三维仿真及Java在液压零件库开发中的应用

通过应用两种三维仿真软件Pro/E及UG,结合它们的优势,完成了若干系列装备液压系统零件库原始虚拟样机的建立,同时解决了三维模型虚拟样机在Java网络环境下的嵌入式应用,以SQL Server 2000作为系统后台数据库,应用成熟的Java技术完成对系统零件库的各种网络应用功能,从而开发了一个具有扩展功能的实用化网络装备液压系统零件库.最后提出了在此零件库基础上利用Lab View技术实现虚拟零件实验的设计思路.     

中小企业物流信息共享平台

鉴于中小企业在建设自己的物流信息系统中存在着资金和技术上的难题, 课题组采用PaaS模式开发了中小企业物流信息共享平台. 阐述了中小企业物流信息共享平台的运营模式, 明确了系统的功能. 平台架构包含多层, 采用Force数据模型和两种数据隔离方式构建数据库, 通过服务器集群和数据库垂直切分实现系统扩展. 通过对系统原型试用发现, 用户体验良好, 系统可以提高中小企业商品流通的管理效率, 有力降低企业物流信息化建设的门槛.     

混合模式组建工艺敏捷响应系统

针对制造企业的现状，在比较B／S和C／S两种网络数据库开发模式各自特点的基础上，结合工艺敏捷响应系统所要实现的功能，提出采用混合模式来完成工艺敏捷响应系统的设计，并探讨了各子系统的功能、实现模式和系统的数据库访问方式。     

基于PLIB标准面向零件族的零件库信息模型及其表达

建立零件库的目的是通过有效的零部件供应渠道和整个供应链的信息集成实现企业间和企业内部零件资源共享.不同应用系统(如CAD)间的数据表达与交换成为零件库资源共享的关键和瓶颈问题.本文基于PLIB(ISO13584)标准,面向零件族,用形式化的方法和统一的数据格式表达零件库信息,建立零件库信息模型.文章首先分析了对零件库信息表达的需求,然后介绍了PLIB标准,最后描述基于PLIB标准的零件库信息模型,并且结合法兰盘零件族,介绍了基于ISO10303-21的零件族信息物理文件表达.     

新型国家标准件零件CAD库建立

本文介绍了一种新型的国家标准件零件CAD库，具体描述了其系统结构、数据结构和主要的实现技术。该系统融合了数据库和计算机辅助设计等多种技术，具有灵活的输入手段，自行建立本部门常用零件库的能力和友好的人机界面，实现了机械设计过程中快速查阅零件参数、自动生成零件各向视图的二维图形和三维模型，提高了设计工作的质量和效率。     

动态虚拟零件库的研究与开发

本文以SolidWorks、SOIidEdge等软件为开发平台进行了在网络环境下ASP.NET技术与Web数据库技术相结合的多平台虚拟零件库的开发．实现了使中小制造企业用户在网络环境下得到标准件图库应用服务和机械零件图形远程生成服务的目的。     

基于.NET的Nx二次开发技术在标准件库中的应用

随着CAD技术的发展,CAD软件得到了广泛的应用,在这些平台上开发符合企业所需要的零件库的工作也取得了很大成果。但随着网络和信息技术的发展,这些零件库的缺点与不足也逐渐显露了出来,界面不够友好、重复开发现象严重、资源不能共享、移植性和扩展性较差等。基于现有的二次开发存在的问题,重点对CAD软件系统NX的NXOpenFor.Net的开发方式进行了研究,获取完整的开发过程,采用将交互式和批处理式相结合的二次开发模式,提出了一种新的基于UG的企业标准件数据库系统,实现了企业标准件数据库系统中的数据库和图形库同步管理。     

新型国家标准件零件CAD库建立

本文介绍了一种新型的国家标准件零件ＣＡＤ库，个体描述了其系统结构、数据结构和主要的实现技术。该系统融合了数据库和计算机辅助设计等多种技术，具有灵活的输入手段，自行建立本部门常用零件库的能力和友好的人机界面，实现了机械设计过程中快速查阅零件参数、自动生成零件各向视图的二维图形和三维模型，提高了设计工作的质量和效率。     

基于PLIB标准的零件库信息模型及其表达

建立零件库的目的是通过有效的零部件供应渠道和整个供应链的信息集成，实现企业间和企业内部零件资源共享。文中基于PLIB（ISO13584）标准，面向零件族，用形式化的方法和统一的数据格式表达零件库信息，对立零件库信息模型。首先分析对零件库信息表达的需求，然后介绍PLIB标准，最后描述基于PLIB标准的零件库信息模型；并且结合法兰盘零件族，介绍了基于ISO10303-21的零件族信息物理文件表达。     

基于B/S的飞机工装零件库系统的设计与实现

为了满足企业在工装设计领域信息化的要求,在调查研究了当前网络资源共享技术发展概况的基础上,提出了一种基于B/S模式的飞机工装零件库系统的功能模型及解决方案,并对其中的关键技术进行了重点研究和探讨,采用Java、VB.NET、SQL Server等工具完成了系统开发,实现了飞机工装零件库系统资源的网络共享.     

