This method is used to compute the sectional Froude-Krilov and diffraction forces for arbitrary wave angles. Other methods, presented below have additional assumptions that make them simpler and quicker to compute.
Following the work of Salvesen et al. (1970), the global exciting force and moment for arbitrary wave heading are given by:
|
z |
( 24 ) |
|
|
( 25 ) |
where:
|
|
is the sectional Froude-Krilov force. |
|
h3 |
is the sectional Diffraction force. |