重庆大学毕业设计网

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篇一：重庆大学毕业设计(模版)

成人高等学历教育毕业设计（论文）

XXX系统设计

学生姓名：王X X

学号：2xxxxxxxx

指导教师：张X X，李XX

年级专业：XXXX

重庆大学继续教育学院

二O一O年六月

Graduation Design(Thesis) of adult higher education of

Chongqing University

Design of XXX System

Undergraduate: Wang XX

Student Number: 2 xxxxxxxx

Supervisor: Zhang XX，Li XX

Major: XXXX

College of Continuing Education of Chonqing University

June 2010

摘要

网络存储是近年来被广泛应用实用技术。按照存储资源的分布形式，网络存储可分为集中存储和分散存储两种模式。分散存储对网络性能、存储设备没有特殊要求，资源可广泛分布在多个位置，有利于大范围的数据共享。但是，在分散存储系统中，由于各个资源相互独立，资源和用户的管理难度大，用户对资源的访问十分不便，共享信息往往得不到充分利用。

针对以上问题，本文提出通过建立一个用户认证和管理系统UAMS，以虚拟账号方式管理用户，按照“资源分散存储、统一分配、用户集中管理”的模式整合分散存储资源。UAMS的核心是资源数据库和用户数据库，它们分别记录资源信息、用户信息以及资源分配情况。UAMS收集、记录各存储系统的资源属性信息和真实账号信息，将资源与虚拟账号关联，并把虚拟账号分配给用户。用户不必了解资源的具体情况，只需提交虚拟账号，通过身份认证后在UAMS的引导下就能访问所有资源。

在这种模式中，UAMS以中介的身份将用户和资源隔离，既能实现单点登录，又避免了各存储系统重复管理用户。统一身份认证还能提高整个存储系统的安全性。按照上述设计思路开发的UAMS存储管理系统已经应用在我校的某实验室中，该系统将分布在三个校区的多个存储资源整合，实现了分散存储系统的集中用户管理。

关键词：网络存储技术，分散存储系统，集中用户管理，统一身份认证

ABSTRACT

Network storage has been a widespread applied technology in recent years. According to the distribution form of stored resources, network storage can be classified into 2 modes: centralized storage and dispersive storage. Since dispersive storage requires no special network property and network devices, resources can be widely dispersed in any position, which is conducive to data sharing in a wide range. On the other hand, individual resource is independent of each other, which brings about difficulty of managing resources and users, inconvenience for users to access resources, and reduction of availability of shared information.

Considering the above-mentioned, the thesis proposes integrating disperse storage resources based on the mode of “disperse storage, unified allocation and centralized user management” through establishing an UAMS (User Authentication and Management System) and managing uses with virtual account. The core of UAMS is resource database and user database. They record resource information, user information and status of resource allocation. UAMS collects and records information of resource property and authentic account, associate resources with virtual accounts, and allocate virtual accounts to users. Unnecessary to understand the detailed information of resources, users can access all resources after applying for a virtual account and getting the identity authentication.

In this mode, UAMS acts as intermediate to separate users from resources. This provides convenience to users for accessing many dispersive resources and avoids repetitive management of users in each storage system. Moreover, unified identity authentication can improve the security of whole storage system. UAMS applied to a lab in Chongqing University have integrated multi-dispersive resources in three campuses and made centralized user management of dispersive storage systems.

Keywords： Network storage technology, Dispersive storage system, Centralized user

management, Unified identity authentication

中文摘要 ...................................................................................................................................... I 英文摘要 .................................................................................................................................... II 1 绪论 .......................................................................................................................................... 1

1.1 网络存储技术简介 .............................................................................................................. 1

1.1.1 网络存储技术的起源与发展 ...................................................................................... 1

1.1.2 网络存储体系结构 ...................................................................................................... 2

1.2 国内外的研究现状 .............................................................................................................. 7

1.3 研究的目的和内容 .............................................................................................................. 8

1.4 本研究的适用对象 .............................................................................................................. 9 2 网络资源的存储方式 ................................................................................................... 10

2.1 集中存储与分散存储 ........................................................................................................ 10

2.2 存储方式的选择依据 ........................................................................................................ 11

2.2.1 应用环境与存储方式的关系 .................................................................................... 11

2.2.2 网络结构对存储方式的影响 .................................................................................... 13 ??

