FR3113891B1 - Damping system for landing gear, lander having such a landing gear and aircraft. - Google Patents

Damping system for landing gear, lander having such a landing gear and aircraft. Download PDF

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Publication number
FR3113891B1
FR3113891B1 FR2009077A FR2009077A FR3113891B1 FR 3113891 B1 FR3113891 B1 FR 3113891B1 FR 2009077 A FR2009077 A FR 2009077A FR 2009077 A FR2009077 A FR 2009077A FR 3113891 B1 FR3113891 B1 FR 3113891B1
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FR
France
Prior art keywords
landing gear
damping system
damper
piston
lander
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.)
Active
Application number
FR2009077A
Other languages
French (fr)
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FR3113891A1 (en
Inventor
Kamel Abdelli
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.)
Airbus Helicopters SAS
Original Assignee
Airbus Helicopters SAS
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 Airbus Helicopters SAS filed Critical Airbus Helicopters SAS
Priority to FR2009077A priority Critical patent/FR3113891B1/en
Publication of FR3113891A1 publication Critical patent/FR3113891A1/en
Application granted granted Critical
Publication of FR3113891B1 publication Critical patent/FR3113891B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B64—AIRCRAFT; AVIATION; COSMONAUTICS
    • B64C—AEROPLANES; HELICOPTERS
    • B64C25/00—Alighting gear
    • B64C25/32—Alighting gear characterised by elements which contact the ground or similar surface 
    • B64C25/58—Arrangements or adaptations of shock-absorbers or springs
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F9/00—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium
    • F16F9/32—Details
    • F16F9/53—Means for adjusting damping characteristics by varying fluid viscosity, e.g. electromagnetically
    • F16F9/535—Magnetorheological [MR] fluid dampers

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Fluid-Damping Devices (AREA)
  • Vibration Prevention Devices (AREA)

Abstract

La présente invention concerne un système d’amortissement (15) configuré pour un train d’atterrissage. Ce système d’amortissement (15) comprend un amortisseur (20) muni d’un piston (25) comprenant au moins une première communication hydraulique (40) coopérant avec un obturateur configuré pour s’ouvrir lors d’une compression dudit amortisseur (20). Le piston (25) comporte au moins une deuxième communication hydraulique (50), ledit piston (25) portant au moins une bobine électrique (55) disposé autour de la deuxième communication hydraulique (50), ledit amortisseur (20) comprenant un fluide magnéto-rhéologique (60), ledit système d‘amortissement comprenant un contrôleur (70) configuré pour ne pas alimenter électriquement ladite au moins une bobine électrique (55) par défaut et dans une condition normale d’atterrissage (CONDN) et pour alimenter électriquement ladite au moins une bobine électrique (55) dans une condition anormale d’atterrissage (CONDA). Figure d’abrégé : figure 2The present invention relates to a damping system (15) configured for a landing gear. This damping system (15) comprises a damper (20) provided with a piston (25) comprising at least one first hydraulic communication (40) cooperating with a shutter configured to open upon compression of said damper (20 ). The piston (25) comprises at least a second hydraulic communication (50), said piston (25) carrying at least one electric coil (55) disposed around the second hydraulic communication (50), said damper (20) comprising a magneto fluid -rheological (60), said damping system comprising a controller (70) configured not to electrically supply said at least one electric coil (55) by default and in a normal landing condition (CONDN) and to electrically supply said at least one electric coil (55) in an abnormal landing condition (CONDA). Abstract Figure: Figure 2

FR2009077A 2020-09-08 2020-09-08 Damping system for landing gear, lander having such a landing gear and aircraft. Active FR3113891B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR2009077A FR3113891B1 (en) 2020-09-08 2020-09-08 Damping system for landing gear, lander having such a landing gear and aircraft.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR2009077 2020-09-08
FR2009077A FR3113891B1 (en) 2020-09-08 2020-09-08 Damping system for landing gear, lander having such a landing gear and aircraft.

Publications (2)

Publication Number Publication Date
FR3113891A1 FR3113891A1 (en) 2022-03-11
FR3113891B1 true FR3113891B1 (en) 2023-02-24

Family

ID=74347171

Family Applications (1)

Application Number Title Priority Date Filing Date
FR2009077A Active FR3113891B1 (en) 2020-09-08 2020-09-08 Damping system for landing gear, lander having such a landing gear and aircraft.

Country Status (1)

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FR (1) FR3113891B1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115352622B (en) * 2022-08-01 2024-08-16 大连海事大学 Unmanned aerial vehicle landing buffer device based on magneto-rheological technology

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5284330A (en) * 1992-06-18 1994-02-08 Lord Corporation Magnetorheological fluid devices
DE4433056C2 (en) * 1994-09-16 1998-01-29 Mannesmann Sachs Ag Vibration dampers for motor vehicles
ITMI20032379A1 (en) 2003-12-04 2005-06-05 Isocomp S P A DYNAMIC ELECTRO-HYDRAULIC SEMI-DENSIVE DAMPING DEVICE PERFORMED BY MEANS OF LOCOMOTION.
US9186951B2 (en) * 2013-12-13 2015-11-17 GM Global Technology Operations LLC Height adjustable damping device
US9708057B2 (en) 2014-02-24 2017-07-18 The Boeing Company Active landing gear damper
RU2619884C2 (en) * 2015-10-19 2017-05-19 Федеральное государственное бюджетное образовательное учреждение высшего профессионального образования "Брянский государственный технический университет" Hydraulic shock absorber with electric generator
FR3047231B1 (en) 2016-01-29 2018-01-05 Airbus Helicopters CONTROL METHOD FOR CONTROLLING A FLOATING SYSTEM FOR AN AIRCRAFT, FLOAT SYSTEM AND AIRCRAFT
US10711861B1 (en) * 2019-03-19 2020-07-14 The United States Of America As Represented By The Secretary Of The Navy Controllable oleo-pneumatic damper using magnetorheological fluid
CN111102316A (en) * 2019-12-31 2020-05-05 上海应用技术大学 Controllable damping self-induction adjusting vibration attenuation bracket based on magnetorheological damper

Also Published As

Publication number Publication date
FR3113891A1 (en) 2022-03-11

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