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Xiao-ping BAI,Ya-nan LIU
《结构与土木工程前沿(英文)》 2016年 第10卷 第4期 页码 462-471 doi: 10.1007/s11709-016-0361-y
关键词: civil engineering dynamic reliability grey relational degree adaptive simulated annealing algorithm
Tao FU, Jibin ZHAO, Weijun LIU
《机械工程前沿(英文)》 2012年 第7卷 第4期 页码 445-452 doi: 10.1007/s11465-012-0338-z
This paper investigates optimization problem of the cutting parameters in high-speed milling on NAK80 mold steel. An experiment based on the technology of Taguchi is performed. The objective is to establish a correlation among spindle speed, feed per tooth and depth of cut to the three directions of cutting force in the milling process. In this study, the optimum cutting parameters are obtained by the grey relational analysis. Moreover, the principal component analysis is applied to evaluate the weights so that their relative significance can be described properly and objectively. The results of experiments show that grey relational analysis coupled with principal component analysis can effectively acquire the optimal combination of cutting parameters and the proposed approach can be a useful tool to reduce the cutting force.
关键词: high-speed milling grey relational analysis principal component analysis parameters optimization
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
Are Relational Contracting Approaches Applicable to Public Projects in China?
Wei-ya Hao,Hui-ping Ding,Yong-jian Ke,Ying-ying Wang
《工程管理前沿(英文)》 2014年 第1卷 第4期 页码 358-363 doi: 10.15302/J-FEM-2014052
关键词: relational contracting public construction relationship
Analysis of synergy degree and its influencing factors in hydropower EPC project management
Jiwei ZHU, Hua GAO, Jiangrui WANG
《工程管理前沿(英文)》 2021年 第8卷 第3期 页码 402-411 doi: 10.1007/s42524-020-0098-0
关键词: hydropower project EPC mode synergy degree model grey relational analysis
Application of grey-taguchi method for optimization of dry sliding wear properties of aluminum MMCs
Rajesh SIRIYALA, Gopala Krishna ALLURU, Rama Murthy Raju PENMETSA, Muthukannan DURAISELVAM
《机械工程前沿(英文)》 2012年 第7卷 第3期 页码 279-287 doi: 10.1007/s11465-012-0329-0
Through a pin-on-disc type wear setup, the dry sliding wear behavior of SiC-reinforced aluminum composites produced using the molten metal mixing method was investigated in this paper. Dry sliding wear tests were carried on SiC-reinforced metal matrix composites (MMCs) and its matrix alloy sliding against a steel counter face. Different contact stresses, reinforcement percentages, sliding distances, and sliding velocities were selected as the control variables, and the responses were selected as the wear volume loss (WVL) and coefficient of friction (COF) to evaluate the dry sliding performance. An L25 orthogonal array was employed for the experimental design. Initially, the optimization of the dry sliding performance of the SiC-reinforced MMCs was performed using grey relational analysis (GRA). Based on the GRA, the optimum level parameters for overall grey relational grade in terms of WVL and COF were identified. Analysis of variance was performed to determine the effect of individual factors on the overall grey relational grade. The results indicated that the sliding velocity was the most effective factor among the control parameters on dry sliding wear, followed by the reinforcement percentage, sliding distance, and contact stress. Finally, the wear surface morphology and wear mechanism of the composites were investigated through scanning electron microscopy.
关键词: aluminum ANOVA (analysis of variance) grey relational analysis metal matrix composites SiC particulates Taguchi
郭仪,周清雷,黄敬宝
《中国工程科学》 2006年 第8卷 第3期 页码 87-90
在研究国内外道路交通安全评价方法的基础上,根据我国道路交通安全现状及道路交通安全监督管理的要求,将灰色系统理论应用于道路交通安全评价,建立了一套基于TWW函数的道路交通安全灰色评价指标体系,并对6省市的交通安全水平进行了比较研究。
Kamal JANGRA, Sandeep GROVER, Aman AGGARWAL
《机械工程前沿(英文)》 2012年 第7卷 第3期 页码 288-299 doi: 10.1007/s11465-012-0333-4
Wire electrical discharge machining (WEDM) is a well known process for generating intricate and complex geometries in hard metal alloys and metal matrix composites with high precision. In present work, intricate machining of WC-5.3%Co composite on WEDM has been reported. Taguchi’s design of experiment has been utilised to investigate the process parameters for four machining characteristics namely material removal rate, surface roughness, angular error and radial overcut. In order to optimize the four machining characteristics simultaneously, grey relational analysis (GRA) coupled with entropy measurement method has been employed. Through GRA, grey relational grade has been computed as a performance index for predicting the optimal parameters setting for multi machining characteristics. Using Analysis of Variance (ANOVA) on grey relational grade, significant parameters affecting the multi-machining characteristics has been determined. Confirmatory results prove the potential of present approach.
