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ID:47942677
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时间:2019-11-09
《API 吊耳强度计算公式》由会员上传分享,免费在线阅读,更多相关内容在行业资料-天天文库。
1、PadeyeStrengthCheckCalculationPadeyeDetails吊耳参数 Padeyethickness(t)吊耳厚度20mm Padeyeouterradius®吊耳外圆半径45mm Holesize(φ)吊耳孔径35mm Widthatbase(W)吊耳根部宽度120mm Heightofhole(h)吊耳孔高度100mm Material材料Q235 Shackle(selectedbyOwner)选用钢丝绳参数 ShackleWLL钢丝绳额定载荷4T>2TOK!PinDiamete
2、r(d)卸扣销子直径32mm AllowableStress许用应力 Yieldpoint(δy)材料屈服极限235MPa Allowableshearingstress(0.4δy)许用切应力94MPa Allowablebearingstress(0.9δy)许用挤压应力211.5MPa Allowablecombinedstress(0.6δy)许用组合应力141MPa DesignLoad设计载荷 SWL(Q)额定载荷2T Forcedirectiontohorizontalplane(θ)载荷方向与
3、水平面夹角60degree DynnamicloadFactor(Sf)动态载荷系数2.0 Designloadonpadeye(F=Sf*Q*9.81*1000)吊耳设计载荷39240.00N VerticalForce(Fv=F*sin(θ))垂直载荷33982.84N In-planehorizontalforce(Fh=F*cos(θ))16991.42N Out-planehorizontalforce(Fh0=0.05*9.81*Q*1000)981.00N Shearingstress(pintear
4、out)剪切应力计算 Shearstress(fv=F/(2*(R-0.5φ)*t)吊耳承受的剪切应力35.7MPa<94MPaOK!Bearingstressathole挤压应力计算 Bearingstress(fp=F/(d*t)吊耳承受的挤压应力61.3MPa<211.5MPaOK!Combinedstressatbase吊耳根部综合应力计算 Tensionstress(ft=Fv/(W*t)吊耳根部拉应力14.2MPa In-planeshearingstress(fv=Fh/(W*t))7.1MPa O
5、ut-planeshearingstress(fvo=Fho/(W*t)0.41MPa In-planebendingmoment(M1=Fh)1699141.8N.mm Out-planebendingmoment(M2=Fh0*h)98100N.mm In-planebendingstress(fa=M1/(t*W^2/6)35.4MPa Out-planebendingstress(fa0=M2/(t*W^2/6)12.26MPa Combinedstressatpadeyebase(fmax=SQRT(ft^2
6、+fa^2+fa0^2+3*(fv+fvo)^2)42.1MPa<141MPaOK!
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