Waves Sheet

Ship Data Dialog - Waves Sheet.

This enables the hydrostatics, stability and longitudinal strength in waves to be calculated.

Type

For still water calculations, you should select None. The two wave type options available are Sinusoidal and Trochoidal.

If either of the wave options are selected the other parameters are required in order to describe the shape and location of the waves. These are Height (equal to twice the amplitude), Length, distance of Crest from Pivot point (units of all 3 parameters: meters or feet), Direction angle to centerline (in degrees) and Tolerance (in meters or feet). The tolerance is the maximum error or distance from the true sinusoidal or trochoidal wave, allowed for any point on the wave profile.

Currently, selecting either Sinusoidal or Trochoidal only affects Hydrostatics, Curves, Loading Conditions and Deterministic Stability calculations. In other analyzes, the selection is ignored.

This wave data can be subsequently used for assessing the vertical bending moments and shear forces on the hull girder with the vessel statically balanced on either one or two waves, thus producing both hogging and sagging effects, and at a User-specified heading angle, as an extension to the normal still water condition.