6 用户认证和管理系统的设计与实现 ................................................................... 42

6.1 设计目标与适用范围 ........................................................................................................ 42

6.1.1 设计目标 .................................................................................................................... 42

6.1.2 适用范围 .................................................................................................................... 42

6.2 系统设计 ............................................................................................................................ 43

6.2.1 UAMS结构模型 ........................................................................................................... 43

6.2.2 资源和用户管理模式 ................................................................................................ 45

6.2.3 安全措施 .................................................................................................................... 47

6.3 主要功能实现细节 ............................................................................................................ 50

篇二：重庆大学本科毕业设计模版

重庆大学本科学生毕业设计（论文）

XXX教学楼的设计

学生：王X X 学号：20xxxxxx 指导教师：钱X X 助理指导教师：李专业：XXXX

如有多名指导教师，按署名先后依次填写，中间用逗号隔开，如：“张XX，李XX”。

若没有助理指导教师，请删除“助理指导教师姓名”栏；

若为校外完成毕业设计（论

，请改为“校外指导教师文）

姓名”即可。

学院、专业填全称

此文本框读后删除！！

重庆大学XXXXX学院

二OOX年六月

Graduation Design(Thesis) of Chongqing University

Design of XXX Teaching Building

Undergraduate: Wang XX Supervisor: Prof. Qian XX

Assistant Supervisor : Lecturer Li XX Major: XXX

学院、专业的翻译必须是全称，且各学院应统一。

此文本框读后删除！！

XXXXXXXX Chongqing University

June 200X

重庆大学本科学生毕业设计（论文）中文摘要

摘要

摘要是设计或论文内容不加注释和评论的简短陈述，应以第三人称陈述。它应具有独立性和自含性，即不阅读设计或论文的全文，就能获得必要的信息，摘要的内容应包含与设计或论文同等量的主要信息，供读者确定有无必要阅读全文，也供文摘等二次文献采用。

摘要一般应说明研究工作目的、实验研究方法、结果和最终结论等，而重点是结果和结论。摘要中一般不用图、表、化学结构式、计算机程序，不用非公知公用的符号、术语和非法定的计量单位。

摘要页置于英文题名页后。

中文摘要一般为400汉字左右，用小四号宋体。

关键词是为了文献标引工作从设计（论文）中选取出来用以表示全文主题内容信息款目的单词或术语。一般每篇设计（论文）应选取3~5个词作为关键词，关键词间用逗号隔开，最后一个词后不打标点符号。以显著的字符排在同种语言摘要的下方。如有可能，尽量用《汉语主题词表》等词表提供的规范词。

与正文空两行

正文，宋体小四号，行距20磅

，XXX，XXX，XXX，XXX（3-5个，逗号分隔，末尾不加符号）

黑体加粗小四号

宋体小四号

页眉，宋体小五号，加下划线。余同。

重庆大学本科学生毕业设计（论文）

ABSTRACT

空一行

Times New Roman 三号，加黑

空一行

英文摘要另起一页，内容应与“中文摘要”对应。使用第三人称，用现在时态编写。

（小四号，Times News Roman 字体）

与正文空两行

Key words： XXX, XXX, XXX, XXX, XXX

Times New Roman加粗小四号

Times New Roman小四号，末尾不加符号

重庆大学本科学生毕业设计（论文）目录

中文摘要 ................................................................................................... Ⅰ ABSTRACT .............................................................................................. Ⅱ 1绪论 ......................................................................................................... 1

工程XXX ................................................................................................ 1 1.1.1XXX ................................................................................................. 1 1.1.2 XXX ................................................................................................. 2 ...................................................................................................... 3 1.2.1 XXX ................................................................................................. 3 1.2.2 ........................................................................................................ 6 ......................................................................................................... 12

6 结论 ....................................................................................................... 386.1 XXX ..................................................................................................... 38 参考文献 ................................................................................................... 40 附录A：XXX公式的推导 ................................................................................... 43

