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1、附件1:外文资料翻译译文拉伸模自动设计系统朗读显示对应的拉丁字符的拼音字典 - unctional%20%20Structure%20%20Skeleton%20%20Structure%20%20Functional%20%20Structure%20%20Skeleton%20%20Structure%20%20Functional%20%20Structure%20%20BH%20Size%20%20Die%20face%20Thickness%20%20Avoid%20Structure%20%20Panel%20Guide%20Seat%20%20Rib%20%20Lower%20D
2、ie%20Size%20%20Die%20face%20Thickness%20%20Avoid%20Structure%20%20Rib%20%20Upper%20Die%20Size%20%20Die%20face%20Thickness%20%20Rib%20%20Guide%20%20Heel%20Guide%20%20Guide%20Post%20Seat%20%20Cushion%20Pin%20Seat%20%20Hook%20%20Bolt%20Type%20%20Cast-in%20Type%20%20Stopper%20Seat%20%20Circle%20Type%20%
3、20Square%20Type%20%20Safety%20Area%20%20Guide%20%20Heel%20Guide%20%20Guide%20Post%20Seat%20%20Cushion%20Pin%20Hole%20%20U-groove%20%20Hook%20%20Bolt%20Type%20%20Cast-in%20Type%20%20Auxiliary%20Plate%20%20Triangle%20Rib%20%20Stopper%20Seat%20%20Circle%20Type%20%20Square%20Type%20%20Safety%20Area%20%2
4、0Key-groove%20%20Guide%20%20Heel%20Guide%20%20Guide%20Post%20Seat%20%20Auxiliary%20Plate%20%20U-groove%20%20Triangle%20Rib%20%20Hook%20%20Bolt%20Type%20%20Cast-in%20Type%20%20Stopper%20Seat%20%20Circle%20Type%20%20Square%20Type%20%20Safety%20Area%20%20Fig.%206.Organization%20diagram%20of%20supported
5、%20features%20%201590%20B.-T%20Lin,%20S.-H%20Hsu%20/%20Expert%20Systems%20with%20Applications%2034%20(2008)%2015861598%20%20%20Each%20hook%20for%20upper%20dies%20and%20blank%20holders%20should%20support%20a%20minimum%2055%25%20weight%20of%20the%20component.%20Each%20of%20the%20three%20hooks%20of%20t
6、he%20lower%20dies%20should%20support%20a%20minimum%20total%20weight%20of%20the%20die.%20%20Fig.%203%20shows%20its%20design%20specifications.%20%203.%20System%20components%20%20After%20receiving%20all%20required%20design%20information%20and%20appropriated%20types%20of%20subcomponents%20from%20the%20u
7、ser,%20this%20system%20is%20able%20to%20finish%20the%20design%20of%20main%20components%20of%20the%20die%20based%20on%20design%20guidelines%20and%20specifications.%20%20Fig.%204%20illustrates%20the%20architecture%20of%20our%20system,%20which%20includes%20a%20design%20knowledge%20base,%20a%20design%20
8、database,%20a%20%20CAD%20software,%20an%20inference%20engine,%20and%20user%20interfaces.%20%20Each%20of%20the%20components%20is%20detailed%20below:%20%203.1.%20The%20user%20interface%20%20The%20user%20interface%20offers%20users%20a%20way%20to%20interact%20with%20the%20system%20effectively%20and%20ef
