EP1329565A1 - Dynamischer pendulartiger Stossdämpfer - Google Patents

Dynamischer pendulartiger Stossdämpfer Download PDF

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Publication number
EP1329565A1
EP1329565A1 EP02290090A EP02290090A EP1329565A1 EP 1329565 A1 EP1329565 A1 EP 1329565A1 EP 02290090 A EP02290090 A EP 02290090A EP 02290090 A EP02290090 A EP 02290090A EP 1329565 A1 EP1329565 A1 EP 1329565A1
Authority
EP
European Patent Office
Prior art keywords
pendulum
spring
mass
stiffness
movements
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Withdrawn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
EP02290090A
Other languages
English (en)
French (fr)
Inventor
Alain Serge Charles Lacroix
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.)
Individual
Original Assignee
Individual
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Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to EP02290090A priority Critical patent/EP1329565A1/de
Publication of EP1329565A1 publication Critical patent/EP1329565A1/de
Withdrawn legal-status Critical Current

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
    • E04H9/00—Buildings, groups of buildings or shelters adapted to withstand or provide protection against abnormal external influences, e.g. war-like action, earthquake or extreme climate
    • E04H9/02—Buildings, groups of buildings or shelters adapted to withstand or provide protection against abnormal external influences, e.g. war-like action, earthquake or extreme climate withstanding earthquake or sinking of ground
    • E04H9/021—Bearing, supporting or connecting constructions specially adapted for such buildings
    • E04H9/0215—Bearing, supporting or connecting constructions specially adapted for such buildings involving active or passive dynamic mass damping systems

Definitions

  • the prior art consisted in effect in suspending in the structure of loads located at the right of large amplitude displacements, including low frequency movement in phase opposition braked the assembly during of external excitations (pedestrian crossing, gusts of winds ).
  • the period of simple pendulum could only be adjusted by major modifications of its length and in a narrow area.
  • the present invention offers the advantage of guaranteeing resonance frequencies very low, matched to the movement characteristics of the structure to be treated, while remaining geometrically acceptable.
  • the calculation below shows that equal natural frequency, the device of the present invention offers a height reduced by 40% compared to that of a simple pendulum system.
  • the present invention consists of a secondary mass m1 subject to a spring L1 of stiffness k on which is hung a pendulum of length L2 supporting a mass m2.
  • the spring L1 can consist of a vertical steel blade embedded at its lower end and fitted in the upper part with an articulation, of mass m2 allowing the movement of the pendulum L2.
  • the period of the complex pendulum of the present invention is easily adjustable within a wide range by modifying the stiffness k of the spring L1.
  • Figure 1 models the system.
  • the function of the spring L1, articulated in the lower part for modeling, is symbolized by a horizontal fictitious spring of stiffness k ; under these conditions, the spring L1 is articulated in the lower part.
  • Figure 2 shows the installation of two dynamic absorbers according to the present invention, installed in the deck of a walkway to limit the horizontal frolics.
  • f1k 1 4 2 k11 m2 + m1 k22 + k11 2 m2 2 - 2 k11 m2 m1 k22 + m1 2 k22 2 + 4 m2 m1 k m2 m1 ⁇

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Environmental & Geological Engineering (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Vibration Prevention Devices (AREA)
EP02290090A 2002-01-15 2002-01-15 Dynamischer pendulartiger Stossdämpfer Withdrawn EP1329565A1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP02290090A EP1329565A1 (de) 2002-01-15 2002-01-15 Dynamischer pendulartiger Stossdämpfer

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP02290090A EP1329565A1 (de) 2002-01-15 2002-01-15 Dynamischer pendulartiger Stossdämpfer

Publications (1)

Publication Number Publication Date
EP1329565A1 true EP1329565A1 (de) 2003-07-23

Family

ID=8185701

Family Applications (1)

Application Number Title Priority Date Filing Date
EP02290090A Withdrawn EP1329565A1 (de) 2002-01-15 2002-01-15 Dynamischer pendulartiger Stossdämpfer

Country Status (1)

Country Link
EP (1) EP1329565A1 (de)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6709694B1 (en) 1999-02-04 2004-03-23 3M Espe Ag Coloring ceramics by way of ionic or complex-containing solutions
GB2473698A (en) * 2009-09-19 2011-03-23 Bruce Gregory Combination of Two Pendulum Motions with Dynamic Tuning
WO2012121694A1 (en) * 2011-03-04 2012-09-13 Moog Inc. Structural damping system and method
CN107250595A (zh) * 2014-12-05 2017-10-13 Esm能源及振动控制技术米奇有限公司 具有垂直弹簧装置的自适配摆式缓冲器

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6231735A (ja) * 1985-08-05 1987-02-10 Nippon Kokan Kk <Nkk> ２節振子式動吸振器
EP0474269A1 (de) * 1990-08-30 1992-03-11 Mitsubishi Jukogyo Kabushiki Kaisha Pendeldampfungsvorrichtung mit langer Periode
JPH06272427A (ja) * 1993-03-24 1994-09-27 Taisei Corp 複数モード制御マスダンパー
JPH08226252A (ja) * 1995-02-22 1996-09-03 Mitsubishi Heavy Ind Ltd 高層建造物用の可変剛性機構付き制振装置

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6231735A (ja) * 1985-08-05 1987-02-10 Nippon Kokan Kk <Nkk> ２節振子式動吸振器
EP0474269A1 (de) * 1990-08-30 1992-03-11 Mitsubishi Jukogyo Kabushiki Kaisha Pendeldampfungsvorrichtung mit langer Periode
JPH06272427A (ja) * 1993-03-24 1994-09-27 Taisei Corp 複数モード制御マスダンパー
JPH08226252A (ja) * 1995-02-22 1996-09-03 Mitsubishi Heavy Ind Ltd 高層建造物用の可変剛性機構付き制振装置

Non-Patent Citations (3)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 011, no. 215 (M - 606) 11 July 1987 (1987-07-11) *
PATENT ABSTRACTS OF JAPAN vol. 018, no. 691 (M - 1731) 26 December 1994 (1994-12-26) *
PATENT ABSTRACTS OF JAPAN vol. 1997, no. 01 31 January 1997 (1997-01-31) *

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6709694B1 (en) 1999-02-04 2004-03-23 3M Espe Ag Coloring ceramics by way of ionic or complex-containing solutions
GB2473698A (en) * 2009-09-19 2011-03-23 Bruce Gregory Combination of Two Pendulum Motions with Dynamic Tuning
WO2012121694A1 (en) * 2011-03-04 2012-09-13 Moog Inc. Structural damping system and method
CN107250595A (zh) * 2014-12-05 2017-10-13 Esm能源及振动控制技术米奇有限公司 具有垂直弹簧装置的自适配摆式缓冲器
CN107250595B (zh) * 2014-12-05 2019-12-31 Esm能源及振动控制技术米奇有限公司 具有垂直弹簧装置的自适配摆式缓冲器

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