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Application of entropy-based fuzzy matter-element analysis in seepage monitoring of RCC dam
Chongshi GU, Zhijun ZHANG, Xin CAI, Yue HOU
《结构与土木工程前沿(英文)》 2011年 第5卷 第1期 页码 105-111 doi: 10.1007/s11709-010-0015-4
关键词: information entropy fuzzy matter-element roller compacted concrete (RCC) dam seepage analysis
Principle of maximum entropy for reliability analysis in the design of machine components
Yimin ZHANG
《机械工程前沿(英文)》 2019年 第14卷 第1期 页码 21-32 doi: 10.1007/s11465-018-0512-z
关键词: machine components reliability arbitrary distribution parameter principle of maximum entropy
Entropy production analysis of swirling diffusion combustion processes
Deodat MAKHANLALL, Linhua LIU,
《能源前沿(英文)》 2010年 第4卷 第3期 页码 326-332 doi: 10.1007/s11708-009-0058-1
关键词: entropy-based design radiation transfer swirl magnussen combustion-model
Maximum entropy based finite element analysis of porous media
Emad NOROUZI, Hesam MOSLEMZADEH, Soheil MOHAMMADI
《结构与土木工程前沿(英文)》 2019年 第13卷 第2期 页码 364-379 doi: 10.1007/s11709-018-0470-x
关键词: maximum entropy FEM fully coupled multi-phase system porous media
Optimization of cold-end system of thermal power plants based on entropy generation minimization
《能源前沿(英文)》 2022年 第16卷 第6期 页码 956-972 doi: 10.1007/s11708-021-0785-5
关键词: cold-end system entropy generation minimization optimization economic analysis genetic algorithm (GA)
罗党,刘思峰
《中国工程科学》 2004年 第6卷 第10期 页码 48-51
以灰色系统理论和模糊数学为基础,探讨了不确定型决策问题的特性,分析了一些相关成果中所给方法在直接处理灰色模糊数方面的优势与不足。运用优化理论和熵极大化准则,建立了基于灰色模糊关系的多属性群体决策方法,分别对属性权重向量已知和未知两种情况给出了简便实用的算法,通过算例说明了算法的合理性。
New method of fault diagnosis of rotating machinery based on distance of information entropy
Houjun SU, Tielin SHI, Fei CHEN, Shuhong HUANG
《机械工程前沿(英文)》 2011年 第6卷 第2期 页码 249-253 doi: 10.1007/s11465-011-0124-3
This paper introduces the basic conception of information fusion and some fusion diagnosis methods commonly used nowadays in rotating machinery. From the thought of the information fusion, a new quantitative feature index monitoring and diagnosing the vibration fault of rotating machinery, which is called distance of information entropy, is put forward on the basis of the singular spectrum entropy in time domain, power spectrum entropy in frequency domain, wavelet energy spectrum entropy, and wavelet space feature entropy in time-frequency domain. The mathematic deduction suggests that the conception of distance of information entropy is accordant with the maximum subordination principle in the fuzzy theory. Through calculation it has been proved that this method can effectively distinguish different fault types. Then, the accuracy of rotor fault diagnosis can be improved through the curve chart of the distance of information entropy at multi-speed.
