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Simulation and analysis of grinding wheel based on Gaussian mixture model
Yulun CHI, Haolin LI
《机械工程前沿(英文)》 2012年 第7卷 第4期 页码 427-432 doi: 10.1007/s11465-012-0350-3
This article presents an application of numerical simulation technique for the generation and analysis of the grinding wheel surface topographies. The ZETA 20 imaging and metrology microscope is employed to measure the surface topographies. The Gaussian mixture model (GMM) is used to transform the measured non-Gaussian field to Gaussian fields, and the simulated topographies are generated. Some numerical examples are used to illustrate the viability of the method. It shows that the simulated grinding wheel topographies are similar with the measured and can be effective used to study the abrasive grains and grinding mechanism.
关键词: grinding wheel 3D topographies measurement Gaussian mixture model simulation
Simulation of abrasive flow machining process for 2D and 3D mixture models
Rupalika DASH,Kalipada MAITY
《机械工程前沿(英文)》 2015年 第10卷 第4期 页码 424-432 doi: 10.1007/s11465-015-0366-6
Improvement of surface finish and material removal has been quite a challenge in a finishing operation such as abrasive flow machining (AFM). Factors that affect the surface finish and material removal are media viscosity, extrusion pressure, piston velocity, and particle size in abrasive flow machining process. Performing experiments for all the parameters and accurately obtaining an optimized parameter in a short time are difficult to accomplish because the operation requires a precise finish. Computational fluid dynamics (CFD) simulation was employed to accurately determine optimum parameters. In the current work, a 2D model was designed, and the flow analysis, force calculation, and material removal prediction were performed and compared with the available experimental data. Another 3D model for a swaging die finishing using AFM was simulated at different viscosities of the media to study the effects on the controlling parameters. A CFD simulation was performed by using commercially available ANSYS FLUENT. Two phases were considered for the flow analysis, and multiphase mixture model was taken into account. The fluid was considered to be a Newtonian fluid and the flow laminar with no wall slip.
关键词: abrasive flow machining (AFM) computational fluid dynamics (CFD) modeling mixture model
A study on quality evaluation for bituminous mixture using X-ray CT
Satoshi TANIGUCHI, Keiichiro OGAWA, Jun OTANI, Itaru NISHIZAKI
《结构与土木工程前沿(英文)》 2013年 第7卷 第2期 页码 89-101 doi: 10.1007/s11709-013-0197-7
关键词: asphalt concrete mixture aggregate bitumen bitumen content quality evaluation X-ray CT
Fatigue of asphalt binder, mastic and mixture at low temperature
Dong WANG, Linbing WANG, Guoqing ZHOU
《结构与土木工程前沿(英文)》 2012年 第6卷 第2期 页码 166-175 doi: 10.1007/s11709-012-0157-7
关键词: fatigue asphalt mixture asphalt binder mastic finite element method (FEM) X-ray tomography
Xiao-Yong WANG
《结构与土木工程前沿(英文)》 2020年 第14卷 第2期 页码 473-486 doi: 10.1007/s11709-020-0608-5
关键词: ternary blended concrete climate change optimal mixture design carbonation chloride ingress
Experimental study on capturing CO 2 greenhouse gas by mixture of ammonia and soil
Ying WU, Yifei WANG, Qinghua ZENG, Xin GONG, Zunhong YU,
《化学科学与工程前沿(英文)》 2009年 第3卷 第4期 页码 468-473 doi: 10.1007/s11705-009-0257-7
关键词: electron microscopy product physical adsorption capacity spectroscopy
集成增强主动学习混合判别分析模型及其在半监督故障分类中的应用 Research Article
王伟俊1,王云2,王君1,方信昀3,何雨辰1
《信息与电子工程前沿(英文)》 2022年 第23卷 第12期 页码 1814-1827 doi: 10.1631/FITEE.2200053
《环境科学与工程前沿(英文)》 2022年 第16卷 第7期 doi: 10.1007/s11783-021-1500-9
•Addition of hindered amine increased thermal stability and viscosity of TTTM.
关键词: Ternary transition-temperature mixture FT-IR and thermal stability analysis Viscosity and correlation study Eyring’s absolute rate theory CO2 solubility Density functional theory (DFT).
