基于数字样机的民用飞机发动机安装位置确定方法研究

摘要

基于CATIA软件，以民用飞机发动机翼吊式安装布局为例，提出了通过建立飞机坐标系和发动机坐标系，确定发动机坐标系在飞机坐标系内的位置，从而确定发动机相对于飞机安装位置的方法，结合飞机和发动机的两种典型状态(巡航热态和地面冷态)，介绍了发动机安装位置的表示方法和具体确定过程，为民用飞机发动机的集成安装设计提供参考。%This paper studied an engine instal ation position method which is based on CATIA and takes the engine under-wing as example by creating the coordinate for the aircraft and engine, then determining the engine coordinate in the aircraft coordinate. Two typical aircraft and engine conditions (the cruise hot and the ground cold) are studied to introduce the process and result of the engine instal ation position method. By this method, this paper supports the civil aircraft engine instal ation design.