关键词: rotating machinery information fusion fault diagnosis Information entropy distance of the information entropy
水处理系统网络攻击的检测和定位:基于熵的方法 Research Article
刘可1,汪慕峰2,麻荣宽1,张镇勇2,魏强1
《信息与电子工程前沿(英文)》 2022年 第23卷 第4期 页码 587-603 doi: 10.1631/FITEE.2000546
High-order phase-field model with the local and second-order max-entropy approximants
Fatemeh AMIRI
《结构与土木工程前沿(英文)》 2019年 第13卷 第2期 页码 406-416 doi: 10.1007/s11709-018-0475-5
关键词: second-order maximum entropy local maximum entropy second- and fourth-order phase-field models B-spline
楚海林,李军
《中国工程科学》 2005年 第7卷 第10期 页码 43-45
从热力学出发,分析了工业生产活动污染环境的熵本质,提出了度量工业生产活动的环境影响非平衡态熵流模型,并分别对三种不同生产模式的熵增值进行计算,得到三种不同生产模式的环境影响趋势,为可持续发展的生产模式的选择提供依据。
王兴,詹伟,王国庆
《中国工程科学》 2014年 第16卷 第10期 页码 84-88
分析了组织结构对企业管理的重要意义以及组织结构设计与信息传递的关系,基于国内外大型建筑企业组织结构的对比,发现国内外大型建筑企业组织结构的共性与差异。提出运用信息熵模型从时效和质量两个方面评价组织结构的有序度,为考查组织信息传递有效性提供了定量方法,据此对日本鹿岛建设集团和中国铁建股份有限公司进行了评价。
李亮,迟世春,林皋
《中国工程科学》 2005年 第7卷 第4期 页码 64-68
将最大熵原理应用于基本复合形法的优化计算中,旨在提高算法的寻优成功率。具体步骤为:选取复形中熵最大的顶点为寻优点;在复形其余各点的加权中心点与寻优点的连线上,搜索比寻优点改善的新顶点;并替换掉寻优点构成新的复形;如此迭代直至复形中的信息被完全利用。采用基本复合形法和基于最大熵原理的复合形法对两个复杂土坡的最小安全系数进行了搜索,结果表明基于最大熵原理的复合形法的全局搜索能力有了明显改善。
《能源前沿(英文)》 doi: 10.1007/s11708-023-0892-6
关键词: high-entropy electrocatalysis synthetic methods water-electrolysis hydrogen and oxygen evolutions
Assembly design system based on engineering connection
Wensheng YIN
《机械工程前沿(英文)》 2016年 第11卷 第4期 页码 423-432 doi: 10.1007/s11465-016-0382-1
An assembly design system is an important part of computer-aided design systems, which are important tools for realizing product concept design. The traditional assembly design system does not record the connection information of production on the engineering layer; consequently, the upstream design idea cannot be fully used in the downstream design. An assembly design model based on the relationship of engineering connection is presented. In this model, all nodes are divided into two categories: The component and the connection. Moreover, the product is constructed on the basis of the connection relationship of the components. The model is an And/Or graph and has the ability to record all assembly schemes. This model records only the connection information that has engineering application value in the product design. In addition, this model can significantly reduce the number of combinations, and is very favorable for the assembly sequence planning in the downstream. The system contains a connection knowledge system that can be mapped to the connection node, and the connection knowledge obtained in practice can be returned to the knowledge system. Finally, VC++6.0 is used to develop a prototype system called Connect-based Assembly Planning (CAP). The relationship between the CAP system and the commercial assembly design system is also established.
关键词: product design assembly design engineering connection assembly sequence planning
Urban design based on public safety-Discussion on safety-based urban design
Kaizhen CAI, Jianguo WANG
《结构与土木工程前沿(英文)》 2009年 第3卷 第2期 页码 219-227 doi: 10.1007/s11709-009-0023-4
关键词: urban public safety urban design safety-based urban design
标题 作者 时间 类型 操作
Application of entropy-based fuzzy matter-element analysis in seepage monitoring of RCC dam
Chongshi GU, Zhijun ZHANG, Xin CAI, Yue HOU
期刊论文
Principle of maximum entropy for reliability analysis in the design of machine components
Yimin ZHANG
期刊论文
Entropy production analysis of swirling diffusion combustion processes
Deodat MAKHANLALL, Linhua LIU,
期刊论文
Maximum entropy based finite element analysis of porous media
Emad NOROUZI, Hesam MOSLEMZADEH, Soheil MOHAMMADI
期刊论文
Optimization of cold-end system of thermal power plants based on entropy generation minimization
期刊论文
New method of fault diagnosis of rotating machinery based on distance of information entropy
Houjun SU, Tielin SHI, Fei CHEN, Shuhong HUANG
期刊论文
High-order phase-field model with the local and second-order max-entropy approximants
Fatemeh AMIRI
期刊论文
High-entropy catalysts for electrochemical water-electrolysis of hydrogen evolution and oxygen evolution
期刊论文