基于声波导管的热辐射区域噪声测试技术齐江龙1,杨美宁2,呙道军1,刘时秀1,范博超1(1.北京强度环境研究所;2.首都航天机械有限公司:北京100076)摘要:为了在热噪声行波管试验段热辐射区域内准确测量噪声响应,基于管道传声原理和声学有限元仿真分析,设计了有效测量频率范围为20~1000Hz的声波导管测试系统,并开展常温验证试验。试验结果表明,声波导管测试系统满足设计指标,设计阶段采用的数值分析方法有效。最后通过热噪声试验考核了该声波导管测试系统的环境适应性——能够经受住700℃的热噪声试验环境。关键词:热噪声试验;噪声测量;声波导管;行波管;验证试验中图分类号:TB52;V414.4文献标志码:A文章编号:1673-1379(2023)01-0069-05DOI:10.12126/see.2022068TechnologyofnoisemeasurementinthermalradiationzonebasedonacousticwaveguideQIJianglong1,YANGMeining2,GUODaojun1,LIUShixiu1,FANBochao1(1.BeijingInstituteofStructureandEnvironmentEngineering;2.CapitalAerospaceMachineryCo.,Ltd.:Beijing100076,China)Abstract:Toaccuratelymeasurethenoiseresponseinthethermalradiationzoneofthethermalacousticprogressivewavetube,anacousticwaveguidetestsystemwithaneffectivemeasurementfrequencyrangeof20-1000Hzwasdesignedbasedontheductacousticsandtheacousticfiniteelementanalysis.Verificationtestswerecarriedoutatroomtemperature.Theresultsshowthattheacousticwaveguidetestsystemmeetsthedesignindex,andthenumericalanalysismethodusedinthedesignstageiseffective.Finally,theenvironmentaladaptabilityoftheacousticwaveguidetestsystemwasevaluatedthroughthermalacoustictest,whichprovesthatthesystemcouldwithstandthethermalnoisetestenvironmentof700℃.Keywords:thermalacoustictest;noisemeasurement;acousticwaveguide;progressivewavetube;verificationtest收稿日期:2022-07-10;修回日期:2023-01-15引用格式:齐江龙,杨美宁,呙道军,等.基于声波导管的热辐射区域噪声测试技术[J].航天器环境工程,2023,40(1):69-73QIJL,YANGMN,GUODJ,etal.Technologyofnoisemeasurementinthermalradiationzonebasedonacousticwaveguide[J].SpacecraftEnvironmentEngineering,2023,40(1):69-73第40卷第1期航天器环境工程Vol.40,No.12023年2月SPACECRAFTENVIRONMENTENGINEERING69http://www.seejournal.cnE-ma...