航空发动机消喘措施试验验证  

Experimental Verification of Surge Suppression Actions for Aeroengine

作　　者：崔金辉 韩鹏江 CUI Jin-hui;HAN Peng-jiang(AECC Shenyang Engine Research Institute,Shenyang 110015,China;Chinese People's Liberation Army Unit 93156,Shenyang 110031,China)

机构地区：[1]中国航发沈阳发动机研究所,沈阳110015 [2]中国人民解放军93156部队,沈阳110031

出　　处：《航空发动机》2022年第5期58-64,共7页Aeroengine

基　　金：航空动力基础研究项目资助。

摘　　要：为明确燃烧室短时切油、关小压气机可调静子叶片(VSV)角度和放大喷口喉部面积等消喘措施对发动机消喘功能的影响,依托某型变几何混排涡扇发动机制定了试验方案,开展了消喘措施专项验证试验,分别得到了消喘失败和消喘成功时的切油深度、VSV角度瞬时关小量和喷口喉部面积瞬时放大量,并从理论上对试验现象做了解释。结果表明:试验结果与理论分析相一致,证明试验结果是可靠的;试验结果能够为消喘系统的设计提供参考,在设计消喘系统时,消喘措施的具体调整量需通过试验手段确定;适当增大切油深度、增加喷口喉部面积瞬时放大量、增加VSV角度瞬时关小量,有利于发动机消喘;加快VSV和喷口等几何可调特征部件的响应速度,有利于发动机快速退出喘振。In order to determine the impact of surge suppression actions such as combustor short-duration throttle-down,closing compressor variable stator vane(VSV)and enlarging nozzle throat area,a test plan was developed for a variable geometry mixed exhaust turbofan engine,and a dedicated surge suppression actions verification test was carried out.The fuel cutoff depth,instantaneous amount of VSV closing and instantaneous nozzle throat area increment were obtained when surge suppression failed and succeeded,respectively,the test phenomenon was theoretically explained.The test results are consistent with the theoretical analysis,which proves that the test results are reliable.The test results can provide reference for the design of a surge suppression system,however,the specific adjustment amount of the surge suppression actions should be determined experimentally.Proper increase of fuel cutoff depth,instantaneous nozzle throat area increment and instantaneous amount of VSV closing are beneficial to surge suppression.Faster actuation of variable geometry such as VSV and nozzle is helpful for the engine to rapidly recover from the surge.

关 键 词：消喘 切油 可调静子叶片 喷口喉部面积 试验验证 航空发动机 

分 类 号：V233.95[航空宇航科学与技术—航空宇航推进理论与工程]