*RIGIPRO

Data format:

An arbitrary number of lines from 8 values to 15 values each

IPRO XL THICK DR CD CM CDL CML DH DB IFA SUPM CMU DCAP CL

Status :

Required when beam elements are used when *BEAMPRO is not used

Purpose :

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

Restriction :

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

Details :

Parameter	Description
IPRO	identification number of the following set of properties (must be different than an IPRO of BEAMPRO and RIGIPRO)
XL	beam length. If XL is set to 0 XL will be the distance between the nodes of the beam [m]
THICK	thickness [m]
DR	beam diameter (Riser diameter) [m]
CD	Morison normal drag coefficient
CM	Morison normal inertia coefficient
CDL	Morison axial drag coefficient
CML	Morison axial inertia coefficient
DH	hydraulic diameter (if not present or negative, value is DR) [m]
DB	buoyancy diameter (if not present or negative, value is DH) [m]
IFA	Internal Fluid cross section Area used to calculate internal fluid mass (if not present or negative, value is internal riser cross section area) [m2]
SUPM	supplementary mass per unit length other than riser and internal fluid masses (if not present or negative, value is 0) [kg]
CMU	To define the shear stiffness (factor that multiplies the axial stffness default is 1)
DCAL	Diameter used to compute the end cap effect [m]
CL	Lift coefficient to be used in conjunction with *LIFTOPTION

Example :

*RIGIPRO

c[.]  [m] [m]  [m] [.]   [.]    [.]  [.]    [m]    [m] [m2]    [kg/m]
1  15.0  0.01905 .3776  0.7  2.0   0.  0. 0.66   0.66    0.3  70.0

Note

The stiffness (ES, EIY, EIZ and GCT) are calculated from E(MAT), n(MAT), THICK and DR.
The total mass is the mass of the cylinder calculated from THICK, D and SG (*MAT) + the supplementary mass SUPM. Morison forces are calculated with the CD, CM, CDL, CML and DH