毕业设计-齿轮油泵的生产管理系统设计
毕业设计-齿轮油泵的生产管理系统设计,毕业设计,齿轮,油泵,生产管理,系统,设计
毕 业 设 计 ( 论 文 )题目: 机械零件的管理系统设计 齿轮油泵的生产管理系统设计 信 机 系 机 械 工 程 及 其 自 动 化 专 业学 号:学生姓名:指导教师:本科毕业设计(论文)诚 信 承 诺 书本人郑重声明:所呈交的毕业设计(论文) 齿轮油泵的生产管理系统 是本人在导师的指导下独立进行研究所取得的成果,除了在毕业设计(论文)中特别加以标注引用、表示致谢的内容外,本毕业设计(论文)不包含任何其他个人、集体已发表或撰写的成果作品。班 级:学 号:作者姓名:信 机 系 机 械 工 程 及 自 动 化 专 业毕 业 设 计 论 文 任 务 书一、题目及专题:、题目 齿轮油泵生产的零件管理系统 、专题 二、课题来源及选题依据伴随着我国工业的迅速发展,尤其是各大工厂的迅速崛起以及国内制造业的蒸蒸日上。同时,随着中小型制造公司的越来越多,竞争的愈来愈激烈。各大企业为了在竞争日趋激烈的市场获得最大的利润,纷纷提高各自工厂的生产效率,为了使工厂效益最大化,也就是精益生产在生产方面的体现,因此,如何在竞争如此激烈的市场下站稳脚跟,甚至扩大盈利是各大企业必须面临的问题!如何利用现代化先进的管理手段,提高公司的管理水平,已经成为制造业发展的当务之急!面对信息时代的机遇和挑战,利用科技手段提高企业的生产效率以及管理成效无疑是首选的方案,虽然计算机管理并不是制造业管理走向成功的唯一元素,但它可以最大限度的发挥准确,快捷,高效等作用,对公司的协调管理提供强有力的支持,尤其在生产方面,我们的工厂主管以及管理人员可以方便快捷的获知工厂的生产状况,然后做出必要的生产调整,也就是将生产信息化,效率更高,前景更广阔! 三、本设计(论文或其他)应达到的要求:1调查研究、查阅文献和搜集资料。 2阅读和翻译与研究内容有关的外文资料(外文翻译不能少于 2 万印刷字符,约合 5000 汉字) 。3撰写开题报告或文献综述,确定设计方案或研究方案。 4掌握 visual studio 2005 等可视化编程工具。 I5总体设计方案 6. 详细设计方法(包括控制流程图、功能模块、数据流图、程序框图、开发关键技术等)或研究方法。7. 设计或有关计算的源程序(或论点的证明或验证) 。8. 撰写毕业设计(论文) 。四、接受任务学生:五、开始及完成日期:自 2012 年 10 月 25 日 至 2013 年 5 月 20 日六、设计(论文)指导(或顾问):指导教师 签名签名签名 教 研 室 主 任学科组组长研究所所长 签名系主任 签名2012 年 11 月 14 日 英文原文Introducing C#C#-pronounced “See Sharp”-is a programming language designed for Microsofts .NET platform. Since its first release in 2002, C# has found many roles. It is widely used on the server side of websites, and also on both the client and server in line-of-business Windows desktop applications. You can write smartphone user interfaces and Xbox 360 games in C#. More recently, Microsofts Silverlight platform has made C# an option for writing Rich Internet Applications that run in a web browser. But what kind of language is C#? To understand a language well enough to use it effectively, its not enough to focus purely on the details and mechanisms, although well be spending plenty of time on those in this book. It is equally important to understand the thinking behind the details. So in this chapter, well look at what problems C# was built to solve. Then well explore the style of the language, through aspects that distinguish it from other languages. And well finish the chapter with a look at the latest step in the evolution of C#, its fourth version.Why C#? Why .NET?Programming languages exist to help developers be more productive. Many successful languages simplify or automate tedious tasks that previously had to be done by hand. Some offer new techniques that allow old problems to be tackled more effectively, or on a larger scale than before. How much difference C# can make to you will depend on your programming background, of course, so its worth considering what sorts of people the language designers had in mind when they created C#.C# is aimed at developers working on the Windows platform, and its syntax is instantly familiar to users of C or C+, or other languages that draw from the same tradition, such as JavaScript and Java. Fundamental language elements such as statements, expressions, function declarations, and flow control are modeled as closely as possible on their equivalents in C family languages.A familiar syntax is not enough of a reason to pick a language, of course, so C# offers productivity-enhancing features not found in some of its predecessors. Garbage collection frees developers from the tyranny of common memory management problems such as memory leaks and circular references. Verifiable type safety of compiled code rules out a wide range of bugs and potential security flaws. While C or C+ Windows developers may not be accustomed to those features, they will seem old hat to Java veterans, but Java has nothing to compete with the “LINQ” features C# offers for working with collections of information, whether in object models, XML documents, or databases. Integrating code from external components is remarkably painless, even those written in other languages. C# also incorporates support for functional programming, a powerful feature previously most commonly seen in academic languages.Many of the most useful features available to C# developers come from the .NET Framework, which provides the runtime environment and libraries for C#, and all other .NET languages, such as VB.NET. C# was designed for .NET, and one of the main benefits of its close relationship with the .NET Framework is that working with framework features such as the class library feels very natural.The .NET Framework Class LibraryWorking in C# means more than using just the language-the classes offered by the .NET Framework are an extremely important part of the C# developers everyday experience (and they account for a lot of this books content). Most of the library functionality falls into one of three categories: utility features written in .NET, wrappers around Windows functionality, and frameworks.The first group comprises utility types such as dictionaries, lists, and other collection classes, as well as string manipulation facilities such as a regular expression engine. There are also features that operate on a slightly larger scale, such as the object models for representing XML documents.Some library features are wrappers around underlying OS functionality. For example, there are classes for accessing the filesystem, and for using network features such as sockets. And