可靠性设计保障与试验(培训在线)-part1_PRN

ZZZPart1-1Zhangzengzhao(zzz)ZZZPart1-2ZZZPart1-37.17.27.37.47.57.67.77.87.97.107.117.127.137.148.18.2ESD1.2.3.4.5.HALT/HASS6.ZZZPart1-4Part1-4ZZZPart1-5ZZZPart1-6ZZZPart1-7(1)(2)(3)(4)ZZZPart1-8ZZZPart1-93R(t)•“”•R(t)=P(Tt)•P(Tt)TtZZZPart1-1042.012712)(=-=tRZZZPart1-11(4)F(t)•tT()()F(t)F(t)=P(Tt)ZZZPart1-12•000)()()()()()(NtNNNtNtNtNtNtFsffsf-==+=N0(4.03.0)(+-=NitFiZZZPart1-13•R(t)+F(t)=1(-3)•N0tZZZPart1-14(5)f(t)N0Nftt+tNf(t)(N0t)tt+t()N0t0dtdNNtffN01lim)(0∞→=ZZZPart1-15(6)(t)(t)ttt(t)••dNf(t)dtdttdNtNtfs)()(1)(=lZZZPart1-16•••ZZZPart1-17ZZZPart1-18ZZZPart1-19•∫∞∞-=dtttftE)()(ZZZPart1-20(8)MTBF•MTBF(Meantimebetweenfailure)∫∞=0)(dttRMTBFT1F1T2F2Tn-1Fn-1TnFnZZZPart1-21•MTBF••ZZZPart1-22•“•ZZZPart1-23•ZZZPart1-24•ZZZPart1-25(9)MTTFMTTF(Meantimetofailure)(-9)∫=xdtttfMTTF0)(ZZZPart1-26•(t)=R(t)=e-tll10==∫∞-dteMTTFtll10==∫∞-dteMTBFtZZZPart1-27(9)----MTTR•(MTTR—MeantimetoRepair)(-17)•∫∞-=0)](1[dttMMTTRZZZPart1-28T1F1T2F2Tn-1Fn-1TnFn---MTTRMTTR=Fi/nZZZPart1-29ZZZPart1-30A(t)(-18)MTTRMTBFMTBFtA+=)(ZZZPart1-31MTTRMTBFMTBFA+=ClassesofHighAvailabilitySystemZZZPart1-32•9999.05.50005000)(==+=MTTRMTBFMTBFtADowntime0.88ZZZPart1-33ZZZPart1-34ZZZPart1-35•••••6RT—λFMEAFTAFRACASZZZPart1-36•••••ZZZPart1-371.4ZZZPart1-38•ZZZPart1-39rTMTBF/=tnT×=Tr0r=0.916.%r=2.3%r=1.6.%ZZZPart1-4014600h11426hZZZPart1-41Tr/=ltnT×=Tr0r=0.916.r=2.3r=1.6.ZZZPart1-42ZZZPart1-43ZZZPart1-44•ZZZPart1-45a.b.c.ZZZPart1-46•••ZZZPart1-47ZZZPart1-48ZZZPart1-49t(0t0)•ttetfll-=)(ZZZPart1-50f(t)tR(t)t(t)tll==)(/)()(tRtftZZZPart1-51(t0)(t0)ll==)(/)()(tRtfttetFtRl-=-=)(1)(tetFl--=1)(•MTBF••ZZZPart1-52•t0t()••“”ZZZPart1-53222)(21)(smsp--=tetfZZZPart1-54••••∫--=ttdtetF02)(2221)(smsp∫---=ttdtetR02)(22211)(smsp)()()(tRtft=lE(T)ZZZPart1-55•2ln2121)(⎟⎠⎞⎜⎝⎛--=smpstettf⎟⎠⎞⎜⎝⎛-Φ-=smttRln1)(22)(sm+=eTEE(T)ZZZPart1-56ZZZPart1-57•⎥⎥⎦⎤⎢⎢⎣⎡⎟⎟⎠⎞⎜⎜⎝⎛---=-bbhghghbtttfexp)()(1(t00)ZZZPart1-58⎥⎥⎦⎤⎢⎢⎣⎡⎟⎟⎠⎞⎜⎜⎝⎛-⎟⎟⎠⎞⎜⎜⎝⎛=-bbhhhbtttfexp)(1t0ZZZPart1-59•–••⎥⎥⎦⎤⎢⎢⎣⎡⎟⎟⎠⎞⎜⎜⎝⎛---=bhgttFexp1)(⎥⎥⎦⎤⎢⎢⎣⎡⎟⎟⎠⎞⎜⎜⎝⎛--=bhgttRexp)(1)(-⎟⎟⎠⎞⎜⎜⎝⎛-=bhghbltt⎥⎥⎦⎤⎢⎢⎣⎡⎟⎟⎠⎞⎜⎜⎝⎛--=bhttFexp1)(⎥⎥⎦⎤⎢⎢⎣⎡⎟⎟⎠⎞⎜⎜⎝⎛-=bhttRexp)(1)(-⎟⎟⎠⎞⎜⎜⎝⎛=bhhblttZZZPart1-60•3.5•1=11=1=01)(-⎟⎟⎠⎞⎜⎜⎝⎛=bhhblttZZZPart1-61⎟⎟⎠⎞⎜⎜⎝⎛+Γ+==bhg11)(TEMTTF⎟⎟⎠⎞⎜⎜⎝⎛+Γ==bh11)(TEMTTF=00hr=-1eZZZPart1-62ZZZPart1-63()•123n……ZZZPart1-64•-22•Rs(t)——Ri(t)——i∏==niistRtR1)()(ZZZPart1-65•-23•s——i——tiietRl-=)(ttnitssniiseeetRlll--=-===∑=∏11)(∑==niis1llZZZPart1-66•(-24)••Ri(t)1(-22)(-24)MTBFs∑===niissMTBF111llZZZPart1-67()12n7-11ZZZPart1-68•(-25)•Fs(t)——Fi(t)——i∏==niistFtF1)()()1(11111∏∏==--=-=-