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自动化立体仓库-毕设论文外文翻译(翻译+原文)

自动化立体仓库-毕设论文外文翻译(翻译+原文)
自动化立体仓库-毕设论文外文翻译(翻译+原文)

自动化立体仓库

1自动化立体仓库的优越性

由于自动化立体仓库的特殊结构,使其在与传统的仓库相比中具有以下优点:

1.1 提高空间利用率

早期立体仓库的构想, 其基本出发点就是提高空间利用率, 充分节约有限且宝贵的土地。在西方有些发达国家, 提高空间利用率的观点已有更广泛深刻的含义, 节约土地, 已与节约能源、环境保护等更多的方面联系起来。有些甚至把空间的利用率作为系统合理性和先进性考核的重要指标来对待。自动化立体仓库的空间利用率与其规划紧密相连。一般来说, 自动化立体仓库其空间利用率为普通平库的2- 5 倍。

1.2 便于形成先进的物流系统, 提高企业生产管理水平

传统仓库只是货物储存的场所, 保存货物是其唯一的功能, 是一种“静态储存”。自动化立体仓库采用先进的自动化物料搬运设备, 不仅能使货物在仓库内按需要自动存取, 而且可以与仓库以外的生产环节进行有机的连接, 并通过计算机管理系统和自动化物料搬运设备使仓库成为企业生产物流中的一个重要环节。企业外购件和自制生产件进入自动化仓库储存是整个生产的一个环节, 短时储存是为了在指定的时间自动输出到下一道工序进行生产, 从而形成一个自动化的物流系统, 这是一种“动态储存”, 也是当今自动化仓库发展的一个明显的技术趋势。它有利于企业形成先进的物流系统,从而提高企业的整体管理水平。

1.3 可以解决备品备件等零碎物料的复杂的特性

备品备件物资供应部门管理着整个企业零零散散众多各类零部件、备品备件物资。物品的体积大小不规则, 重量不一甚至温度、湿度仓储环境要求不同造成了物资总体物理特性复杂多样的现状。解决这些不同物理特性物资合理存放与管理是自动化立体仓库在备品备件物资管理工程应用的难点。

高架库系统是解决这一问题的最有效的手段之一。这是因为:以自动化立体

库为中心的工厂物流系统,解决了生产各环节的流通问题和供求矛盾,使原材料的供给和零部件的生产数量和生产所需的数量可以达到一个最佳值;计算机网络系统的建立使原材料和零部件外购件的采购更及时和满足实际需求;计算机管理系统的建立加强了宏观调控功能,使生产中各环节生产量更能满足实际需求;建立成品库和半成品库,以解决市场供需的暂时的不一致,充分发挥企业的生产潜力。在采用自动化仓库后,库存物资占用金额比过去明显降低,节约了资金。

1.4 可以提高仓储自动化水平

自动化立体仓库作为现代化的物流设施,对提高仓储自动化水平起着举足轻重的作用,主要体现在四方面:

第一、自动化立体仓库不仅含有对底层自动化设备的控制和管理,而且针对某一具体的自动化仓库的基本数据进行管理的系统。降低了工人的劳动强度,提高了物流工作的效率。

第二、自动化立体仓库管理与控制系统是比较独立的一个子系统,可以实现对立体库所有出入库作业进行最佳分配及登录控制,并对数据进行统计分析,以便对物流实现宏观调控,最大限度地降底库存量及资金的占用,加速资金周转。

第三、自动化立体仓库对一具体仓库中的材料、货位等基本信息进行管理,优化了仓库存储的效率,管理材料的在库情况并控制仓库中的自动化设备,实现仓库中材料的自动出入库操作和存储操作。

第四、自动化立体仓库可以有效的利用空间。分离式仓库其高度受结构厂房的限制,一般不能过高。而自动化立体仓库实现了库架合一,能够承受较大的风载,其高度较高,能够有效合理地利用空间。

2. 技术发展方向

未来我国自动化立体仓库技术发展的基本趋势如下:

(1)传统产品的升级

虽然我国在过去30年间,经过几代人的努力,物流技术与产品取得了长足的发展。但从总体来说,还存在产品规格单一,工艺水平落后,产品标准落后,产品规模化生产水平低等明显劣势。这一方面将影响我国自动化物流装备产品的市场竞争能力,更为重要的是将影响我国的经济发展。因此,提高传统产品的技术含量,发展产业化水平是未来很长一段时期努力的方向。

