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Computer aided process planning system based on workflow technology and integrated bill of material tree

LU Chun-guang, MENG Li-li

《机械工程前沿（英文）》 2006年第1卷第3期页码 305-312 doi: 10.1007/s11465-006-0039-6

摘要： It is extremely important for procedure of process design and management of process data for product life cycle in Computer Aided Process Planning (CAPP) system, but there are many shortcomings with traditional CAPP system in these respects. To solve these questions, application of workflow technology in CAPP system based on web-integrated Bill of Material (BOM) tree is discussed, and a concept of integrated BOM tree was brought forward. Taking integrated BOM as the thread, CAPP systematic technological process is analyzed. The function, system architecture, and implementation mechanism of CAPP system based on Browser/Server and Customer/Server model are expatiated. Based on it, the key technologies of workflow management device were analyzed. Eventually, the implementation mechanism of integrated BOM tree was analyzed from viewpoints of material information encoding, organization node design of integrated BOM tree, transformation from Engineering BOM (EBOM) to Process BOM(PBOM), and the programming implementation technology.

关键词： PBOM systematic technological implementation technology management workflow technology

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Utilizing big data to build personalized technology and system of diagnosis and treatment in traditional

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《医学前沿（英文）》 2014年第8卷第3期页码 272-278 doi: 10.1007/s11684-014-0364-9

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关于农业信息科学形成的讨论

王人潮,黄敬峰,史舟,王珂

《中国工程科学》 2000年第2卷第6期页码 80-83

摘要：

文章从农业信息科学发展的科学背景、技术背景和应用背景，提出农业信息科学的定义及其科学体系，着重讨论了作为一门应用科学的农业信息科学的核心——农业信息技术的组成及其功能。

关键词：农业信息科学农业信息技术卫星遥感技术地理信息技术全球定位技术计算机网络技术

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Fixturing technology and system for thin-walled parts machining: a review

《机械工程前沿（英文）》 2022年第17卷第4期 doi: 10.1007/s11465-022-0711-5

摘要： During the overall processing of thin-walled parts (TWPs), the guaranteed capability of the machining process and quality is determined by fixtures. Therefore, reliable fixtures suitable for the structure and machining process of TWP are essential. In this review, the key role of fixtures in the manufacturing system is initially discussed. The main problems in machining and workholding due to the characteristics of TWP are then analyzed in detail. Afterward, the definition of TWP fixtures is reinterpreted from narrow and broad perspectives. Fixture functions corresponding to the issues of machining and workholding are then clearly stated. Fixture categories are classified systematically according to previous research achievements, and the operation mode, functional characteristics, and structure of each fixture are comprehensively described. The function and execution mode of TWP fixtures are then systematically summarized and analyzed, and the functions of various TWP fixtures are evaluated. Some directions for future research on TWP fixtures technology are also proposed. The main purpose of this review is to provide some reference and guidance for scholars to examine TWP fixtures.

关键词： thin-walled part (TWP) fixture machining fixture categories fixture function

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Computer-Aided Design System for CP Single-Screw Compressor

SHEN Jing-feng, YAO Fu-sheng

《机械工程前沿（英文）》 2006年第1卷第1期页码 21-25 doi: 10.1007/s11465-005-0018-3

摘要：

To design various optimum parameters and simulate the working process of CP single-screw compressor, the Computer-Aided Design (CAD) system for the CP single-screw compressor has been established. A new method based on computer graphics technology, database technology, object-oriented programming technology, and visual simulation technology has been adopted in this CAD system. The system has integrated solid modeling function with parameterization design function and animator simulation function based on analyzing the working principle of the CP single-screw compressor. The experimental results show that the CAD system for the CP single-screw compressor is practical and feasible.

