基于ug的船用螺旋桨.doc
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基于ug的船用螺旋桨,摘要船用螺旋桨是船舶动力系统的核心部件，其设计与制造精度的高低直接影响了船舶推进性能的好坏。由于螺旋桨是复杂的自由曲面零件，其设计与制造难度较高。传统的螺旋桨设计制造方法落后，既费时费力，精度又难以保证。随着数控加工技术的发展，螺旋桨逐渐采用数控机床来加工，由于叶片曲面手工编程难度较大、编程周期较长，严重影响了螺旋桨的...
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摘 要
船用螺旋桨是船舶动力系统的核心部件，其设计与制造精度的高低直接影响了船舶推进性能的好坏。由于螺旋桨是复杂的自由曲面零件，其设计与制造难度较高。传统的螺旋桨设计制造方法落后，既费时费力，精度又难以保证。随着数控加工技术的发展，螺旋桨逐渐采用数控机床来加工，由于叶片曲面手工编程难度较大、编程周期较长，严重影响了螺旋桨的加工效率，螺旋桨的自动编程技术显得尤为重要。
目前，国内螺旋桨制造企业的数控编程方法相对比较落后，虽然某些企业已经引进了通用的CAD/CAM软件，但是由于编程操作繁琐复杂、对编程人员经验要求高、重复性劳动多等问题，尚未在螺旋桨的数控编程中发挥重要作用。如果引进国外专用的螺旋桨CAD/CAM软件，价格又极其昂贵，令很多厂家难以承受。
为了解决以上问题，对螺旋桨的设计方法、工艺规划以及数控加工等方面的内容进行了研究，并且在此基础上开发了船用螺旋桨的CAD/CAM系统，课题主要研究内容与成果如下：
（1）研究螺旋桨的分类方法，根据螺旋桨的图谱设计方法，归纳总结出各类螺旋桨的设计尺寸表（包括螺旋桨的桨叶轮廓尺寸表和桨叶切面尺寸表），将这些数据存入数据库，为螺旋桨的CAD系统提供必要的数据支撑。
（2）分析研究各类螺旋桨的结构特征，结合自由曲面的造型原理，得出螺旋桨的造型方法以及各类螺旋桨造型的异同点，在此基础上研究螺旋桨的参数化建模技术，以VC++和UG/Open Grip为工具开发了螺旋桨的型值点计算模块和图形生成模块，实现了螺旋桨的参数化建模。
（3）将知识工程技术应用到螺旋桨的数控编程中，归纳总结各类螺旋桨的数控加工工艺，形成广义知识库（包括工艺知识库、刀具库、切削参数库、机床及后处理库和模板库），在此基础上建立加工知识模板，为实现螺旋桨的智能编程系统提供必要的数据支撑。利用UG/Open、VC++6.0等工具开发了基于UG的螺旋桨智能数控编程系统，并通过螺旋桨的数控编程实例验证了上述研究成果的有效性。
（4）最后以VERICUT软件为平台构建了船用螺旋桨的整个加工工艺系统，通过加工仿真验证了数控程序的准确性。
关键词：船用螺旋桨；参数化建模；知识工程；智能编程；仿真验证
Abstract
Marine propeller is the core component of marine power system, its precision of design and manufacture directly influences the performance of ship. As propeller is a kind of complex freeform surface part, the difficulty of its design and manufacture is high. Traditional method of design and manufacture is backward, it’s time-consuming, and the accuracy is hard to guarantee. As the development of NC machining technology, it gradually uses NC machine tool to process propeller. Because manual programming of blade surface is more difficult, the cycle of programming is longer, and it seriously affects the processing efficiency of propeller, auto-programming of propeller is particularly important.
Nowadays NC programming method of domestic propeller manufacturing enterprises is relatively backward, although some enterprises have imported common CAD/CAM software, it has not yet played an important role in NC programming of propeller due to complicated programming operation, demanding programmer’s experience and repetitive work,. If importing foreign special CAD/CAM software of propeller, the price is extremely expensive, and many companies are hard to undertake.
In order to solve the problem above, the design method of propeller, process planning, CNC machining and other aspects have been studied. And on this basis, CAD/CAM system of marine propeller has been developed. Main research content and achievement of this paper are as follows:
(1) Research the classification method of propeller, according to map design method of propeller, conclude and summarize design size table of all kinds of propeller (including blade profile size table and blade section size table), put all the data into the database, and it provides necessary data support for CAD system of propeller.
(2) Analysis structural feature of all kinds of propeller, combined with the modeling principle of free-form surface, and come to the modeling method of propeller and similarities and differences of all kinds of propeller modeling. On this basis, study parametric modeling technology, and take VC++and UG/Open Grip as tools to develop data point calculation module and drawing generation module, eventually realize parametric modeling of propeller.
(3) Apply knowledge based engineering technology into the process of NC programming, summarizes the NC machining technology of all kinds of propeller, and form general knowledge base (including process knowledge base library, tool library, cutting parameter library, machine and post-processing library and template library). On this basis, build machining knowledge template, this provide necessary data support for intelligent programming of propeller. Take UG/Open and VC++6.0 as tools to develop intelligent NC programming system of propeller, in the end verify the research result by NC programming of the propeller example.
