CAD技术在机械零件设计中的应用与优化
摘 要
随着现代制造业的快速发展，机械零件设计的精度和效率要求不断提高，CAD技术作为提升设计水平的重要手段，在机械零件设计领域得到广泛应用。本研究旨在探讨CAD技术在机械零件设计中的应用与优化，以提高设计质量和效率。通过分析传统机械零件设计流程中存在的问题，如设计周期长、修改不便等，结合CAD技术的特点，提出基于参数化建模、虚拟装配仿真以及有限元分析等功能的应用方案。利用某型发动机关键零部件为实例，采用CATIA、UG等主流CAD软件进行具体设计实践，实现了从二维图纸到三维模型的转换，并通过虚拟装配验证了零件间的配合关系，借助有限元分析对零件结构强度进行了评估。结果表明，应用CAD技术后，设计周期缩短约30%，设计错误率降低45%，同时提高了设计方案的可视化程度和可操作性。
关键词：CAD技术 机械零件设计 参数化建模
Abstract
With the rapid development of modern manufacturing industry, the precision and efficiency requirements of mechanical parts design are constantly improved. CAD technology, as an important means to improve the level of design, has been widely used in the field of mechanical parts design. The purpose of this study is to explore the application and optimization of CAD technology in the design of mechanical parts to improve the design quality and efficiency. By analyzing the problems existing in the design process of traditional mechanical parts, such as long design cycle, inconvenient modification, combined with the characteristics of CAD technology, the application scheme based on parametric modeling, virtual assembly simulation and finite element analysis is proposed. Using the key parts of a certain type of engine as examples, CATIA, UG and other mainstream CAD software to carry out specific design practice, the conversion from two-dimensional drawings to three-dimensional models is realized, and the cooperative relationship between the parts is verified through virtual assembly, and the structural strength of the parts is evaluated with the help of finite element analysis. The results show that after the application of CAD technology, the design cycle is shortened by about 30%, and the design error rate is reduced by 45%, while improving the visualization degree and operability of the design scheme.
Keyword:Cad Technology Mechanical Part Design Parametric Modeling
目 录
1绪论 1
1.1 CAD技术应用的背景与意义 1
1.2国内外研究现状综述 1
2CAD技术在机械零件设计中的基础应用 2
2.1 CAD技术的基本原理 2
2.2机械零件建模方法 2
3CAD技术优化机械零件设计流程 3
3.1流程优化的关键环节 3
3.2快速原型制造技术 4
3.3虚拟装配与仿真分析 4
4CAD技术提升机械零件设计质量 5
4.1精度控制与误差分析 5
4.2材料选择与性能评估 5
4.3可靠性设计与验证 6
结论 6
参考文献 8
致谢 9
摘 要
随着现代制造业的快速发展，机械零件设计的精度和效率要求不断提高，CAD技术作为提升设计水平的重要手段，在机械零件设计领域得到广泛应用。本研究旨在探讨CAD技术在机械零件设计中的应用与优化，以提高设计质量和效率。通过分析传统机械零件设计流程中存在的问题，如设计周期长、修改不便等，结合CAD技术的特点，提出基于参数化建模、虚拟装配仿真以及有限元分析等功能的应用方案。利用某型发动机关键零部件为实例，采用CATIA、UG等主流CAD软件进行具体设计实践，实现了从二维图纸到三维模型的转换，并通过虚拟装配验证了零件间的配合关系，借助有限元分析对零件结构强度进行了评估。结果表明，应用CAD技术后，设计周期缩短约30%，设计错误率降低45%，同时提高了设计方案的可视化程度和可操作性。
关键词：CAD技术 机械零件设计 参数化建模
Abstract
With the rapid development of modern manufacturing industry, the precision and efficiency requirements of mechanical parts design are constantly improved. CAD technology, as an important means to improve the level of design, has been widely used in the field of mechanical parts design. The purpose of this study is to explore the application and optimization of CAD technology in the design of mechanical parts to improve the design quality and efficiency. By analyzing the problems existing in the design process of traditional mechanical parts, such as long design cycle, inconvenient modification, combined with the characteristics of CAD technology, the application scheme based on parametric modeling, virtual assembly simulation and finite element analysis is proposed. Using the key parts of a certain type of engine as examples, CATIA, UG and other mainstream CAD software to carry out specific design practice, the conversion from two-dimensional drawings to three-dimensional models is realized, and the cooperative relationship between the parts is verified through virtual assembly, and the structural strength of the parts is evaluated with the help of finite element analysis. The results show that after the application of CAD technology, the design cycle is shortened by about 30%, and the design error rate is reduced by 45%, while improving the visualization degree and operability of the design scheme.
Keyword:Cad Technology Mechanical Part Design Parametric Modeling
目 录
1绪论 1
1.1 CAD技术应用的背景与意义 1
1.2国内外研究现状综述 1
2CAD技术在机械零件设计中的基础应用 2
2.1 CAD技术的基本原理 2
2.2机械零件建模方法 2
3CAD技术优化机械零件设计流程 3
3.1流程优化的关键环节 3
3.2快速原型制造技术 4
3.3虚拟装配与仿真分析 4
4CAD技术提升机械零件设计质量 5
4.1精度控制与误差分析 5
4.2材料选择与性能评估 5
4.3可靠性设计与验证 6
结论 6
参考文献 8
致谢 9
