JPH1039006A - Connection structure of sonar dome and fairing plate - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a connection structure of a sonar dome and a fairing plate, capable of accurately, simply and shortly filling a clearance of an abutment part between the sonar dome and fairing plate without using a sealing material, etc., by simple works, and of effectively preventing flow noise generated from the clearance. SOLUTION: A fitting member 4 of a sonar dome main body 3 is suspended in a ship bottom 2, and a bead part 8 of the sonar dome main body 3 is clamped and fixed to a bead sheet 5 provided in the fitting member 4 via a bead clamp 6 and a bolt 7. Further, a fairing plate 9 formed so as to bend an iron plate or a fiber reinforced plastic plate, etc., is fitted on a surface side 3a of the sonar dome main body 3 and all surface sides 4a of the fitting member 4, and a projection part 10 for filling a clearance h generated in an abutment part X is integrally formed in the abutment part X between the sonar dome main body 3 and the fairing plate 9 thereof.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a connection structure between a sonar dome and a fairing plate, and more specifically, a gap formed at a contact portion between the sonar dome body and the fairing plate in advance in the sonar dome body. The present invention relates to a connection structure between a sonar dome and a fairing plate in which noise generated from a gap at the time of navigation is effectively reduced by sealing with a projected portion.

[0002]

2. Description of the Related Art Conventionally, a rubber sonar dome for protecting a transducer (acoustic sensor) mounted on an observation ship or the like has an engine generated from its own ship or the like, and other equipment and underwater generated from a propeller. In order to reduce the influence of noise, it may be mounted on the bow side or bottom of the hull.

[0003] Incidentally, as a mounting structure of a rubber sonar dome to be mounted on the bow side and the bottom of the ship, a hull outer plate and a terminal portion of the sonar dome main body are partitioned and formed between the hull and the sonar dome main body. A fairing plate is attached to cover the void. The mounting portion of the sonar dome body is fixedly fastened via a fastening member to a mounting bracket provided on the hull side and a bead portion having a wire reinforcing layer or the like provided on the sonar dome body embedded therein,
One end of the fairing plate is integrally fixed to a flange portion of a hull outer plate formed of an iron plate or the like by welding or the like, and the other end of the fairing plate is
It is integrally fixed by welding or the like to an L-shaped mounting bracket fixed to a terminal portion of the sonar dome body.

The L-shaped mounting bracket is fixed via a bolt to a female screw embedded in a terminal portion of the main body of the sonar dome. By the way, the surfaces of the rubber sonar dome and the fairing plate are finished to be extremely smooth for the purpose of reducing flow noise (noise) during navigation, but the sonar dome and the fairing plate are independently provided. In order to prevent the flow noise (noise) generated from the gap or step at the contact part between the sonar dome and the fairing plate, a method of filling with a sealing material or the like has conventionally been used. It was done.

[0005]

However, the method of filling the gap or the like with the sealing material is originally at a place where the gap is uneven and difficult to fill. There has been a problem that it cannot be sufficiently filled with water or the like that oozes out, and that it is difficult to secure the adhesive strength of the sealing material.

The present invention has been devised in view of such a conventional problem, and a gap between a contact portion between a sonar dome and a fairing plate can be formed by a simple operation without using a sealing material or the like. It is an object of the present invention to provide a connection structure between a sonar dome and a fairing plate that can be filled reliably and in a short time and that can effectively prevent flow noise (noise) generated from a gap.

[0007]

According to the present invention, in order to achieve the above object, a protrusion for filling a gap generated in the contact portion is integrally formed with a contact portion of the sonar dome body with the fairing plate. The gist is that it has been formed. The present invention is configured as described above, and a protrusion for filling a gap generated in the contact portion is integrally formed in a contact portion of the sonar dome body made of a rubber-like elastic body with the fairing plate in advance. In addition, when the fairing plate is assembled, the gap formed in the contact portion can be completely filled by adjusting the projection by shaping the projection into a shape that fills the gap. As a result, the sonar It is possible to effectively prevent flow noise (noise) generated from a gap or a step between a contact portion of the dome body and the fairing plate.

