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Real-time immune-inspired optimum state-of-charge trajectory estimation using upcoming route informationpreview and neural networks for plug-in hybrid electric vehicles fuel economy

Ahmad MOZAFFARI,Mahyar VAJEDI,Nasser L. AZAD

《机械工程前沿(英文)》 2015年 第10卷 第2期   页码 154-167 doi: 10.1007/s11465-015-0336-z

摘要:

The main proposition of the current investigation is to develop a computational intelligence-based framework which can be used for the real-time estimation of optimum battery state-of-charge (SOC) trajectory in plug-in hybrid electric vehicles (PHEVs). The estimated SOC trajectory can be then employed for an intelligent power management to significantly improve the fuel economy of the vehicle. The devised intelligent SOC trajectory builder takes advantage of the upcoming route information preview to achieve the lowest possible total cost of electricity and fossil fuel. To reduce the complexity of real-time optimization, the authors propose an immune system-based clustering approach which allows categorizing the route information into a predefined number of segments. The intelligent real-time optimizer is also inspired on the basis of interactions in biological immune systems, and is called artificial immune algorithm (AIA). The objective function of the optimizer is derived from a computationally efficient artificial neural network (ANN) which is trained by a database obtained from a high-fidelity model of the vehicle built in the Autonomie software. The simulation results demonstrate that the integration of immune inspired clustering tool, AIA and ANN, will result in a powerful framework which can generate a near global optimum SOC trajectory for the baseline vehicle, that is, the Toyota Prius PHEV. The outcomes of the current investigation prove that by taking advantage of intelligent approaches, it is possible to design a computationally efficient and powerful SOC trajectory builder for the intelligent power management of PHEVs.

关键词: trip information preview     intelligent transportation     state-of-charge trajectory builder     immune systems     artificial neural network    

含磷低硅TRIP 钢快速退火组织演变行为研究

陈蓬,沈春豫,许云波,王国栋

《中国工程科学》 2014年 第16卷 第1期   页码 48-53

摘要:

通过实验室热处理模拟实验,对含磷低硅transformation induced plasticity(TRIP)钢快速退火过程中各个阶段的组织演变行为进行研究,主要研究了不同退火温度对各个阶段组织组成的影响

关键词: 汽车钢     TRIP    低硅     快速退火     组织演变    

新型热轧低碳TRIP 钢的轧制工艺与疲劳性能

刘自权,谭小东,杨小龙,许云波,吴迪,王国栋

《中国工程科学》 2014年 第16卷 第1期   页码 54-58

摘要:

对比研究了现场不同工艺所得碳锰系车轮用钢及低碳低硅含磷铬系相变诱发塑性(TRIP)钢的力学性能、微观组织、疲劳性能和疲劳断口。结果显示,较传统碳锰系车轮用钢,新型TRIP 钢具有相当的屈服强度,抗拉强度明显提高了100~150 MPa,疲劳极限提高了50~140 MPa。疲劳极限随抗拉强度的提高有增大趋势。

关键词: 热轧     低碳TRIP    轧制工艺     疲劳性能     疲劳断口    

TRIP 钢无缝管的开发及其成形性分析

张自成,朱伏先

《中国工程科学》 2014年 第16卷 第2期   页码 46-52

摘要:

本文首次将趋于成熟的相变诱发塑性钢(TRIP 钢)生产技术应用到钢管的生产领域,以冷拔钢管为原料,分别利用两阶段热处理和连续热处理两种方式成功开发出具有铁素体、贝氏体、残余奥氏体和少量马氏体组织的薄壁TRIP 钢无缝管,并利用环形拉伸以及冷弯等试验手段对其成形性能进行了试验研究。研究结果表明,TRIP 钢无缝管具有较好的冷成形性能,可以在内高压成形等领域推广应用。另外,课题组开发的连续热处理设备完全可以用来生产TRIP钢管,为未来工业生产提供了重要参考。

关键词: TRIP    热处理     成形性能     钢管     微观组织    

δ-TRIP 钢的物理与力学冶金

易红亮,陈蓬,王国栋,马鸣图

《中国工程科学》 2014年 第16卷 第2期   页码 18-30

摘要:

δ-相变诱发塑性(TRIP)钢具有高的强韧性,可达到第三代汽车钢性能要求,且可电阻点焊,是一种新型的具有较高产业化前景的先进汽车钢。主要阐述了δ-TRIP钢的发展、组织与性能、相变与组织演化机理、强韧性机理、电阻点焊工艺与物理冶金机理。

关键词: TRIP    δ铁素体     贝氏体相变     组织演化     性能    

高锰TWIP/TRIP 钢研究进展与应用

张维娜,刘振宇,王国栋

《中国工程科学》 2014年 第16卷 第1期   页码 40-47

摘要:

