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Hybrid vibration-reduction and noise-reduction base structure

A kind of vibration and noise reduction, hybrid technology, used in ship propulsion, ship parts, ships, etc., can solve the problem of limited vibration reduction effect, and achieve the effect of good vibration and noise reduction performance

Inactive Publication Date: 2017-06-13
CHINA SHIP DEV & DESIGN CENT
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] At present, the vibration and noise reduction measures for the base are to apply damping to the surface of the base, but the effect of damping on the surface of the base is very limited for the overall vibration reduction of the base structure

Method used

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  • Hybrid vibration-reduction and noise-reduction base structure

Examples

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Embodiment Construction

[0025] The invention provides a hybrid vibration and noise reduction base structure, including:

[0026] base panel;

[0027] The web of the base is welded under the upper panel of the base; the web of the base is made of high-manganese-based high-damping alloy steel;

[0028] The lower panel of the base is welded under the web of the base, and the upper panel of the base and the lower panel of the base are made of marine structural steel.

[0029] The technical solutions of the present invention will be described in detail below in conjunction with specific embodiments. In order to better illustrate the technical solution of the present invention, please refer to the attached figure 1 - attached Figure 4 ,in figure 1 It is a top view diagram of a hybrid vibration and noise reduction base structure according to an embodiment of the present invention; figure 2 Yes figure 1 Schematic diagram of the cross-sectional structure along AA; image 3 Yes figure 1 Schematic dia...

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Abstract

The invention provides a hybrid vibration-reduction and noise-reduction base structure. The hybrid vibration-reduction and noise-reduction base structure comprises a base upper panel and base webs which are welded below the base upper panel, wherein the base webs are made of high-manganese base high-damping alloy steel; a base lower panel is welded below the base webs; and the base upper panel and the base lower panel are made of shipbuilding steel. According to the hybrid vibration-reduction and noise-reduction base structure provided by the invention, the average vibration response is much lower than that of the conventional steel base panels to the bottom of the base in a range of 1 to 1000Hz.

Description

technical field [0001] The invention relates to a base structure of water surface ship equipment, especially a base structure with high requirements for vibration reduction and noise reduction. Background technique [0002] The surface ship base is an indispensable structure for connecting the ship hull and equipment. The vibration of mechanical equipment radiates noise to the hull structure and the outside of the hull through the base. Generally speaking, in order to control the vibration and noise of the ship and ensure the working environment of the crew, it is generally necessary to put forward higher requirements on the vibration and noise source of mechanical vibration and the equipment itself, in order to reduce the vibration and noise from the source. When the vibration (noise) of the equipment itself is difficult to further reduce, it is generally required for the equipment vibration isolator to reduce the vibration and noise of the equipment (vibration source) to ...

Claims

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Application Information

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IPC IPC(8): B63H21/30
CPCB63H21/305
Inventor 吴广明武凯冯维
Owner CHINA SHIP DEV & DESIGN CENT
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