Skip to content

Home > List of Keywords > *BCREFPF

*BCREFPF

Data format:

One line with 13 parameters as follows:

IREF NOE ENCAS PSI \(u_1(1) u_1(2) u_1(3) u_2(1) u_2(2) u_2(3) u_3(1) u_3(2) u_3(3)\)

Status:

Optional

Purpose:

To define a reference frame \((\vec{u}_1, \vec{u}_2, \vec{u}_3)\) connected to a Floating production facility (FPF).

Restriction:

NOE must belong to a FPF

Details :

Parameter Description
IREF Identification number of the reference. IREF may be defined by introducing \(\vec{u}_3\) orientation through the ENCAS and PSI parameters. If ENCAS and PSI are null, IREF may be defined by at least one of the three vectors : \(\vec{u}_1, \vec{u}_2\) or \(\vec{u}_3\)
ENCAS Angle in degrees of \(\vec{u}_3/Oz\) (rotation around -y) in the corresponding FPF local reference (G,x,y,z)
PSI Aangle in degrees of \(\vec{u}_3/Ox\) (rotation around z) in the corresponding FPF local reference (G,x,y,z)
u1(1) X-coordinate of the local 1 axis \(\vec{u}_1\) expressed in the corresponding FPF local reference (G,x,y,z)
u1(2) Y-coordinate of the local 1 axis \(\vec{u}_1\) expressed in the corresponding FPF local reference (G,x,y,z)
u1(3) Z-coordinate of the local 1 axis \(\vec{u}_1\) expressed in the corresponding FPF local reference (G,x,y,z)
u2(1) X-coordinate of the local 2 axis \(\vec{u}_2\) expressed in the corresponding FPF local reference (G,x,y,z)
u2(2) Y-coordinate of the local 2 axis \(\vec{u}_2\) expressed in the corresponding FPF local reference (G,x,y,z)
u2(3) Z-coordinate of the local axis \(\vec{u}_2\) expressed in the corresponding FPF local reference (G,x,y,z)
u3(1) X-coordinate of the local 3 axis \(\vec{u}_3\) expressed in the corresponding FPF local reference (G,x,y,z)
u3(2) Y-coordinate of the local 3 axis \(\vec{u}_3\) expressed in the corresponding FPF local reference (G,x,y,z)
u3(3) Z-coordinate of the local 3 axis \(\vec{u}_3\) expressed in the corresponding FPF local reference (G,x,y,z)

Note

IREF must not be used for any other reference frame defined with BCREFGLO, BCREFLOC or *BCREFPF Let n be the built-in vector :

$$ \vec{n} = \begin{pmatrix} -\sin(ENCASD)\cos(PSID) \ -\sin(ENCASD)\sin(PSID) \ \cos(ENCASD) \end{pmatrix} $$