=niiniissrFFRZZZPart1-69,∫∞=0)(dttRsMTBF()nnnjijinijMTBFllllllLLp++-+++-=-≤≤=∑∑211111111∫∞---=0})1(1{dtentlllln1211+LLNZZZPart1-70nr(r1n)r/n•ZZZPart1-71nr(r/n)•n(-29)•n——r——rnrrnnnnnnnrniiininstRtRCtRtRCtRtRCtRtRtRCtR-----=--•++-•+-•+=-•=∑)](1[)()](1[)()](1[)()()](1[)()(222110LZZZPart1-72•r1r2r3rnZZZPart1-73ZZZPart1-74LCABZZZPart1-75(1R1=0.9R2=0.6R3=0.9RS=0.486R1R3R2R1R3R2R4R1=0.9R2&r4=R3=0.9RS=0.68ZZZPart1-76ZZZPart1-77•••ZZZPart1-78ZZZPart1-79•151510%MTBF1401/140=7.1410-3/8.1510-7/hZZZPart1-802•15151%MTBF1001/100=110-2/1.1410-6/hZZZPart1-81ZZZPart1-82••ZZZPart1-831•••ZZZPart1-842X••--ZZZPart1-853•••ZZZPart1-86(4)••“”ZZZPart1-87(5)••ZZZPart1-88••ZZZPart1-89ZZZPart1-90••ZZZPart1-913•••ZZZPart1-923.1(1)--(2)--(3)--ZZZPart1-93(4)--(5)--GJB2291.51510ZZZPart1-943.2ZZZPart1-95ZZZPart1-963.3•••ZZZPart1-97•T⎥⎦⎤⎢⎣⎡-=kTEAdtdMexp⎟⎠⎞⎜⎝⎛+=Tba1lnqdM/dtAEkTTrrT,⎟⎟⎠⎞⎜⎜⎝⎛-=⎟⎠⎞⎜⎝⎛TTbrr11lnqqZZZPart1-98••PrPrPrP55•aqqq⎟⎟⎠⎞⎜⎜⎝⎛==rrPPAbabaqqq//22TTrrSPPAΔΔ•=•⎟⎟⎠⎞⎜⎜⎝⎛==SZZZPart1-99•:•••••ZZZPart1-1003.4••10%Vec60%ZZZPart1-101(•LCC10.10.30.5ZZZPart1-1023.5••ZZZPart1-103GJB299GJB299STZZZPart1-104TSb--lPMTbTSTTSTTNA⎥⎦⎤⎢⎣⎡•Δ++⎥⎦⎤⎢⎣⎡•Δ++=273exp273explZZZPart1-105•3-2ZZZPart1-106•TsTM(Tmax)Ts25TmaxTATCABAB•TSTMTmax••1752001501007025ZZZPart1-107•3-23-350%ZZZPart1-108•A——Q——R——ZZZPart1-1090.700.800.800.600.700.700.700.800.800.700.750.8080951050.700.800.800.700.800.800.700.800.800.700.750.8080951050.700.800.800.700.800.800.700.800.850.700.750.800.700.750.8080951050.700.800.85800.850.900.750.800.850.700.750.8080951050.800.900.900.800.900.90851001150.700.800.80MOS0.800.900.900.800.800.9085100115Wcm/27.5Wcm/26.085100115ZZZPart1-1104•••4-1ZZZPart1-111•ViVioViUViLVi=fhjhjZZZPart1-112•hjVi=fhjhjhj•Vinh1h2…hnViZZZPart1-113•••-------ZZZPart1-114•••ZZZPart1-1154.1•ZZZPart1-116•Vixjj=12…n•x1x2…xj…xn()njixxxxfV,,,,,21LL=ZZZPart1-117•4-1xj0nnjjixxfxxfxxfxxfVΔ∂∂++Δ∂∂++Δ∂∂+Δ∂∂≈Δ00202101LLjnjjixxVΔ∂∂≈∑=01Vixjxj0Sijxj0jiijxVS∂∂=0/jixV∂∂ZZZPart1-118•4-2Worst-CaseMethodZZZPart1-119•5•104-7•4-7'0/iiiVVΔ=h0/jjjxxΔ=h∑==njjijb1hhbijijijijSVxb⎟⎟⎠⎞⎜⎜⎝⎛=00ZZZPart1-120•4-1LL0=50HL10%C0=30pFC5%LCf=200KHz•4-12/31/34.9%ZZZPart1-1211LC21f=12601030105021f--×××=MHz4.11=20i/Vi=KHz200±=f=f/f0=4.9%3bijSijlnC21lnL212lnlnf---=21lnLlnfbL-=∂∂=21lnClnfbC-=∂∂=ZZZPart1-1224jj10%LL0±==5%CC0±==5CCLLfbb+=%9.4%5.71005211001021=•+•=6LC31:326.5%21324.9%L±=×±=′3.2%21314.9%C±=×±=′ZZZPart1-123ZZZPart1-124ZZZPart1-125••ZZZPart1-126–•ZZZPart1-127•91009009=+=+=LLRREI800%201000=±Ω=+LRR8.118005.9minmaxmax===RuIL25.612005.7min===RuImimLmim225.68.11max≈=L