JP2007113700A - 振り子式制振装置 - Google Patents
振り子式制振装置 Download PDFInfo
- Publication number
- JP2007113700A JP2007113700A JP2005305935A JP2005305935A JP2007113700A JP 2007113700 A JP2007113700 A JP 2007113700A JP 2005305935 A JP2005305935 A JP 2005305935A JP 2005305935 A JP2005305935 A JP 2005305935A JP 2007113700 A JP2007113700 A JP 2007113700A
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- JP
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- Prior art keywords
- viscous liquid
- pendulum
- damping device
- pendulum type
- liquid holding
- 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
- 239000007788 liquid Substances 0.000 claims abstract description 83
- 238000013016 damping Methods 0.000 claims description 54
- 238000005192 partition Methods 0.000 claims description 9
- 230000000694 effects Effects 0.000 abstract description 9
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 12
- 230000004048 modification Effects 0.000 description 11
- 238000012986 modification Methods 0.000 description 11
- 230000005284 excitation Effects 0.000 description 8
- 238000012423 maintenance Methods 0.000 description 8
- 238000009833 condensation Methods 0.000 description 6
- 230000005494 condensation Effects 0.000 description 6
- 238000010586 diagram Methods 0.000 description 6
- 239000011810 insulating material Substances 0.000 description 6
- 229910000831 Steel Inorganic materials 0.000 description 5
- 239000010959 steel Substances 0.000 description 5
- 238000007689 inspection Methods 0.000 description 4
- 238000009413 insulation Methods 0.000 description 4
- 238000012856 packing Methods 0.000 description 4
- 230000004044 response Effects 0.000 description 4
- 239000000725 suspension Substances 0.000 description 4
- 239000006260 foam Substances 0.000 description 3
- 239000003921 oil Substances 0.000 description 3
- 230000000630 rising effect Effects 0.000 description 3
- 230000007246 mechanism Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 229920002379 silicone rubber Polymers 0.000 description 2
- 239000004809 Teflon Substances 0.000 description 1
- 229920006362 Teflon® Polymers 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000000737 periodic effect Effects 0.000 description 1
- 230000009257 reactivity Effects 0.000 description 1
- 230000001932 seasonal effect Effects 0.000 description 1
- 229920002545 silicone oil Polymers 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 230000001629 suppression Effects 0.000 description 1
Images
Abstract
【解決手段】振り子式制振装置10は、所定の支持部材13によって、任意の方向に移動可能に吊下げられ、下端に重錘14を有する振り子と、重錘の移動を妨げる粘性液体35を保持する粘性液体保持部31とを含み、粘性液体保持部31は、断熱構造を有している。
【選択図】図1
Description
ここで、Scはスクルートン数であり、mは単位長さあたりの質量であり、δは煙突の対象モードの対数減衰率であり、ρは、空気密度であり、Dは煙突の代表径(高さ方向に代表径が異なる場合は、煙突高さの2/3の位置での煙突外径を採用する)。この式において、振り子式制振装置10を設置することで、δが大きくなり、渦励振の応答を低減できる。
Claims (5)
- 所定の支持部材によって、任意の方向に移動可能に吊下げられ、下端に重錘を有する振り子と、
前記重錘の移動を妨げる粘性液体を保持する粘性液体保持部とを含み、
前記粘性液体保持部は、断熱構造を有している、振り子式制振装置。 - 前記粘性液体保持部は半球状である、請求項1に記載の振り子式制振装置。
- 前記粘性液体保持部内には、上面に凸部を有する仕切り部が設けられる、請求項1または2に記載の振り子式制振装置。
- 前記振り子と前記粘性液体保持部とは、所定の密封可能な容器内に収容され、
前記振り子は、前記容器の天井にユニバーサルジョイントで支持される、請求項1から3のいずれかに記載の振り子式制振装置。 - 前記振り子と前記粘性液体保持部とは、所定の密封可能な容器内に収容され、
前記振り子は、前記容器の天井に、第1方向および前記第1方向に直交する第2方向に回転可能な第1ジョイントと、前記第2方向および前記第1および第2方向と交わる第3方向に回転可能な第2ジョイントとによって支持される、請求項1から4のいずれかに記載の振り子式制振装置。
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2005305935A JP4504295B2 (ja) | 2005-10-20 | 2005-10-20 | 振り子式制振装置 |
Applications Claiming Priority (1)
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---|---|---|---|
JP2005305935A JP4504295B2 (ja) | 2005-10-20 | 2005-10-20 | 振り子式制振装置 |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2007113700A true JP2007113700A (ja) | 2007-05-10 |
JP4504295B2 JP4504295B2 (ja) | 2010-07-14 |
Family
ID=38096077
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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JP2005305935A Active JP4504295B2 (ja) | 2005-10-20 | 2005-10-20 | 振り子式制振装置 |
Country Status (1)
Country | Link |
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JP (1) | JP4504295B2 (ja) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP7409919B2 (ja) | 2020-03-16 | 2024-01-09 | 日立造船株式会社 | 抵抗体および制振装置 |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CA3064959A1 (en) | 2018-12-12 | 2020-06-12 | Roller Bearing Company Of America, Inc. | Spherical plain bearing for dampers |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH08270724A (ja) * | 1995-03-30 | 1996-10-15 | Showa Electric Wire & Cable Co Ltd | 制振装置 |
JP2000240319A (ja) * | 1999-02-17 | 2000-09-05 | Menseihin Sogo Kikaku:Kk | 制震壁および制震壁を備える構造物 |
JP2000249186A (ja) * | 1999-03-04 | 2000-09-12 | Masami Masuda | 無指向吸振器 |
JP2004270830A (ja) * | 2003-03-10 | 2004-09-30 | Yamashita Rubber Co Ltd | 制振装置 |
-
2005
- 2005-10-20 JP JP2005305935A patent/JP4504295B2/ja active Active
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH08270724A (ja) * | 1995-03-30 | 1996-10-15 | Showa Electric Wire & Cable Co Ltd | 制振装置 |
JP2000240319A (ja) * | 1999-02-17 | 2000-09-05 | Menseihin Sogo Kikaku:Kk | 制震壁および制震壁を備える構造物 |
JP2000249186A (ja) * | 1999-03-04 | 2000-09-12 | Masami Masuda | 無指向吸振器 |
JP2004270830A (ja) * | 2003-03-10 | 2004-09-30 | Yamashita Rubber Co Ltd | 制振装置 |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP7409919B2 (ja) | 2020-03-16 | 2024-01-09 | 日立造船株式会社 | 抵抗体および制振装置 |
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JP4504295B2 (ja) | 2010-07-14 |
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