Title:
【発明の名称】振動状態にある管の振動エネルギの吸収方法及び装置
Document Type and Number:
Japanese Patent JP2759090
Kind Code:
B2
Abstract:
Vibration dampener and stiffener apparatus (210, 450, 470) and method for increasing the dampening and the stiffness of a tube (200) subjected to large amplitude flow-induced vibration. The preferred embodiment of the apparatus (210) includes a plurality of flexible braided cables (210) capable of being disposed in the tube (200) for dissipating the vibration energy of the tube (200) as the tube (200) vibrates, the cables (210) having a first end portion (280) and a second end portion (290). Enclosing the first end portion (280) of the plurality of flexible cables (210) is a rigid cable tip member (310) and enclosing the second end portion (290) of each cable (210) is a rigid cable end fitting (380, 410). As the tube (200) vibrates due to flow-induced vibration, the vibration energy will be transferred to the cables (210) which will rub together creating frictional heat energy that will radiate from the cables (210). In this manner, the vibration amplitude of the tube (200) is decreased. Moreover, as the tube (200) vibrates, the rigid cable tip member (310) and the rigid cable end fittings (380, 410) will tend to stiffen the tube (200).
Inventors:
DEBITSUDO JOSEFU FUINKU
SUCHIIBUN MAAKU IIRA
TOOMASU MAIKERU FURITSUKU
JEEMUSU ROBAATO JIRAA
SUCHIIBUN MAAKU IIRA
TOOMASU MAIKERU FURITSUKU
JEEMUSU ROBAATO JIRAA
Application Number:
JP24695190A
Publication Date:
May 28, 1998
Filing Date:
September 17, 1990
Export Citation:
Assignee:
UESUCHINGUHAUSU EREKUTORITSUKU CORP
International Classes:
F16L55/02; F16L55/033; F28F13/06; F16L55/00; F28F19/00; (IPC1-7): F16L55/02; F28F13/06
Domestic Patent References:
| JP6147189U | ||||
| JP6271496U | ||||
| JP120552Y2 |
Other References:
【文献】米国特許4590991(US,A)
【文献】米国特許2238146(US,A)
【文献】米国特許2238146(US,A)
Attorney, Agent or Firm:
Koichiro Kato (1 person outside)