Linear motor driven ship model forced rolling device

Abstract

The invention provides a forced rolling device for a ship model driven by a linear motor. The forced rolling device comprises a main body shell, a main body bottom plate, a stator, a sliding rail, a mover box, a mover, a loading sliding block, a main body cover plate and weights. A groove is formed in the uppermost surface of the main body shell, and the main body bottom plate is arranged on the bottom layer; the two I-shaped sliding rails are fixed along the long edges of the two sides of the main body bottom plate; the stator is longitudinally fixed on the main body bottom plate between the two sliding rails; the loading slide block is connected above the slide rail through the slide rail linking buckle; the main body cover plate is connected with the main body shell through an assembling bolt and passes through a gap of the loading sliding block; the mover box is fixed below the loading sliding block, the mover is fixed below the mover box, and a gap is formed between the mover and the stator; the mover box supplies power to the mover, a magnetic field is generated in a gap between the mover box and the mover box, and the load-carrying sliding block reciprocates on the sliding rail under the action of magnetic force; the weight is fixed in the weight box and then is fixed on the load-carrying slide block. The sliding block moves more accurately; the speed is high; the control torque is larger; the reliability is good.

Description

technical field [0001] The invention belongs to the technical field of ship experiment and testing, and in particular relates to a forced rolling device for a ship model driven by a linear motor. Background technique [0002] In order to study the motion response mode of the ship under different wave conditions, test the seakeeping of the ship, and carry out hydrodynamic experiments, it is often necessary to generate specific waves through wave-making equipment in the towing pool and interact with the generated ship model, thereby verifying through model tests real ship performance. However, such experiments are still limited to hardware. First of all, many towed pools do not have the function of making oblique waves. In the condition of simulating the ship model being subjected to oblique waves, the ship model can only be carried by a trailer to sail obliquely in head-on waves, and the effective voyage section of the ship model will be reduced in the test. For large-scal...

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Problems solved by technology

[0003] However, the existing forced rolling devices often use a motor-driven belt drive with a linkage mechanism of a cam and a crank connecting rod. The disadvantage of this method is that the structure is complex, and the accuracy of the traditional motor cannot be guaranteed. The inflection point in the movement will also cause stagnation, the overall mechanical efficiency is poor, and the accuracy is not high

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