摘要
为提高机械产品的设计效率、缩短研发周期,以汽轮机凝汽器圆弧形水室为例,研究采用尺寸驱动的设计方法自动生成相互关联的实体模型和工程图的关键技术.采用数据库作为UG和AutoCAD跨平台联动的接口,数据库内设置临时记录来实现结构参数临时存储的功能,引入链表数据结构解决了零件信息动态存储和调用问题,提出基于已命名基准定位的自动装配方法,给出工程图中参数化图块的开发过程及插入算法,开发出了根据输入数据即时出图的计算机辅助设计软件,提高了产品的设计效率和设计质量.
To guarantee the design quality and improve the design efficiency of mechanical products, taking arc water chamber of steam turbine condenser as example, the paper researches the key technologies in the development process of parametric design system, which can generate both 3D models and associated 2D drawings automatically. Adopting database as the interface of UG and AutoCAD, 2D/3D bidirectional associated relationship is established across platforms. A nonpermanent record is set within the database to save parameters temporarily. Dynamic storage and invocation of parts information is realized by introducing linked- list data structure. Automatic assembly method based on named datum is proposed. Development process and insertion algorithm of modularized geometric figure are also presented. The experimental result shows that this parameter-driven software is a successful application of computer-aided design.
出处
《哈尔滨工业大学学报》
EI
CAS
CSCD
北大核心
2013年第11期32-37,共6页
Journal of Harbin Institute of Technology
关键词
参数化设计
二
三维跨平台联动
动态零件列表
已命名基准定位
图块
parametric design
cross-platform 2D/3D bidirectional associated relationship
dynamic partslist
named datum orientation
modularized geometric figure
