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目的为了提高航空运输集装托盘使用的安全性与经济性,实现航空运输集装托盘脱胶的在线监测。方法研究一种基于优化损伤概率成像的航空运输集装托盘脱胶监测方法,该方法首先将监测区域划分为一个个矩形子区域,然后判别航空运输集装托盘脱胶发生的子区域,其次使用损伤概率成像方法对脱胶进行定位,最后结合脱胶发生的子区域计算出航空运输集装托盘脱胶的位置坐标。结果依据航空运输集装托盘的生产工艺自制了一块试件对该方法进行实验验证,定位距离误差不大于2 cm。结论基于优化损伤概率成像的航空运输集装托盘脱胶监测方法可对航空运输集装托盘脱胶进行不依赖信号传播速度的成像定位。 相似文献
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目的 探索我军不同物资的托盘单元集装方法,提高军用物资的托盘单元化水平,为集装化保障打好基础。方法 结合部队后勤保障需求与现状,从物资托盘单元集装的作用意义入手,对军用物资托盘单元集装流程以及堆码与加固方式进行研究。结果 对物资托盘集装流程进行了规范,并提出托盘选型要求,形成了箱类、盒类、袋类、桶类、瓶类、罐类、管类等不同物资包装形式的托盘单元集装方法,为军用物资实现托盘化提供了参考。结论 研究形成的集装方法有效解决了我军物资存储、运输、装卸搬运、分发配送等环节集装化水平低的问题,提高了物资在流通过程中的安全性,提升了机械化作业水平,对推动物资“托盘一贯化”作业模式发展意义重大,因此,需要对军用物资的托盘单元集装方式进行深入研究。 相似文献
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本文针对流程企业的特点,提出了流程企业生产模型设计的思想,综合运用IDEF0、IDEF1X等建模方法给出了具体的功能模型、数据模型和生产信息系统,并阐述了该模型在张家港市某纺织企业信息化系统构建和业务流程重组中的应用。 相似文献
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介绍了集成化运输包装设计系统的需求,提出了系统模型,基于此模型分析和研究了各个模块的设计流程。设计的集成化运输包装系统可以完成产品的缓冲设计、纸箱设计和托盘设计,并对方案进行组合、优化和优选。设计了系统数据库,提出了系统总体设计流程。 相似文献
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基于流程的组织再造过程模型研究 总被引:2,自引:0,他引:2
以法国施乐公司组织再造为案例进行研究,总结其成功做法,建立基于流程组织再造的多层实施体系结构.在此基础上,利用IDEF3建立基于流程的组织再造的过程模型,并给出一个案例应用. 相似文献
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玻璃容器计算机辅助设计系统的IDEFO和IDEF1x模型 总被引:1,自引:0,他引:1
从系统建模的角度,以啤酒瓶计算机辅助设计系统为例,采用IDEF方法建立CAD系统的功能模型和信息模型,为高效地建立玻璃容器计算机辅助设计系统提供了实现方法. 相似文献
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A streamlined (simplified) life cycle assessment of a conventional wooden pallet and an all‐weather, washable, re‐usable and fully recyclable plastic bulk transit packaging system used to transport empty yoghurt pottles, has been conducted using surrogate/proxy data from the Environmental Priorities Strategy (EPS) 2000 Default Method. This paper accounts for the life cycle inventory for each material used in the two transit packaging systems and their associated fabrication processes. The life cycle assessment was simplified by ignoring common factors such as the common nylon strap of both packaging systems, the common in‐house transportation, and the manufacture and maintenance of capital equipment. The system boundaries and assumptions made are also discussed. The functional unit adopted was the Environmental Load Units (ELU) of the EPS 2000 Default Method. The grand overall ELU for the wooden pallet and plastic packaging system are computed by considering the weight of the material, the volume of inventory and the distance travelled. The ELU of the wooden pallet was 18.455, while that for the plastic packaging was 4.574 at a 96.5% level of certainty. In the case of the wooden pallet, truck transport, the corrugated cardboard boxes and the LDPE liner and shrinkwrap impacted the environment most, while for the plastic packaging system truck transport and the LDPE liner were significant. The plastic packaging has a lower environmental impact than the wooden pallet for various reasons. It is lighter in weight, has more re‐usable parts and can transport more yoghurt pottles per trip. It has a long service life and is virtually fully recyclable. Copyright © 2004 John Wiley & Sons, Ltd. 相似文献
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目的针对童车市场出现的产品过度细分、生命周期短、回收和再利用难等问题,从绿色设计的主要内容和设计方法出发,结合用户需求分析,进行了可适用于0~7岁儿童通用的多功能童车设计,以解决当前童车市场产生的绿色设计问题。方法运用绿色设计内容中可拆卸性、可回收利用性和生命周期法、模块化设计法作为理论指导,通过对现有不同年龄段童车的功能与结构进行分析,提炼其共性特征和可实现多功能变换的功能与结构模块。结论使该多功能童车通过功能结构模块的变换,实现了从婴幼儿推车、幼儿三轮车和儿童自行车的功能转化与拆卸后座椅的再利用,延长了童车产品使用的生命周期,降低了资源和经济的浪费。 相似文献
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目的 针对童车市场出现的产品生命周期短、回收再利用难和产品类别过度细分等问题,从可持续设计的设计原则和设计方法出发,结合用户需求分析,进行儿童推车再设计,以解决当前儿童推车造成的家庭开支大,占用空间,实用性不强等可持续设计问题。方法 基于产品全生命周期理论对儿童推车的可持续性进行分析,将儿童推车生命周期各个阶段的可持续利用率最大化,再应用模块化理念进行结构设计,通过分析现有儿童推车的功能与结构,提炼其共性特征和可实现多功能变换的功能与结构模块。结论 使该多功能童车通过功能结构模块的变换,实现在儿童推车、购物拖车与助行拐杖之间的功能转化,以及拆卸后座椅的再利用。应用可持续儿童推车设计流程,有效地延长儿童推车的生命周期,发挥儿童推车使用后的余热,满足用户多样化、个性化的需求,减少对资源的浪费和经济损失。 相似文献
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The pallet loading problem has historically been addressed in two-dimensions by attempting to maximize the pallet area utilized in each loading layer. This paper investigates a constrained version of three-dimensional pallet loading problem with mixed box sizes. This loading method allows many boxes of various sizes to be placed onto the same pallet. A restriction is placed on the number of boxes of each size that can be loaded. The modeling procedure presented converts the three-dimensional pallet loading problem into a standard mixed 0-1 integer programming model. The solution procedure for the formulated model is also described. 相似文献
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IDEF*: A comprehensive modelling methodology for the development of manufacturing enterprise systems
To completely describe a manufacturing system, several models are usually created, each from a different viewpoint. Traditionally, these models were created independently using different methodologies and in different environments. This approach poses many problems, for example, time-consumption, incompatibility between models, difficulties in model maintenance, difficulties in ensuring a seamless transition in the system development life cycle, etc. To overcome these problems, a comprehensive modelling methodology and its supporting software tool have been developed at Gintic. The methodology, termed IDEF*, is CIMOSA-compliant, IDEF0-based, and integrated. The purpose of this paper is to introduce to the readers these features of the methodology, and the structure and components of the software tool. 相似文献
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IDEF0,IDEF1X方法辅助软件工具通过计算机的交互操作,帮助IDEF方法用户完成信,包建模工作,从而保证建模的质量和效率,促进计算机在制造业及其它企事业中的应用。本文简要介绍IDEF方法及IDEF0和IDEF1X方法辅助软件工具的主要功能及特点。 相似文献