9、ficiently.%20The%20user%20interface%20of%20our%20system%20allows%20users%20to%20input%20both%20alphanumeric%20and%20graphic%20information.%20This%20interface%20also%20shows%20the%20final%20design%20to%20users.%20The%20interface%20for%20inputting%20alphanumeric%20information%20is%20used%20to%20select
10、%20the%20types%20of%20press%20machines,%20guide%20mechanisms,%20hooks,%20and%20stopping%20seats,%20while%20the%20interface%20for%20inputting%20graphic%20information%20is%20used%20to%20change%20die%20faces,%20punch%20open%20lines,%20and%20blank%20lines.%20%203.2.%20The%20inference%20engine%20%20The%2
11、0inference%20engine%20is%20the%20core%20of%20our%20system.%20It%20is%20responsible%20for%20generating%20the%20solid%20structure%20design%20of%20%20the%20main%20components%20based%20on%20users%20input.%20The%20inference%20engine%20consists%20of%20four%20units:%20a%20model%20generator,%20a%20subcompon
12、ent%20selector,%20a%20shape%20calculator,%20and%20an%20inference%20coordinator.%20Instead%20of%20being%20input%20by%20the%20user%20via%20an%20interactive%20way,%20the%20parameters%20of%20solid%20models%20are%20automatically%20calculated%20by%20the%20design%20system.%20Therefore,%20solid%20models%20a
13、re%20generated%20by%20the%203D%20CAD%20system%20automatically.%20%20In%20case%20any%20error%20occurs%20during%20the%20modeling%20process,%20the%20system%20will%20send%20an%20error%20message%20to%20the%20user.%20%20%20The%20subcomponent%20selector%20is%20used%20to%20determine%20the%20quantity,%20posi
14、tion,%20and%20size%20of%20a%20subcomponent%20based%20on%20design%20constraints%20and%20formulas%20derived%20from%20the%20initial%20design%20information.%20The%20subcomponent%20selector%20used%20in%20our%20system%20has%20227%20constraints%20and%20formulas.%20%20%20The%20shape%20calculator%20is%20resp
15、onsible%20for%20determining%20the%20shape%20of%20a%20subcomponent.%20After%20the%20type%20and%20size%20(independent%20parameters)%20of%20the%20subcomponent%20are%20determined,%20the%20shape%20calculator%20is%20able%20to%20out%20put%20the%20shape%20of%20the%20subcomponent%20based%20on%20design%20tabl
16、es.%20%20The%20shape%20calculator%20used%20in%20our%20system%20has%20328%20types%20of%20shapes.%20%20&langpair=en|zh-CN 查看字典详细内容朗读显示对应的拉丁字符的拼音字典 - wledge%20base%20and%20database%20this%20system%20is%20able%20to%20output%20designs%20of%20the%20main%20components%20of%20a%20drawing%20die,%20such%20as%2
17、0upper%20dies,%20lower%20dies%20and%20blank%20holders,%20%20upon%20users%20input%20of%20design%20information%20of%20blank%20lines,%20die%20faces,%20punch%20open%20lines,%20press%20data,%20and%20types%20of%20subcomponents%20such%20as%20hooks,%20guides,%20and%20stopper%20seats.%20This%20die%20design%2