(4) At last construct the whole machining process system based on the platform of VERICUT, and verify the accuracy of NC programming by machining simulation.
Key words: Marine Propeller; Parametric Modeling; KBE; Intelligent Programming; Simulation
目 录
摘 要 I
Abstract III
第1章 绪论 1-b..
船用螺旋桨是船舶动力系统的核心部件，其设计与制造精度的高低直接影响了船舶推进性能的好坏。由于螺旋桨是复杂的自由曲面零件，其设计与制造难度较高。传统的螺旋桨设计制造方法落后，既费时费力，精度又难以保证。随着数控加工技术的发展，螺旋桨逐渐采用数控机床来加工，由于叶片曲面手工编程难度较大、编程周期较长，严重影响了螺旋桨的加工效率，螺旋桨的自动编程技术显得尤为重要。
目前，国内螺旋桨制造企业的数控编程方法相对比较落后，虽然某些企业已经引进了通用的CAD/CAM软件，但是由于编程操作繁琐复杂、对编程人员经验要求高、重复性劳动多等问题，尚未在螺旋桨的数控编程中发挥重要作用。如果引进国外专用的螺旋桨CAD/CAM软件，价格又极其昂贵，令很多厂家难以承受。
为了解决以上问题，对螺旋桨的设计方法、工艺规划以及数控加工等方面的内容进行了研究，并且在此基础上开发了船用螺旋桨的CAD/CAM系统，课题主要研究内容与成果如下：
（1）研究螺旋桨的分类方法，根据螺旋桨的图谱设计方法，归纳总结出各类螺旋桨的设计尺寸表（包括螺旋桨的桨叶轮廓尺寸表和桨叶切面尺寸表），将这些数据存入数据库，为螺旋桨的CAD系统提供必要的数据支撑。
（2）分析研究各类螺旋桨的结构特征，结合自由曲面的造型原理，得出螺旋桨的造型方法以及各类螺旋桨造型的异同点，在此基础上研究螺旋桨的参数化建模技术，以VC++和UG/Open Grip为工具开发了螺旋桨的型值点计算模块和图形生成模块，实现了螺旋桨的参数化建模。
（3）将知识工程技术应用到螺旋桨的数控编程中，归纳总结各类螺旋桨的数控加工工艺，形成广义知识库（包括工艺知识库、刀具库、切削参数库、机床及后处理库和模板库），在此基础上建立加工知识模板，为实现螺旋桨的智能编程系统提供必要的数据支撑。利用UG/Open、VC++6.0等工具开发了基于UG的螺旋桨智能数控编程系统，并通过螺旋桨的数控编程实例验证了上述研究成果的有效性。
（4）最后以VERICUT软件为平台构建了船用螺旋桨的整个加工工艺系统，通过加工仿真验证了数控程序的准确性。
关键词：船用螺旋桨；参数化建模；知识工程；智能编程；仿真验证
Abstract
Marine propeller is the core component of marine power system, its precision of design and manufacture directly influences the performance of ship. As propeller is a kind of complex freeform surface part, the difficulty of its design and manufacture is high. Traditional method of design and manufacture is backward, it’s time-consuming, and the accuracy is hard to guarantee. As the development of NC machining technology, it gradually uses NC machine tool to process propeller. Because manual programming of blade surface is more difficult, the cycle of programming is longer, and it seriously affects the processing efficiency of propeller, auto-programming of propeller is particularly important.
Nowadays NC programming method of domestic propeller manufacturing enterprises is relatively backward, although some enterprises have imported common CAD/CAM software, it has not yet played an important role in NC programming of propeller due to complicated programming operation, demanding programmer’s experience and repetitive work,. If importing foreign special CAD/CAM software of propeller, the price is extremely expensive, and many companies are hard to undertake.
In order to solve the problem above, the design method of propeller, process planning, CNC machining and other aspects have been studied. And on this basis, CAD/CAM system of marine propeller has been developed. Main research content and achievement of this paper are as follows:
(1) Research the classification method of propeller, according to map design method of propeller, conclude and summarize design size table of all kinds of propeller (including blade profile size table and blade section size table), put all the data into the database, and it provides necessary data support for CAD system of propeller.
(2) Analysis structural feature of all kinds of propeller, combined with the modeling principle of free-form surface, and come to the modeling method of propeller and similarities and differences of all kinds of propeller modeling. On this basis, study parametric modeling technology, and take VC++and UG/Open Grip as tools to develop data point calculation module and drawing generation module, eventually realize parametric modeling of propeller.
(3) Apply knowledge based engineering technology into the process of NC programming, summarizes the NC machining technology of all kinds of propeller, and form general knowledge base (including process knowledge base library, tool library, cutting parameter library, machine and post-processing library and template library). On this basis, build machining knowledge template, this provide necessary data support for intelligent programming of propeller. Take UG/Open and VC++6.0 as tools to develop intelligent NC programming system of propeller, in the end verify the research result by NC programming of the propeller example.
(4) At last construct the whole machining process system based on the platform of VERICUT, and verify the accuracy of NC programming by machining simulation.
Key words: Marine Propeller; Parametric Modeling; KBE; Intelligent Programming; Simulation
目 录
摘 要 I
Abstract III
第1章 绪论 1-b..
