# Towing Tank

In the towing tank, models of ships or offshore structures
are towed by a towing carriage for motion and hydrodynamic
forces to be measured. A wavemaker is at the one end of the
tank to realize phenomena in waves. A triming tank is at the
other end to set models. The tank is partially 10m in breadth.

### Tank Dimensions

- Main Tank : 80m x 8m x 3.5m + 20m x 10m x 3.5m
- Trimming Tank : 3m x 3m x 1m + 3m x 1m x 1m

(Length x Breadth x Water Depth)

The carriage towing models runs on the rails lying on both sides of the tank.
The carriage speed can be controlled arbitrarily by an external signal.
The breadth of the measuring open space is adjustable.

- Length x Breadth : 8.061m x 9.0m
- Weight: 20ton
- Controllable Maximum Speed: 3.0m/sec.
- Acceleration: +-0.01G ~ +-0.08G(adjustable)
- Driving Moters: 15kW x 4

Equipped to the towing carriage, the subcarriage moves laterally
and rotates to realize an arbitrary planar motion cooperating
with the towing carrage.

- Speed : 0.0 ~ 0.7 m/sec.
- Angular Acceleration : 15 deg/sec.
- Driving Motors : Transverse 2.2 kW x 2 / Rotation 0.75 kW x 2

To simulate ocean waves the wavemaker generates regular and irregular waves
with a prescribed wave spectrum. It is a plunger type and driven electically.

- Possible Wave Length : 0.4 ~ 24 m
- Maximum Wave Height : 0.4m
- Driving Motors : 10kW x 2

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