Wire rope drum calculation of hoisting device (Indoor EOC)

* Rated load : R =     ton

* Hook(attachment) weight : A =    ton

* Wire drum & wire rope weight : Dw =     ton

* No. of wire rope fall : N =     fall

* Wire rope reeving efficiency : Er =

* Wire drum india. : d1 =     cm

* Wire drum outdia. : d2 =    cm

* Wire drum thickness(shell) : H =    cm

* Wire drum groove pitch : Pi =     cm

* Wire drum overall length : DL =    cm

* Wire drum groove length(bearing side) : DL1 =     cm

* Wire drum groove length(reducer side) : DL2 =     cm

* Wire drum no groove length(center) : DL3 =     cm

* Used material(KS,JIS,ASTM,DIN,BS) :

* Yield strength : 𝞂y =       ton/cm2

 

* Wire rope force due to rated load & hook(attachment) weight

 

* Reaction force due to rated load & hook(attachment) weight

 

* Wire drum(shell) compressive stress

 

* Max. bending moment due to rated load & hook(attachment) weight

 

* Max. bending moment due to wire drum & wire rope weight

 

* Modulus of section

 

* Max. bending stress

 

* Equivalent stress

 

* Allowable bending stress

 

( Calculated value )

 

* Equivalent stress