18、0system%20is%20built%20on%20top%20of%20CATIA%20V5,%20and%20makes%20use%20of%20its%20built-in%20modules,%20including%20%20Part%20Design%20Automation%20and%20Scripting%20and%20Knowledge%20Advisor%20Our%20system%20also%20includes%20an%20inference%20engine,%20and%20user%20interfaces.%20We%20use%20drawin
19、g%20dies%20for%20trunk%20lid%20outer%20panels%20and%20engine%20hood%20outer%20panels%20as%20concrete%20examples%20to%20showcase%20the%20power%20of%20our%20system.%20Experimental%20results%20show%20that%20our%20system%20can%20improve%20the%20design%20quality%20and%20reduce%20the%20design%20time%20and
20、%20cost._%202007%20Elsevier%20Ltd.%20All%20rights%20reserved.%20%20Keywords:%20Drawing%20dies;%20Design%20system;%20CAD;%20Knowledge%20base;%20parametric%20modeling%20%201.%20Introduction%20%20Press%20parts,%20such%20as%20frames,%20bodies,%20and%20doors,%20are%20widely%20used%20in%20the%20automotive
21、%20industry.%20In%20order%20for%20a%20manufacturer%20%20to%20survive%20in%20todays%20competitive%20market,%20the%20development%20process%20of%20a%20vehicle%20needs%20to%20be%20carried%20out%20in%20an%20efficient%20and%20effective%20way%20in%20order%20to%20meet%20customersexpectation.%20Die%20design%
22、20is%20part%20of%20the%20critical%20path%20of%20the%20entire%20development%20process.%20There%20are%20three%20categories%20of%20stamping%20dies,%20based%20on%20their%20functionalities:%20drawing%20dies,%20trimming%20dies,%20and%20bending%20dies.%20Since%20most%20stamping%20dies%20for%20automotive%20
23、sheet%20metals%20are%20big%20and%20complex,%20the%20stamping%20die%20design%20process%20is%20very%20time-consuming.%20%20Recently,%20as%20a%20result%20of%20the%20fast%20development%20of%20computer%20technology%20and%20of%203D%20CAD%20software,%203D%20CAD%20software%20has%20been%20widely%20used%20in%
24、20designing%20drawing%20dies.%20A%20solid%20model%20offers%20users%20an%20intuitive%20and%20concrete%20view%20of%20the%20die%20in%20design,%20which%20fundamentally%20reduced%20design%20time.%20However,%20most%203D%20CAD%20software%20only%20provides%20users%20with%20geometric%20modeling%20functions%2
25、0for%20constructing%20a%20solid%20model,%20but%20fails%20to%20offer%20a%20powerful%20design%20knowledge%20base,%20which%20is%20essential%20to%20assist%20engineers%20in%20accomplishing%20the%20design%20task.%20%20As%20a%20result,%20the%20developments%20of%20automated,%20knowledge%20base%20and%20intel
