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时间:2020-06-04
《直升机桨叶结冰喷洒塔设计.pdf》由会员上传分享,免费在线阅读,更多相关内容在应用文档-天天文库。
1、研究论文(Papers)科技导报2013,31(28/29)直升机桨叶结冰喷洒塔设计郑莉’,郭元军’。刘伟光,冯康1.中国航空工业集团公司武汉航空仪表有限责任公司,武汉4300742.中国航空工业集团公司直升机设计研究所,江西景德镇333001摘耍直升机桨叶结冰会严重影响直升机的飞行性能。甚至引发危及飞行安全的事故。喷洒塔是一类用于直升机主桨或尾桨的模拟试验设备,可在自然低温环境下,人工构造云雾条件进行结冰及防除冰试验。论述了结冰喷洒塔的系统组成及工作原理,分析了设计及试验过程中的关键技术问题。以某型直升机尾桨结冰喷洒塔研制为例。设计了系统参数,进行了设备配置。布置了工艺流程,
2、通过液态水含量及云雾粒子直径标定。确定了喷雾参数,完成了试验及试验结果分析。结果表明,系统采取空气雾化喷嘴造雾,4O个喷嘴布置为5排。保证喷雾浓度及云雾粒子运行距离。系统有效优化了喷嘴设置,通过调节喷雾水压(O.2—0.4MPa)、喷雾气压(0.3~0.4MPa)、开启的喷嘴数(6~18个)等喷雾参数。实现了液态水含量及云雾粒子直径的控制。整体试验效果良好。关■词结冰喷洒塔;喷雾;直升机尾桨中圈分类号V216.5文献标志码Adoi10.39814.issn.1000—7857.2013.h2.007DesignofIcingSprayRigforHelicopterRotorB
3、ladeTestZHENGLi,GUOYuanjun,LIUWeiguang。,FENGKang1.WuhanAviationInstrumentCorporation,AviationIndustryCorporationofChina,Wuhan430074,China2.ChinaHelicopterResearchandDevelopmentInstitute,AviationIndustryCorporationofChina,Jingdezhen333001,JiangxiProvince,Chinagl:x~raetIcingonbladeswillserious
4、lyaffecthelicopterSperformance,andevenresultinaccidentsendangenngthesafety.IcingSprayRig(ISR)forhelicopterrotorbladeisasimulationsystemusedinthetestofmainrotatorandtailrotatorofhelicopter,whichCalartificiallybuildcloudconditionsfortheicing,anti—icinganddeicingtestsatnaturallowtemperature.Thi
5、spaperpresentsthecomponentsofanISRandthecorrespondingprinciple,andanalyzesthecriticaltechniqueswithintherigdesignandapplications.Asacasestudy,anISRisdesignedforthetailrotortestofacertaintypeofhelicopter.Forthedesign,theparameterofthesystemareascertained,andtheequipmentsandconfiguresaredeterm
6、ined.Basedonthecalibrationonliquidwatercontentandcloudparticlediameter,thesprayparametersadoptedincourseofthetestareobtained.Thetestandtheresultanalysiswerecariedout.Airatomizingnozzleswereusedtomakefog,anditwasfoundthat40nozzlesin5rowsarereasonable,andthespraydensityandtheflowdistanceofthec
7、loudparticlescanmeettherequirementsofthetest.Thesystemcanoptimizethesprayschemeeffectively,andtheliquidwatercontentandthecloudparticlediametercanbecontrolledbyadjustingthewaterpressure(0.2—0.4MPa),theairpressure(0.3—0.4MPa)andthequantitiesoftheoper
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