(2)关键技术的发展

自动化立体仓库技术中的关键技术集中在高速度、高效率和高可靠性等方面。这是我国今后物流技术发展的重点之一。

高速度表现在堆垛机、输送机、分拣机产品方面。如开发速度超过300米/分的托盘式堆垛机,速度超过400米/分的穿梭车,速度达到150米/分的分拣机等。我国在这一方面还存在很大差距。尽管有企业在实验室达到了一定高度,但离实际应用还有相当一段距离。

高效率则表现在物流处理能力方面。包括分拣超过10000件的高速分拣机,综合输送超过2000件的输送机,以及效率超过100托盘/小时的高速托盘堆垛机等。

除此之外,开发自主产权的AGV,机械手等,也将成为今后发展的方向。总之,高、新、尖的发展战略仍然是今后发展的主流。

(3)信息识别技术与传动技术的发展

自动化立体仓库技术是高新技术。其中自动识别技术、自动控制技术以及传动技术是其关键和核心。然而,令人遗憾的是,我国到目前为止,这一部分绝大部分采用的是进口。这一方面是市场竞争的需要,但另一方面也说明我们的发展还处于初级阶段。如何在这一方面取得突破,可能需要若干代人的努力。

(4)系统集成技术的发展

我国自动化仓储技术的发展,还体现在物流系统集成技术的发展。系统集成技术涵盖系统规划、流程设计、设备选型、土建配合、项目管理、系统接口、系统测试、系统搬迁、系统上线诸多方面,是一门涉及多学科、多行业的复杂系统工程。

今天的物流发展,正朝着规模化、自动化的方向发展。超大型的物流配送中心的建设此起彼伏。仅2010年,建设成功和启动开工建设的超过5万平方米的配送中心不下20项。如北京高等教育出版社物流中心、北京物美商业集团物流中心、上海农工商新物流中心、李宁公司荆州物流中心、京东商城亚洲一号物流中心等。大型的自动化物流中心建设,对系统集成技术提出了新的要求。

3.企业的发展方向

未来与立体化仓库应用有关的企业的发展,可以从几个方面进行分析:

(1)专业化的分工将更加明确

随着2010年我国经济规模超过日本,企业对物流的需求将呈现前所未有的新局面。以前制约企业发展的市场需求将不复存在,代之以随着产能提高和利润率进一步下降带来的竞争格局。因此,企业将走向专业化的分工。如专业的堆垛机生产企业,专业的输送机生产企业,专业的系统集成商等。小而全的企业将面临严重的生存危机。

(2)企业的集成度将越来越高

随着专业化分工明确,企业的集成度将越来越高。可以预见的未来是,我国必将有若干企业和系统集成商进入世界前20位。成为自动化物流系统领域的世界竞争者。同时,随着中国市场的进一步扩大,世界各国的集成商其业务的重点将转移到中国。

(3)创新是企业发展的灵魂

要在未来的广阔物流装备市场拥有一席之地,企业的创新是必由之路。依靠价格战赢得暂时的订单将不会长久。与其他行业一样,创新是企业发展的灵魂。只有不断的创新,生产出符合市场需求的产品才能在市场中经久不衰。

4. 行业发展方向

(1)仓储作业管理自动化水平逐步提高

先进的工业化国家,由于工业高度自动化及计算机的广泛应用,生产得到了很大的发展,依靠生产技术的开发来获取利润的速度趋于稳定。过去很少有人注意的物流系统开始受到重视。物流领域的技术继生产和销售后将成为开发的重点。自动化立体仓库作为物流系统的重要组成部分将受到人们的重视。应用计算机和相应的控制装置使自动化立体仓库的作业管理水平获得了较大的提高。随着生产的进一步发展,对物流系统的要求将更加严格。具体说来,就是在要求的时间内,在准确的地点,按准确的顺序与方法,提供准确的品种和数量的物体。要做到这一点,必须继续提高仓储作业的管理自动化水平,充分发挥人、物和控制系统之间的协调作用。

