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1、31null82010M8NNVChinese JournalofScientific InstrumentVolnull31 Nonull8Aug. 2010nulll: 2009-07null null ReceivedDate: 2009-07null *:SE1S( 50775198)a81S(E2008000812)SVM#pZE*姜万录1, 吴胜强1, 2( 1nullvnullUnull 066004; 2null 0,5Ab!m1,m2, null,mnBMYOnullVs,massfm: 2null null 0, 1/:m (A) =0, null A = nullnull
2、AinullBjnullCknullnull=Am1 (Ai )nullm2 (Bj )nullm3 (Ck ) null null1- nullA inullBjnullClnullnull= nullm1(Ai) nullm2 (Bj )nullm3 (Ck )null null,A null null(4)T: AiaBjaCkanullb3. 2nullsE?5T( 4),1nE,Oy0V?|m,91HWT(mn) ,?CS.n1,|4L=b/sE13b1740nullNnullnullNnullVnullnull3 1n.HMYBSf,L!MYTmV?,SV?m,5BPAVn nul
3、lmVU:M =M1M2nullMn=m11 m12 null m1mm21 m22 null m2mnull null null nullmn1 mn2 null mnm( 5)T:MBmijVUi.SjBPAbB.smV?MYTBPA1,BBBHq,:mi1 +mi2 + null+ mim = 1; i = 1, 2, null, n ( 6)B6BMBm nullmR:R = MTi nullM j =mi1 nullmj1 mi1 nullmj2 null mi1 nullmjmmi2 nullmj1 mi2 nullmj2 null mi2 nullmjmnull null nul
4、l nullmim nullmj1 mim nullmj2 null mim nullmjm( 7)T:L.SMYmassfYy0,dL9y0b:K = nullpnull qmip nullmjq(p, q= 1, 2, null,m) ( 8)Emm3U,EBQVm_Bm_E,91HWT(m2 ),T1HWT(m2 null n),nL1bm3nullEFig. 3 Flow chart of fusion arithmetic4null SVMsBPAd4. 1null SVMsBPASSVM 1, - 1,q,?TBPAbSVM#pTBs5, nullBBnull_%N5rZTB,gE
5、#pTbl.,MYOnull = Fs,s= 1, 2, null, t,nullBBnull_B,|9V(Fs)9t(t- 1) /2T1Vq,N,/sf:ml(Fs) = 2V(Fs)t(t- 1),A null null, s= 1, 2, null, t (9)(.)#p,5qKvx#p;(.)#p,5nullBBnullSVMqBb4. 2nulldSVM#pdYV!.|T#pb.|lo.,4|#p+,nullBBnull_8BMYOs,K#p%bdm4Ubm4nulldFig. 4 Schematic diagram of fusion fault diagnosis system
6、5nullk5. 1nullkdSVM#pZEr,_,MCY14-1BTkb4A,?#pnull nullnull(f1 )a8(f2 )a8(f3 )a(f4 )T#pbNH,MYOnull = f1, f2, f3,f4, norm ( norm)bA,#p,PCI-60245B.B.,sY_,MCY14-1B-g|null8c:SVM#pZE1741null,m5Ubm5nulldFig. 5null Schematic diagram of the data acquisition systemA,#p,_|c.2,yN4+4|blo 14?HH|s,rus|lMs.2,db5lo.|
7、Blos,7%(d1d6)#/(a6)?,Hlo.4|oSSaSCraSIaLJSK5H+,|12+BBTSVMb5. 2nullkE(f1 )a8(f2 )T$#p,10MPaH|150F(f1af2norm50F,OXBB),|bWs(cf1af2norm25F)k(cf1af2norm25F),L|sYk_sbNbW.4sf1af2normV1 3UbV1nullsTable 1null Some samples in normal statusd1 d2 d3 d4 d5 d6 a6 S Cr I L K1 0. 290 4 0. 025 6 0. 034 1 0. 043 7 0.
8、569 7 0. 798 3 0. 240 0 0. 203 1 0. 411 0 0. 408 9 0. 417 5 0. 400 62 0. 413 8 0. 026 5 0. 005 9 0. 014 9 0. 783 4 0. 435 5 0. 255 4 0. 108 8 0. 274 3 0. 235 4 0. 264 7 0. 318 33 0. 344 1 0. 018 4 0. 009 3 0. 132 1 0. 918 9 0. 170 0 0. 277 7 0. 000 0 0. 320 0 0. 243 7 0. 283 3 0. 218 54 0. 454 0 0. 006 9 0. 011 9 0. 005 0 0. 818 8 0. 207 5 0. 446 6 0. 187 1 0. 420 9 0. 421 9 0. 423 2 0. 478 95 0. 567 3 0. 585 4 0. 167 4 0. 337 4 0. 326 3 0. 528 7 0. 867 1 0. 410 2 0. 450 5 0. 545 3 0. 507 1 0. 579 66
