Forced ship model rolling experiment device

An experimental device and rolling technology, which is applied in the field of ship model forced rolling experimental devices, can solve the problems of not satisfying the law of simple harmonic motion, and the wave peaks and troughs are not strictly symmetrical, so as to achieve a simple shape, reduce the experimental error value, and improve the experimental The effect of precision

Active Publication Date: 2014-10-29
HARBIN ENG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although the displacement of the slider along the slide rail has symmetry and periodicity, the peaks and troughs in the same period in the displacement curve of the slider with time are not strictly symmetrical, and do not satisfy the law of simple harmonic motion.

Method used

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  • Forced ship model rolling experiment device
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  • Forced ship model rolling experiment device

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Embodiment Construction

[0021] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0022] Such as figure 1 and figure 2 As shown, the present invention includes a fixing device 1 , a control and driving device 2 , a crank rail moving device 3 , a connecting rod driving device 4 and a data acquisition device 5 .

[0023] Such as image 3 Shown: the fixing device 1 is a steel frame structure, including a base plate 15 and a steel frame installed on the base plate 15. The steel frame includes a motor support and a linear guide rail support installed on the base plate 15 and is used to connect the base plate 15 and The support angle plate of motor support, base plate 15 and linear guide rail support, base plate 15 is a common carbon steel base plate 15, and motor support comprises four vertical channel steels (No. 1 vertical channel steel 17 two pieces, No. 2 vertical channel steel Two straight channels 18), two upp...

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Abstract

The invention provides a forced ship model rolling experiment device which comprises a fixing device, a control and drive device and a data acquisition device. The fixing device comprises a base plate and a frame installed on the base plate and further comprises a crank guide rail moving device and a connection rod driving device. The crank guide rail moving device comprises a horizontal guide rail I, a horizontal guide rail II, a slide block I, a slide block II, vertical guide rails fixedly connected with the two slide blocks, vertical slide blocks matched with the vertical guide rails and cranks connected with the vertical slide blocks, wherein the horizontal guide rail I and the horizontal guide rail II are installed on linear guide rail supports, the slide block I and the slide block II are matched with the horizontal guide rail I and the horizontal guide rail II, and the middle positions of the cranks are connected with the control and drive device. The connection rod driving device comprises a push rod and a connection rod, wherein one end of the push rod is connected with the slide block I, the other end of the push rod is connected with the connection rod, and the lower end of the connection rod is connected with the data acquisition device. The forced ship model rolling experiment device is simple in structure, convenient to operate and easy to process and manufacture and used for experimental study of ship rolling hydraulic performance.

Description

technical field [0001] The invention relates to an experimental device, in particular to a ship model forced rolling experimental device. Background technique [0002] When a ship sails in a windy and wave environment, rolling motion is prone to occur, which has become one of the most concerned issues in ship design and navigation safety. Ship rolling motion is the most dangerous sway motion that poses the most dangerous threat to ship safety, and is the main cause of ship capsizing. Due to possible flow separation in the bilge, vortex shedding, and some nonlinear features, such as jumping, bifurcation, etc., it is a challenge to accurately predict the rolling characteristics of ships in waves. To accurately determine the roll damping, the most intuitive method is the ship model roll test. Setting up the ship model forced rolling experiment can not only directly determine the rolling damping of the ship, but also is particularly important for the teaching of professional k...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G09B23/08G09B23/12
Inventor 马山程锦段文洋郑兴
Owner HARBIN ENG UNIV
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