(2)自动化仓库协作化进一步发展

几家企业共同利用仓库设施,共同发货,协作作业,能很好的提高储运效率。这样容易形成集团化仓库。它促进了仓库的联合运输,使车辆利用率增加,并节

省了能源,提高了效率。

(3)仓库作业向柔性化发展

多品种小批量的生产将是今后的发展方向,物流系统如何适应这种生产方式,将会是今后研究的一个重要课题。随着柔性化的普及,自动化立体仓库的仓储作业也将向柔性化发展。国外已经开始出现一批可拆卸的或移动式的仓库结构。它采用组合武结构,可根据储运方式和货物的品种批量进行拼装组建。其造价低,可靠性好,维修保养简单,施工速度快。日本近年来兴建了不少这样的自动化立体仓库。与此同时,仓储设备也开始向柔性化发展。各种模块式结构的机器人、自动装卸车以及货架都相继出现。带拆卸抓手的机器人已在自动化仓库中应用,它可根据送来的不同货物更换抓手,由编好的程序控制它要抓取的货物。仓储作业向柔性化发展,不仅能适应生产的需要,而且能提高物资的周转率,减少库存量。由于具有新的物理外形和更高性能的设备不断地出现,电气控制技术的进步,堆垛机也需要具有更高定位精度,更强的搜索能力和更快的运行速度,从而缩短出入库操作周期,获得更大的生产能力。

(4)人工智能和专家系统也大量运用到自动化仓库系统中

如高容错搬运系统、自诊断专家系统等已出现于部分复杂自动化仓库系统中。智能自动化仓储技术,即人工智能技术发展从自动化技术向更高级的阶段-----智能自动化方向发展。现在,智能自动化仓储技术还处于初级发展阶段。以后仓储技术的智能化将具有广阔的应用前景。

5.结束语

自动化仓库是集多种高科技为一体的行业,是典型的技术密集型、人才密集型的行业,是物流系统中的一个重要部分,对实现企业生产自动化和一个国家的发展有着很大的作用。自动化立体仓库的产生和发展是现代制造业和现代物流业发展的结果,其自动化程度高、容量大,满足现代物流业高速发展的需要,对它的研究已成为现代物流发展的重要内容。在计算机技术,通信技术和信息技术的推动下,信息化已成为自动化立体仓库发展的趋势,各仓库间不再独立,而是能够共享仓储资源,相互协调合作,降低运行成本,使仓库的整体运行效率达到最优成为现代物流系统的重要组成部分。

可以预见,国家今后将制定与推行一系列与国际接轨的自动化立体仓库技术

标准,大力培育与规范立体仓库市场,倡导专用、特种仓库的研究与开发,重视

冷链仓库的研发与应用,推动符合构建节约型社会、循环经济理念、节能减排、绿色环保的立体仓库技术与产品的研发,实现我国自动化立体仓库行业在“十二五”期间的跨越式发展。

Automated Warehouse

1.The superiority of an automated warehouse

Because of the special structure of the automated warehouse, it has the following advantages compared to the traditional warehouse:

1.1Improve space utilization

Early warehouse idea, the basic starting point is to improve space utilization, limited and full of valuable land conservation.In some Western countries, improve space utilization point of view has been more widespread and profound meaning, conservation of land, has been with energy conservation, environmental protection and other areas more link.In some Western countries, improve space utilization point of view has been more widespread and profound meaning, conservation of land, has been with energy conservation, environmental protection and other areas more link.Automated warehouse space utilization and its planning are closely linked. In general, automated warehouse space utilization of its ordinary level library of 2 - 5 times.

1.2Facilitate the formation of advanced logistics systems, improve production management level

Traditional cargo storage warehouse just a place to save the cargo is its only function is a "static storage."Automated warehouse material handling equipment using advanced automation, not only can automatically access the necessary goods in the warehouse, and can be connected with the organic production processes outside the warehouse, and through computer management systems and automated material handling equipment to make the warehouse became production Logistics is an important part.Enterprises purchased parts and production parts made into automated warehouse storage is a part of the whole production, short-term storage at a specified time in order to automatically output to the next process of production, thus forming an automated logistics system, which is a kind of "dynamic storage ", is a clear trend of automated warehouse technology development.It is conducive to the formation of advanced enterprise logistics system, thereby improving the overall management of the enterprise.

