船用阻尼材料应用概况及施工工艺探讨

介绍了阻尼材料在舰船上的应用概况及对船用阻尼材料的要求,并对施工工艺进行了总结,探讨了阻尼材料的施工要点、施工质量控制、检测方法,并从施工角度提出了阻尼材料的发展方向。     

Multiple-Technique Approach for Improving a Performance Measurement and Management System: Action Research in a Mining Company

Abstract

Many enterprises encounter difficulty in managing strategic goals and performance measures because of a lack of a systemic and objective procedure and method. Action research was conducted through a case study approach at a mining company to investigate this problem regarding performance measurement and management (PMM) and to identify potential solutions for application. This research proposes a multiple-technique approach (including the Delphi method, analytic network process, system dynamics simulation, dashboard visualization, and radio frequency identification tracking techniques) and a creative implementation framework for overcoming the shortcomings within a case company and those in the relevant performance measurement literature. This study demonstrates a step-by-step approach for establishing a PMM system using a real case example. Furthermore, for sustaining the effectiveness and efficiency of the PMM system, key performance indicators (KPIs) were continually monitored against a changing operational environment through design, measurement, analysis, and improvement processes to address problem areas occurring in the production and maintenance departments of a mining company. The benefits of the PMM system in practice are demonstrated by the outcomes of the mining company, with noticeable improvements observed in many KPIs.     

媒体资产管理系统的设计与开发

结合我公司项目研究与工作实践,分析并建立了一套全新的媒体资产管理系统,该系统全新的设计理念可以使其适合广电行业的内部所有资产管理项目。自由灵活的配置可大大减少项目实施周期,与定制开发结合满足特定用户的特殊要求。     

Measuring Project Management Performance: Case of Construction Industry

This study develops construction-specific determinants and indicators of project management performance based on the 14 knowledge areas of the project management body of knowledge guide. Interrelations among the knowledge areas and influence of these factors on performance are investigated. Data collected from 121 construction projects are analyzed using structural equation modeling. Research findings suggest that project integration, communications, safety, risk, human resources, financial, and cost management have a direct impact, whereas scope and time management have an indirect effect on performance. The findings reported in this study are expected to help construction project managers devise and implement strategies and develop actions to improve project success. An engineering manager can use the framework developed in this research to define the underlying factors of efficient project management practices.     

Total Quality Management in the Engineering Services Environment

ABSTRACT

Quality management principles have been applied in a multidiscipline engineering design environment that emphasizes designing and building advanced technical facilities. The formulation of group objectives and annual goals and the alignment of improvement actions are discussed. The improvement process involves organizational, team, and individual actions supported by multi-tiered measurements and training. Both customer satisfaction and critical group performance measures have shown important improvements over the past 4 years.     

空间机器人柔性臂动力学建模,分析,控制与仿真的研究

空间机器人柔性臂是一个非常复杂的非线性，强耦合的动力学系统，其这的研究是比较复杂和困难的问题，本文对其建模，分析到控制与仿真等各个方面，结合国内外和发展的状况，综合性地进行了分析，并对一些需要重点解决的问题进行了较详细的研究与探讨，最后，指出了研究与发展的方向。     

2007 Index of EMJ Articles

Abstract:

Enterprise risk management (ERM) has emerged as the new paradigm in risk management with the goal of holistically managing all risks facing an enterprise. Yet organizations still manage risks in a piece-meal fashion and struggle to effectively implement ERM and manage complex strategic risks. This article proposes a solution to this problem: ERM implementation using a system dynamics approach, which enables integrating risks in a causal modeling environment that includes feedback and delays. The methodology is then described using the ISO 31000 Risk Management Standard and illustrated using an example.     

精益价值管理在产品制造流程中的运用

分析了某产品制造流程中过量生产、库存积压、缺货等问题形成的原因和改进的必要,提出了运用精益价值管理的思想和方法对生产过程进行重新构建,介绍了进一步运用精益思想和先进计算机技术对生产管理手段进行改进,使生产部门建立以市场需求拉动零件生产的精益生产方式．实践表明,对生产模式的精益化改造大大缩短了生产周期,提高了产品质量,提高了合同履约率．     

论管理组织对管理信息系统的影响

讨论了管理组织的５个分系统对管理信息系统的影响,探讨了组织的变革与管理信息系统的未来,并提出建立管理信息系统时在管理组织上的建议。     

未来轰炸机热管理系统方案及关键技术浅析

通过对国外飞机先进热管理系统的分析,提出了我国未来轰炸机机的综合热管理系统,并对系统的初步方案及关键技术进行了初步分析,为国内研制未来轰炸机热管理系统系统提供了参考。     

创造性思维中可能性构造空间理论的动力学模型

在分析了创造性思维的深层特征后，根据非线性动力学特别是混沌动力学的观点，在认识心理学和神经生物学的基础上论述了创造性思维中的可能性构造空间理论的非线性学原理；建立了创造性思维的非线性动力学模型。     

加工过程决策的分级动态规划策略

基于在加工过程分析的基础上,建立了适合于加工过程决策的基于表面的零件网络信息模型,在此基础上,探讨了加工过程优化决策的方法,提出分级动态规划的工艺过程的决策策略,研究了加工优化排序的算法。     

