*BARPRO

Data format:

An arbitrary number of lines with up to 20 values each ('&' character included)

IPRO XL XM D CD CM CDL CML ES NBVALA &
e1 Force1 ... eNBVALA ForceNBVALA CL
...

Status:

Mandatory when bar elements are used

Purpose:

To define mechanical and geometrical properties of a set of bar elements

Restriction:

The total number of bar element properties sets is limited to MAXPRO (version dependent)

Details :

Parameter	Description
IPRO	Identification number of the following set of properties
XL	Bar length. If XL is set to 0. XL will be the distance between the nodes of the bar
XM	Mass per unit length of bar
D	Outer diameter of the bar used for buoyancy and hydrodynamic forces calculations
CD	Morison drag coefficient in the direction orthogonal to the bar
CM	Morison inertia coefficient in the direction orthogonal to the bar
CDL	Longitudinal drag force coefficient (see note)
CML	Longitudinal added mass and wave inertia force coefficient (see note)
ES	Mechanical cross section of the bar
NBVALA	= 0 if ES is different from 0 = number of couples (e,Force) defining a multi-linear axial stiffness behaviour NBVALA must be lower than 10
e1 Force1	Strain and force parameters No. 1 defining the multi-linear axial stiffness behaviour
...
ei Forcei	Strain and force parameters No. i defining the multi-linear axial stiffness behaviour
...
eNBVAL ForceNBVAL	Strain and force parameters No. NBVAL defining the multi-linear axial stiffness behaviour
Cl	Lift coefficient (to be used in conjunction with *LIFTOPTION

Note

To define a variable stiffness, the couples (axial strain e, force) must be given in increasing order of the strain

Example :

*BARPRO

c [.] [m] [kg/m] [m] [.] [.] [.] [.] [N]

1 0.0 .11107e+02 .02648 .65 1.8 0. 0. 10.

The length of the bar is not defined. It will automatically be equal to the distance between the nodes in their initial positions.