基于Flexsim的集装箱后端框生产线的仿真优化研究

将计算机仿真及工业工程方法相结合,对现行生产线进行平衡改善及优化,是提高企业产品生产线效率的有效方法。针对某集装箱生产企业的后端框生产线的实际情况,建立Flexsim仿真模型,并对得出的运行结果进行分析,找出瓶颈工序。基于5W1H和ECRS原则等工业工程方法,分别对物流设备和产线布局进行优化设计。最后对改善方案进行仿真模拟,以便验证方案的有效性和可行性。结果表明,此优化方案的实施可显著提高生产线的生产效率并提升经济效益。     

基于Flexsim的汽车空调生产线优化研究

针对A公司汽车空调生产线产品制造节拍不平衡问题,提出一种应用三维仿真软件进行模拟优化的优化方案.结合实际生产流程,采用Flexsim软件建立仿真模型,挖掘关键瓶颈工序,制定优化方案,合理进行资源配置优化,进而提高该生产线生产效率和产能.     

基于Flexsim的汽车空调生产线优化研究

针对A公司汽车空调生产线产品制造节拍不平衡问题,提出一种应用三维仿真软件进行模拟优化的优化方案.结合实际生产流程,采用Flexsim软件建立仿真模型,挖掘关键瓶颈工序,制定优化方案,合理进行资源配置优化,进而提高该生产线生产效率和产能.     

基于达宝易与Flexsim的生产线优化研究

提出基于达宝易(计算机辅助工作研究软件)与Flexsim仿真相结合的生产线优化方法。以某产品生产线为例,运用达宝易分析其流程、确定标准时间及产能;将数据导入Flexsim进行仿真,识别瓶颈问题;提出优化方案并进行仿真评估;结果表明:线平衡率提高20.2%,产能提高每小时10件;从而优化了生产线。     

基于Petri网的装配生产过程建模与仿真分析

针对一机电产品装配生产线,介绍了应用Flexsim仿真系统进行生产线建模与仿真的流程和步骤,研究讨论了建立生产线Petri网理论模型及Petri网模型转换为Flexsim仿真模型的方法。通过生产过程仿真结果分析,找到了影响该生产线生产率的瓶颈环节,并提出了生产线优化及改进方案。     

基于F公司现有生产线的仿真及优化

应用Flexsim仿真软件,对F公司实际的汽车零部件生产线进行仿真,分析仿真数据并结合生产线实际状况,以解决生产瓶颈、生产平衡和提高效率为优化目的,确定生产线优化方案,根据条件判断优化方案的可行性。     

X公司轻卡底盘生产线平衡优化与仿真研究

以X公司的轻卡底盘生产线为研究对象,借助lingo软件运用0-1整数规划模型对生产线进行优化改进,得出优化后的方案,并运用Flexsim仿真软件对优化前后的方案进行仿真并对比验证优化效果,能够降低轻卡底盘生产线生产节拍和提高生产线平衡率,最终实现生产线高效运作。     

转向单元装配线仿真建模及优化研究

利用Flexsim仿真软件,建立了转向单元装配线的仿真模型。通过对仿真模型运行结果的分析,有针对性地利用启发式平衡方法对装配线进行平衡优化,提出对合装工艺、锁紧工艺、密封工艺等几方面的优化仿真方案。采用优化方案后,装配线平衡率由41.82%提升到75.75%,工位由36个减少到28个,节拍由90秒减少到60秒。解决了整条装配线不平衡、生产率低的问题,提高了企业的经济效益。     

基于FLEXSIM的杂质泵生产线仿真改善

针对某杂质泵生产企业设备负荷不均衡、生产效率较低等实际问题,在较为全面搜集现场数据的基础上,应用工业工程方法及生产系统建模与仿真技术,按照车间生产线的实际,利用Flexsim仿真软件建立仿真模型并进行仿真。通过对仿真结果的分析,得到现有生产线的生产瓶颈,提出对生产现场进行优化改善的方案,并利用仿真手段验证了改善方案的有效性。     

基于Flexsim的装配线平衡问题研究

为了使我国企业在全球市场竞争中赢得一席之地,寻求一套适合企业自身的生产线平衡方式,成为解决生产线诸多问题、提高生产效率、降低生产成本的当务之急。现应用Flexsim仿真软件,根据对某卡车装配线的不同算法计算得到的三种方案以及原始方案,建立了不同的仿真模型,通过多次模拟实验,输出由各项绩效评价指标来比较得出的各方案的优化效果。     

基于PetriNets和混合遗传算法的双资源JSP动态优化调度

以带有控制器的Petri网为建模工具对柔性生产调度中的离散事件建模,利用遗传算法和模拟退火算法获得调度结果,并通过Petri网进行控制.用于解决作业车间的加工受到机床、操作工人等生产资源制约条件下的优化调度.以生产周期为目标进行的优化调度,将遗传算法和模拟退火相结合.通过多种交叉、变异、概率更新选择、再分配策略等遗传和模拟操作,得到目标的最优或次优解.对算法进行了仿真研究,仿真结果表明该算法是有效性.     

