基于全三维设计的航空紧固件信息表达  

Information Expression for Aerospace Fasteners Based on Full 3D Design

作　　者：郭建烨[1] 辛宇娟 屈力刚[1] 杨野光[1] 

机构地区：[1]沈阳航空航天大学航空制造工艺数字化国防重点学科实验室,沈阳110136

出　　处：《航空制造技术》2016年第20期101-104,共4页Aeronautical Manufacturing Technology

摘　　要：MBD模型将产品的设计、制造、检验、装配信息集成化,成为全三维设计过程准确、实时、可追溯到单一数据源,实现三维数字化制造、装配无纸化。占飞机整体零件数量半数以上的紧固件,种类繁多、造型复杂。针对紧固件信息设计、装配效率、准确率低的特点,提出了基于MBD的航空紧固件3D点线表达方式,分析航空紧固件及其相关信息的结构化管理组织方式,设计人员综合考虑零部件位置、载荷要求、变形程度等因素,确定紧固件型号,形成以3D点线形式表达紧固件并可直接交付装配部门的装配文件,使紧固件装配设计流程正规化、标准化。During full 3D design process, MBD model has become a accurate and real-time single data source, which integrate into all kinds of information about design, inspection, manufacture and assembly. MBD model realizes digital manufacturing and assembly, without two dimensional drawings. Fasteners have various types and the number of fasteners is more than half of the total number of parts. Based on the characteristics of low design ＆ assembly efficiency and low accuracy of fasteners, this article introduces a new expression for fasteners, analyses the organization of the relative information about the fasteners to establish standardized design ＆ assembly expression. To consider all factors, such as the position of the components, the load demand and the degree of deformation, designners decide the specifications of fastenerand use 3D point-line to express the fasteners under the relative assembly file, which makes design ＆ assembly expression for fasteners standardized.

关 键 词：MBD 航空紧固件 装配信息 单一数据源 全三维设计 

分 类 号：V229.1[航空宇航科学与技术—飞行器设计]