4.2.5.12. Appendix D. List of Output Channels

This is a list of all possible output parameters for the SubDyn module. The names are grouped by meaning, but can be ordered in the OUTPUT CHANNELS section of the SubDyn input file as the user sees fit. \(M \alpha N \beta\), refers to node \(\beta\) of member \(\alpha\), where \(\alpha\) is a number in the range [1,9] and corresponds to row \(\alpha\) in the MEMBER OUTPUT LIST table (see Section ) and \(\beta\) is a number in the range [1,9] and corresponds to node \(\beta\) in the NodeCnt list of that table entry.

Some outputs are in the SS reference coordinate system (global inertial-frame coordinate system), and end with the suffix ss; others refer to the local (member) reference system and they have suffixes “Xe”, “Ye”, or “Ze” (see Section 7).

Table C-1. List of Output Channels.

Channel Name(s)

Units

Description

Base and Interface Reaction Loads

ReactFXss, ReactFYss, ReactFZss,

ReactMXss, ReactMYss, ReactMZss,

(N), (N), (N),

(Nm), (Nm), (Nm)

Total base reaction forces and moments

at the (0.,0.,-WtrDpth) location in SS coordinate system

IntfFXss, IntfFYss, IntfFZss,

IntfMXss, IntfMYss, IntfMZss,

(N), (N), (N),

(Nm), (Nm), (Nm)

Total interface reaction forces and moments

at the TP reference point (platform reference point) location in SS coordinate system

Interface Kinematics

IntfTDXss, IntfTDYss, IntfTDZss,

IntfRDXss, IntfRDYss IntfRDZss

(m), (m), (m),

(rad), (rad), (rad)

Displacements and rotations of the TP reference point

(platform reference point) location in SS coordinate system

IntfTAXss, IntfTAYss, IntfTAZss,

IntfRAXss, IntfRAYss IntfRAZss

(\({m/s^2}\)), (\({m/s^2}\)), (\({m/s^2}\)),

(\({rad/s^2}\)), (\({rad/s^2}\)), (\({rad/s^2}\))

Translational and rotational accelerations of the TP reference point

(platform reference point) location in SS coordinate system

Modal Parameters

SSqm01-SSqm99

(-)

C-B modal variables (up to first 99)

SSqmd01-SSqmd99

(1/s)

First time-derivatives of C-B modal variables (up to first 99)

SSqmdd01-SSqmdd99

(\({1/s^2}\))

Second time-derivatives of C-B modal variables (up to first 99)

Node Kinematics

\({M \alpha N \beta}\) TDxss,

\(M \alpha N \beta\) TDyss,

\(M \alpha N \beta\) TDzss,

Nodal translational displacements of \(M \alpha N \beta\)

(up to 81 designated locations) in SS coordinate system

\({M \alpha N \beta}\) RDxe,

\({M \alpha N \beta}\) RDye,

\({M \alpha N \beta}\) RDze

(rad)

Nodal rotational displacements of \(M \alpha N \beta\)

(up to 81 designated locations) in member local coordinate system

\({M \alpha N \beta}\) TAxe,

\({M \alpha N \beta}\) TAye,

\({M \alpha N \beta}\) TAze

(\({m/s^2}\))

Nodal translational accelerations of \(M \alpha N \beta\)

(up to 81 designated locations) in member local coordinate system

\({M \alpha N \beta}\) RAxe,

\({M \alpha N \beta}\) RAye,

\({M \alpha N \beta}\) RAze

(\({rad/s^2}\))

Nodal rotational accelerations of \(M \alpha N \beta\)

(up to 81 designated locations) in member local coordinate system

Node Forces and Moments

\({M \alpha N \beta}\) FKxe,

\({M \alpha N \beta}\) FKye,

\({M \alpha N \beta}\) FKze

\({M \alpha N \beta}\) MKxe,

\({M \alpha N \beta}\) MKye,

\({M \alpha N \beta}\) MKze

(N),

(N),

(N),

(Nm),

(Nm),

(Nm)

Static (elastic) component of reaction forces and moments

at \(M \alpha N \beta\) along local member coordinate system

\({M \alpha N \beta}\) FMxe,

\({M \alpha N \beta}\) FMye,

\({M \alpha N \beta}\) FMze

\({M \alpha N \beta}\) MMxe,

\({M \alpha N \beta}\) MMye,

\({M \alpha N \beta}\) MMze

(N),

(N),

(N),

(Nm),

(Nm),

(Nm)

Dynamic (inertial) component of reaction forces and moments

at \(M \alpha N \beta\) along local member coordinate system