In this water tank,motions of ships and floating structures on calm water and on waves are checked and hydrodynamic forces acting on ship are measured by using ship-models. Experiments in shallow water and in restricted water are carried out.
This water tank has a wave generator which can work in arbitrary water depth and a towing carriage which equips 2 sub-carriages making possible to move laterally and vertically.
|Towing Carriage||speed range : 0.02m/s-2.00m/s
electric motor power : 7.5kW×4
speed control : automatic,semi-automatic,manual
|Sub-Carriage||lateral line movement : ±2.5m
max speed : 0.13m/s
vertical line movement : 0.60m-2.00m above tank bottom
|Wave Generator||see below|
|Observation Window||side window(2.0mW×1.0mH)|
This equipment can generate waves regardless of water depth without any adjustment.
|Type||piston type driven by oil pressure|
|Electric Motor Power||15kW|
of Oil Pressure Cylinder
|Maximum Wave Height||0.4m|
|Kind of Wave||regular wave,irregular wave(controlled by computer)|
Ship motions derived by wind and aerodynamic forces acting on ship are studied by using ship-models.
|Wind Generator||wind speed : max. 8.0m/s
duct dimensions : 1.9mW×0.4mH×3
wind speed adjustment : inverter control of electric motor, butterfly valve
electric motor power : 30kW
|Observation Wind||side window : 1.0mL×0.5mH|