26、ligent%20design%20systems%20are%20studied%20by%20researchers%20from%20around%20the%20world.%20Myung%20and%20Han%20(2001)%20developed%20an%20expert%20system%20based%20on%20a%20configuration%20design%20method.%20This%20system%20allows%20users%20to%20design%20mechanical%20products%20in%20a%203D%20envir
27、onment.%20Roh%20and%20Lee%20(2006)%20proposed%20a%20hull%20structural%20modeling%20system%20for%20ship%20design,%20which%20was%20developed%20using%20C+%20and%20built%20on%20top%20of%203D%20CAD%20software.%20Lee,%20Hsu,%20and%20Su%20(1999)%20developed%20a%20parametric%20computer-aided%20die%20design%
28、20system%20for%20cold%20forging%20using%20Auto-LISP.%20In%20order%20to%20make%20the%20modeling%20process%20more%20efficient,%20Kong%20et%20al.%20(2003)%20developed%20a%20Windows%20native%203D%20plastic%20injection%20mold%20design%20system%20based%20on%20Solid%20Works%20using%20Visual%20C+.%20Chu,%20
29、Song,%20and%20Luo%20(2006)%20developed%20a%20Computer%20aided%20parametric%20design%20system%20for%203D%20tire%20mold%20production%20in%20CATIA%20using%20CAA.%20%20In%20the%20stamping%20die%20design%20area,%20Cheok%20and%20Nee%20(1998)%20developed%20a%20knowledge%20based%20strip%20layout%20design%20
30、system%20in%20AutoCAD.%20Taking%20advantage%20of%20neural%20network%20and%20CAD%20%200957-4174/$%20-%20see%20front%20matter%20_%202007%20Elsevier%20Ltd.%20All%20rights%20reserved.%20%20doi:10.1016/j.eswa.2007.01.024%20%20*%20Corresponding%20author.%20Tel.:%20+886%2076%206011000;%20fax:%20+886%207%20
31、6011066.%20%20E-mail%20addresses:%20bt_.tw%20(B.-T.%20Lin),%20u9314805%20%20&langpair=en|zh-CN 查看字典详细内容知识基础包括设计过程和设计准则。设计过程为每一个子组件进行大体的设计和建模流程。设计准则用来确定每个子组件的数量,位置和大小。在设计知识基础里,模具系统地分为组件和子组件;33个子类别的42种不同类型列在我们的系统里。对各种各样子组件之间关系的理解对于为每个子组件获取一个适当的设计流程是至关重要的。为子组件的详细建模过程以及几何操作在这些程序中的使用在知识
32、基础里是有效的。此外,设计指南和三维图形随着设计参数以逐项文字和公式的形式存储为电子书,用来培训,调试以及参考。设计数据库提供子组件和冲压机的规格。子组件规格指定每个子组件的大小,而冲压机指定上下模板的大小,模具高度的最大值和最小值,最大模具宽度,以及T槽和垫脚孔和垫脚杆的位置和大小。设计数据库有44种子组件设计规格,分为33种类别。各组件的设计规格以二维图表的形式表达。另外每个图表跟随一个用来概述相关形状参数和标准尺寸的表格。设计数据库提供四套以二维图表表达的印刷机规格。为了便于检修,所有设计数据库的信息都以电子书的形式存储起来。我们的系统是在Windows XP操作系统基于CATIA V5
33、计算机辅助设计软件开发的。这个系统是在个人计算机上使用而设计的,并且是在使用CATIA软件建立的单元下开发的。部件设计的模数对于构造三维模型程序的控制和执行是可靠的。因此这个单元是用来构建推断坐标的。这个知识顾问单元允许使用者把相关的知识嵌入设计之中,从而可以提高设计工程师的效率。子组件选择器利用公式编辑和规则编辑功能能,而状态计算器利用设计表格功能。自动化技术和脚本单元为计算机辅助设计软件提供一个可以用户定制的界面。模型发生器利用VBA为发生实体模型编写程序。用户界面同样可以利用VBA来构建包括文字数字和图形的输入界面。该系统是建立在CATIA的CAD系统之上并且利用CATIA的各种内置的模
