MOTION RESPONSES OF THE H-TYPE FLOATING BREAKWATER SUBJECTED TO REGULAR WAVE

This study focuses on the hydrodynamics behaviour of a floating breakwater with taut-leg
mooring configuration. The aim of the study is to understand the motion responses of the Htype
floating breakwater on the motion responses of the floating breakwater that subjected to
the regular wave. This study focuses only on the heave, surge and pitch movement, whilst the
other motion responses were restricted. During the past studies of this H-float, small numbers
of tests were conducted due to budget and time constraints. The tests conducted were
confined to limited test ranges such as wave period, breakwater draft and also water depth.
To tackle this issue, thorough study has been carried out on the related subjects and also the
development of the previous floating breakwater. The model with a scale of 1:15 will be
tested in the 25 meter long wave flume with a total of 132 tests each for regular. Other
equipment that will be used in the test is wave paddle, wave probe, wave absorber, data
logger, and OPTITRACK. The variable parameters for this study include wave period, wave
height and breakwater draft. During the test, this model will be moored with taut leg mooring
system, in order to avoid excessive movement experienced due the wave actions. Finally, In
order to quantify the motion responses of the floating breakwater, the Response Amplitude
Operator (RAO) was utilized in this study. The RAO values for heave, surge and pitch
obtained in the study will provide an insight on the extent of the movement of the H-type
floating breakwater subjected to various wave condition.