[0008]

Embodiments of the present invention will be described below with reference to the accompanying drawings. FIG. 1 is a side view of a first embodiment in which a sonar dome main body 3 made of a rubber-like elastic body is mounted on a hull bottom 2 of a hull 1, and FIG. 2 is an enlarged sectional view showing a mounting structure of the sonar dome main body 3 of FIG. The attachment member 4 of the sonar dome main body 3 is suspended from the ship bottom 2,
A bead portion 8 of the sonar dome body 3 is fastened and fixed to a bead sheet 5 provided on the mounting member 4 via a bead clamp 6 and a bolt 7.

Further, the surface side 3a of the sonar dome body 3
On the front side 4a of the mounting member 4, a fairing plate 9 formed by bending an iron plate or a fiber reinforced plastic plate or the like is mounted, and a contact portion X of the sonar dome body 3 with the fairing plate 9 is provided. And a projection 10 that fills a gap h generated in the contact portion X is integrally formed.

The projection 10 is provided on the sonar dome main body 3.
Is formed in a form slightly larger than the gap h generated in the contact portion X at the time of molding, and the tip side of the protrusion 10 is cut into a shape that fills the gap h when the fairing plate 9 is assembled. Is what you do. In FIG. 1,
Q denotes a sonar transducer, and 11 in FIG. 2 denotes a positioning member (spacer) of the fairing plate 9.

As described above, the sonar dome body 3 is
Contact part X with the fairing plate 9
Is formed integrally to fill the gap h generated at the time of mounting the fairing plate 9.
The gap h generated at the abutment portion X can be completely filled by trimming a part of 0 so that the gap h does not occur. The flow noise (noise) generated from the gap between the contact portions can be effectively prevented.

3 and 4 show the bow 2a of the hull 1. FIG.
2 shows a side view of a second embodiment in which a sonar dome main body 3 made of a rubber-like elastic body is mounted on the hull side of a bow 2a, and FIG. In the bead sheet 5 provided in
A bead portion 8 of the sonar dome main body 3 is fastened and fixed via a bead clamp 6 and a bolt 7.

The fairing plate 9 is attached via a screw member 14 to a side surface of an L bracket 13 attached via a bolt 12 to the upper portion of the sonar dome main body 3 and has a front surface 3a of the sonar dome main body 3. At the top of the
A projection 10 a for previously filling a gap h formed between the lower end of the fairing plate 9 and the fairing plate 9 is integrally formed.

The projection 10a is provided at the time of mounting the fairing plate 9 as in the first embodiment.
By adjusting a part of a so that the gap h does not occur, the gap h generated in the contact portion X can be completely filled. As a result, the fairing plate of the main body of the sonar dome during navigation of the ship can be removed. The flow noise (noise) generated from the gap between the contact portions can be effectively prevented.

[0015]

According to the present invention, as described above, the contact portion of the sonar dome main body with the fairing plate is integrally formed with the projection for filling the gap formed in the contact portion. By adjusting the projection by shaving the projection into a shape that does not create a gap at the time of assembly, it is possible to completely fill the gap generated at the contact part, and as a result, the sonar dome main body with the fairing plate during navigation of the ship There is an effect that flow noise (noise) generated from a gap between the contact portions can be effectively prevented.

[Brief description of the drawings]

FIG. 1 is a side view of a first embodiment in which a sonar dome body made of a rubber-like elastic body is attached to the bottom of a hull.

FIG. 2 is an enlarged sectional view showing an attachment structure of the sonar dome body of FIG.

FIG. 3 is a side view of a second embodiment in which a sonar dome body made of a rubber-like elastic body is attached to a bow of a hull.

FIG. 4 is an enlarged sectional view showing a mounting structure of the sonar dome body of FIG. 3;

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 Hull 2 Ship bottom 3 Sonar dome main body 4 Mounting member 5 Bead sheet 6 Bead clamp 7 Bolt 8 Bead part 9 Fairing plate 10 Projection part 11 Positioning member (spacer) Q Sonar transducer

Claims (1)

[Claims] 1. A sonar in which a fairing plate is attached to a hull outer plate and a terminal portion of a sonar dome body made of a rubber-like elastic body so as to cover a space defined between the hull and the sonar dome body. In the connection structure between the dome and the fairing plate, the sonar dome body has a contact portion with the fairing plate, wherein a protrusion for filling a gap generated in the contact portion is integrally formed. Connection structure between dome and fairing plate.