篇三：重庆大学本科毕业设计毕业论文终稿

摘要

本文围绕258摩托车平叉焊接生产的工艺设计这一课题，针对目前摩托车平

叉生产布局不合理,生产效率低,产品一次合格率不高的问题, 调查收集目前国内外

摩托车平叉生产制造企业的现状,分析研究生产效率低,产品一次合格率不高的原

因, 进行全面论述，提出解决办法。通过分析当前中国摩托车行业的严峻形势，指

出摩托车生产技术革新的重要性和紧迫性。本文的主要内容包括摩托车平叉的结

构特点，焊接生产线设计的基本原则，焊接设备的选择及特点介绍等。通过对平

叉材质及其焊接性的分析，阐述焊接方法、填充金属、焊接工艺等因素对焊接加

工的影响规律，对焊接机器人进行研究改进使其适合此类摩托车平叉的焊接生产，

并制定出一套平叉焊接生产的质量控制基本方法。通过摩托车制造企业的实习及

实验研究，设计出一套258摩托车平叉焊接生产的工艺。

关键词：摩托车平叉，焊接，工艺，结构

ABSTRACT

In this article, around this study of the 258 motorcycle fork welding production

process design, in view of problem of current location of production of the motorcycle

fork, low productivity, a passing rate of products is not high, collection through survey

the current situation of both home and abroad motorcycle fork manufacturing

enterprises, analysis the reasons of the low production efficiency and the product is not

a high pass rate, conducting a comprehensive exposition, to propose solutions. By

analyzing the grim situation of China’s motorcycle industry, point out the importance

and urgency of the motorcycle production’s technological innovation, the main contents

of this article, including the structure characteristics of the motorcycle fork, the basic

principles of design of welding production line, the choice of welding equipment and

options and features introduced. Through the fork of welding material and analysis,

expound the welding method, filling metal, welding technology and other factors on the

impact of the law of welding, conducting a study for the welding robot to improve the

level of such a motorcycle fork welding production, and make a set of the basic

methods of the methods of quality control of fork welding production. Though practical

training in motorcycle manufacturers and experimental research, design a set of 258

motorcycle fork welding technology .

Key words: motorcycle fork, weld, technology, structure

摘要 ............................................................................................................................. I

ABSTRACT ................................................................................................................. II

1 绪论 .......................................................................................................................... 1

1.1课题背景 .............................................................................................................. 1

1.2国内外现状 ........................................................................................................... 1

1.2.1 摩托车工业的发展现状 ............................................................................. 1

1.2.2 焊接产业的现状 ....................................................................................... 3

1.3 选题目的及重点研究内容 ..................................................................................... 5

1.3.1 选题目的 .................................................................................................. 5

1.3.2 重点研究内容 ........................................................................................... 5

2 摩托车焊接生产线的设计基本原则 ............................................................. 6

2.1 产品的工艺流程设计 ............................................................................................ 6

2.1.1 设计的内容 .............................................................................................. 6

2.1.2 设计的方法 .............................................................................................. 6

2.2 工艺装备的设计 ................................................................................................... 7

2.3 焊接车间的设计 ................................................................................................... 8

3 平叉焊接生产的工艺流程设计 ....................................................................... 9

3.1 平叉简介 ............................................................................................................. 9

3.1.1 平叉的基本构造 ....................................................................................... 9

3.1.2 平叉的分类 .............................................................................................. 9

3.2 平叉的结构特点 ................................................................................................. 10

3.3 平叉材质的焊接性分析 ...................................................................................... 11

3.3.1 平叉材质的分析 ..................................................................................... 11

3.3.2 焊接性分析 ........................................................................................... 13

3.4 焊接方法的选择 ................................................................................................. 14

4 平叉焊接工艺流程的确定 .............................................................................. 17

4.1 减震支撑座、后减震下悬挂螺栓与平叉管的焊接 ................................................ 17

4.1.1 工艺流程 ................................................................................................ 17

4.1.2 具体焊接方法及设备选择 ....................................................................... 17

4.1.3 焊接材料的选择 ..................................................................................... 19

4.1.4 各工序内容 ............................................................................................ 20

4.2 轴套、加强板与平叉管的焊接 ............................................................................ 21

4.2.1工艺流程 ................................................................................................. 21

4.2.1 具体焊接方法及设备选择 ....................................................................... 21

4.2.3 焊接材料的选用 ..................................................................................... 24

4.2.4各工序内容 ............................................................................................. 24

4.3 链盒定位卡、链盒安装座与后制动器定位座的焊接 ............................................ 25

4.3.1 工艺流程 ................................................................................................ 25

4.3.2 具体焊接方法及设备选择 ....................................................................... 25

4.3.3 焊接材料的选用 ..................................................................................... 26

4.3.4 各工序内容 ............................................................................................ 26

5 质量控制 ............................................................................................................... 28

6 结论 ........................................................................................................................ 30

致谢 ............................................................................................................................... 31

参考文献 ...................................................................................................................... 32

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