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Ship seaworthiness tester

A tester and ship technology, applied in the testing of machine/structural parts, instruments, ship parts, etc., can solve the problems of not reflecting real motion, affecting vibration frequency, resistance measurement effect, etc., achieving accurate positioning and ultra-low damping coefficient , the effect of reducing the range

Active Publication Date: 2017-08-11
SHANGHAI SHIP & SHIPPING RES INST
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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

Method used

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Embodiment Construction

[0037] Such as figure 1 and figure 2 As shown, the ship seaworthiness tester 300 includes a pair of column frames 310 , a first beam frame 320 , a second beam frame 330 , a seaworthiness test device 340 and a following braking device 350 .

[0038] Wherein, a pair of column frames 310 are arranged on both sides, the first beam frame 320 and the second beam frame 330 are installed between the upper parts of the pair of column frames 310, the first beam frame 320 is located below the second beam frame 330, the first Both the beam frame 320 and the second beam frame 330 are composed of a pair of parallel and spaced beams 801 .

[0039] The airworthiness test device 340 includes a first linear motor 3410 , a first sliding seat 3420 , a first movable column 3430 and a test head 3440 .

[0040] The first linear motor 3410 is installed on the first beam frame 320 , and the first sliding seat 3420 is installed on the first linear motor 3410 . Driven by the first linear motor 3410 ...

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Abstract

The invention discloses a ship seaworthiness tester which comprises the components of a pair of vertical column racks, crossbeam racks which are arranged between the pair of vertical column racks, a seaworthiness testing device and a following brake device which are arranged on the crossbeam racks. The seaworthiness testing device utilizes a linear motor according to a magnetic suspension principle as a controlling and measurement mode, thereby measuring the motion attitude and added resistance condition of a ship model in the wave at conditions of ultralow damping and no other restraining conditions except for yawing and swaying. The following brake device utilizes the following principle of a linear motor. Through converting pneumatic cylinder movement to mechanical clamping, and clamping and loosening a track by a rail clamp, the ship model is started and stopped in the wave. The ship seaworthiness tester realizes accurate measurement for the seaworthiness state of the ship in a simulated wave.

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...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B63B9/08G01M10/00
Inventor 马雪泉季盛文逸彦董国祥伍锐李传庆李建鹏吴静谢凤伟
Owner SHANGHAI SHIP & SHIPPING RES INST
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