34、块。一旦用户输入设计信息,我们的系统就能以高效的,灵活的方式自动生成图纸模具的主要组成部分的实体模型设计。图5显示了建模过程。建模过程的每个步骤在下面几个部分会详细介绍。汽车行业的拉伸模是非常大的并具有非常复杂的结构。并且每个子组件有它自己拥有的功能。因此,在开发设计系统之前,我们收集了各种汽车金属薄板的拉伸模的结构,并且分析它们的架构和功能。图6显示了一个基于它们功能的典型的拉伸模子部件的分类。参数化模具设计系统把一个模具的常变化的尺寸规格看作是参数,并且用赋给各个参数适当的值来产生最后的设计,而这些参数是基于采自设计方针和详细说明书的设计公式,规定参数以及表格。但是某些数据和子组件,就像冲
35、压机,挂钩,导架,以及制动器部位,因为它们的多样的结构,不能仅仅依靠改变它们的设计参数来设计。因此,我们为拥有同样功能的所有子组件提前建立一个样本模具的界面和结构,这些功能是基于设计方针和详细说明书。设计过程标准化的目的是为了给设计模具提供一个有规律的方式。因为CAD系统拥有它自己的模型建立程序,设计子组件的规格和位置还不能确定,直到某些子组件的规格和位置已经确定不变。一个标准的设计流程,就像图7显示的那样,是基于各个子组件的设计方针和详细说明书以及这些子组件的因果关系产生的。这个标准的程序是用来引导样本模具的主要组成部分的设计,例如它们的结构和最初的规格,以及在一个主要组成部分上的最初规格和
36、位置。4一旦获得了标准的设计程序,一个基于设计程序的特征层次图和样本模具就建立了,就像图8和9显示的那样。一个典型模具的外貌是由几千个表面组成的。为了确保样本模具的稳定性,就用简单模具的表面来构成样本模具。由于拉伸模的不同子组件拥有同样的功能,所有同样功能的合适子组件结构必须在建立样本模具的时候预先建立。当建立一个模具的实体模型时,仅仅被选的子组件应该正式建成了。所有没有被选中的子组件应该停止使用。图8 拉伸模的层树图图9 样板模具当构建样本模具的时候,设计工程师应该利用所有可以利用的参数和预先设定的规格。参数的数量对设计灵活性有着直接的影响。在大多数情况下,在设计过程中减少参数的数量这使得程
37、序更加简洁。因此,对于整个设计过程,适当数量的参数是至关重要的。所有变化的尺寸被视为参数,参数的值可以根据设计要求而改变。由于尺寸参数的值不能非正的,所有可能的情况应该加以考虑以避免任何潜在的问题,尤其是各种子组件之间有因果关系。在我们的自动设计系统有几百个参数,它要求一个系统地命名方案,这样参数可以很好的被管理以便编码和调试。在我们系统中使用的参数名称由两部分组成:部分属于该参数的名称,部分是维度的名称。基于参数的功能,它们可以分为形状参数和位置参数。形状参数可以进一步划分为独立参数和相关的参数。独立参数仅仅需要满足设计方针,而相关的参数是由双方的设计规范和任何有关独立的参数决定。以图3所示
38、的螺栓型钩作为例子,钩子的螺栓直径,d,是一个独立参数,而其他量例如Y,X,r,t,l和R,是相关的参数。一旦参数已经确定,各参数之间的关系需要基于设计准则和详细说明书的制定。这些关系进一步转化成为方案。方案分成三个层次用来方便设计过程。以螺栓型钩作为例子,第一层的目的是选择基于设计准则的子组件。这一层方案利用两个CATIA V5内置的规则编辑器和公式编辑器模块,来把设计准则分别转化成为约束和公式,用来确定子组件的数量,位置和规格,如图10所示的a和b。这个方案的第二个层次是为计算模具的形状参数的值负责。这个层次利用CATIA V5内置的模块,用来构建基于各子组件设计规范的模具的设计表格。因此
39、,方案的这个层次可以使用设计表格和相关的独立参数来确定相关的参数,如图10c所示。这个方案的第三个层次是用来构造模型。用VBA写的,方案的这个层次用来提供一个基于上述两个层次的类型和规格的子组件建模程序,如图10d所示。图10 方案设计用户界面允许用户在一个直观的和互动的的方式下完成设计过程。在我们系统中使用的用户界面可以分为两种类别。第一类是用于输入图形信息,如空行,模具外形,和POLs。这种界面使用的是替换,是CATIA V5的一个内置的功能。以下是更换样品图像信息的程序。首先,启动自动设计系统,并把需要的图形信息加载到设计环境中。点击样品图形信息的层次的树形关系,如图11b所示。选择模具
40、所需要的图形信息,然后单击确定。当它在更新的时候,模具的颜色变为红色,如图11c所示。 图11 图表数据替换程序的界面 (a)加载一个图标数据(b)激活替换窗口(c)更新准备第二类是用于输入字母数字信息,例如各种类型的新闻资料,引导机制,和钩以及行程终点,如图12所示。实施使用VBA,有一个下拉菜单可以允许用户为模具选择合适的子组件的类型。设计工程师只需要所需要的冲压机和子组件的类型,并单击确定,系统能够自动完成设计。图12 字母数字数据界面我们使用一个行李箱盖外板的拉丝模的设计作为一个具体的例子来展现我们系统地能力。当系统启动的时候,样板模具的一个标准的结构图就被显示出来,如图13a所示。在
41、接收到用户的图形信息,我们的系统使用CATIA内置的替换功能,来替换样品模具的使用层树的图形信息,如图13b所示。然后,用户开始输入字母数字信息,如各样的冲压机,引导机制,钩子,以及行程终点,如图13c所示。当用户点击确定,我们的系统基于设计流程准则和规范的设计。拉伸模的最终设计如图13d所示。图14显示了两种不同的拉伸模的比较,一个是行李箱盖外板的拉伸模另一个是发动机罩外板的拉伸模,以显示我们系统可处理广泛的设计。图13 提案制的设计流程图14 模具结构的比较这篇文章为拉伸模介绍了一个自动化设计系统,这个系统是建立在CATIA CAD软件之上的。当在设计工程师接受初始设计信息的时候,例如空行
42、,模具外形,POLs,和新闻资料以及各种钩子,导向机构,终点位置,系统能够自动产生模具主要组成部分的最终设计,例如上模,下模,和压边圈。设计公式和模型工序的几何操作被系统使用CATIA V5内置的单元来生成,例如Part Design, Autom and Scripting, and Knowledge Advisor。实验结果表明我们的系统在设计行李箱盖板和发动机罩板拉伸模的时候,已经成功地把设计时间从几个工作日减少了不到一个小时,这样节省了大量的程序调试时间和成本,并且获得了很高的生产效率和设计的机动性。在未来,我们的系统里可以引进一个最优化单元,这样可以使它输出最优的设计。而且,由于我
