Ship seaworthiness performance test system

Abstract

The invention discloses a ship seaworthiness performance testing system, which includes a ship seaworthiness tester set on a pool and capable of being dragged by a trailer, the ship seaworthiness tester includes a pair of column frames, and is arranged between the pair of column frames The beam frame, and the airworthiness test device and the following brake device located on the beam frame. The airworthiness test device uses the linear motor of the magnetic levitation principle as the control and measurement method, and under the condition of ultra-low damping, it measures the movement attitude and resistance increase of the ship model in waves under the condition of no other constraints except yaw and sway Happening. The following brake device utilizes the following principle of the linear motor, converts the movement of the pneumatic cylinder into mechanical clamping, and clamps and releases the track through the track clamp to achieve the start-stop control of the ship model in the waves. The invention realizes accurate measurement of the navigable state of the ship model in simulated waves.

Description

technical field [0001] The invention belongs to the technical field of ship testing, and in particular relates to a system for testing the heave, pitch, resistance, surge and roll of a ship model in waves to test the seaworthiness of the ship. Background technique [0002] With the continuous development and innovation of shipping technology, improving the accuracy of ship performance prediction is an important means of ship type development, and the accuracy of model tests directly affects the accuracy of ship performance prediction. Such testing techniques directly affect the accuracy of model tests and are an important basis for ship performance prediction. [0003] At present, there are mainly two types of model tests for ship models in waves, one is limited surge type, which does not reflect the real wave motion in the test, and the other is to provide ship model and measurement by stretching the springs at both ends. The force on the rod can achieve a certain degree o...

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Problems solved by technology

[0003] At present, there are mainly two types of model tests for ship models in waves, one is limited surge type, which does not reflect the real wave motion in the test, and the other is to provide ship model and measurement by stretching the springs at both ends. The force on the rod can achieve a certain degree of free surge, but the spring has elastic damping, which affects the vibration frequency and cannot reflect the real movement, which has a certain impact on the resistance measurement. control ship model

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