CALCS BAS015
CATENARY ANALYSIS

NOTATION

Kstiffness
Lcable length (0 if not known)
P1 P2forces, at end points (P1=0 if not known at input)
theta1,2cable inclinations
wline force (weight per unit length)
X1,Y1coords of cable end point
X2,Y2coords of cable end point
x11,x21coords estimate (non-dimensional)
Xocatenary origin

APPLICATION

Chain, rope or cable with significant self weight, fixed at both ends

OUTPUT

connections forces

SEE ALSO

other progs & procs

THEORY

Newtons Method

GUIDANCE

The cable length L or force P1 must be non zero.
In the present formulation it is necessary to input estimates of the points X11 & X12 on the non dimensional catenary curve.
If the program fails, re-try with new estimates.

INPUT FORMAT

DAT015title
CaseX1Y1X2Y2x11x21LP1w
entertabdelimiteddata
ENDDAT

EXAMPLE

Input

DAT015example
CaseX1Y1X2Y2x11x21LP1w
10.430.410.850.690.40.805.332.5
ENDDAT

Output

OUTPUT
Casetheta1theta2P1P2XoLx1x2K
133.63233.7496675.86684.9-106.280.504780.623920.62637-0.037698
END015