FR2367148A1 - Vibration suppressor for water immersed column - has staggered random ribs in helical path to break up regular vortices - Google Patents

Vibration suppressor for water immersed column - has staggered random ribs in helical path to break up regular vortices

Info

Publication number
FR2367148A1
FR2367148A1 FR7629852A FR7629852A FR2367148A1 FR 2367148 A1 FR2367148 A1 FR 2367148A1 FR 7629852 A FR7629852 A FR 7629852A FR 7629852 A FR7629852 A FR 7629852A FR 2367148 A1 FR2367148 A1 FR 2367148A1
Authority
FR
France
Prior art keywords
ribs
profiles
break
vortices
staggered
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.)
Withdrawn
Application number
FR7629852A
Other languages
French (fr)
Inventor
Jacques Edouard Lamy
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Compagnie Generale Pour Les Developpements Operationnels Des Richesses s Ous Marines C G Doris
Original Assignee
Compagnie Generale Pour Les Developpements Operationnels Des Richesses s Ous Marines C G Doris
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Compagnie Generale Pour Les Developpements Operationnels Des Richesses s Ous Marines C G Doris filed Critical Compagnie Generale Pour Les Developpements Operationnels Des Richesses s Ous Marines C G Doris
Priority to FR7629852A priority Critical patent/FR2367148A1/en
Priority to DE19772744277 priority patent/DE2744277A1/en
Priority to NO773369A priority patent/NO773369L/en
Priority to BR7706624A priority patent/BR7706624A/en
Priority to ES463014A priority patent/ES463014A1/en
Publication of FR2367148A1 publication Critical patent/FR2367148A1/en
Withdrawn legal-status Critical Current

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02B—HYDRAULIC ENGINEERING
    • E02B3/00—Engineering works in connection with control or use of streams, rivers, coasts, or other marine sites; Sealings or joints for engineering works in general
    • E02B3/04—Structures or apparatus for, or methods of, protecting banks, coasts, or harbours
    • E02B3/06—Moles; Piers; Quays; Quay walls; Groynes; Breakwaters ; Wave dissipating walls; Quay equipment
    • E02B3/068—Landing stages for vessels
    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
    • E01D19/00—Structural or constructional details of bridges
    • E01D19/02—Piers; Abutments ; Protecting same against drifting ice
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02B—HYDRAULIC ENGINEERING
    • E02B17/00—Artificial islands mounted on piles or like supports, e.g. platforms on raisable legs or offshore constructions; Construction methods therefor
    • E02B17/0017—Means for protecting offshore constructions

Abstract

The ribbing system is used for neutralisation of vibration effects especially in columns immersed into flowing liquids. The building component surface has ribs or profiles for vibration elimination. The ribbing system suppresses forces generated by vortices, especially when alternating vortices are generated. The ribs or profiles are distributed irregularly on the circumference of the building component. These ribs or profiles can form successive ring arrangements in which the ribs or profiles of one ring arrangement are staggered relative to another one. Ribs can be arranged in helical pattern while maintaining staggered arrangements.
FR7629852A 1976-10-05 1976-10-05 Vibration suppressor for water immersed column - has staggered random ribs in helical path to break up regular vortices Withdrawn FR2367148A1 (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
FR7629852A FR2367148A1 (en) 1976-10-05 1976-10-05 Vibration suppressor for water immersed column - has staggered random ribs in helical path to break up regular vortices
DE19772744277 DE2744277A1 (en) 1976-10-05 1977-10-01 PROCESS FOR NEUTRALIZING DISASTERING VIBRATION EFFECTS ON STRUCTURES IMMERSED IN LIQUIDS AND DEVICE FOR IMPLEMENTING THEM
NO773369A NO773369L (en) 1976-10-05 1977-10-03 PROCEDURES FOR NEUTRALIZING IRREGULAR SWITCHING PHENOMENONS ON COLUMNS SUBMITTED IN MOVEMENTS IN MOVEMENT AND FACILITIES FOR CARRYING OUT THE PROCEDURE
BR7706624A BR7706624A (en) 1976-10-05 1977-10-04 PROCESS OF NEUTRALIZATION OF PARASITE OSCILLATING PHENOMENA ON COLUMNS IMMERSED IN MOVEMENT FLUIDS AND DEVICE FOR EXECUTION OF THE MENTIONED PROCESS
ES463014A ES463014A1 (en) 1976-10-05 1977-10-07 Vibration suppressor for water immersed column - has staggered random ribs in helical path to break up regular vortices

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7629852A FR2367148A1 (en) 1976-10-05 1976-10-05 Vibration suppressor for water immersed column - has staggered random ribs in helical path to break up regular vortices

Publications (1)

Publication Number Publication Date
FR2367148A1 true FR2367148A1 (en) 1978-05-05

Family

ID=9178372

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7629852A Withdrawn FR2367148A1 (en) 1976-10-05 1976-10-05 Vibration suppressor for water immersed column - has staggered random ribs in helical path to break up regular vortices

Country Status (5)

Country Link
BR (1) BR7706624A (en)
DE (1) DE2744277A1 (en)
ES (1) ES463014A1 (en)
FR (1) FR2367148A1 (en)
NO (1) NO773369L (en)

