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Marine dining table with six-DOF (degree of freedom) wave active compensation function and compensation method

A technology of active compensation and wave compensation, which is applied in the direction of engine room tables, ship accessories, and engine room furniture, can solve problems such as low precision, inability to compensate sway, surge, and yaw freedom, and achieve wide compensation range and high carrying capacity. Strong and stable effect

Active Publication Date: 2016-10-12
JIANGSU UNIV OF SCI & TECH
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Problems solved by technology

[0004] The existing tables with wave compensation function on ships are mainly divided into two categories: one is that the wave compensation platform is a passive compensation platform, which uses a spring damping system to compensate the sway and heave of the hull, which has low precision and serious hysteresis; The second is the conventional active compensation platform, which can only compensate the three degrees of freedom of the ship's roll, pitch and heave, but cannot compensate the three degrees of freedom of sway, surge and yaw

Method used

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  • Marine dining table with six-DOF (degree of freedom) wave active compensation function and compensation method
  • Marine dining table with six-DOF (degree of freedom) wave active compensation function and compensation method
  • Marine dining table with six-DOF (degree of freedom) wave active compensation function and compensation method

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Embodiment Construction

[0017] see figure 1 , the present invention comprises desktop 9, table foot 11, rotating platform 7 and wave compensating platform, and wave compensating platform is made up of upper platform 6, lower platform 1 and servo cylinder, and lower platform 1 is directly below upper platform 6, and lower platform 1 and The upper platforms 6 are parallel to each other, and the lower platform 1 is fixed on the deck of the hull by bolts. Both the upper platform 6 and the lower platform 1 are circular, and the outer diameter of the lower platform 1 is greater than that of the upper platform 6 . The rotating platform 7 is directly above the upper platform 6 and is parallel to the upper platform 6 . The rotating platform 7 is circular, and its center is connected to the upper end of the vertical transmission shaft 10. The lower end of the transmission shaft 10 is downward, protruding from the center hole of the upper platform 6 with a gap, and the lower end of the transmission shaft 10 is...

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Abstract

The invention discloses a marine dining table with a six-DOF (degree of freedom) wave active compensation function and a compensation method. The marine dining table is characterized in that a rotary platform parallel to an upper platform is arranged right above the upper platform, and a table top is fixedly connected right above the rotary platform through table legs; the center of the rotary platform is connected with an upper end of a vertical transmission shaft, the lower end of the transmission shaft extends out of a center hole in the upper platform with clearance and is coaxially and fixedly connected with an output shaft of a hydraulic motor; an angle sensor is arranged the lower end of the transmission shaft, five servo cylinders are connected between the upper platform and a lower platform, one servo cylinder is vertically connected to centers of the upper platform and the lower platform, and the other four servo cylinders are uniformly arranged in the circumferential direction of the edges of the upper platform and the lower platform and are mounted in an inclined manner; the vertical servo cylinder compensates heaving motion, the four inclined servo cylinders compensate swaying motion, surging motion, heaving motion, rolling motion and pitching motion, and the hydraulic motor compensates yawing motion, therefore, one safe and stable dining table is provided when a ship is in a swinging state.

Description

technical field [0001] The invention belongs to ship wave compensation technology, in particular to a ship table fixedly connected to the ship body and having the function of active wave compensation. Background technique [0002] The marine dining table is fixedly connected with the hull. It is a tool for seafarers to eat at present, and the marine dining table is required to be safe and stable. Due to the impact of wind and waves, ships operating at sea will rock irregularly with the waves, and the dining table will also rock irregularly, which seriously affects the normal dining of the diners and the safety of the utensils on the dining table. Therefore, appropriate measures must be taken to compensate the waves of the dining table in order to improve the working reliability of the marine dining table. [0003] The common wave active compensation system is mainly composed of sensors, controllers and actuators. The controller is the core part of the system. The controller...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B63B29/12
CPCB63B29/12B63B2029/046
Inventor 卢道华李春林王佳
Owner JIANGSU UNIV OF SCI & TECH
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