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The information integrated pattern based on PDM/PLM in the course ofmanufacture is put forward. Under the constraints of building CAPP platform, thearchitecture of CAPP platform is established. The models of decision making andfunction for process planning are given. Then the development means of CAPP basedSmarTeam are extracted.3. The structure of modular product life cycle is established. Toward the divisionand planning of the General Modules oriented product family, theCAD/CAPP integrated model of flexible module based on feature and CAD/CAPPmapping model based on process planning match board are set up. The keytechnologies of Solidworks/SmarTeam/CAPP integration are studies.4. From the point of view of process match board and step match board, theprocess of creating to process planning match board is studied. As an example, themachining process planning of up beam of hydraulic press machines is used tointroduce the establishment of process planning match board by means of inferencebased on expert knowledge. The organize model about the process planning matchboard oriented product family is brought forward.5. The multi-decision methods of CAPP system based on analytic hierarchy aregiven.. On the basis of uniform data model, the sub-machining process planning ofpart is auto-created by means of analytic hierarchy, The step decision methods basedon AHP is put forward.6. For the design/manufacture information in the course of product life cycle, thetree structure based on Object-Oriented and static model based UML are founded. Themethod of establishing design/manufacture information management system isbrought forward. The commercial PLM software—SmarTeam is regarded asdevelopment platform, on basis of which, the design/manufacture informationmanagement system is built, and the multi-view mapping technique ofdesign/manufacture information model is studies.7. A computer-aided CAPP platform based on PDM/PLM is founded, and itsstructure, function, work flow is illustrated. Some example of the system areintroduced.
阐述课题提出的目的和意义,明确了本文研究的主要内容。2、提出基于PDM/PLM的制造过程信息化集成模式;在平台式CAPP系统的设计约束模型基础上,构建了平台式CAPP系统的体系结构;并给出工艺决策模型和功能模型;最后提出基于SmarTeam的CAPP开发模式和实现策略。3、建立模块化产品生命周期模型的组织结构;针对面向产品族的广义模块的划分和规划方法,建立基于特征的柔性模块CAD/CAPP集成模型及基于工艺模板的CAD/CAPP映射模型;研究Solidworks/SmarTeam/CAPP集成的关键技术。4、从工序模板和工步模板的角度研究了工艺模板的创建过程;以液压机上梁模块机加工为例,采用基于专家知识的推理技术实现了工艺模板的创成;提出了面向产品族的工艺模板分层结构树的组织模式。5、提出基于分层规划的多模式工艺决策流程;在统一数据模型的基础上,从特征层和零件层分层规划,实现了零件加工子工艺的自动创成;提出基于AHP的工步排序决策方法。6、针对产品生命周期中的设计/制造信息,建立了面向对象的类树结构和基于UML的静态结构模型;提出基于PDM/PLM软件的设计/制造信息管理系统的构建方法;以商品化PLM软件SmarTeam作为开发平台,开发了基于SmarTeam的设计/制造信息管理原型系统;研究设计/制造信息模型多视图映射机制。7、开发了基于PDM/PLM的平台式CAPP原型系统,构建了系统的功能模型,并对系统的主要功能进行说明,给出系统的运行实例。
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This article consists of four parts: In the first part of thesis introduced Heisenberg's early years of life and the creation of Matrix mechanics, expounded Münich、G?ttingen,Copenhagen, three places different academic atmosphere which produce to Heisenberg's institute of physics, and revealed how to set up Matrix mechanics by mathematics method; The second part introduce Schr?dinger's university life, the research results, and the establishment of Wave mechanics. The different academic atmosphere of Vienna and Zürich have the difference influence which brings to Schr?dinger's research work, how to establishment the Schr?dinger equation based on Hamilton equation of classical mechanics, and elaborated the physical controversy caused by the equivalent.; The third part analyzed two mechanics different approaches in which the way to propose the question and solve the question; The last part recommend the different philosophy interpretations, Schr?dinger's interpretation onΨfunction, the statistical interpretation of Wave mechanics, uncertainty principle, and which caused this free discussion of quantum mechanics.
文章共分为四部分:第一部分介绍了海森伯的早年生活及其创立矩阵力学的过程,阐明了慕尼黑、哥廷根、哥本哈根三地不同的学术氛围对海森伯的物理研究所产生的不同作用,并揭示了海森伯如何用数学方法建立矩阵力学方程的过程;第二部分介绍了薛定谔的大学生活、研究成果,以及波动力学的创立过程,说明了维也纳和苏黎世不同的学术气氛给薛定谔的研究工作带来的不同影响,解释了薛定谔以经典哈密顿方程为基础建立薛定谔方程的过程,并阐述了等价性所引起的物理争论;第三部分分析了两种力学的思想进路在提出问题、解决问题上的不同;最后一部分介绍了对两种力学形式不同的哲学诠释,薛定谔对Ψ函数的诠释、波函数的统计解释和测不准原理,以及由此引起的量子力学的大讨论。
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If a fuzzy random event is described by the mapping on the measurable space,its meas- ure value can be calculated by the basic formulations which have been set up.