there are classes for writing output to the console, which we can illustrate with the obligatory first example of any programming language book, shown in Example 1-1.Example 1-1. The inevitable “Hello, world” exampleclass Programstatic void Main()System.Console.WriteLine(“Hello, world“);Well examine all the pieces shown here in due course, but for now, note that even this simplest of examples depends on a class from the library-the System.Console class in this case-to do its job.Finally, the class library offers whole frameworks to support building certain kinds of applications. For example, Windows Presentation Foundation (WPF) is a framework for building Windows desktop software; ASP.NET (which is not an acronym, despite appearances) is a framework for building web applications. Not all frameworks are about user interfaces-Windows Communication Foundation (WCF) is designed for building services accessed over the network by other computer systems, for instance.These three categories are not strict, as quite a few classes fit into two. For example, the parts of the class library that provide access to the filesystem are not just thin wrappers around existing Win32 APIs. They add new object-oriented abstractions, providing significant functionality beyond the basic file I/O services, so these types fit into both the first and second categories. Likewise, frameworks usually need to integrate with underlying services to some extentfor example, although the Windows Forms UI framework has a distinctive API of its own, a lot of the underlying functionality is provided by Win32 components. So the three categories here are not strict. They just offer a useful idea of what sorts of things you can find in the class libraries.Language StyleC# is not the only language that runs on the .NET Framework. Indeed, support for multiple languages has always been a key feature of .NET, reflected in the name of its runtime engine, the CLR or Common Language Runtime. As this name implies, .NET is not just for one languagenumerous languages have access to the services of the .NET Framework class library. Why might you choose C# over the others?We already mentioned one important reason: C# was designed specifically for .NET. If you are working with .NET technologies such as WPF or ASP.NET, youll be speaking their language if you work in C#. Compare this with C+, which supports .NET through extensions to the original language. The extensions are carefully thought out and work well, but code that uses .NET libraries just looks different from normal C+, so programs that bridge the worlds of .NET and standard C+ never feel completely coherent. And the dual personality often presents dilemmas-should you use standard C+ collection classes or the ones in the .NET class library, for example? In native .NET languages such as C#, such questions do not emerge.F# is the odd one out here. Its a functional programming language, heavily influenced by a language called ML. Back in 1991, when your authors were first-year students, our universitys computer science course chose ML for the first programming language lectures in part because it was so academic that none of the students would previously have come across anything like it. F# is still at the academic end of the spectrum despite having climbed far enough down the ivory tower to be a standard part of a mainstream development environment. It excels at complicated calculations and algorithms, and has some characteristics that can help with parallel execution. However, as with many functional languages, the cost of making some hard problems easier is that a lot of things that are easy in more traditional languages are remarkably hard in F#- functional languages are adept at complex problems, but can be clumsy with simple ones. It seems likely that F# will mostly be used in scientific or financial applications where the complexity of the computation to be performed dwarfs the complexity of the code that needs to act on the results of those calculations.Managed CodeThe .NET Framework provides more than just a class library. It also provides services in subtler ways that are not accessed explicitly through library calls. For example, earlier we mentioned that C# can automate some aspects of memory management, a notorious source of bugs in C+ code. Abandoning heap-allocated objects once youre done with them is a coding error in C+, but its the normal way to free them in .NET. This service is provided by the CLR-the .NET Frameworks runtime environment. Although the C# compiler works closely with the runtime to make this possible, providing the necessary information about how your code uses objects and data, its ultimately the runtime that does the work of garbage collection.Depending on what sorts of languages you may have worked with before, the idea that the language depends heavily on the runtime might seem either completely natural or somewhat disconcerting. Its certainly different from how C and C+ work-with those languages, the compilers output can be executed directly by the computer, and although those languages have some runtime services, its possible to write code that can run without them. But C# code cannot even execute without the help of the runtime. Code that depends