Water-lubricated rubber stern bearing friction and vibration testing system and method

Abstract

The invention discloses a water-lubricated rubber tail bearing frictional vibration testing system and a method thereof. The system comprises a base, a mounting bracket is arranged on the base, a vertical sliding frame is arranged on the mounting bracket, and a vertical sliding frame is arranged above the vertical sliding frame. There is a loading device for applying vertical pressure on it. A clamping device connected to the horizontal sliding frame is provided under the vertical sliding frame. A rubber block is clamped in the clamping device, and a rubber block is provided under the rubber block for frictional contact with it. There is a plexiglass shaft, a motor for driving its rotation is arranged behind the plexiglass shaft, a water tank is arranged under the plexiglass shaft, and a submersible pump is arranged in the water tank, and the submersible pump guides the water in the water tank into the rubber block and the plexiglass shaft through the water pipe contact surface. The invention can simulate the working conditions of different temperature conditions and pressure conditions, and realize the friction and vibration test of the water-lubricated rubber tail bearing.

Description

technical field [0001] The invention relates to the technical field of friction and vibration testing, in particular to a water-lubricated rubber tail bearing friction and vibration testing system and method thereof. Background technique [0002] In recent years, there has been an increasing demand for new green shipping technologies, and tribology plays an important role in the development of such technologies. The oil-lubricated bearings of conventional propulsion systems pollute the environment. Water-lubricated stern bearings are widely used in the marine industry. Water-lubricated rubber stern bearings first appeared in the Battle of Midway Island. Due to their strong wear resistance, strong vibration damping performance, and strong impact resistance, but when the ship starts, stops, and rotates at low speeds, the surface of the water-lubricated stern bearing contact area The hydrodynamic lubricating film cannot be formed, and the stick-slip phenomenon is very easy to...

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Problems solved by technology

[0003] With the deepening of water-lubricated bearings, it is very necessary to study the stick-slip mechanism of water-lubricated rubber tail bearings, but the mechanism and influencing factors of the stick-slip phenomenon are more complicated. However, this device cannot realize the visualization of the friction surface; there is also a friction squeal suppression method based on stick-slip and self-locking vibration judgment, but it is limited to the suppression method of friction squeal and cannot comprehensively analyze the stickiness. Sliding mechanism; and some studies are based on the friction and vibration mechanism of the friction and wear testing machine, but the friction and wear testing machine can not realize the visualization of the friction surface, and it is difficult to collect the friction squeal of the friction and wear testing machine

[0004] At present, domestically, there are relatively few studies on the stick-slip phenomenon of water-lubricated rubber tail bearings based on computer vision image processing technology. Therefore, it is of great significance to design a friction and vibration test system for water-lubricated rubber tail bearings.

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