文档介绍：摘要
离心通风器作为航空发动机的一个完整的独立附件,其性能好坏影响着发动机的正常工作。本文采用当今世界CAD的优秀代表Pro/Engineer软件作为支撑软件,采用Windows XP作为操作系统,以目前广泛流行的Microsoft Visual C++,通过对离心通风器的设计计算的推导,得出可以用于离心通风器的计算公式,并且将设计的全过程程序化;综合考虑离心通风器各个部件的结构和功能确定出各自的参数化设计的主参数;通过Pro/Engineer软件的强大的参数化设计功能,实现了零件的参数化设计;运用Pro/Engineer软件的二次开发模块,实现离心通风器的计算机辅助参数化设计功能,建立了离心通风器的参数化设计系统。
关键词:离心通风器;参数化设计;Pro/Engineer二次开发
Abstract
Centrifugal Ventilator as an aviation engine plete independent Annex, the performance is good or bad impact on the normal operation of the engine. System is an excellent representative of the world CAD Pro/Engineer software as support software, using Windows XP as the operating system to the widely popular Microsoft Visual C++ as development tools design and calculation programs. First, the limited availability of data for detailed study, summarized step by step, the final form of the conventional design Centrifugal Ventilator general steps: centrifugal ventilator through the design and calculation of derivation, can be used for centrifugal ventilator formula, and the whole process of the design procedures; comprehensive consideration of the ponents of centrifugal ventilator determine their structure and function of the parameters of the main design parameters; by Pro/ Engineer software, a powerful parametric design capabilities, to achieve the part parametric design; the use of Pro/Engineer software, the secondary development of modules to achieve centrifugal ventilator puter aided design capabilities, establish the parameters of the centrifugal design of ventilation systems.
Key words:Centrifugal ventilators;Parametric design; Pro/Engineer secondary development
一前言
航空发动机是知识密集、技术密集、资金密集的产品,其研制属于技术高、风险大、周期长和投资多的工程。航空发动机的发展虽然已各大部件的技术进步为代表,但也要求传动与润滑技术与之相适应。先进发动机高的涡轮进口温度,高的主轴转速及严格的空间限制,要求传动及润滑系统在高温、高速、高负荷、轻质量、激烈的状态变化、紧凑的空间限制、长寿命和高可靠性下发挥其功能。传动及润滑系统给发动机设计与研制带来了大量不同于一般的机械的技术难题,是影响发动机可靠性、安全性、寿命和效率的重要研究领域,也是制约发动机发展的关键技术。
我国航空发动机的机械传动及润滑系统的研制还处于低水平状态,但已经从仿制走向了自行研制的道路,随着各个型号发动机的研制的需求和预先研究有了较大的发展。沈阳发动机