1、Padeye Strength Check CalculationPadeye Details 吊耳参数 Padeye thickness (t)吊耳厚度 20 mm Padeye outer radius 吊耳外圆半径 45 mm Hole size (）吊耳孔径 35 mm Width at base (W)吊耳根部宽度 120 mm Height of hole (h)吊耳孔高度 100 mm Material 材料 Q235 Shackle (selected by Owner)选用钢丝绳参数 Shackle WLL 钢丝绳额定载荷 4 T 2T OK!Pin Diameter (d)
2、 卸扣销子直径 32 mm Allowable Stress 许用应力 Yield point (y) 材料屈服极限 235 MPa Allowable shearing stress (0.4y) 许用切应力 94 MPa Allowable bearing stress (0.9y) 许用挤压应力 211.5 MPa Allowable combined stress (0.6y) 许用组合应力 141 MPa Design Load 设计载荷 SWL (Q) 额定载荷 2 T Force direction to horizontal plane () 载荷方向与水平面夹角 60 deg
3、ree Dynnamic load Factor (Sf)动态载荷系数 2.0 Design load on padeye (F=Sf*Q*9.81*1000)吊耳设计载荷 39240.00 N Vertical Force (Fv=F*sin()垂直载荷 33982.84 N In-plane horizontal force (Fh=F*cos() 16991.42 N Out-plane horizontal force (Fh0=0.05*9.81*Q*1000) 981.00 N Shearing stress (pin tearout) 剪切应力计算 Shear stress (f
4、v=F/(2*(R-0.5)*t)吊耳承受的剪切应力 35.7 MPa 94MPa OK!Bearing stress at hole 挤压应力计算 Bearing stress (fp=F/(d*t)吊耳承受的挤压应力 61.3 MPa 211.5MPa OK!Combined stress at base 吊耳根部综合应力计算 Tension stress (ft=Fv/(W*t)吊耳根部拉应力 14.2 MPa In-plane shearing stress (fv=Fh/(W*t) 7.1 MPa Out-plane shearing stress (fvo=Fho/(W*t) 0.41 MPa In-plane bending moment (M1=Fh) 1699141.8 N.mm Out-plane bending moment (M2=Fh0*h) 98100 N.mm In-plane bending stress (fa=M1/(t*W2/6) 35.4 MPa Out-plane bending stress (fa0=M2/(t*W2/6) 12.26 MPa Combined stress at padeye base (fmax=SQRT(ft2+fa2+fa02+3*(fv+fvo)2) 42.1 MPa 141MPa OK!
