【作者】 王鹏飞；

【导师】 牛文铁；

【作者基本信息】 天津大学 ， 机械工程， 2012， 硕士

【摘要】 在机床整机及其主要结构件的有限元分析过程中,分析信息的重复输入及非智力操作占用了大量时间。随着CAD、CAE系统在机床设计领域的广泛应用,将CAD、CAE系统信息集成,实现机床有限元分析的自动化、智能化成为工程师的普遍要求。本文结合机床有限元分析的过程及特点,以实现机床快速高效的有限元分析为目标,系统研究了CAD/CAE集成、分析特征建模、机床快速有限元分析系统等关键技术问题,取得如下研究成果:(1)提出了基于分析特征的CAD/CAE集成方法。该方法以分析特征作为信息载体,通过分析特征建模、分析特征与APDL映射实现CAD、CAE系统之间的信息传输。(2)在对机床典型结合部等效建模方法研究的基础上,结合机床有限元分析过程所需信息,构建了分析特征面向对象模型,并创建了交互式分析特征定义知识库。(3)深入研究了应用APDL实现机床在ANSYS中自动化分析的方法,建立了分析特征与APDL的映射关系,并创建了分析特征与APDL映射知识库。(4)以SolidWorks为二次开发平台,采用VB.NET开发工具开发出机床快速有限元分析系统。系统界面友好、操作方便,已在机床的有限元分析中得到成功应用,显著提高了机床分析的效率。更多还原

【Abstract】 During the finite element analysis (FEA) process of machine tool and its main structural components, analysis information reentering and non-intelligence operations take a lot of time. With the widely application of CAD/CAE in the field of machine tool design, the information integration of CAD/CAE becomes the universal requirement of engineers, which can achieve the automatic and intelligent FEA of machine tool. Base on the FEA process and its characteristic, some key technology problems are researched, including CAD/CAE integration, analysis feature modeling and the software system for rapid FEA of machine tool, in order to realize rapid and efficient FEA of machine tool. The main achievements are as follows:(1) An analysis feature-based CAD/CAE approach is proposed. This approach uses analysis feature as information carriers, which implements the CAD/CAE integration by analysis feature modelinig and mapping between analysis feature and APDL.(2) A object-oriented model of analysis feature and its defination knowledge base are established, which are based on the research of equivalent modeling approach of machine tool joints and related information in the FEA process of machine tool.(3) A mapping ralationship between analysis feature and APDL is established, which is based on the research of using APDL to realize the automatic FEA of machine tool in ANSYS system. In addition, a mapping knowledge base related is also created.(4) On the CAD platform of SolidWorks, with VB.NET as development tools, the software system for rapid FEA of machine tool has been developed. This system is operation convenient because of its friendly interface, and has been successfully applied for FEA of machine tool, which significantly improves the FEA efficiency.更多还原