Wave load self-propulsion ship model test protection device and use method thereof

Abstract

The invention relates to a wave load self-propulsion ship model test protection device and a use method thereof. The wave load self-propulsion ship model test protection device comprises a hydraulic rod; a pulley block is installed on one end of the hydraulic rod; the other end of the hydraulic rod is fixedly connected to a force sensor; one end of a pulling rope is fixedly connected to a trailer;the other end of the pulling rope passes through the pulley block, and is connected to a self-propulsion ship model; two pulleys are embedded in a hydraulic rod groove in parallel, so that a seamlesspulley block is formed; the protection device is additionally arranged at the front part and the rear part between the self-propulsion ship model and the trailer; when the trailer starts or decelerates to stop, the pulling rope is subjected to load force due to the inertial motion of the self-propulsion ship model; furthermore, load is applied onto the hydraulic rod through the pulley block; theforce sensor detects a load value, and sends the load value to a control computer; when the load achieves a set value, a hydraulic system starts; the self-propulsion ship model is tensioned by tightening the pulling rope; and the self-propulsion ship model gradually moves or stops along with the trailer. The wave load self-propulsion ship model test protection device disclosed by the invention issimple and compact in structure; the kinetic inertia force of the self-propulsion ship model is effectively buffered; and thus, security of a ship, equipment and a person in a test can be greatly ensured.

Description

technical field [0001] The invention relates to the technical field of self-propelled ship model test application, in particular to a wave load self-propelled ship model test protection device and a method for using the same. Background technique [0002] When a ship performs a wave load model test in a seakeeping tank, it is necessary to use a self-propelled model to provide corresponding power through the outside world to measure the wave load and six-degree-of-freedom motion attitude of the ship model. [0003] In the prior art, a trailer provides the power required for the self-propelled ship model in the test, and a traction rope is hung on the trailer, and the ship model is pulled by the traction rope to provide the power for the ship model to start and stop, and the start is controlled by manpower And the attitude of the ship model when parking. [0004] When the ship model is heavy, it will collide due to the action of inertial force when it starts and stops, which ...

AI Technical Summary

Problems solved by technology

[0004] When the ship model is heavy, it will collide due to the inertial force when it starts and stops, causing the shell of the ship model to break and enter the water, and damage the equipment, etc. If the traction rope is disconnected, it will easily cause personal injury , there is a great security risk

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