关键词： CP single-screw database technology simulation technology programming technology animator simulation

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Digital technology-driven smart society governance mechanism and practice exploration

《工程管理前沿（英文）》 2023年第10卷第2期页码 319-338 doi: 10.1007/s42524-022-0200-x

摘要： A smart society is an advanced form of society following agricultural society, industrial society, and information society, with digital data processing system as its main carrier. However, the governance of a smart society still faces many challenges. In view of this problem, first, this research constructs a smart society governance modernization strategy. Second, the innovation mode of a society governance mechanism driven by digital technology is proposed, including the precise intellectual control of a digital twin, the intelligent ubiquitous sensing of the Internet of Things, the empowerment remodeling of a blockchain and the livelihood service of artificial intelligence. Third, this study systematically explores the practice of smart society governance modernization from the aspects of basic information platform construction, evaluation system construction, application demonstration of epidemic prevention and control driven by big data, support of spatial intelligence and artificial intelligence technology for people’s livelihood, smart campus, public resources, and data governance application demonstration to provide theoretical guidance for promoting digital technology innovation in the process of the governance of a smart society.

关键词： digital technology new infrastructure smart society governance system governance modernization

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Optimal dispatch of multi energy system using power-to-gas technology considering flexible load on user

Zi LING, Xiu YANG, Zilin LI

《能源前沿（英文）》 2018年第12卷第4期页码 569-581 doi: 10.1007/s11708-018-0595-6

摘要：

The relation between power-to-gas technology (P2G) and energy interconnection becomes increasingly close. Meanwhile, the participation of flexible load on user side in system optimization has attracted much attention as an efficient approach to relieve the contradiction between energy supply and energy demand. Based on the concept of energy hub, according to its series characteristic, this paper established a generic multi-energy system model using the P2G technology. The characteristic of flexible load on user side was considered and optimal dispatch analysis was made, so as to reduce the cost, to reasonably dispatch the flexible load, to reduce the discharge, to enhance the new energy output, and to increase the power-to-gas conversion efficiency. Finally, a concrete analysis was made on the optimal dispatch result of the multi-energy system using the P2G technology considering flexible load on user side in the calculating example, and optimal dispatch of the system was verified via four different scenarios. The results indicate that cooperative dispatch of multi-energy system using the P2G technology considering flexible load on user side is the most economic, and can make a contribution to absorption of new energy and P2G conversion. In this way, environmental effects and safe and stable operation of the system can be guaranteed.

关键词： multi-energy system energy hub series characteristic optimal dispatch flexible load

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Low-carbon technology calls for comprehensive electricity-market redesign

Yang YU

《工程管理前沿（英文）》 2019年第6卷第1期页码 128-130 doi: 10.1007/s42524-019-0020-9

摘要：

The energy transition also calls for electricity- market redesign. Low-carbon technologies will fundamentally reshape the electricity sector. The electricity generation and demand will be significantly unpredictable and uncontrollable thus require for a more sophisticated system operation to guarantee the grid stability and reliability. The higher difficulty induced by the green-technology penetration expose the electricity-market to a higher market-failure risk. Thus, the future low-carbon electricity-market and associated regulation scheme require a comprehensive new design.

关键词： low-carbon technology electricity-system operation market design

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Review of fluid and control technology of hydraulic wind turbines

Maolin CAI, Yixuan WANG, Zongxia JIAO, Yan SHI

《机械工程前沿（英文）》 2017年第12卷第3期页码 312-320 doi: 10.1007/s11465-017-0433-2

摘要：

This study examines the development of the fluid and control technology of hydraulic wind turbines. The current state of hydraulic wind turbines as a new technology is described, and its basic fluid model and typical control method are expounded by comparing various study results. Finally, the advantages of hydraulic wind turbines are enumerated. Hydraulic wind turbines are expected to become the main development direction of wind turbines.

关键词： wind turbine hydraulic system fluid model control technology

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Technology and system of constraint programming for industry production scheduling

Yarong CHEN, Zailin GUAN, Yunfang PENG, Xinyu SHAO, Muhammad HASSEB

《机械工程前沿（英文）》 2010年第5卷第4期页码 455-464 doi: 10.1007/s11465-010-0106-x

摘要： The use of techniques and system of constraint programming enables the implementation of precise, flexible, efficient, and extensible scheduling systems. It has been identified as a strategic direction and dominant form for the application into planning and scheduling of industrial production. This paper systematically introduces the constraint modeling and solving technology for production scheduling problems, including various real-world industrial applications based on the Chip system of Cosytec Company. We trend of some concrete technology, such as modeling, search, constraint propagation, consistency, and optimization of constraint programming for scheduling problems. As a result of the application analysis, a generic application framework for real-life scheduling based on commercial constraint propagation (CP) systems is proposed.

