JPH0362400U - - Google Patents
Info
- Publication number
- JPH0362400U JPH0362400U JP12218289U JP12218289U JPH0362400U JP H0362400 U JPH0362400 U JP H0362400U JP 12218289 U JP12218289 U JP 12218289U JP 12218289 U JP12218289 U JP 12218289U JP H0362400 U JPH0362400 U JP H0362400U
- Authority
- JP
- Japan
- Prior art keywords
- wedge
- absorbing
- sound
- underwater sound
- communicating
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000010521 absorption reaction Methods 0.000 claims description 3
- 239000007787 solid Substances 0.000 claims 1
Landscapes
- Building Environments (AREA)
- Soundproofing, Sound Blocking, And Sound Damping (AREA)
Description
第１図は本考案の一実施例の縦断面図、第２図
は第１図の−矢視図、第３図は本考案の他の
実施例の縦断面図、第４図は従来の水中吸音楔の
平面図、第５図は第４図のＶ−Ｖ線に沿う断面図
、第６図は従来の吸音楔の吸音特性を示すグラフ
である。
１………吸音楔、１ａ，１ｂ……吸音楔の分割
された部分、１１ａ〜１１ｆ……ヘルムホルツ共
鳴器、１２……空洞、１３……連通孔、２０ａ，
２０ｂ……閉じ板、３０……接合面。
Fig. 1 is a longitudinal cross-sectional view of one embodiment of the present invention, Fig. 2 is a view taken along the - arrow in Fig. 1, Fig. 3 is a longitudinal cross-sectional view of another embodiment of the present invention, and Fig. 4 is a conventional FIG. 5 is a plan view of the underwater sound-absorbing wedge, FIG. 5 is a sectional view taken along the line V-V in FIG. 4, and FIG. 6 is a graph showing the sound-absorbing characteristics of the conventional sound-absorbing wedge. 1... Sound absorption wedge, 1a, 1b... Divided parts of sound absorption wedge, 11a to 11f... Helmholtz resonator, 12... Cavity, 13... Communication hole, 20a,
20b...Closing plate, 30...Joint surface.
Claims (1)
吸音楔内に外部と連通した複数の共鳴周波数の異
る共鳴吸収用空洞を設けたことを特徴とする水中
吸音楔。 In an underwater sound absorption wedge formed into a solid wedge shape,
An underwater sound-absorbing wedge characterized in that a plurality of resonance-absorbing cavities having different resonance frequencies are provided in the sound-absorbing wedge and communicating with the outside.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12218289U JPH0755599Y2 (en) | 1989-10-20 | 1989-10-20 | Underwater sound absorption wedge |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12218289U JPH0755599Y2 (en) | 1989-10-20 | 1989-10-20 | Underwater sound absorption wedge |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0362400U true JPH0362400U (en) | 1991-06-18 |
| JPH0755599Y2 JPH0755599Y2 (en) | 1995-12-20 |
Family
ID=31670195
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP12218289U Expired - Lifetime JPH0755599Y2 (en) | 1989-10-20 | 1989-10-20 | Underwater sound absorption wedge |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0755599Y2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004286808A (en) * | 2003-03-19 | 2004-10-14 | Mitsubishi Heavy Ind Ltd | Sound absorbing structure |
-
1989
- 1989-10-20 JP JP12218289U patent/JPH0755599Y2/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004286808A (en) * | 2003-03-19 | 2004-10-14 | Mitsubishi Heavy Ind Ltd | Sound absorbing structure |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0755599Y2 (en) | 1995-12-20 |
Similar Documents
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EXPY | Cancellation because of completion of term |