entirely on the runtime is called managed code.Managed compilers do not produce raw executable code. Instead, they produce an intermediate form of code called IL, the Intermediate Language. The runtime decides exactly how to convert it into something executable. One practical upshot of managed code is that a compiled C# program can run on both 32-bit and 64-bit systems without modification, and can even run on different processor architectures-its often possible for code that runs on an ARM-based handheld device to run unmodified on Intel-based PCs, or on the PowerPC architecture found in the Xbox 360 game console.If youre a Java developer, all of this will sound rather familiarjust substitute bytecode for IL and the story is very similar. Indeed, a popular but somewhat ignorant “joke” among the less thoughtful members of the Java community is to describe C# as a poor imitation of Java. When the first version of C# appeared, the differences were subtle, but the fact that Java went on to copy several features from C# illustrates that C# was always more than a mere clone. The languages have grown more obviously different with each new version, but one difference, present from the start, is particularly important for Windows developers: C# has always made it easy to get at the features of the underlying Windows platform.Continuity and the Windows EcosystemSoftware development platforms do not succeed purely on their own merits-context matters. For example, widespread availability of third-party components and tools can make a platform significantly more compelling. Windows is perhaps the most striking example of this phenomenon. Any new programming system attempting to gain acceptance has a considerable advantage if it can plug into some existing ecosystem, and one of the biggest differences between C# and Java is that C# and the .NET Framework positively embrace the Windows platform, while Java goes out of its way to insulate developers from the underlying OS.While .NET offers features to ease integration with the underlying platform, there is still support for non-Windows systems. Microsofts Silverlight can run C# and VB.NET code on Mac OS X as well as Windows. Theres an open source project called Mono which enables .NET code to run on Linux, and the related Moonlight project is an open source version of Silverlight. So the presence of local platform integration features doesnt stop C# from being useful on multiple platforms-if you want to target multiple operating systems, you would just choose not to use any platform-specific features.So the biggest philosophical difference between C# and Java is that C# provides equal support for direct use of operating-system-specific features and for platform independence. Java makes the former disproportionately harder than the latter.The latest version of C# contains features that enhance this capability further. Several of the new C# 4.0 features make it easier to interact with Office and other Windows applications that use COM automation-this was a weak spot in C# 3.0. The relative ease with which developers can reach outside the boundaries of managed code makes C# an attractive choice-it offers all the benefits of managed execution, but retains the ability to work with any code in the Windows environment, managed or not.Database DesignNeeds analysis to investigate and analyze the users business activities and the use of data and clarify the data type, scope, quantity, and exchange their business activities, and determine the requirements of the users of the database system and a variety of constraints, formation user needs Statute.The conceptual design of the user asked to describe the real world (which may be a factory, a shopping mall or a school, etc.), at which various classification, aggregation and generalization, an abstract conceptual data model. This conceptual model should reflect the various departments of the real world information structure, the flow of information, information of mutual restraint relations and various departments of information storage, query and processing requirements. That the model should avoid specific implementation details of the database on the computer, represented an abstract form. Expansion entity - contact model (ER model), for example, the first step is explicitly contained in the real world entities and their attributes, the links between the entities and information constraints, which gives each partial description of the information department referred to as a partial view of the user (in the database). Fragmentary view of a plurality of users previously obtained in the second step and then integrated into a global view of the real world, i.e. the user to be described the conceptual data model.The logical design work is a conceptual data model of the real-world design into a logical database model that is adapted to a particular database management system supported by the logical data model. At the same time, may be needed for a variety of data processing applications to produce the corresponding logical sub-mode. The result of this step designed the so-called “logical database.Physical designSelected the most suitable for the specific application tasks according to the specific database management