航空发动机气密性设计和验证.pdf

Internal Combustion Engine & Parts ·1·
航空发动机气密性设计和验证
Air Tightness Design and Verification of Aeroengine
王秋阳 WANG Qiu-yang；黄正斌 HUANG Zheng-bin；孟祥海 MENG Xiang-hai
（中国航发商用航空发动机有限责任公司，上海 201108）
（Air China Commercial Aero Engine Co.，Ltd.，Shanghai 201108，China）
摘要： 泄漏对航空发动机性能、安全和寿命均有重要影响，但目前国内军标、航标等仍尚未建立航空发动机气密性检查的评定方
法和试验规范。本文从商用发动机研制需求出发，制定了一套涵盖设计、装配和试验整个研制阶段的发动机气密性设计与验证思路：
主动策划典型结构泄漏特性研究、并进行结构优化；策划发动机多层级的打压试验、提前识别泄漏风险；建立发动机泄漏影响分析方
法和评估模型；利用打压方案支撑进行试验过程中的漏油问题排故等。构建气密性设计、仿真、试验耦合的多学科研究体系，以支撑发
动机运转试验，为提高发动机性能、可靠性和安全性奠定技术基础。
Abstract: Leakage has an important impact on the performance, safety and service life of aero-engine. However, the evaluation method
and test specification for air tightness inspection of aero-engine have not been established in domestic military standard and navigation
standard. Based on the requirements of commercial engine development, a set of ideas of engine air tightness design and verification
covering the whole development stage of design, assembly and test is formulated in this paper: actively planning the research on leakage
characteristics of typical