综述了近来年高锰孪晶诱发塑性/相变诱发塑性(TWIP/TRIP)钢的研究进展和实际应用情况。介绍了晶粒尺寸对TWIP钢变形机制的影响,观察了形变孪晶随晶粒尺寸变化的演变过程。简述了碳化钒(VC)沉淀粒子对高锰TWIP/TRIP 钢延迟断裂及加工硬化行为的影响,并对VC沉淀粒子与形变孪晶的交互作用机制进行了探讨。阐述了双辊铸轧工艺制备高锰TWIP/TRIP钢薄带的近终成型工艺过程及显微组织的演变机理,并探讨了工程应用的前景。

关键词: 高锰TWIP/TRIP    薄带铸轧     变形机制     形变诱导马氏体     形变孪晶    

Parameter identification of interconnected power system frequency after trip-out of high voltage transmission

Xuzhan ZHOU,Shanshan LIU,Mingkun WANG,Yiping DAI,Yaohua TANG

《能源前沿(英文)》 2014年 第8卷 第3期   页码 386-393 doi: 10.1007/s11708-014-0323-9

摘要: Accurate modeling and parameters of high voltage (HV) grid are critical for stability research of system frequency. In this paper, simulation modeling of the system frequency was conducted of an interconnected power system with HV transmission lines in China. Based on recorded tripping data of the HV transmission lines, system parameters were identified by using genetic algorithm (GA). The favorable agreement between simulation results and recorded data verifies the validity of gird models and the accuracy of system parameters. The results of this paper can provide reference for the stability research of HV power grid.

关键词: high voltage (HV) grid     frequency stability parameter identification     primary frequency regulation (PFR)    

乘坐21 世纪40 年代的高铁旅行而归

Ignacio Barron

《工程(英文)》 2016年 第2卷 第3期   页码 292-293 doi: 10.1016/J.ENG.2016.03.020

Framework based on building information modeling, mixed reality, and a cloud platform to support information

Berardo NATICCHIA, Alessandra CORNELI, Alessandro CARBONARI

《工程管理前沿(英文)》 2020年 第7卷 第1期   页码 131-141 doi: 10.1007/s42524-019-0071-y

摘要: The quality of information flow management has a remarkable effect on the entire life cycle of buildings. Manual retrieval of technical specifications and features of building components and their performance assessment leads to increased cost and time and efficiency reduction, especially during the facility management (FM) stage. The introduction of building information modeling (BIM) in the construction industry can provide a valuable means of improving the organization and exchange of information. BIM tools integrate multiple levels of information within a single digital model of a building. Nevertheless, the support given by BIM to FM is far from being fully effective. Technicians can benefit from real-time communication with the data repository whenever the need for gathering contextual information and/or updating any data in the digital model arises. The framework proposed in this study aims to develop a system that supports on-site operations. Information requirements have been determined from the analyses of procedures that are usually implemented in the building life cycle. These studies set the standard for the development of a digital model of a building, which will be shared among various actors in charge of FM and accessed via a cloud platform. Moreover, mixed reality is proposed to support specific information that is relevant to geometric features and procedures to be followed by operators. This article presents three use-cases supported by the proposed framework. In addition, this research article describes the first proof of concept regarding real-time support for FM.

关键词: information flow management     BIM     mixed reality     common data environment     facility management    

Research on the Giant and Complex Financial Information System Engineering Management from the Perspectiveof Meta-synthesis Methodology—with the Bank Card Information Exchange System Engineering as a Sample

Hong-feng Chai,Quan Sun

《工程管理前沿(英文)》 2016年 第3卷 第4期   页码 404-413 doi: 10.15302/J-FEM-2016037

摘要: The paper empirically studies the engineering practices of the national currency circulation information system-China Union Pay’s Bankcard Information Exchange System. By integrating the meta-synthesis methodology and the financial information system engineering, the paper proposes basic principles and processes of the giant and complex financial information system engineering management, and further explores its paradigm and toolkit.

关键词: financial information system     meta-synthesis methodology     bank card     information exchange    

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

摘要:

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    

Owner-dominated building information modeling and lean construction in a megaproject

Mingyue LI, Zhuoling MA, Xi TANG

《工程管理前沿(英文)》 2021年 第8卷 第1期   页码 60-71 doi: 10.1007/s42524-019-0042-3

摘要: The integration of building information modeling (BIM) and lean construction (LC) provides a solution for the management of megaprojects. Previous studies have generally focused on the theoretical or empirical adoption of BIM and LC. Moreover, only a few studies have examined the approach of simultaneously using BIM and LC in megaprojects. Therefore, an intensive study on the application of BIM and LC in megaprojects, particularly to explore considerably effective integrated application modes of BIM and LC in megaprojects, will substantially promote the management efficiency of megaprojects. The current study describes a method that integrates owner-dominated BIM and LC that was developed in a case study. The proposed method provides a framework for all stakeholders to use BIM and LC in a megaproject dominated by the owner. The interactional relations among the owner, BIM, and LC were analyzed and positive interactions were identified. These positive interactions served as a basis for the implementation of this integrated approach in a case study and could be applied to other megaprojects. The megaproject (i.e., airport construction project) was examined to verify the performance of the developed method. Results showed that the integration of BIM and LC dominated by the owner can improve management performance and achieve high quality standard.

