機械配件軸承6203ZZ/RS電動車專用軸承

4.1約束條件 
西力軸承
聯(lián)系人：馬耿松
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(1)球直徑的選取應(yīng)符合經(jīng)驗取值范圍




式中Kdmin=0.45；Kdmax=0.60。 


(2)為了便于裝配，鋼球數(shù)和球徑應(yīng)滿足填球角的要求




(3)鋼球中心圓直徑滿足約束0.495(D+d)≤Dm≤0.515(D+d) 
(4)內(nèi)外圈溝曲率半徑應(yīng)不小于0.51×Dw，不大于0.60×Dw 
其中0.51≤fi≤0.60；0.51≤fe≤0.60 


4.2設(shè)計變量 


目標函數(shù)中取5個設(shè)計變量X1=Dw；X2=Z；X3=Dm；X4=fe；X5=fi 
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