17 Underwater Noise Study Toward Propeller Rotation
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Fig. 17.11 Depth of measuring device vs size of propeller at 900 rpm with 0 mm vertical center
position of measuring device and 200 mm horizontal position of measuring device
ensure the data gathering and data analyzing is smooth and to avoid any unwanted
interference during the experiment. The parameters that affect most the underwater
noise level are the speed of the propeller rotation, number of propeller blades and size
of the propeller is affecting the noise level while the distance between the horizontal
and vertical position of the measuring device between propellers and the depth of
measuring device has an effect in determining the underwater noise level.
Last but not least, this experiment is considered successful in achieving its objectives, which is to design an experiment regarding the noise level generated by the
propeller rotation. The experimental setup was successfully fabricated with the materials and equipment selected in Sect. 17.2 and following the design to ensure that this
experiment works well. Next is to analyses the noise level generated from the rotation of the propeller. The result of this experiment can be found in Sect. 17.3 where
the graphs are plotted to show the comparison within the parameters and limitation
of the experiment. This experiment is conducted with affordable costs with all the
selected materials and design needs.