关键词: building information modeling     lean construction     airports     project management    

Relationship between Chief Executive Officer characteristics and corporate environmental information

Dayuan LI, Aiqi LIN, Lu ZHANG

《工程管理前沿(英文)》 2019年 第6卷 第4期   页码 564-574 doi: 10.1007/s42524-019-0067-7

摘要: This study focuses on the influence of Chief Executive Officer (CEO) characteristics on environmental information disclosure (EID) in the annual reports of companies listed on the Stock Exchange of Thailand. A regression analysis method is used to explore the relationship between CEO characteristics and corporate environmental disclosure. Pollution-intensive companies are taken as the samples in this study. Results show that financial expertise, educational level, and tenure of CEOs are positively correlated with corporate EID. By contrast, age or gender of CEOs is insignificantly related to EID.

关键词: CEO characteristics     environmental information disclosure     Thailand    

建筑信息物理模型:一种建筑信息描述新形式

杨启亮,邢建春

《中国工程科学》 2023年 第25卷 第5期   页码 222-232 doi: 10.15302/J-SSCAE-2023.07.027

摘要: BIM handbook: A guide to building information modeling for owners, managers, designers, engineers andIFC-graph for facilitating building information access and query [J].IFC-graph for facilitating building information access and query [J].International Journal of Geo-Information , 2018 , 55 7 : 1 ‒ 18 .">34]。International Journal of Geo-Information , 2018 , 55 7 : 1 ‒ 18 .

关键词: 建筑信息描述;信息模型技术;建筑信息模型(BIM);数字孪生;建筑工业软件    

信息系统动力学的基础和应用 Article

许建峰, 刘振宇, 王树良, 郑涛, 王雅实, 王赢飞, 党迎旭

《工程(英文)》 2023年 第27卷 第8期   页码 254-265 doi: 10.1016/j.eng.2022.04.018

摘要:

Although numerous advances have been made in information technology in the past decades, there is still a lack of progress in information systems dynamics (ISD), owing to the lack of a mathematical foundation needed to describe information and the lack of an analytical framework to evaluate information systems. The value of ISD lies in its ability to guide the design, development, application, and evaluation of large-scale information system-of-systems (SoSs), just as mechanical dynamics theories guide mechanical systems engineering. This paper reports on a breakthrough in these fundamental challenges by proposing a framework for information space, improving a mathematical theory for information measurement, and proposing a dynamic configuration model for information systems. In this way, it establishes a basic theoretical framework for ISD. The proposed theoretical methodologies have been successfully applied and verified in the Smart Court SoSs Engineering Project of China and have achieved significant improvements in the quality and efficiency of Chinese court informatization. The proposed ISD provides an innovative paradigm for the analysis, design, development, and evaluation of large-scale complex information systems, such as electronic government and smart cities.

关键词: System-of-systems engineering     Information theory     Information measurement     Information systems dynamics     Judicial informatization    

标题 作者 时间 类型 操作

Real-time immune-inspired optimum state-of-charge trajectory estimation using upcoming route informationpreview and neural networks for plug-in hybrid electric vehicles fuel economy

Ahmad MOZAFFARI,Mahyar VAJEDI,Nasser L. AZAD

期刊论文

含磷低硅TRIP 钢快速退火组织演变行为研究

陈蓬,沈春豫,许云波,王国栋

期刊论文

新型热轧低碳TRIP 钢的轧制工艺与疲劳性能

刘自权,谭小东,杨小龙,许云波,吴迪,王国栋

期刊论文

TRIP 钢无缝管的开发及其成形性分析

张自成,朱伏先

期刊论文

δ-TRIP 钢的物理与力学冶金

易红亮,陈蓬,王国栋,马鸣图

期刊论文

高锰TWIP/TRIP 钢研究进展与应用

张维娜,刘振宇,王国栋

期刊论文

Parameter identification of interconnected power system frequency after trip-out of high voltage transmission

Xuzhan ZHOU,Shanshan LIU,Mingkun WANG,Yiping DAI,Yaohua TANG

期刊论文

乘坐21 世纪40 年代的高铁旅行而归

Ignacio Barron

期刊论文

Framework based on building information modeling, mixed reality, and a cloud platform to support information

Berardo NATICCHIA, Alessandra CORNELI, Alessandro CARBONARI

期刊论文

Research on the Giant and Complex Financial Information System Engineering Management from the Perspectiveof Meta-synthesis Methodology—with the Bank Card Information Exchange System Engineering as a Sample

Hong-feng Chai,Quan Sun

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

Owner-dominated building information modeling and lean construction in a megaproject

Mingyue LI, Zhuoling MA, Xi TANG

期刊论文

Relationship between Chief Executive Officer characteristics and corporate environmental information

Dayuan LI, Aiqi LIN, Lu ZHANG

期刊论文

建筑信息物理模型:一种建筑信息描述新形式

杨启亮,邢建春

期刊论文

信息系统动力学的基础和应用

许建峰, 刘振宇, 王树良, 郑涛, 王雅实, 王赢飞, 党迎旭

期刊论文