behaviour of N2 and H2 at water/graphite interface under ambient temperature and pressure. It finds that both N2 and H2 molecules can accumulate at the interface and form one of two states according to the ratio of gas molecules number to square of graphite surface from our simulation results： gas films （pancake-like） for a larger ratio and nanobubbles for a smaller ratio. In addition, we discuss the stabilities of nanobubbles at different environment temperatures. Surprisingly, it is found that the density of both kinds of gas states can be greatly increased, even comparable with that of the liquid N2 and liquid H2. The present results are expected to be helpful for the understanding of the stable existence of gas film （pancake-like） and nanobubbles. 展开更多
关键词 nanobubbles and gas film hydrophobic interface molecular dynamics simulations high density
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An experimental analysis of situation awareness for cockpit display interface evaluation based on flight simulation 认领 引用 被引量：28
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作者 Wei Hengyang Zhuang Damin +1 位作者 Wanyan Xiaoru Wang Qun 《Chinese Journal of Aeronautics》 SCIE EI CAS CSCD 2013年第4期884-889,共6页
Aircraft cockpit display interface （CDI） is one of the most important human-machine interfaces for information perceiving. During the process of aircraft design, situation awareness （SA） is frequently considered t... Aircraft cockpit display interface （CDI） is one of the most important human-machine interfaces for information perceiving. During the process of aircraft design, situation awareness （SA） is frequently considered to improve the design, as the CDI must provide enough SA for the pilot to maintain the flight safety. In order to study the SA in the pilot-aircraft system, a cockpit flight simulation environment is built up, which includes a virtual instrument panel, a flight visual display and the corresponding control system. Based on the simulation environment, a human-in-the-loop experiment is designed to measure the SA by the situation awareness global assessment technique （SAGAT）. Through the experiment, the SA degrees and heart rate （HR） data of the subjects are obtained, and the SA levels under different CDI designs are analyzed. The results show that analyzing the SA can serve as an objective way to evaluate the design of CDI, which could be proved from the consistent HR data. With this method, evaluations of the CDI design are performed in the experimental flight simulation environment, and optimizations could be guided through the analysis. 展开更多
关键词 Cockpit display interface Design evaluation Flight simulation Heart rate SAGAT Situation awareness
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Mathematical modeling and simulation of the interface region of a tri-layer composite material,brass-steel-brass,produced by cold rolling 认领 引用 被引量：2
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作者 H. Arabi S.H. Seyedein +1 位作者 A. Mehryab B. Tolaminejad 《International Journal of Minerals,Metallurgy and Materials》 SCIE EI CAS 2009年第2期189-196,共8页
The object of this study was to find the optimum conditions for the production of a sandwich composite from the sheets of brass-steel-brass. The experimental data obtained during the production process were used to va... The object of this study was to find the optimum conditions for the production of a sandwich composite from the sheets of brass-steel-brass. The experimental data obtained during the production process were used to validate the simulation program, which was written to establish the relation between the interface morphology and the thickness reduction amount of the composite. For this purpose, two surfaces of a steel sheet were first prepared by scratching brushing before inserting it between two brass sheets with smooth surfaces. Three sheets were then subjected to a cold rolling process for producing a tri-layer composite with various thick- nesses. The sheet interface after rolling was studied by different techniques, and the bonding strength for each rolling condition was determined by peeling test. Moreover, a relation between interfacial bonding strength and thickness reduction was found. The simulation results were compared with the experimental data and the available theoretical models to modify the original simulation program with high application efficiency used for predicting the behavior of the interface under different pressures. 展开更多
关键词 sandwich composite cold rolling mathematical simulation metallic bonding interface
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A new physical simulation tool to predict the interface of dissimilar aluminum to steel welds performed by friction melt bonding 认领 引用 被引量：2
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作者 T.Sapanathan N. Jimenez-Mena +5 位作者 I. Sabirov M.A. Monclus J.M. Molina-Aldaregui P. Xia L. Zhao A. Simar 《Journal of Materials Science & Technology》 SCIE EI CAS CSCD 2019年第9期2048-2057,共10页
Optimization of the intermetallic layer thickness and the suppression of interfacial defects are key elements to improve the load bearing capacity of dissimilar joints. However, till date we do not have a systematic t... Optimization of the intermetallic layer thickness and the suppression of interfacial defects are key elements to improve the load bearing capacity of dissimilar joints. However, till date we do not have a systematic tool to investigate the dissimilar joints and the intermetallic properties produced by a welding condition. Friction Melt Bonding (FMB) is a recently developed technique for joining dissimilar metals that also does not exempt to these challenges. The FMB of DP980 and A16061-T6 was investigated using a new physical simulation tool, based on Gleeble thermo-mechanical simulator, to understand the effect of individual parameter on the intermetallic formation. The proposed method demonstrates its capability in reproducing the intermetallic characteristics, including the thickness of intermetallic bonding layer, the morphology and texture of its constituents (Fe2AU and Fe4Ali3), as well as their nanohardness and reduced modulus. The advantages of physical simulation tool can enable novel developing routes for the development of dissimilar metal joining processes and facilitate to reach the requiring load bearing capacity of the joints. 展开更多
关键词 Physical simulation Interface Intermetallics Nanoindentation Joining
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Molecular Dynamics Simulation of Interface Properties between Water-Based Inorganic Zinc Silicate Coating Modified by Organosilicone and Iron Substrate 认领 引用 被引量：2
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作者 Hengjiao Gao Yuqing Xiong +5 位作者 Kaifeng Zhang Shengzhu Cao Mingtai Hu Yi Li Ping Zhang Xiaoli Liu 《Journal of Renewable Materials》 SCIE EI CAS 2023年第4期1715-1729,共15页
The interface properties of Fe(101)/zinc silicate modified by organo-siloxane(KH-570)was studied by using the method of molecular dynamics simulation.By calculating the temperature and energy fluctuation of equilibriu... The interface properties of Fe(101)/zinc silicate modified by organo-siloxane(KH-570)was studied by using the method of molecular dynamics simulation.By calculating the temperature and energy fluctuation of equilibrium state,equilibrium concentration distribution,MSD of layer and different groups,and interaction energy of two interface models,the influencing mechanism on the interface properties of adding organosiloxane into coating system was studied at the atomic scale.It shows that the temperature and energy of interface oscillated in a small range and it was exited in a state of dynamic equilibrium within the initial simulation stage(t<20 ps).It can be seen from the multiple peak states of concentration distribution that the iron substrate,organo-siloxane and zinc silicate are distributed in the form of a concentration gradient in the real environment.The rapid diffusion of free zinc powder in zinc silicate coating was the essential reason that affected the comprehensive properties of coating.The interface thickness decreased from 7.45 to 6.82Å,the MSD of free zinc powder was effectively reduced,and the interfacial energy was increased from 104.667 to 347.158 kcal/mol after being modified by organo-siloxane. 展开更多
关键词 Interface model molecular dynamics simulation concentration distribution MSD interaction energy
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