基于MATLAB遗传算法的汽车鼓式制动器多目标优化设计

2011123923MACHINETOOL＆HYDRAULICSDec.2011Vol.39No.23DOI10．3969/j.issn.1001－3881.2011.23.0262010－11－01SGXZD9902－10－109JT201。[e-mail]。MATLAB610039、、。MATLAB。。U463.5A1001－3881201123－091－3Multi-objectiveOptimizationDesignofAutoDrum-fashionedBrakeBasedonGeneticAlgorithmofMATLABYANGRenhuaSchoolofTransportationandAutomotiveEngineeringXihuaUniversityChengduSichuan610039ChinaAbstractAimingattheautobrakedrumwiththeobjectiveofmaximizingtheefficacyfactorofthebrakeminimizingtheheatofrubsurfaceduringbrakingandminimizingthevolumeofbrakingdrummulti-objectiveoptimizationdesignweremade．TheoptimalobjectivefunctionwasestablishedbyusingthepenaltyfunctiontheoptimalsolutionwasfoundbyusingtheMATLABgeneticalgorithmoptimizationtoolboxanditwasverifiedbyanexample．Theresultshowsthatthisoptimizationmethodispracticalandreasonable．KeywordsMulti-objectiveoptimizationGeneticalgorithmBrakeObjectivefunction、。、。ABS、EBD。700℃。。。。、MATLAB。11。1P。“”。－1、。22－。F01F02。F1R1。δ1xF1。α'βF01F02acc'。21α'β2。2.1XT=x1x2x3x4x5x6x7x8x9x10x11=α'βb1Rc'cab2edpα'βb1Rcc'ab2edp。2.2、。。2.2.11K=MμFR1MμFR1。K1=fa+cc'cosδ1+fsinδ1－fR1K2=fa+cc'cosδ2+fsinδ2－fR2R1=R2=4Rcosα'－cosα'+βcos2α'－cos2α'+β2+2β－sin2α'+β+sin2α'槡2δ1=δ2=arctancos2α'－cos2α'+β2β－sin2α'+β+sin2α[]'f。K=K1+K2f1X=K1+K22.2.2V=πb2R+e2f2X=πb2R+e22.2.3700℃。、2f3X=c1t6t－10c2t2+4c3t312tt=v0φg1－sv0φsgc1=1/48·kp·r·A1·α12·f·π·d2·p·ρ·1－γ0c2=fπd2pR1mrv0c3=c22kprA1=b1Rβπ180αγ0。·29·392.2.4fX=ω2f2X+ω3f3Xf1Xω2、ω3。2.31g1X=f－c'cosδ1R1－c'sinδ1＜02。g2X=πd2pa+cR1b1R2cosα'－cosα'+βc'cosδ1+fsinδ1－fR1－1.6≤03g3X=c'βa+csinβ2－2≤04。g4X=mv028tβRb1－1.9≤05g5X=6.64×10－5×1－smv0A1－1.3×105≤06g6X=mv202gnρ'JR+e2－R2b2－150≤0nJ。7g7X=p－12≤0pMPa8、33.12060MichiganJohnHolland。“”“”“”“”、“”。1234567。3.2MatlabMatlab。Matlab。。1、r、csr1c120.001。2ΦXrk=fX+rk∑7j=1max0gjX23①functionM②mainM。43500kg215/70R150.343m80km/h0.4。12。97·39·23MATLAB3α=3°MKYM3.41466.96486.27496.9234K0.93131.14921.251.235Y3.18008.00387.85318.5503。。3SolidWorks4SolidWorks4。。【1】．J．1996329－34．【2】．J．1990647－54．【3】．J．20071114－115．【4】．D．2008．5．【5】．J．2010434－35．【6】．M．2005．4．【7】．M．2008．8．931/°/°/mm/mmc'/mmc/mm/mm/mm/mm/mm/MPa25105651801481401401006268.521.3120.375.1183.2132.2127.2157.3103.35.523.57.42/℃/mm32.5657310868653.93.8841111549781.6。。51－2Matlab。【1】．M．2006．1．【2】．J．2007125－26．【3】．MATLABGAOTJ．20061269－71．【4】．M．2004．1．·79·23