Service agent networks in cloud manufacturing: Modeling and evaluation based on set-pair analysis

In a cloud manufacturing system, manufacturing services form the service network and collaboration network. The performance of the networks can affect the cloud manufacturing system. Researchers can study the behavior of enterprises, service, resource and elements in cloud manufacturing through the simulation platform. In this paper, the service agent in the simulation platform can drive the manufacturing service to form a self-organization network, in order to conduct transactions and cooperation spontaneously. Thus, the service network of service agent and the collaboration network of service agent are formed. And the models of two kinds of networks are presented by the theory of Set Pair Analysis (SPA). In addition, an evaluation method for two kinds of network models is proposed. The simulation data of the networks are produced by the method of data generation in cloud manufacturing simulation platform. Finally, the evaluation methods of the networks are validated by the simulation data.     

一种面向云制造的语义BOM知识集成框架

为克服传统BOM信息集成中存在语义知识集成的缺陷, 支持BOM知识在云制造企业间无缝传递、共享和重用, 提出一种面向云制造的语义BOM知识集成框架。该集成框架由语义BOM知识表示、知识映射、知识服务三个模块构成。知识表示模块融合本体论, 用owl DL进行语义BOM的形式化知识表示, 构建语义BOM知识本体模型; 知识映射模块基于语义BOM多视图映射方法, 形成云制造企业所需语义BOM视图; 知识服务模块以Web service为媒介, 将各语义BOM视图封装成知识服务, 通过服务注册、绑定、发现、组合等手段, 实现BOM知识的共享和重用。该框架能支持云制造企业按需在知识重用基础上快速重构BOM知识模型。     

From cloud computing to cloud manufacturing

Cloud computing is changing the way industries and enterprises do their businesses in that dynamically scalable and virtualized resources are provided as a service over the Internet. This model creates a brand new opportunity for enterprises. In this paper, some of the essential features of cloud computing are briefly discussed with regard to the end-users, enterprises that use the cloud as a platform, and cloud providers themselves. Cloud computing is emerging as one of the major enablers for the manufacturing industry; it can transform the traditional manufacturing business model, help it to align product innovation with business strategy, and create intelligent factory networks that encourage effective collaboration. Two types of cloud computing adoptions in the manufacturing sector have been suggested, manufacturing with direct adoption of cloud computing technologies and cloud manufacturing—the manufacturing version of cloud computing. Cloud computing has been in some of key areas of manufacturing such as IT, pay-as-you-go business models, production scaling up and down per demand, and flexibility in deploying and customizing solutions. In cloud manufacturing, distributed resources are encapsulated into cloud services and managed in a centralized way. Clients can use cloud services according to their requirements. Cloud users can request services ranging from product design, manufacturing, testing, management, and all other stages of a product life cycle.     

A collaborative and integrated platform to support distributed manufacturing system using a service-oriented approach based on cloud computing paradigm

Today's manufacturing enterprises struggle to adopt cost-effective manufacturing systems. Overview of the recent manufacturing enterprises shows that successful global manufacturing enterprises have distributed their manufacturing capabilities over the globe. The successes of global manufacturing enterprises depend upon the entire worldwide integration of their product development processes and manufacturing operations that are distributed over the globe. Distributed manufacturing agents' collaboration and manufacturing data integrity play a major role in global manufacturing enterprises' success. There are number of works, conducted to enable the distributed manufacturing agents to collaborate with each other. To achieve the manufacturing data integrity through manufacturing processes, numbers of solutions have been proposed which one of the successful solutions is to use ISO 10303 (STEP) standard. However, adopting this standard one can recognize antonym effects of integration and collaboration approaches that weaken both integration and collaboration capabilities of manufacturing agents. In our latest work, we had developed an integrated and collaborative manufacturing platform named LAYMOD. Albeit the platform in question was through enough to be applied in various collaborative and integrated CAx systems, its embedded structure hampers its application for collaboration in distributed manufacturing systems. To achieve an integrated and collaborative platform for distributed manufacturing agents, this paper proposes a service-oriented approach. This approach is originated from cloud computing paradigm known as one of the technologies which enables a major transformation in manufacturing industry. Also, to maintain the product data integration based on the STEP standard, a new service-oriented approach is proposed. This approach is in parallel to the new capability of the STEP standard for supporting XML data structures. The result is a new platform named XMLAYMOD. XMLAYMOD is able to support distributed manufacturing collaboration and data integration based on the STEP standard. The different aspects of this platform to fulfill the requirements of distributed collaboration and also to overcome the lacks of the STEP standard are discussed through a brief case study.     