system provides a variety of storage structures and access methods depends on the physical design measures for a specific computer architecture, the physical storage structure (including the file type, the index structure and data storage order bit logic), access method and access path. The result of this step the design is called “physical database.Verify the designOn the basis of the design, data collection and the establishment of a specific database, run some typical application tasks to verify the correctness and rationality of the database design. In general, a large database design process often need to go through multiple cycles repeated. When a step of the design problem is found, you may need to return to the front to be modified. Therefore, the database design should consider the possibility and convenience to modify the design in the future.Operation and maintenance of designThe database system was put into operation process, must constantly adjust and modify it.So far, database design, a lot of work still needs to do manually, in addition to a relational database has a set of more complete data the paradigm theory can be used to partially guide the database design, lack of a comprehensive database design theory, methods and tools, database design, automated or semi-automated design interactive. Database design future research direction is to study the theory of database design, seeking to more effectively express the semantic relationship data model to provide automatic or semi-automatic design tools and integrated development environment, the design of the various stages of the database design engineering, more standardized and more convenient and easy, so fully embodies the advanced ideas and methods of software engineering in the design of the database.Forming processRequirements analysis phase: the application requirements of individual usersConceptual design phase: the formation of machine-independent features, independent of the various DBMS products conceptual model (ER diagram)Logic design stage: First convert the ER diagram specific database products support data model, such as the relational model, a database logical pattern; based on user requirements, safety considerations, on the basis of the basic table and then create the necessary View (View), the formation of the outer mode of the dataPhysical design phase: physical storage arrangement according to the DBMS characteristics and processing requirements, indexing, and database mode is formed.Systems AnalysisSystems Analysis (Systems Analysis) The term was first used in the 1930s, was based on management problems as the main application object, a major in management information systems and critical stage, a key figure in this stage is responsible for systems analysts, The key question is to complete this stage of the task communication between developers and users. In the 1940s, due to the success of its application, has been further developed. Decades later, is the study of large-scale systems, or to create a complex system, widely used system analysis method.TaskSystematic analysis of the main task is to get detailed investigation of the system documentation focused, analysis of the organization within the overall management status and information processing. It focuses on the analysis of the whole process from the business point of view. The main contents of the analysis are: business and data flow is smooth, is reasonable; relationship between data, business processes and implementation of management functions; reform of the old system management mode and the management of the new system implementation of the method is feasible. Systems aim of the analysis is to determine the needs of users and their solutions down results include: the need to determine the understanding of the development of the existing organization and management; demand of the users of the information systems function; data and business processes; management capabilities and management data index system; system and the proposed changes and new management model. The content is determined by analysis of the system implemented on the basis of system design, system in the future.中文译文介绍 C#C#,读作“see sharp”是专门为.NET 平台设计的编程语言。从 2002 年首次发布以来,C# 创建了许多角色。它广泛的应用于网站服务器端以及 windows 桌面应用程序的客户端和服务器上。你可以用 C#编写智能手机的用户界面和 Xbox 360 游戏。最近,微软的Sliverlight 平台使得可以用 C#编写可以在网页浏览器上运行的 Internet 应用程序。但是什么样的语言是 C#?为了很好的了解一种语言并且有效的应用,仅仅专注于细节和机制是不够的,虽然在这本书中我们也将花费大量的时间来了解这些东西,但是同样重要的是了解这些细节之后的东西。因此,在本章中,我们将要了解 C#建立一个什么样的问题解决机制。因此,我们将探讨这种语言的风格,并且通过各个方面来区别 C#与其他语言。并且我们将在了解 C#的最新演变 第四个版本。编程语言的存在,可以让开发人员的开发工作更加的有效率。许多成功的编程语言都简化或者自动化了以前要靠繁琐的步骤才能完成的任务。有些提供新技术,使得老问题可以比以前更加有效或者在更大的规模上得到解决。当然,C#可以给你带来多大的差异取决于你的编程背景,所以这值得考虑,语言设计人员在开发 C#的时候考虑了哪些种类的人。C#是针对 windows 平台上的开发的,并且其语法跟使用 C、C+ 或者其他编程语言的编程人员的编程传统相似,如 JavaScript 和 Java 绘制。基本语言元素如语句、表达式、函数声明和流量控制,尽量与 C 家族语言接近。当然,一个熟悉的语法这个理由并不足够来选择一个语法,所以 C#提供了一个生产增强特性,这个特性在它之前的语言中并没有。垃圾回收机制把开发人员从常见的内存管理问题的暴政中解救出来,如内存泄漏和循环引用。编译代码可验证类型安全机制规则了广泛的错误和潜在的安全漏洞。但是 C 或 C+的 windows 开发人员可能不习惯这些功能,他们觉得这是 Java 淘汰下来的旧帽子,但是无论在对象模型, XML 或者数据库中,Java 都没有任何东西能够媲美 C#为搜集信息工作所提供的 “LINQ”功能。即使用其他语言编写,从外部原件集成代码也是非常痛苦的。C#中还采用了功能编程的支持,这是以前学术语言中的一个非常强大的功能。C#开发人员中使用的大多数有用的功能,许多都来自于.NET 框架,它为 C#提供运行环境、C# 库以及所有其他.NET 语言
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