Water lubricating stern bearing adhesion-sliding phenomenon testing system

Abstract

The invention relates to a water lubricating stern bearing adhesion-sliding phenomenon testing system. The water lubricating stern bearing adhesion-sliding phenomenon testing system comprises a driving unit, a loading unit, a water filling unit, a measuring unit, and an image unit. The driving unit comprises a motor, a coaxial transmission component, and a glass sleeve. The loading unit comprises a support, a balance lever, a weight, and a bearing test block. The glass sleeve and the bearing test block are contacted with each other to form a friction pair. The water filling unit comprises a water tank, a pump, and a water spraying pipe. The measuring unit comprises a rotation speed torque device, a three-component force transducer, a vibration sensor, and a sound sensor. The image unit comprises a high speed camera, a hard bar mirror, and an adjustable lamp. The water spraying pipe, the high speed camera, and the hard bar mirror are pointed at the friction pair, and the working surface of the bearing test block is provided with a mark point. The visualization test, and the noise, vibration, and friction force recording of the water lubricating stern bearing adhesion-sliding phenomena are realized, and the test and the research of the adhesion-sliding phenomena under conditions of different lubricating waters and different rotation speeds are realized, and therefore the testing system is closer to an actual motion rule of a shaft and the bearing.

Description

technical field [0001] The invention belongs to the technical field of ship propulsion, and in particular relates to a stick-slip phenomenon testing system for a water-lubricated stern bearing. Background technique [0002] The water-lubricated stern bearing is an important part of the propulsion system of a ship. When the ship starts, stops and operates at low speed, the hydrodynamic lubricating film cannot be formed on the surface of the water-lubricated stern bearing contact area, and the stick-slip phenomenon is easily generated, resulting in frictional vibration and noise. Therefore, the research on the stick-slip phenomenon of water-lubricated stern bearing is of great significance to improve the concealment of ships, especially submarines. [0003] Stick-slip, as the basic unit of the friction process, is very important for understanding the interface friction behavior. When one slides on another surface at a very low speed, the friction process will become disconti...

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Problems solved by technology

However, this experimental device cannot visually display the friction surface intuitively, and cannot provide a direct and powerful basis for the existence of stick-slip phenomenon and the distribution of water pockets in water-lubricated rubber tail bearings.

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