JPH0281942U - - Google Patents
Info
- Publication number
- JPH0281942U JPH0281942U JP16081588U JP16081588U JPH0281942U JP H0281942 U JPH0281942 U JP H0281942U JP 16081588 U JP16081588 U JP 16081588U JP 16081588 U JP16081588 U JP 16081588U JP H0281942 U JPH0281942 U JP H0281942U
- Authority
- JP
- Japan
- Prior art keywords
- airtight chamber
- injection
- chamber pressure
- pipe
- solenoid
- 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
- 238000002347 injection Methods 0.000 claims description 9
- 239000007924 injection Substances 0.000 claims description 9
- 239000006096 absorbing agent Substances 0.000 claims description 4
- 239000007788 liquid Substances 0.000 claims description 2
- 239000012530 fluid Substances 0.000 claims 2
- 238000007599 discharging Methods 0.000 claims 1
- 230000005284 excitation Effects 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Vibration Prevention Devices (AREA)
- Control Of Fluid Pressure (AREA)
Description
第１図は本考案の一実施例の系統図、第２図は
従来技術の系統図、第３図は上記従来技術におい
て用いられる動吸振器の固有振動数と気密室圧力
の関係図である。
１……連通タンク、１ａ，１ｂ……竪形タンク
、２ａ，２ｂ……気密室、３……タンク内液体（
例えば水）、４ａ，４ｂ……注入通気管、４……
注入管、５……減圧弁、６……圧力空気源（コン
プレツサー）、７ａ，７ｂ……排出通気管、７…
…排気管、８……圧力スイツチ、９……電磁弁、
１０……回転検出器、１１……回転数カウンター
回路、１２……圧力検出器、１３……圧力検出器
用増幅器、１４……排出用電磁弁、１５……排出
用電磁弁作動増幅器、１６……注入用電磁減圧弁
、１７……注入用電磁減圧弁作動増幅器、１８…
…コントローラ、１９……回転体軸（プロペラ軸
）。
Fig. 1 is a system diagram of an embodiment of the present invention, Fig. 2 is a system diagram of the prior art, and Fig. 3 is a diagram showing the relationship between the natural frequency and airtight chamber pressure of the dynamic vibration absorber used in the above-mentioned prior art. . 1...Communication tank, 1a, 1b...Vertical tank, 2a, 2b...Airtight chamber, 3...Liquid in tank (
For example, water), 4a, 4b... injection vent pipe, 4...
Injection pipe, 5... Pressure reducing valve, 6... Pressure air source (compressor), 7a, 7b... Discharge vent pipe, 7...
...Exhaust pipe, 8...Pressure switch, 9...Solenoid valve,
10... Rotation detector, 11... Rotation speed counter circuit, 12... Pressure detector, 13... Pressure detector amplifier, 14... Discharge solenoid valve, 15... Discharge solenoid valve operating amplifier, 16... ...Solenoid pressure reducing valve for injection, 17...Solenoid pressure reducing valve actuation amplifier for injection, 18...
...Controller, 19...Rotating body shaft (propeller shaft).
Claims (1)
連通タンクとからなり竪形タンク上部の気密室に
空気を残して内部に液体を蓄えたＵ字形連通管式
タンク、上記気密室にコンプレツサによつて圧縮
空気を注入する注入管、同気密室から空気を排出
する排出管を備えた流体動吸振器において、励振
源の振動数を検知する手段、あらかじめ検定され
た前記動吸振器の固有振動数と前記気密室圧力の
関係に前記の検知された振動数を適用して気密室
圧力の設定値を算出する手段、前記の実際の気密
室圧力を検知する手段、前記注入管に設けられた
注入用電磁減圧弁、前記排気管に設けられた排出
用電磁弁、および前記の実際の気密室圧力が常に
前記の算出された気密室圧力設定値となるよう前
記注入用電磁減圧弁および前記排出用電磁弁を制
御するコントローラを備えたことを特徴とする流
体動吸振器。 A U-shaped communicating pipe tank consisting of vertical tanks at both ends and a communication tank that communicates them at the bottom, with liquid stored inside while leaving air in the airtight chamber at the top of the vertical tank. In a fluid dynamic vibration absorber equipped with an injection pipe for injecting compressed air and a discharge pipe for discharging air from the airtight chamber, a means for detecting the frequency of the excitation source, and a pre-verified natural frequency of the dynamic vibration absorber. means for calculating a set value of the airtight chamber pressure by applying the detected frequency to the relationship between the airtight chamber pressure and the airtight chamber pressure, a means for detecting the actual airtight chamber pressure, and an injection provided in the injection pipe. a solenoid pressure reducing valve for injection, a solenoid valve for discharge provided in the exhaust pipe, and a solenoid pressure reducing valve for injection and a solenoid valve for discharge so that the actual airtight chamber pressure always becomes the calculated airtight chamber pressure set value. A fluid dynamic vibration absorber characterized by comprising a controller that controls a solenoid valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1988160815U JP2511983Y2 (en) | 1988-12-13 | 1988-12-13 | Fluid dynamic vibration absorber |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1988160815U JP2511983Y2 (en) | 1988-12-13 | 1988-12-13 | Fluid dynamic vibration absorber |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0281942U true JPH0281942U (en) | 1990-06-25 |
| JP2511983Y2 JP2511983Y2 (en) | 1996-09-25 |
Family
ID=31443211
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1988160815U Expired - Lifetime JP2511983Y2 (en) | 1988-12-13 | 1988-12-13 | Fluid dynamic vibration absorber |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2511983Y2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103097239A (en) * | 2010-09-15 | 2013-05-08 | 三菱重工业株式会社 | Azimuth propeller |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS588490A (en) * | 1981-07-02 | 1983-01-18 | Furuno Electric Co Ltd | Roll reducing device |
| JPS63243544A (en) * | 1987-03-27 | 1988-10-11 | Nkk Corp | Dynamic vibration reducer control device |
-
1988
- 1988-12-13 JP JP1988160815U patent/JP2511983Y2/en not_active Expired - Lifetime
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS588490A (en) * | 1981-07-02 | 1983-01-18 | Furuno Electric Co Ltd | Roll reducing device |
| JPS63243544A (en) * | 1987-03-27 | 1988-10-11 | Nkk Corp | Dynamic vibration reducer control device |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103097239A (en) * | 2010-09-15 | 2013-05-08 | 三菱重工业株式会社 | Azimuth propeller |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2511983Y2 (en) | 1996-09-25 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EXPY | Cancellation because of completion of term |