A broadband damping and vibration reduction modular water-lubricated bearing

Abstract

The invention provides a broadband damping vibration reduction modularized water lubricating bearing. The bearing comprises an outer bushing, an inner bushing and a main shaft, wherein the outer bushing, the inner bushing and the main shaft are sequentially arranged from outside to inside in a sleeving mode; the inner bushing comprises a plurality of groups of composite damping battens and a plurality of stopping copper strips; the plurality of stopping copper strips are arranged on the inner peripheral surface of the outer bushing at uniform intervals in the circumferential direction; and theplurality of groups of composite damping battens are respectively embedded in gaps between every two adjacent stopping copper strips and are attached to the inner wall of the outer bushing. The broadband damping vibration reduction modularized water lubricating bearing can achieve broadband damping vibration reduction, is suitable for vibration control in more frequency domains, has more variability due to the modular design, has better vibration reduction and noise reduction effects in more working conditions, and improves the comfort level of civil ships and the concealment of underwater vehicles.

Description

technical field [0001] The invention belongs to the technical field of mechanical bearing structures, and in particular relates to a broadband damping and vibration reduction modularized water lubricated bearing. Background technique [0002] The working conditions of the stern bearing of an underwater vehicle are extremely harsh, and the response amplitude of the shafting vibration is relatively large here. It plays a key role, and every time the underwater vehicle reduces the radiation noise by 6-10dB, the range of the passive sonar of the enemy can be reduced by about 50%, and the range of the passive sonar of one's own side can be increased by about 1 times, so the vibration reduction of the tail bearing Noise reduction research is of great significance to the improvement of the vibration theory system of ship propulsion shafting, and to the improvement of the quiet level and survivability of ships such as underwater vehicles. [0003] At present, water-lubricated stern...

AI Technical Summary

Problems solved by technology

[0004] In recent years, the porous structure is considered to be one of the main methods to improve the broadband vibration and noise reduction of materials. Some progress has been made, but there is little research on the application of water-lubricated stern bearings for vibration and noise reduction

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