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2535757A1 (en) * 1982-11-10 1984-05-11 Gulf Applied Tech ANTI-SCRAPING METHOD AND APPARATUS
WO1995027101A1 (en) * 1994-04-04 1995-10-12 Shell Internationale Research Maatschappij B.V. Vortex induced vibration suppression
WO2000068514A1 (en) * 1999-05-07 2000-11-16 Shell Internationale Research Maatschappij B.V. Partial helical strake system for vortex-induced-vibration suppression
WO2002095278A1 (en) * 2001-05-18 2002-11-28 Crp Group Limited Protection of underwater elongate members
US6948884B2 (en) * 2001-03-14 2005-09-27 Technip France Vortex-induced vibration reduction device for fluid immersed cylinders
WO2006110658A1 (en) * 2005-04-11 2006-10-19 Shell Internationale Research Maatschappij B.V. Systems and methods for reducing vibrations
WO2012076018A1 (en) * 2010-12-10 2012-06-14 Envision Energy (Denmark) Aps Run-up deflector for an off-shore wind turbine
WO2016205900A1 (en) 2015-06-26 2016-12-29 Amog Technologies Pty Ltd A cylindrical element adapted to reduce vortex-induced vibration and/or drag
WO2016205898A1 (en) 2015-06-26 2016-12-29 Amog Technologies Pty Ltd A flow modification device, system, and method
WO2017165926A1 (en) 2016-04-01 2017-10-05 Amog Technologies Pty Ltd A flow modification device having helical strakes and a system and method for modifying flow

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA2630957A1 (en) * 2005-07-12 2007-01-18 Robie Bonilla Gris Covering element for protecting structures against scouring and drag force
WO2007008054A1 (en) * 2005-07-12 2007-01-18 Instituto Politécnico Nacional Mould for creating artificial roughness that protects against scouring
CN104233946B (en) * 2014-09-22 2016-01-13 长安大学 A kind of pneumatic structure suppressing bridge column type suspension rod Vortex-excited vibration

Cited By (24)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2535757A1 (en) * 1982-11-10 1984-05-11 Gulf Applied Tech ANTI-SCRAPING METHOD AND APPARATUS
WO1995027101A1 (en) * 1994-04-04 1995-10-12 Shell Internationale Research Maatschappij B.V. Vortex induced vibration suppression
GB2303898A (en) * 1994-04-04 1997-03-05 Shell Int Research Vortex induced vibration suppression
GB2303898B (en) * 1994-04-04 1998-02-18 Shell Int Research Vortex induced vibration suppression
WO2000068514A1 (en) * 1999-05-07 2000-11-16 Shell Internationale Research Maatschappij B.V. Partial helical strake system for vortex-induced-vibration suppression
GB2363763A (en) * 1999-05-07 2002-01-09 Shell Int Research Partial helical strake system for vortex-induced-vibration suppression
GB2363763B (en) * 1999-05-07 2002-10-09 Shell Int Research Partial helical strake system for vortex-induced-vibration suppression
US6561734B1 (en) 1999-05-07 2003-05-13 Shell Oil Company Partial helical strake for vortex-induced-vibrationsuppression
US6948884B2 (en) * 2001-03-14 2005-09-27 Technip France Vortex-induced vibration reduction device for fluid immersed cylinders
WO2002095278A1 (en) * 2001-05-18 2002-11-28 Crp Group Limited Protection of underwater elongate members
US7406923B2 (en) 2005-04-11 2008-08-05 Shell Oil Company Systems and methods for reducing vibrations
GB2438797A (en) * 2005-04-11 2007-12-05 Shell Internat Res Maatschhapp Systems and methods for reducing vibrations
WO2006110658A1 (en) * 2005-04-11 2006-10-19 Shell Internationale Research Maatschappij B.V. Systems and methods for reducing vibrations
GB2438797B (en) * 2005-04-11 2010-09-01 Shell Internat Res Maatschhapp Systems and methods for reducing vibrations in a cylindrical element by the use of strake elements
WO2012076018A1 (en) * 2010-12-10 2012-06-14 Envision Energy (Denmark) Aps Run-up deflector for an off-shore wind turbine
US10323665B2 (en) 2015-06-26 2019-06-18 Amog Technologies Pty Ltd Flow modification device, system, and method
WO2016205898A1 (en) 2015-06-26 2016-12-29 Amog Technologies Pty Ltd A flow modification device, system, and method
EP3314083A4 (en) * 2015-06-26 2019-03-06 Amog Technologies PTY Ltd A flow modification device, system, and method
EP3314082A4 (en) * 2015-06-26 2019-03-20 Amog Technologies PTY Ltd A cylindrical element adapted to reduce vortex-induced vibration and/or drag
WO2016205900A1 (en) 2015-06-26 2016-12-29 Amog Technologies Pty Ltd A cylindrical element adapted to reduce vortex-induced vibration and/or drag
US10648589B2 (en) 2015-06-26 2020-05-12 Amog Technologies Pty Ltd Cylindrical element adapted to reduce vortex-induced vibration and/or drag
AU2016282215B2 (en) * 2015-06-26 2021-07-15 Amog Technologies Pty Ltd A cylindrical element adapted to reduce vortex-induced vibration and/or drag
WO2017165926A1 (en) 2016-04-01 2017-10-05 Amog Technologies Pty Ltd A flow modification device having helical strakes and a system and method for modifying flow
US11359651B2 (en) 2016-04-01 2022-06-14 Amog Technologies Pty Ltd Flow modification device having helical strakes and a system and method for modifying flow

Also Published As

Publication number Publication date
NO773369L (en) 1978-04-06
ES463014A1 (en) 1978-07-16
DE2744277A1 (en) 1978-04-06
BR7706624A (en) 1978-11-07

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Legal Events

Date Code Title Description
ST Notification of lapse