基于模型的涡扇发动机性能衰减评估
Model-based Performance Degradation Evaluation for Turbofan Engine
赵伟辰 1王晨 1李兆红 1杨怀丰 1王军1
作者信息
- 1. 中国航发沈阳发动机研究所,辽宁沈阳 110066
- 折叠
摘要
为了获得涡扇发动机寿命期内各部件性能衰减程度与衰减趋势,基于发动机性能计算模型与部件特性衰减因子,采用序列二次优化算法对1台300 h持久试车的发动机各阶段部件性能衰减情况进行寻优计算.计算结果表明:模型计算结果与试验测量结果误差最大为4.33％,绝大部分参数误差在±2.0％范围;高压部件持久试车前期衰减,后期低压部件衰减较快,300 h试车后压气机与低压涡轮衰减最严重.
Abstract
In order to obtain the performance degradation and degradation trend of each component in turbofan engine life cycle,sequential quadratic optimization algorithm based on engine performance calculation model and component degra-dation factors was used to optimize the performance degradation in each stage of a 300 hour long-term test engine.The calculation results show that the maximum error between the model calculation results and the experimental measurement results is 4.33％,and the error of most parameters is within±2.0％.In the earlier stage of long-term test,the high-pressure turbine and compressor decay,the low-pressure turbine and fan components decay faster in the later stage and the compressor and low-pressure turbine decay most seriously after 300 hours test.
关键词
涡扇发动机/性能衰减/衰减因子/序列二次优化算法/持久试车Key words
turbofan engine/performance degradation/degradation factors/sequential quadratic optimization algorithm/long-term test引用本文复制引用
基金项目
两机重大专项基础研究项目(J2019-I-0004)
出版年
2024
国家科技期刊平台
NSTL
万方数据