关键词： constraint programming production scheduling constraint propagation search consistency optimization

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我国能源技术革命体系战略研究

李立浧, 饶宏, 许爱东, 郭晓斌, 白浩

《中国工程科学》 2018年第20卷第3期页码 1-8 doi: 10.15302/J-SSCAE-2018.03.001

摘要：

为了推进能源技术革命，中国工程院于 2015 年启动了“我国能源技术革命体系战略研究”重大咨询项目。本文从核能、风能、太阳能、储能、油气、煤炭、水能、生物质能、智能电网与能源网融合九大能源技术领域开展咨询调查研究，系统分析了各领域的能源技术现状，明确提出了构建以可再生能源为主体，终端能源以电能为主，多能多网融合互补的技术体系，制定了前瞻性技术（2020）、创新性技术（2030）和颠覆性技术（2050）三阶段发展的能源技术路线，最后提出推动能源技术革命的战略建议，为我国研究制订能源相关规划和政策提供了科学支撑。

关键词：能源技术革命能源技术体系能源技术路线战略研究战略建议

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建设现代农业推进农业科技创新与体制改革

卢良恕

《中国工程科学》 2008年第10卷第2期页码 4-6

摘要：

农业科技在现代农业建设的过程中发挥着重要作用。文章介绍了新时期现代农业的内涵、主要特点，指出农业科技创新是现代农业发展的强大支撑，农业科技体制改革是现代农业发展和服务“三农”的需要。

关键词：现代农业科技创新体制改革

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System and prospects of China’s intercity rail transit technology

Ming GONG

《机械工程前沿（英文）》 2018年第13卷第2期页码 323-328 doi: 10.1007/s11465-018-0463-4

摘要：

City clusters and metropolitan areas in China are flourishing in the midst of the deepening urbanization in the country, thereby resulting in the emergence of intercity rail transit. Intercity railways connect mainline and urban railways for an integrated regional transportation system that underpins and leads the development of city clusters and metropolitan areas. This study explores the development mode and service characteristics of intercity rail transit, as well as proposes overviews on this system and prospects of its future technology in China.

关键词： intercity rail transit city cluster technical demand technology system

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西部交通科技项目绩效评价体系研究及系统设计初探

赵杰华,康厚荣

《中国工程科学》 2008年第10卷第12期页码 73-78

摘要：

在明确交通科技项目实施流程的基础上，站在后评价视角分析项目的社会经济效益，制订出一套相对完善的项目评价标准，同时应用Microsoft Visual Basic 6.0和Access 2003搭建系统框架，充分实现交通科技项目评价的科学性、有效性、合理性，促进决策过程的程序化、科学化。

关键词：西部交通科技项目绩效评价后评价指标体系

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三峡升船机平衡重系统安装技术

蔡春华,罗彬

《中国工程科学》 2013年第15卷第9期页码 70-76

摘要：

针对三峡升船机平衡重系统安装要求并结合现场综合环境，对三峡升船机平衡重系统安装技术进行研究。提出了适宜三峡升船机平衡重系统安装的总体程序，并分别对总体程序中的平衡链导向装置安装、平衡滑轮组安装、主提升钢丝绳安装和平衡重组安装等子工序提出了详细的施工流程以及施工方法，建立了一套完整的升船机平衡重系统安装技术体系。该项施工技术有效解决了三峡升船机平衡重系统安装过程中面临的工程规模大、构件尺寸质量大、技术精度要求高、安装高程高、施工难度大、施工点多面广和施工现场条件复杂等技术难点，为国内外类似工程实践提供了很好的参考。

关键词：三峡升船机平衡重系统安装程序安装技术