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Marine double-web vibration isolation and noise reduction base

A double web and base technology, applied in ship propulsion, ship parts, ship construction, etc., can solve problems such as unsatisfactory vibration and noise reduction effects, thick single web, etc., to improve stealth and anti-submarine combat capabilities , weight reduction, and the effect of improving acoustic invisibility

Pending Publication Date: 2020-07-31
CHINA SHIP DEV & DESIGN CENT
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In the prior art, the vibration and noise reduction methods of power equipment bases (such as gear box bases) include installing various types of damping and vibration reduction between the equipment lower base and the base panel, and also by installing The vibration-absorbing springs and dampers are installed between them to perform vibration isolation in a flexible manner. However, for the power equipment base that must be rigidly fixed on the hull structure, the prior art generally adopts a single-web structure that is directly welded to the hull. The thickness is generally thick, and the vibration and noise reduction effect is not ideal

Method used

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  • Marine double-web vibration isolation and noise reduction base
  • Marine double-web vibration isolation and noise reduction base
  • Marine double-web vibration isolation and noise reduction base

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Embodiment Construction

[0015] The following will combine Figure 1 ~ Figure 3 A further detailed description is given to the marine double-web vibration-isolation and noise-reduction base of the present invention.

[0016] The principle of the present invention is based on the principle of mass vibration isolation - the vibration isolation degree of the equipment base is directly proportional to the mass of the mass vibration isolator, and inversely proportional to the mass of the web of the equipment base.

[0017] figure 1 Shown is the plan view of the marine double web vibration isolation and noise reduction base of the preferred embodiment of the present invention; figure 2 shown as figure 1 A-A sectional view in ; image 3 shown as figure 1 The B-B sectional view in .

[0018] see Figure 1 to Figure 3 , the marine double web vibration isolation and noise reduction base of this embodiment includes a base panel 1, a double web 2 and a damping material 5; the double web is arranged betwee...

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Abstract

The invention discloses a marine double-web vibration isolation and noise reduction base, which comprises a base panel, double web and a damping material, wherein the double web are arranged between the base panel and an inner bottom plate of a ship body and are fixedly connected with the inner bottom plate of the ship body and the base panel respectively; the base panel is connected with the surfaces of the double web, and the damping material is laid on the surfaces of the double web and the inner bottom plate of the ship body around the base. According to the marine double-web vibration isolation and noise reduction base, structural vibration and noise transmission caused by excitation of large power equipment of a ship are effectively reduced.

Description

technical field [0001] The invention relates to the structural design of a base of large-scale power equipment of a ship, in particular to a base for vibration isolation and noise reduction of a ship with double webs. Background technique [0002] At home and abroad, great attention has always been paid to the vibration and noise control of large-scale power equipment of ships-main engines and gearboxes. Reducing the operating noise and vibration control technology of large-scale ship power equipment has become an important indicator of ship habitability assessment. [0003] In the prior art, the vibration and noise reduction methods of power equipment bases (such as gear box bases) include installing various types of damping and vibration reduction between the equipment lower base and the base panel, and also by installing The vibration-absorbing springs and dampers are installed between them to perform vibration isolation in a flexible manner. However, for the power equipm...

Claims

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Application Information

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IPC IPC(8): B63H21/30
CPCB63H21/305
Inventor 韩正君郭培红郝健
Owner CHINA SHIP DEV & DESIGN CENT
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