Single-Spark Analysis of Electro-Discharge Deposition Process

Electro-discharge deposition (EDD) process is one of the newly developing, nonlithographic additive manufacturing methods to fabricate 3D microproducts. The advantage of the EDD process is that 3D microcomponents can be manufactured from the materials which are electrically conductive in nature. In this paper, a comprehensive attempt to develop a thermophysical model for single discharge deposition process has been reported. Experiments are designed and conducted by central composite design (CCD) and the obtained results are compared with simulation results. Parametric analysis is carried out to study the effects of EDD process parameters like current, pulse-on time, and duty factor on height, width, and weight of deposition. The objective of this research work is to simulate and predict the material deposition mechanism of EDD process in a single pulse. Simulation results are compared with experimental results and it is found that the developed model can predict results which are closer to experimental results. It is concluded from the results that the thermophysical model can be further modified to establish EDD process with optimum process parameters.     

并行工程管理系统研究

并行工程管理系统是并行工程的核心，它由产品开发过程建模仿真与优化子系统和产品开发过程管理与协调子系统组成。本文讨论了开发过程建模的ＩＤＥＦ３过程描述获取方法，提出了系统的体系结构和主要功能，建立了面向对象的产品开发过程仿真机制。     

An Application of Stochastic and Dynamic Models for the Control of a Papermaking Process

A statistical approach to model a papermaking process and to control paper basis weight is presented. The process behavior is described by a mathematical model which takes into consideration both the input-output dynamics and disturbances coming into the system. The model building procedure was based on a three-step approach of identification, estimation and diagnostic checking. The disturbance model is accounted for by a discrete time series model, whereas the dynamic model is a discrete transfer function model. The simplicity of the modeling process lies in the fact that only the input-outpul data are necessary without recourse to a complicated analysis of the physical system itself.

An optimal control equation was arrived at whereby the basis weight of the paper was to be controlled at a specified target value. Confirmation runs were conducted to check the effectiveness of the control equation.     

Dynamic Systems-Engineering Process: The Application of Concurrent Engineering

ABSTRACT

In recent years, the traditional systems engineering and project management approaches used by the U.S. Government have been ineffective in incorporating complete life cycle impacts and rapidly evolving technologies and operations concepts into large system developments or upgrades. This is particularly true for the National Aeronautics and Space Administration (NASA) and the U.S. Department of Defense (DOD). Although this article concentrates on large government systems, these shortcomings also apply to the industrial product development process. Solving this problem will strengthen manufacturing competitiveness for any international competitor.

This article addresses the problem and describes a systems engineering methodology, dynamic systems-engineering, which enables users to accommodate changing needs; incorporate emerging technologies; identify, quantify, and manage system risks; manage evolving functional requirements; track the changing environment; and reduce system life cycle costs.     

地理信息系统(GIS)在土地管理中的应用——以浦东新区土地管理信息系统为例

随着土地部门工作性质和需求的不断变化及深入,将GIS软件应用于土地管理也日趋体现出其价值所在。本文在阐释GIS与土地管理信息系统的基本概念以及二者相互关系的基础之上,以上海市丝绸之路有限公司所开发的浦东新区土地管理信息系统为例,详细介绍了系统的设计思想、功能模块以及关键技术,从而全面地、详细地、多方位地展示了GIS在土地管理中所发挥出的强大优势和显著成效。     

Management of Concurrent Engineering: Organizational Concepts and a Framework of Analysis

ABSTRACT

This article examines the concept of concurrent engineering and presents a framework for evaluating its management. The key organizational concepts for managing new product development are first analyzed from a historical perspective. The concurrent engineering approach to new product development is then contrasted with both the traditional sequential and the more recent overlapping problem-solving approaches. Finally, a model for managing current engineering is presented. The model consists of five critical components that may be used by engineering managers for guiding the implementation of their concurrent engineering efforts.     

精益生产和敏捷制造在集成供应链 管理系统中的综合应用

在分析精益生产和敏捷制造这两种生产模式各自特点及其相互关系的基础上,研究了它们在集成供应链管理系统中的综合应用,指出敏捷制造适于处理供应链中动态变化的市场需求,而精益生产则提供了供应链优化运行所需的均衡生产调度并降低系统的运行成本。     

Hotspots Evolution and Frontier Analysis of Lean Construction Research—Integrated Scientometric Analysis using the Web of Science and Scopus Databases

To develop a lean and green construction industry, Lean Construction (LC) is proposed as a new construction production method to improve the efficient use of resources and the value of construction supply chains, which has received increasing research concerns from scholars and practitioners. Based on related articles covered by the Web of Science and Scopus databases between 1995 and 2014, this study conducts a scientometric analysis. The analysis identifies four core topics in existing research, including: Last Planner System (LPS); production control theory; improvement and evaluation of productivity; and principle of value. Three major directions of LC research: greening LC; Building Information Modeling (BIM) based LC; and lean safety management, are also proposed. Lastly, several recommendations for future LC research and practice are provided in the literature review.