若一个随机模糊事件由定义在可测空间上的映射刻划,则可把已建立的基本公式用于求该事件发生的测度值。
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Specifically, by analyzing a set of metazoan species we observed a striking negative correlation of genomically encoded tyrosine content with biological complexity (as measured by the number of cell types in each organism).
尤其是,通过分析一系列多细胞物种,我们发现一个显著的阴性调节关系,即生物的复杂体系中酪氨酸的遗传性编码(通过检测每个物种中细胞类型的数目)。
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A model of temperature field in surface layers during sliding was set up based on the law of heat conduction. And, a computer simulation for thermometric data which were real-time recorded by a thermal video system was carried out by using a mini-computer according to the model. There was an ideal fit between the measured data and the calculated curve.
在热传导方程的基础上建立了摩擦磨损表面层的温度场模型,并用该模型在微机上对红外热象测温结果进行了计算机模拟,测量数据与计算曲线拟合理想。
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Firstly, they had recognized the relationship of the unity of opposites by monarch-subject; Secondly, they had to made a choice between morality and monarchial power, which was to restricted monarchial power by morality; Thirdly,"If non-being turns into being, being becomes non-being", which could set up acoustical resonances in pre-Qin scholars'eyes; Fourthly, the great majority of pre-Qin scholars were firmly convinced heroism which national development depended on morality of monarch-subject.
第一,君臣间是对立还是统一的探讨,主要是针对君臣利害关系问题;第二,君臣在面对道义与权势两难中做出的抉择,君臣是践行君道、臣道的组成部分;第三,无为与有为中所产生的共鸣,主要是侧重君臣在行政管理方面的职权分配思想;第四,主要是如何对君臣角色品分、评价的论辩,是期许典范之治,还是回归理性选择,改变"重人"的传统。
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The first one is capital barrier, which means a large amount of initial capital for the perfect monopolizer. This prevents the common enterprise from entrance. The second is the technical barrier, i.e. the monopolizer is in control of certain technology and knack while other enterprises not, and then the market naturally become a monopoly market. Scale economy is the most studied technical barrier. The third one is law barrier, i.e. some exclusive patent rights are protected by the law. For example, patent and copyright are the monopolizations protected by the law. The fourth one is tactic barrier, even without any of the above mentioned barriers; it can also set up barriers through other ways, such as huge amount of advertisement investment.
首先是资本壁垒,即完全垄断企业的起始资本量很大,因此一般的企业难以进入;其次是技术性壁垒,即垄断者掌握了某种生产技术和诀窍,其他企业则没有,这个市场也就自然成了垄断市场,规模经济是一种被研究得最多的技术性壁垒;第三是法律壁垒,有些独家经营的特权是由法律所规定并受到法律保护的,专利和版权就是法律特许的垄断;第四是策略性壁垒,企业即使没有上述三种壁垒,也可以通过其他方式高筑壁垒,例如巨额广告投入。
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T〓, ΔT〓,〓 and ξ are all influenced by the flow pattern of molten electrolyte and metal and by temperature gradient. 6. A set of software characterized with typical friendly Windows GUI has been successfully developed under Borland C++ OWL IDE. It has a hierarchical completely mouse-driven menu system.
根据NaF-AlF〓体系性质与结晶热力学和动力学原理,首次提出槽帮结壳在冷凝形成和熔化消失过程中分别存在一"过冷度":ΔT〓,〓(5)"过热度":ΔT〓,〓(6)新结壳固化时间:〓和理论研究和实际生产所指槽膛内形之间存在的"过渡层",厚度为ξ。
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By Simon Mullock 31/05/2009 Liverpool owners Tom Hicks and George Gillett are set to issue a statement of intent about their long-term commitment to the club by landing a 350million refinancing deal.
利物浦老板希克斯和吉列准备发表一份声明,为实现自己对俱乐部的长期承诺,他们准备再融资35000万。
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A set of graduated rods formerly used to do multiplication and division by a method invented by John Napier.
纳皮尔发明的以前用来进行乘除运算的一系列棒。
- 相关中文对照歌词
- Set By Example
- 推荐网络例句
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The split between the two groups can hardly be papered over.
这两个团体间的分歧难以掩饰。
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This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.
这种做法不仅鼓励了更多的反应,而且减少跟风的可能性。
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The new PS20 solar power tower collected sunlight through mirrors known as "heliostats" to produce steam that is converted into electricity by a turbine in Sanlucar la Mayor, Spain, Wednesday.
聚光:照片上是建在西班牙桑路卡拉马尤城的一座新型PS20塔式太阳能电站。被称为&日光反射装置&的镜子将太阳光反射到主塔,然后用聚集的热量产生蒸汽进而通过涡轮机转化为电力