43、们的系统现在只能处理拉伸模,我们将扩展我们的系统能够设计冲模和压弯模。参考文献Cheok, B. T., & Nee, A. Y. C. (1998). Trends and developments in the automation of design and manufacture of tools for metal stampings. Journal of Materials Processin Technolog ,75,240252.Chu, C. H., Song, M. C., & Luo, C. S. (2006). Computer aided parametric d
44、esign for 3D tire mold production. Computers in Industry, 57, 1125.Ismail, H. S., Chen, S. T., & Hon, K. K. B. (1996). Feature-based design of progressive press tools. International Journal of Machine Tools and Manufacture, 36, 367378.Kong, L., Fuh, J. Y. H., Lee, K. S., Liu, X. L., Ling, L. S., Zha
45、ng, Y. F.,et al. (2003). A windows-native 3D plastic injection mold design system. Journal of Materials Processing Technology, 139, 8189.Myung, S., & Han, S. (2001). Knowledge-based parametric design of mechanical products based on configuration design method. Expert Systems with Applications, 21, 9
46、9107.Pilani, R., Narasiman, K., Maiti, S. K., Singh, U. P., & Date, P. P. (2004).A hybrid intelligent system approach for die design in sheet metal forming. International Journal of Advanced Manufacturing Technology,16, 370375.Roh, M. I., & Lee, K. Y. (2006). An initial hull structural modeling syst
47、em for computer-aided process planning in shipbuilding. Advances in Engineering Software, 37, 457476.Singh, R., & Sekhou, G. S. (1999). An expert system for optional selection of a press for a sheet metal operation. Journal of Materials Processing Technology, 86, 131138.Tisza, M. (1995). Expert syst
48、em for metal forming. Journal of Materials Processing Technology, 53, 423432.Wick, C., Benedict, J. T., & Veilleux, R. F. (1984). Tool and manufacturing engineer shandbook (Vol. 2). Dearborn, Michigan, USA: Forming, Society of Manufacturing Engineers. 附件2:外文资料原文下面是赠送的合同范本,不需要的可以编辑删除!教育机构劳动合同范本 为大家整理
49、提供,希望对大家有一定帮助。 一、_ 培训学校聘请_ 籍_ (外文姓名)_ (中文姓名)先生/女士/小姐为_ 语教师,双方本着友好合作精神,自愿签订本合同并保证认真履行合同中约定的各项义务。 二、合同期自_ 年_ 月_ 日起_ 年_ 月_ 日止。 三、受聘方的工作任务(另附件1 ) 四、受聘方的薪金按小时计,全部以人民币支付。 五、社会保险和福利: 1.聘方向受聘方提供意外保险。(另附2 ) 2.每年聘方向受聘期满的教师提供一张_ 至_ 的来回机票(金额不超过人民币_ 元整)或教师凭机票报销_ 元人民币。 六、聘方的义务: 1.向受聘方介绍中国有关法律、法规和聘方有关工作制度以及有关外国专家的管理规定。 2.对受聘方提供必要的工作条件。 3.对受聘方的工作进行指导、检查和评估。 4.按时支付受聘方的报酬。 七、受聘方的义务: 1.遵守中国的法律、法规,不干预中国的内部事务。 2.遵守聘方的工作制度和有关外国专家的管理规定,接受聘方的工作安排、业务指导、检查和评估。未经聘方同意,不得兼任与聘方无关的其他劳务。 3.按期完成工作任务,保证工作质量。 4.遵守中国的宗教政策,不从事与专家身份不符的活动。 5.遵守中国人民的道德规范和风俗习惯。 八、合同的变更、解除和终止: 1.双方应信守合同,未经双方一致同意,任何一方不得擅自更改、解除和终止合同。 2.经当事人双
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