Optimization of polyurethane-bonded thin overlay mixture designation for airport pavement
Xianrui LI; Ling XU; Qidi ZONG; Fu JIANG; Xinyao YU; Jun WANG; Feipeng XIAO
《结构与土木工程前沿(英文)》 2022年 第16卷 第8期 页码 947-961 doi: 10.1007/s11709-022-0836-y
关键词: polyurethane-bonded mixture mix design optimization airport pavement thin overlay gray relational analysis
Jing HU, Pengfei LIU, Bernhard STEINAUER
《结构与土木工程前沿(英文)》 2017年 第11卷 第3期 页码 329-337 doi: 10.1007/s11709-017-0407-9
关键词: asphalt mixture microstructure morphology digital image processing fatigue damage
Fatemeh ZAHIRI, Hamid ESKANDARI-NADDAF
《结构与土木工程前沿(英文)》 2019年 第13卷 第4期 页码 821-830 doi: 10.1007/s11709-019-0518-6
关键词: mixture method compressive strength nano-silica micro-silica polypropylene fibers
钱振东,王亚奇,沈家林
《中国工程科学》 2012年 第14卷 第5期 页码 90-95
研究了环氧沥青混合料的强度形成机理,在此基础上对影响环氧沥青混合料强度的两个重要因素即混合料的容留时间、养生温度进行了研究,确定了不同温度下环氧沥青混合料的容留时间范围及强度增长规律;采用差示扫描量热法(DSC)测得环氧沥青结合料在不同升温速率下的动态DSC曲线,通过非线性回归求得固化动力学关键参数,建立环氧沥青结合料的固化反应模型。研究结果可以指导环氧沥青混合料的生产与施工,同时对铺装层开放交通时间的确定有参考意义。
An adaptive data-driven method for accurate prediction of remaining useful life of rolling bearings
Yanfeng PENG, Junsheng CHENG, Yanfei LIU, Xuejun LI, Zhihua PENG
《机械工程前沿(英文)》 2018年 第13卷 第2期 页码 301-310 doi: 10.1007/s11465-017-0449-7
A novel data-driven method based on Gaussian mixture model (GMM) and distance evaluation technique (DET) is proposed to predict the remaining useful life (RUL) of rolling bearings. The data sets are clustered by GMM to divide all data sets into several health states adaptively and reasonably. The number of clusters is determined by the minimum description length principle. Thus, either the health state of the data sets or the number of the states is obtained automatically. Meanwhile, the abnormal data sets can be recognized during the clustering process and removed from the training data sets. After obtaining the health states, appropriate features are selected by DET for increasing the classification and prediction accuracy. In the prediction process, each vibration signal is decomposed into several components by empirical mode decomposition. Some common statistical parameters of the components are calculated first and then the features are clustered using GMM to divide the data sets into several health states and remove the abnormal data sets. Thereafter, appropriate statistical parameters of the generated components are selected using DET. Finally, least squares support vector machine is utilized to predict the RUL of rolling bearings. Experimental results indicate that the proposed method reliably predicts the RUL of rolling bearings.
关键词: Gaussian mixture model distance evaluation technique health state remaining useful life rolling bearing
Silicon carbide waste as a source of mixture materials for cement mortar
Zhengwu Jiang, Qiang Ren, Haoxin Li, Qing Chen
《环境科学与工程前沿(英文)》 2017年 第11卷 第5期 doi: 10.1007/s11783-017-0974-y
关键词: Silicon carbide waste Cement mortar Fluidity Strength Shrinkage
Gorakshnath TAKALKAR, Ahmad K. SLEITI
《能源前沿(英文)》 2022年 第16卷 第3期 页码 521-535 doi: 10.1007/s11708-021-0720-9
关键词: ionic liquid driven absorption cycle H2O-[mmim][DMP] coefficient of performance (COP) exergy analysis thermodynamics mixture property
标题 作者 时间 类型 操作
Simulation of abrasive flow machining process for 2D and 3D mixture models
Rupalika DASH,Kalipada MAITY
期刊论文
A study on quality evaluation for bituminous mixture using X-ray CT
Satoshi TANIGUCHI, Keiichiro OGAWA, Jun OTANI, Itaru NISHIZAKI
期刊论文
Fatigue of asphalt binder, mastic and mixture at low temperature
Dong WANG, Linbing WANG, Guoqing ZHOU
期刊论文
Impacts of climate change on optimal mixture design of blended concrete considering carbonation and chloride
Xiao-Yong WANG
期刊论文
Experimental study on capturing CO 2 greenhouse gas by mixture of ammonia and soil
Ying WU, Yifei WANG, Qinghua ZENG, Xin GONG, Zunhong YU,
期刊论文
Potassium carbonate-based ternary transition temperature mixture (deep eutectic analogues) for CO absorption
期刊论文
Optimization of polyurethane-bonded thin overlay mixture designation for airport pavement
Xianrui LI; Ling XU; Qidi ZONG; Fu JIANG; Xinyao YU; Jun WANG; Feipeng XIAO
期刊论文
A study on fatigue damage of asphalt mixture under different compaction using 3D-microstructural characteristics
Jing HU, Pengfei LIU, Bernhard STEINAUER
期刊论文
strength of concrete containing micro-silica, nano-silica, and polypropylene fibers using extreme vertices mixture
Fatemeh ZAHIRI, Hamid ESKANDARI-NADDAF
期刊论文
An adaptive data-driven method for accurate prediction of remaining useful life of rolling bearings
Yanfeng PENG, Junsheng CHENG, Yanfei LIU, Xuejun LI, Zhihua PENG
期刊论文
Silicon carbide waste as a source of mixture materials for cement mortar
Zhengwu Jiang, Qiang Ren, Haoxin Li, Qing Chen
期刊论文