A collaborative manufacturing execution platform for space product development

Space product development enterprise has the feature of single piece or small batch productions, in which the product manufacturing process changes frequently, key components need process preparation, and production scheduling problem is often complicated. According to the development process of space products, a collaborative platform under network-based manufacturing environment for space products development is proposed in this paper. The main structure of the platform and the cooperation process between each application modules are proposed. Moreover, a kind of dynamic job shop scheduling algorithm is presented. The algorithm is used to realize rapid response and adjust manufacturing plan when production or process plan has changed. Finally, a prototype system that supports space product manufacturing process management is developed and a case study is presented to demonstrate the efficiency of proposed algorithm.     

基于仿真的车间作业计划系统研究

基于仿真的车间作业计划系统可以增加系统的透明度,提高计划执行率.针对多品种小批量的生产模式,在eM-Plant软件上提出一种基于离散事件的仿真方案,开发了相应的系统模型和仿真算法,运行仿真系统,得到调度结果,验证所编制的车间计划的可行性.采用上述仿真系统就某军工车间一计划周期的生产任务进行仿真,根据不同优先级的仿真算法,得到合理的车间作业计划.实例证明本系统提高了车间作业计划编制有效性.     

基于多代理技术的车间计划与调度研究

对分布式车间生产计划与调度过程进行了研究,并在基于多代理（multi-agent）的车间管理控制系统中实现。     

一种复杂产品总装工艺流程设计方法研究

围绕复杂产品总装工艺流程设计问题,从装配技术和企业经营管理的角度提出复杂产品总装工艺流程设计不仅是技术上的最优化,还应综合引入开工面限制、人力资源平衡、生产节拍需求以及投入产出比等因素,寻求技术与经营管理的平衡。提出了一种复杂产品总装工艺流程设计总体方案,设计了该方案的实现思路,并通过某型飞机总装工艺流程设计项目验证了方法的可行性和有效性。     

MODELING AND IMPLEMENTATION OF A DISTRIBUTED SHOP FLOOR MANAGEMENT AND CONTROL SYSTEM

Adopting distributed control architecture is the important development direction for shop floor management and control system, is also the requirement of making it agile, intelligent and concurrent. Some key problems in achieving distributed control architecture are researched. An activity model of shop floor is presented as the requirement definition of the prototype system. The multi-agent based software architecture is constructed. How the core part in shop floor management and control system, production plan and scheduling is achieved. The cooperation of different agents is illustrated. Finally, the implementation of the prototype system is narrated.     

Knowledge-based workcell controller for production planning in the electronics industry

The paper describes the analysis, design and implementation of a workcell controller using knowledge-based system technology in the electronics industry. The central task of the workcell controller is to bridge the gap between the high level production planning system of the logistics department and short-term planning at the shop floor level. Today the latter is mainly based on heuristic knowledge of a foreman. Due to the number of shop floor components involved and their rapid change the foreman is overloaded which leads to large stocks in the production and reduced flexibility. The production planning will be described as an optimisation problem optimising the degree of refinement of the production plan issued by the high level production planning system. As an analytical solution only based on operation research techniques is not feasible the proposed approach is to partly use the empirical knowledge of the foreman to reduce the solution space. To facilitate the formal specification of such combined approaches the optimisation process is presented using the terminology of production management systems (GRAI). The underlying CIM reference model is an extension of the NBS reference model towards the use of knowledge-based system technology.     

A training software tool for job shop scheduling

A software system is presented aimed at training shop floor personnel in the domain of scheduling principles. The software includes a scenario developer and an interactive shop floor simulator, supported by explanatory material in the form of on-line help. The simulator prompts the user for any decision and offers all information necessary for product, machine and batch size selection through well-structured forms. Scheduling heuristics are offered, too. Schedule quality is evaluated through a global function (cash balance), as well as through indices related to order satisfaction and various types of cost. The system is written in C++ as a Windows application and its educational nature is supported by Windows help files.     

CIMS环境下MRPⅡ制造资源计划系统的研究与开发

针对传统的ＭＲＰ系统所存在的缺陷，将车间生产作业计划与ＭＲＰ集成于一体，介绍了ＭＲＰⅡ制造资源计划系统的总体结构与开发策略，用人机交互方式可以方便地制订出主生产计划。     

敏捷制造环境下装配产品变形设计方法

为了获得满足顾客个性化需求的装配产品设计方案 ,提出了通过修改现有成熟零件的设计的变形设计方法。建立了描述装配产品构成零件之间配合关系的模型并识别出反映装配产品构成零部件之间尺寸关联关系的约束组。每个约束组的变形设计过程被归结为一个混合整数线性规划 (MILP)问题 ,而所有约束组的MILP问题的组合求解过程则反映了装配产品的变形设计优化过程。开发了软件原型系统并进行了仿真 ,仿真结果表明该方法能够在合理的时间内获得新的、可行的装配产品设计方案 ,可以作为装配产品设计方案的生成器 ,以缓解顾客个性化需求对产品设计带来的压力