沉淀池优化设计研究

西安理工大学硕士学位论文沉淀池优化设计研究姓名：刘振中申请学位级别：硕士专业：环境工程指导教师：白丹2004010120041BPHopfield,2OptimalDesignofSedimentationtanksMajorEnvironmentEngineeringData2004.1AuthorLiuZhenzhongSignatureDirectorBaiDanSignatureAbstractInthispaper,theproblemsofoptimaldesignofsedimentationtanksarestudiedbyadoptingtheoriesandmethodsofsystemengineeringtoseektheschemeoftheleastsedimentationtanksbuildingcostItissignificanttoreducesedimentationtankcostandwaterandwastewaterplantcostTheoptimaldesignsofhorizontalsedimentationtanksandplatedupflowsedimentationtanksaremadewhensedimentationdataisprovidedornotByBPneuralnetworkperfomingnonlinearmappingandcombiningregressionorthogonal,thesedimentationtankcostfunctionsaresetup,theobjectivesareprovidedThesedimentationtankdesignsaredemandedtomeettheefficiencyandthehydroliccondition,andtheparametersarecomfinedintherangeaccordingtothecriterion,sotheintegrateoptimaldesignmodelsaresetupTheHopfieldnetworkoptimalcomputationtheorycombiningsimulatingannealingisappliedinthispapertomakecaculationNonlineardynamicalsystemsofthenonlinearprogrammingmodelofthehorizontalsedimentationtanksandplatedupflowsedimentationtanksareseparatelyconstitutedandsolvedbysoftwaresimulationmethodwhichutilizedtheneuralnetworkdynamicalevolutionpropertyItiseconomicalandfeasibleinsuchmethodtogainoptimaldesignofsedimentationtanksKeywords:horizontalsedimentationtankplatedsedimentationtankregressionorthogonaloptimaldesignmodelneuralnetwork111.11.1.110~40dm/350~100dm/3dm/310~40dm/3100dm/3112234123425%101.1.2360702030°Φ25Φ701.21.2.121234vButDvvvQAutu0u0utu0LCHQv1-1Av0u0u0u0uqAQLBvHBLvHu====0(1-1)qQBLH0uut%dp,%/0dpuut,0udpuuopt∫00/1,dpuupopt∫+−=000/11ηCamp(1946)100uη51.2.2a.[2]qb.[2]1.2.36Bhargawa18(1989)Bhargawa(1-2)mF0E10%uN60%0ESan13(1989)Eckenfedler14(1966);O’ConnorandEckenfedler15(1961);ZanoniandBlomquist16(1975)bkbTaHTP+=(1-3)++++−+++−++−+=Λ)13)(12)(11()1(!3)12)(11()1(!2)11()1(!113020100kkkPkkPkPPR(1-4)THRa,bkP01-3271988003)809.2627.4lnexp(ln)036.210186.3(exp1))712.44881.177(1uNENNFuuum+++×++=−7291993281994301995242519971.2.41)QVt=0(1-5)0thV3mQhm/382)a.Dobbins37(1943),Camp10(1946)Camp10(1946)El-Baroudi381969andTakamatsuetal39(1974)Taylor401954BaroudiCampTaylorTakamatsu,etalCampTakamatsu,etalCampTakamatsu,etalOstendorf22(1987),Ostendorfb.Ostendorf2219879strongmildRRmildRR=mildstrongRRstrongRR=)21(1λλ−−=vwierfcRmild)exp(1vwRstrong−−=(1-6)849.03/1})]1([{2)(−=sgwLhvwν(1-7)w—m/sv—m/sλ—g—m/s2s—h—mL—mν—m2/sR—mildR—strongR—Ostendorfc.1JinGuo43(2000)JinGuo102Swamee,Tyagi211996Camp(1946)StokesRouseSwamee,Ojha44(1991)mDmdd/1*0)]1)(15.0[(η−+=(1-8)7/900])1([)1(51.3gDskdvgDskdQB−−=(1-9)7/20])1([13.5vgDskdkDL−=(1-10)*d—0d—,mmm—n—Dη—k—0.5~0.8B—,m1.2.556199755199411541996571994[59(1995)536019992002Re≤1301.2.6786720026%12)2.0/065.0exp(..maxminmaxminmaxminLHrMLrHHHtsAMinC−=≤≤≤≤≤≤=ηηηηαβ(1-11)C—αβ—H—mmaxmin,HH—L—mmaxmin,rr—M—mη—maxmin,ηη—AhmetDemlr64)50.1896203.510434.000061204.0()65.175670.917306.000097963.0()928.458959.2053809.00003213.0(230232023+−+−+−+−++−+−=θθθθθθθθθηuu1-12η0uθ1.2.767131),(ηQfC=)(QfC=QηC23βαCYc=cYCαβ42121ββααAAC+=CA2121,,,ββαα141.2.845,70a.()b.c.()d.(ANN)15e.,GA,,1962,MichiganJ.H.HollandGA,60DarwenMendelGA,(),,,1.31.3.11.3.2a.BP16BPBPBPb.c.1.3.31722.1BPBPBP2.24,5p∑∑∑==+++=pjjjjpjijiijjpjjxbxxbxbby1210)(2-1)180bjbijbjjbixjxy)pN02mpmNc++=(2-2)cm+1-12p,2p-1,2p-2p2pγγγ0m2.2.1a.pjjjzz12,j=1,2,p)(0jzj∆19;2210jjjzzz+=;12γjjjzz−=∆(2-3)γb.∆−=jjjzzx0(2-4)2-12-1xjz1z2zpz21z22z2p1z01+1z02+2z0p+p0z01z02z0p+p1z01-1z02-2z0p-pz11z12z1pc.γ02mpmNc++=2.2.2A,BC20A=X’X=−pppppddddddN0011,1121ΟΟΟ(2-5)pjxdpjj,,2,1,2Λ==∑αjixxdjiij≠=∑,)(2ααα(2-6)2')(∑=ααjjjxd=−PPPPPBBBBBBBBΜΜΜ11,11210(2-7)∑=ααyB0αααyxBjj∑=(2-8)21jiyxxBjiij≠=∑,αααααααyxBjjj∑='==−−−−−−−−11111,112,11111001ppppddddddNACPpΟΟΟ(2-9)BAb1−=∑==ααyyNb1'0∑∑==ααααα2)(jjjJjxyxdBb∑∑==ααααααα2)(jijiijijijxxyxxdBb(2-10)∑∑==ααααα2'')(jjijIJjjxyxdBb2-2222-2FpxxΜ11211/dBQ=ΜpppdBQ/2=1Μ11QΜpQeVQ/1ΜepVQ/21xxΜppxx1−1221212/dBQ=ΜppPPppdBQ,12,1.1/−−−=1Μ112QΜppQ,1−eVQ/12ΜePPVQ/,1−21xΜ2px1121111/dBQ=ΜppppppdBQ/2=1Μ111QΜppQeVQ/11ΜeppVQ/ppQQQS+++=Λ21122−=+pCffS/SSS−=22+−=pCNffSVe/=22)(1∑∑−=ααααyNyS1−=NfeVfS//2.32.3.14231232.3.21234EPAC,QβαQQC=)(,2.3.324BPL,BH,S=kHBLBL××++×)(2kHBLV×××=k1a.2000b.BPerrorbackpropagationsigmoidBP252-1,BP3iOjOkOijkAiWijBiVjkOk2-1BP32-1kO1)]exp(1[)(−−+==kkkeefO(2-11)knjjkjkVBeθ+=∑=1)]exp(1/[1jjgB−+=jijiijWAgγ+=∑,,γ,iA,,BP,iA,kO,kt,)(')(kkkkefOtd−=(2-12))()('jkkjkjgfdVb∑=(2-13)26jkjkBdVα=∆kkdαθ=∆ijijAbWβ=∆jjBβγ=∆(2-14)0,1.,,,,1BP1268)10~1(=++=aamnJ(2-15)Jnm3~122~203SigmoidTansigPurelinLevenbergMarquardt,[57]21sigmoid010~101270.1~0.9BPXmin,Xmax)/()(8.01.0minmaxminXXXX−−×+=γ(2-16)8.0/)]/()1.0[(minmaxminXXXX−−+=γ(2-17).210.5%2-3m2m3%1198.8106.5612.2110.1000.1000.1030.09419.91918.772242.1181.4411.4960.1090.1080.1000.110114.195-23.483551.44540.5440.3880.1710.1450.2080.22845.784-13.364637699.242.8310.1880.1610.2170.22845.811-6.965490548.850.7830.1590.1450.2470.22143.91413.5366