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Ship high transmission loss base structure

A technology of transmission loss and base, applied in the direction of ships, ship propulsion, ship components, etc., can solve the problems of inability to realize multi-variable comprehensive optimization, lack of further understanding, neglect of elastic deformation of foundation and equipment, etc., and achieve good low-frequency vibration isolation Effectiveness, versatility, and good application prospects

Inactive Publication Date: 2010-06-02
HARBIN ENG UNIV
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  • Claims
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AI Technical Summary

Problems solved by technology

However, due to the limitations of the classic vibration isolation theory, the elastic deformation of the foundation and equipment is ignored; on the other hand, there is still a lack of further understanding of the main transmission paths and main transmission components of vibration and noise, and it is impossible to achieve multi-variable control for mechanical noise. Comprehensive optimization

Method used

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  • Ship high transmission loss base structure
  • Ship high transmission loss base structure
  • Ship high transmission loss base structure

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Embodiment Construction

[0024] The present invention is described in more detail below in conjunction with accompanying drawing example:

[0025] combine figure 2 , the ship high transmission loss base structure of the present invention comprises the base structure main body that is formed by base panel, base web, base bracket 3 connections, is made up of transverse mounting frame 4, vertical mounting frame 5 and The connecting mechanism composed of supporting brackets 6; the base panel has an extended base panel 8 protruding from the base web, and a vibration-absorbing covering layer 7 is arranged on the extended base panel; the base web and the vertical mounting plate The misplaced installation between the frames, that is, the web of the base is indented for a certain distance from the vertical mounting frame, forming a T-shaped, cross-shaped base connection form to connect the base of the ship with the mounting frame; the web of the base is set Anti-vibration quality9. The vibration-damping mas...

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Abstract

The invention provides a ship high transmission loss base structure. The base structure comprises a base structure main body which is prepared by connecting a base face plate, a base web plate and a base wrist plate together and a connection mechanism which is prepared by connecting a transverse installation grillage, a vertical installation grillage and a support wrist plate; the base face plate has a section of an expansion base face plate extending out of the base web plate, the expansion base face plate is provided with a vibration-absorbing covering layer; the base web plate and the vertical installation grillage are arranged in staggering manner, namely the base web plate retracts the installation grillage for a certain distance; and the base web plate is provided with a vibration isolation mass. The invention ensures that the ship base structure transmits the interactive load between the ship hull and the device, has a good effect of isolating the vibration wave transmitted by the device so as to prevent the transmission, has good economy and wide application prospect and is applicable to typical high transmission loss base structures of various ships.

Description

technical field [0001] The invention relates to an equipment installation base, in particular to an equipment installation base capable of reducing mechanical vibration and noise of a ship. Background technique [0002] The previous vibration reduction and isolation measures were to install expensive vibration isolation devices between the hull and the equipment, which not only increased the construction cost of the ship, but also increased the weight and size of the equipment, and the effect of the vibration isolation devices was often It is greatly discounted due to the complexity of the actual ship environment. If the acoustic design of the typical base structure can be carried out based on the impedance mismatch technology, the base structure can connect the equipment and the hull structure and transmit the interaction load between the hull and the equipment, and at the same time have a good isolation of the vibration wave transmission transmitted by the equipment. This...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B63H21/30
Inventor 姚熊亮计方庞福振王强勇钱德进张阿漫戴绍式孙龙泉
Owner HARBIN ENG UNIV
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