声发射技术在航空领域的应用研究

(,264001),PTAE24A,RESEARCHONTHEAPPLICATIONOFAEINTHEFIELDOFAVIATIONZhangFenglinHanWeiHuGuocaiLiZishang(TheNavalAeronauticalEngineeringAcademy,Shandong)AbstractPTAE24AAEmonitorsystemwasdevelopedformonitoringthefatiguecrackpropagationonaircraftstructure.Andastudyonitspracticalapplicationwascarriedout.KeywordsAcousticemissionmonitorFatiguecrackAircraftstructure(AE),60,,,,[1],(FSMS)(IFCDS)70,,,,,,,PTAE24A,1,,;,,,AE4002B[2]1.130CrMnSiNi2A,Kaiser,:(1),,(2),(3),,,,30CrMnSiNi2A1.2Instron21341,12,,75122420004NDTVol.22No.4April2000©1995-2004TsinghuaTongfangOpticalDiscCo.,Ltd.Allrightsreserved.,[1],2.1mm,95.44%;2.67mm,100%,,,2PTAE-4A,,PTAE24A2.1(1),(2),(3)2.2AE(,)(1);;;AE,,;AE;1PTAE24AAE2.3,,;UCAE.EXE,AEUCAE.EXEDOSQUICKBASIC,2311000,,103(1651),Ê526,,;,,45min,3.1,,,103,,,3;,,45min,21mm,42UCAE.EXE851:©1995-2004TsinghuaTongfangOpticalDiscCo.,Ltd.Allrightsreserved.(a)(b)(c)30,1,S(47)3.2,,,,,==100%,,105;36dB(a)(b)(c)460103,1.45,0.48;11.211%,1.787[1],99.7%,2.90,16.572%,99.7%(CL1,CL2,CL3),;(LW),,2.900.5s-1,16.572%,,951:©1995-2004TsinghuaTongfangOpticalDiscCo.,Ltd.Allrightsreserved.()0.5s-1%0.5s-1%601.8313.8881.1511.2621.7011.3902.3113.1641.5012.1922.0313.3661.2610.4941.4012.5681.6511.9961.1511.6701.4412.3981.0810.9721.4611.61000.9510.2741.4211.61021.1210.3761.7610.71031.2210.2781.7811.1CL14.067.8801.3512.3CL24.1112.8820.726.9CL36.8413.1841.1311.8LW12.621.7860.786.24[2],1210(5),,,275()4.1,,,,,,(30dB)(6),,4.2,(a)(b)(c)6,7:(1)3000ömin,10500ömin(2)15dB,30dB,,,,5061:©1995-2004TsinghuaTongfangOpticalDiscCo.,Ltd.Allrightsreserved.(a)(b)(c)75.1(1),,(2)PTAE24A,(3)(4),(5),5.2,PTAE24A:(1),(2)AE,,AE,,()(3)(4),,1.:[].:,19962.:[].:,19943,,..:,1985.:1999204219(156),,,,,,1SchmidtTR..MaterialsEvaluation,1989,47(1):14-222MackintoshDavidDetal..MaterialsEvaluation,1996,54(6):652-657:1999201204161:©1995-2004TsinghuaTongfangOpticalDiscCo.,Ltd.Allrightsreserved.