Horizontal plane motion mechanism for towing tank test

Abstract

The invention discloses a horizontal plane motion mechanism for a towing tank test, which comprises a plane motion mechanism comprising a transverse oscillation frame 8, a transverse oscillation motion component 9, a yawing oscillation motion component 10, a transverse beam 6, a front connecting rod 5, a front connecting rod 11, adjusting rods 4 and 12, joints 3 and 13, force balances 2 and 14, and the like. The upper part of the horizontal plane motion mechanism is connected with a tank trailer 7 through the transverse oscillation frame 8, while the lower part is connected with a ship model 1 through the connecting rods 5 and 11 and force balances 2 and 14. By adopting a rolling guide rail, the transverse oscillation motion component has the characteristics of long service life, free maintenance for long-term work, high speed, low noise, high capacity of absorbing a mounting dimension error, and the like; and the transverse oscillation amplitude is over + / -1m, the ball screw precision is high and a transverse oscillation amplitude error is less than 0.2mm. Due to the adoption of a self-lubricating bearing and worm gear transmission, the yawing oscillation motion component has the advantages of wide rotation angle range, high torque, high self-locking property and high precision. A plurality of groups of connecting rod mounting holes are formed on the transverse beam and are suitable for different ship models. The connecting rod is provided with a linear bearing, and when the ship model is influenced by an external force to oscillate up and down, the connecting rod automatically adjusts the length, can remove a force in the vertical direction, and improves the accuracy of the maneuvering performance test. The control system is driven by a servo motor, a photoelectric encoder is used for sampling and feeding back, and a PLC programmable logic controller is used for controlling. The horizontal plane motion mechanism has the advantages of convenient control.

Description

technical field [0001] The invention relates to a ship model test, and more particularly relates to a mechanism for measuring the motion performance of a ship model. Background technique [0002] Plane motion mechanism for tank ship model test, this test technology was developed by the United States in the early 1950s, and has been widely used in tests of ships, aircraft, robots, etc. Existing ship tank planar motion mechanisms have small swaying amplitude, and most of them adopt hydraulic drive, which has large volume, complex structure, difficult control, low precision, high sealing requirements, and easy to pollute the pool when oil leaks. [0003] In order to solve the above-mentioned problems, the present invention provides a water plane plane motion mechanism for tank ship model testing with simple structure, convenient operation, precise control, safety and reliability. Contents of the invention [0004] In order to solve the above-mentioned problems, the technical...

AI Technical Summary

Problems solved by technology

Existing ship tank plane motion mechanisms have small swaying amplitude, and most of them use hydraulic drive, which has large volume, complex structure, difficult control, low precision, high sealing requirements, and easy to pollute the pool when oil leaks

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