JPS5676744A - Antivibration block - Google Patents
Antivibration blockInfo
- Publication number
- JPS5676744A JPS5676744A JP15358579A JP15358579A JPS5676744A JP S5676744 A JPS5676744 A JP S5676744A JP 15358579 A JP15358579 A JP 15358579A JP 15358579 A JP15358579 A JP 15358579A JP S5676744 A JPS5676744 A JP S5676744A
- Authority
- JP
- Japan
- Prior art keywords
- block
- tower
- cylinder
- vibration
- damping
- 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.)
- Pending
Links
Landscapes
- Vibration Prevention Devices (AREA)
- Bridges Or Land Bridges (AREA)
Abstract
PURPOSE: To give damping force in accordance with the vibration of a tower structure to an antivibration block used for controlling vibration of a main tower of suspension bridge or a flue and obtain sufficient damping effect, by freely changing the spring constant of a spring which is deformable in the moving direction of the block, being set between the block and a stationary wall.
CONSTITUTION: As resonance wind works on a main tower 1, the tower 1 becomes resonant due to the Karman vibration. An antivibration block 5 is also vibrated through a damping rope 3 and connecting rope 4, and coulomb friction generated between a slant face 6 and the block 5 damps the main tower 1. Since the damping effect is not large when displacement of the block 5 is smaller than that at the top of the tower 1, service fluid such as air or oil is fed in a cylinder 8 from a compressor 11 to close a valve 9, so that fluid in the cylinder 8 is enclosed. This provides the cylinder 8 with a spring effect to increase amplitude of the block 5 and produce large damping effect.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP15358579A JPS5676744A (en) | 1979-11-29 | 1979-11-29 | Antivibration block |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP15358579A JPS5676744A (en) | 1979-11-29 | 1979-11-29 | Antivibration block |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5676744A true JPS5676744A (en) | 1981-06-24 |
Family
ID=15565698
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP15358579A Pending JPS5676744A (en) | 1979-11-29 | 1979-11-29 | Antivibration block |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5676744A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5934308A (en) * | 1982-08-18 | 1984-02-24 | 住友重機械工業株式会社 | Vibration dampening of structure such as suspended bridge or tower |
WO2013097762A1 (en) * | 2011-12-30 | 2013-07-04 | 中联重科股份有限公司 | Vibration control method and device therefor for controlling coupled vibration of tower crane-cable bet tower structure |
-
1979
- 1979-11-29 JP JP15358579A patent/JPS5676744A/en active Pending
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5934308A (en) * | 1982-08-18 | 1984-02-24 | 住友重機械工業株式会社 | Vibration dampening of structure such as suspended bridge or tower |
JPH0248683B2 (en) * | 1982-08-18 | 1990-10-25 | Sumitomo Heavy Industries | |
WO2013097762A1 (en) * | 2011-12-30 | 2013-07-04 | 中联重科股份有限公司 | Vibration control method and device therefor for controlling coupled vibration of tower crane-cable bet tower structure |
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