关键词: tungsten carbide composite wire electrical discharge machining (WEDM) Taguchi method grey relational analysis (GRA) entropy measurement method
杨炳儒,张伟,钱榕
《中国工程科学》 2008年 第10卷 第9期 页码 47-53
多关系频繁模式发现能够直接从复杂结构化数据中发现涉及多个关系的复杂频繁模式,避免了传统方法的局限。有别于主流基于归纳逻辑程序设计技术的方法,提出了基于合取查询包含关系的面向语义的精简化多关系频繁模式发现方法,具有理论与技术基础的新颖性,解决了两种语义冗余问题。实验表明,该方法在可理解性、功能、效率以及可扩展性方面具有优势。
高金吉
《中国工程科学》 2001年 第3卷 第9期 页码 41-47
应用现代信息技术和人工智能实施设备诊断工程,逐步实现状态维修和预知维修,是大型流程工业企业降低生产成本的重要途径之一。概要介绍为实现这一目标所开发的机电装备实时监测网络和人工智能诊断技术。简要介绍了基于Ethernet和FDDI开发、应用于石化企业的机、泵群实时监测网络;首次提出了黑灰白集合筛选法,在一次原因分析法和故障机理及其识别特征研究基础上,应用此方法开发的基于黑灰白集合筛选法的机械故障诊断专家系统,用于工程实践取得了满意的结果。
模糊灰色物元空间(FHW)理论与实践——宏观复杂大系统决策方法
谢砚青,张江,国强,林华
《中国工程科学》 2002年 第4卷 第11期 页码 57-66
模糊灰色物元空间(FHW)是针对宏观复杂大系统中的决策、预测问题进行决策支持的理论方法。它以Delphi法和模糊综合评判为基础,融合了BS和K.J法的优点,综合了模糊数学、灰色系统、物元分析与可拓学等多种理论,以此理论为基础的决策支持系统已经在实际应用中取得了大量的成果。经过近20年的发展,这套理论方法在综合人工智能、复杂系统、集合论等其他学科的基础上,自身也有了长足的发展与进步。简要介绍了模糊、灰色、物元空间理论的理论体系、实际应用情况和近年来的发展和展望。
Gray-box modeling and QFT control for precision servo transmission systems
Xiulan BAO, Xuedong CHEN, Xin LUO, Haocheng ZUO
《机械工程前沿(英文)》 2011年 第6卷 第4期 页码 442-448 doi: 10.1007/s11465-011-0242-y
Precision servo transmission systems have widely been applied in industrial equipment to achieve high accuracy and high speed motion. However, due to the presence of friction and uncertainty, the characteristics of precision servo transmission systems are variant depends on the working conditions, leading to oscillation and instability in the system performances. In this paper, a grey-box model of the system is established, the model structure derived from the theoretical modeling and the model parameters are obtained by experiments using set membership identification method. This paper proposes two-degrees of freedom (2-DOF) robust position controller for a precision servo transmission system, based on the quantitative feedback theory (QFT), to achieve high accuracy and consistent tracking performance even in presence of considerable system uncertainties and friction disturbances. The results of simulate and experiment validate the effectiveness of the proposed controller.
关键词: precision servo transmission system modeling set membership identification quantitative feedback theory (QFT) robustness
基于机器学习的自动化恶意代码分类与新恶意代码检测技术 Article
Liu LIU, Bao-sheng WANG, Bo YU, Qiu-xi ZHONG
《信息与电子工程前沿(英文)》 2017年 第18卷 第9期 页码 1336-1347 doi: 10.1631/FITEE.1601325
王硕,唐小我
《中国工程科学》 2002年 第4卷 第7期 页码 29-32
提出虚拟企业敏捷性评价指标体系,用改进的层次分析法(AHP)和改进的模糊灰色物元法(FHW)相结合的AFHW模型进行专家咨询及虚拟企业敏捷性度量计算。并根据研制的虚拟企业敏捷性度量支持系统,对企业进行案例研究。
一种基于两步参数子空间模型的对比度保持彩色图像灰度化算法 Article
Hong-yang LU, Qie-gen LIU, Yu-hao WANG, Xiao-hua DENG
《信息与电子工程前沿(英文)》 2017年 第18卷 第11期 页码 1874-1882 doi: 10.1631/FITEE.1600017
标题 作者 时间 类型 操作
Reliability analysis on civil engineering project based on integrated adaptive simulation annealing andgray correlation method
Xiao-ping BAI,Ya-nan LIU
期刊论文
Multi-objective optimization of cutting parameters in high-speed milling based on grey relational analysiscoupled with principal component analysis
Tao FU, Jibin ZHAO, Weijun LIU
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
Are Relational Contracting Approaches Applicable to Public Projects in China?
Wei-ya Hao,Hui-ping Ding,Yong-jian Ke,Ying-ying Wang
期刊论文
Analysis of synergy degree and its influencing factors in hydropower EPC project management
Jiwei ZHU, Hua GAO, Jiangrui WANG
期刊论文
Application of grey-taguchi method for optimization of dry sliding wear properties of aluminum MMCs
Rajesh SIRIYALA, Gopala Krishna ALLURU, Rama Murthy Raju PENMETSA, Muthukannan DURAISELVAM
期刊论文
Optimization of multi machining characteristics in WEDM of WC-5.3%Co composite using integrated approach of Taguchi, GRA and entropy method
Kamal JANGRA, Sandeep GROVER, Aman AGGARWAL
期刊论文
Gray-box modeling and QFT control for precision servo transmission systems
Xiulan BAO, Xuedong CHEN, Xin LUO, Haocheng ZUO
期刊论文