CALCS PROC002
PLATE/CYLINDER SHEAR

NOTATION

alength, plate, parallel to force
bwidth, plate, normal to force
Rradius, cylinder
tthickness, plate
Pforce
MoMoment, about cyl centre
Pyforce, max line
Xpyposition, effective, lat force
Py1force, axial
Py2force, shear

APPLICATION

Cylinder fixed to two flat plates normal to the cylinder axis and subject to a transverse moment. This detail has been identified on the slewing column of jib cranes, forming the connection between the slew-ring cylinder and the slewing platform, supporting the jib heel and A-frame.

OUTPUT

Weld shear stress fixing cylinders to plates & in-plane stresses in plates

SEE ALSO

other porcs & progs

THEORY

refs

GUIDANCE

While the loading state is the most elegant possible, need further experience of application and FE results to build confidence of accuracy. Presently evaluated as conservative.

INPUT FORMAT

LET Nm=:Nk=:a=:b=:R=:t=:P=:PROC002

EXAMPLE

Call Statement

LET Nm=1:Nk=1:a=250:b=150:R=100:t=2.5:P=960:PROC002

Output

PROC002: PLATE/CYLINDER SHEAR: Rev Date: 190995
entertabdelimiteddata
Xpy= 2*PI*(-b/8+R/PI)= 82.19
Mo= P*(-b/8+R/PI)= 1.256E4
Py= P/(2*PI)= 152.8
Py1= Py*Xpy*4/(a+2*R)= 111.6
Py2= Py-Py1= 41.16
fd1= Py1*(2/(t*(a-2*R)))= 1.786
fs2= Py2*(2/(t*(b-2*R)))= -0.6586
UF= fd1/(Kd(Nk)*Fy(Nm))= 0.7616
UF= fs2/(Ks(Nk)*Fy(Nm))= -0.4843
END002