Framework and deployment of a cloud-based advanced planning and scheduling system

Many small and medium-sized manufacturing enterprises (SMEs) have already implemented enterprise resource planning (ERP) and manufacturing execution system (MES) and began to start the journey of cloud manufacturing; however, the high cost of hardware and software investment, implementation, and maintenance usually hinder SMEs from adopting an advanced planning and scheduling (APS) system. This paper aims to develop a cloud-based APS (C-APS) system framework, the service structure, and approach of deploying the C-APS system in a public cloud infrastructure platform and service provider or hybrid cloud platform. The package diagram is proposed for building the C-APS system's virtual factory model to improve modeling efficiency and data stability. The C-APS system is a cloud-based and object-oriented software; its simulation-based scheduling engine can generate the significant production and operations schedule, and has the characteristics of on-demand self-service, quickly expanding and adjusting to the virtual plant model. The C-APS system's application in a leading automotive part assembly company's printed circuit board production scheduling shows that the input planning data model is easy to maintain. The scheduling quality is high; the computing time is short and acceptable for practical application.     

基于云存储的井下人员定位数据处理

鉴于国内目前各大煤矿企业的实际情况,对井下人员定位系统进行研究,为了改进定位产生的海量数据所存在的不安全、不完整等弊端,采用云存储代替原有的存储模式。利用云存储量身定制这一特性,在企业内部搭建私有云,以Ha-doop为技术架构,运用HBase的RowKey确定检索的主键,HDFS的NameNode与DataNode完成数据间的交互,快速、高效的查找数据。将云存储应用于企业中,帮助企业顺应时代的脚步,有利于企业的发展,具有一定的价值。     

Shop-floor resource virtualization layer with private cloud support

Large scale emergence of mature cloud solutions, ranging from software-as-a-service based solutions for business management, to very sophisticate private cloud solutions; offer the building blocks for constructing extremely flexible enterprise systems that can respond to environmental changes with great agility. Manufacturing enterprises need to adopt these new technologies to advance in a new era of mass customization where flexibility, scalability and agility are the differentiating factors. In this context, this paper introduces the virtualized MES and shop floor architecture as an intermediate layer in the manufacturing stack and discusses the advantages offered by this approach for manufacturing enterprises. A classification of MES and shop floor devices is presented focusing on the virtualization techniques suitable for each device type, considering the level of distributed intelligence and the virtualization overhead. Shop floor virtualization through shop floor profiles is presented and discussed underlying the flexibility of the solution. A pilot multi-agent implementation for virtual shop floor configuration based on the CoBASA reference architecture is presented and discussed. The shop floor profiles which define the virtual layout and mappings of the robotized manufacturing system are also provided in this context. The pilot implementation using six Adapt robots and a IBM CloudBurst 2.1 private cloud, is described and virtualization overhead in terms of event propagation delays is measured and presented in several scenarios of resource workload collocation on physical cloud blades     

面向制造任务的云制造虚拟车间构造方法

针对云制造模式下快速选择和组织相关制造资源、保证制造任务执行的问题,提出一种面向制造任务的云制造虚拟车间构造方法。该方法将制造过程抽象为制造任务执行链,链中的节点对应制造设备云服务或检验云服务,链中的有向边对应物流云服务;并通过行业域、地域和类型域来组织管理云服务,以构造规模较小的候选云服务集,同时减少功能匹配、性能匹配、价格匹配和时间匹配的计算量,达到快速构建云制造虚拟车间的目的。算例分析表明,相比其他方法,该方法能够在更短的时间内完成云服务的选择,并保证所选云服务的服务质量（QoS）在相关域中是更好的。     

面向混合数据源的企业数据库私有云设计

针对混合数据源的采集、集成和应用问题,提出一种面向混合数据源的数据库私有云设计,针对混合数据源的不同结构化程度,将数据源分成结构化、半结构化和非结构化;针对混合数据源不同的不同时序特点,数据库私有云设计定时采集和实时采集两种采集方式;为了提高混合数据源的存取效率,数据库私有云将非结构化和半结构化数据存储在分布式文件系统...