1.3Spare parts can be solved piecemeal materials such as complex features

Spare parts and supplies department manages the entire

enterprise piecemeal many various parts, spare parts supplies. The volume of irregular size items, and even different weight varying temperature, humidity, causing the overall storage environment requires complex and diverse physical characteristics of the material status.Address these different physical properties of materials is the difficulty of proper storage and management of spare parts in the automated warehouse material management engineering applications. Elevated library system is one of the most effective means to solve this problem.This is because: the Automated library as the center of the plant logistics system to solve the contradiction between supply and demand of circulation problems and all aspects of production, so that the number of required production volume and production and supply of raw materials and components to achieve an optimal value;Establish a computer network system enables outsourcing of raw materials and parts procurement in a more timely and meet the actual demand;Computer management system established to strengthen the macro-control function, so all aspects of production, production capacity to better meet the actual demand;Establish libraries and semi-finished products to address market demand and supply of temporary inconsistencies, give full play to the

enterprise's production potential.After the automated warehouse, inventory supplies occupy significantly lower amounts than in the past, to save money.

1.4Warehouse automation level can be improved

As a modern automated warehouse logistics facilities, to improve the level of warehouse automation plays an important role, mainly in four areas:

First, the automated warehouse contains not only the underlying automation equipment control and management, and basic data for a specific automated warehouse management system. Reduce labor intensity and improve the efficiency of logistics work.

Second, automated warehouse management and control system is relatively independent of one subsystem can be achieved on the three-dimensional database of all the best jobs out of storage allocation and access controls, and the data for statistical analysis in order to achieve macro-control of the logistics, the maximum limits to drop at the end of the occupation and capital stocks, accelerate cash flow.

Third, automated warehouse in the warehouse for a specific material, cargo space and other basic information management, optimize warehouse storage efficiency, the material in the

library case management and warehouse automation control equipment to achieve automatic access to material warehouse library operations and store operations.

Fourth, the automated warehouse can effectively utilize space. Separate storage of plant height restricted structure, generally not too high. The library implements automated warehouse rack one, able to withstand greater wind loads, its height is higher, can be effective and rational use of space.

2.Technology development

The basic trend of the future automated warehouse technology development as follows:

Upgrading (1) traditional products

Although our country in the past 30 years, through the efforts of several generations, logistics technology and products have made great strides.But generally speaking, there is a single product specifications, technological backwardness, product standards behind the product of large-scale production and low levels of a distinct disadvantage.This aspect will affect the market competitiveness of our logistics automation equipment products, more important is the impact of China's economic development.Therefore, improving the technical content of traditional products, the level of development of

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毕业论文 外文翻译#(精选.)

毕业论文(设计)外文翻译 题目:中国上市公司偏好股权融资:非制度性因素 系部名称:经济管理系专业班级:会计082班 学生姓名:任民学号: 200880444228 指导教师:冯银波教师职称:讲师 年月日

译文: 中国上市公司偏好股权融资:非制度性因素 国际商业管理杂志 2009.10 摘要:本文把重点集中于中国上市公司的融资活动,运用西方融资理论,从非制度性因素方面,如融资成本、企业资产类型和质量、盈利能力、行业因素、股权结构因素、财务管理水平和社会文化,分析了中国上市公司倾向于股权融资的原因,并得出结论,股权融资偏好是上市公司根据中国融资环境的一种合理的选择。最后,针对公司的股权融资偏好提出了一些简明的建议。 关键词:股权融资,非制度性因素,融资成本 一、前言 中国上市公司偏好于股权融资,根据中国证券报的数据显示,1997年上市公司在资本市场的融资金额为95.87亿美元,其中股票融资的比例是72.5%,,在1998年和1999年比例分别为72.6%和72.3%,另一方面,债券融资的比例分别是17.8%,24.9%和25.1%。在这三年,股票融资的比例,在比中国发达的资本市场中却在下跌。以美国为例,当美国企业需要的资金在资本市场上,于股权融资相比他们宁愿选择债券融资。统计数据显示,从1970年到1985年,美日企业债券融资占了境外融资的91.7%,比股权融资高很多。阎达五等发现,大约中国3/4的上市公司偏好于股权融资。许多研究的学者认为,上市公司按以下顺序进行外部融资:第一个是股票基金,第二个是可转换债券,三是短期债务,最后一个是长期负债。许多研究人员通常分析我国上市公司偏好股权是由于我们国家的经济改革所带来的制度性因素。他们认为,上市公司的融资活动违背了西方古典融资理论只是因为那些制度性原因。例如,优序融资理论认为,当企业需要资金时,他们首先应该转向内部资金(折旧和留存收益),然后再进行债权融资,最后的选择是股票融资。在这篇文章中,笔者认为,这是因为具体的金融环境激活了企业的这种偏好,并结合了非制度性因素和西方金融理论,尝试解释股权融资偏好的原因。

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