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1. WO2020239753 - ANTIVIBRATION KIT-OF-PARTS AND PARTS THEREFOR, AIRFOIL STRUCTURE AND AIRCRAFT PROVIDED THEREWITH

Publication Number WO/2020/239753
Publication Date 03.12.2020
International Application No. PCT/EP2020/064550
International Filing Date 26.05.2020
IPC
B64C 9/00 2006.01
BPERFORMING OPERATIONS; TRANSPORTING
64AIRCRAFT; AVIATION; COSMONAUTICS
CAEROPLANES; HELICOPTERS
9Adjustable control surfaces or members, e.g. rudders
B64C 9/30 2006.01
BPERFORMING OPERATIONS; TRANSPORTING
64AIRCRAFT; AVIATION; COSMONAUTICS
CAEROPLANES; HELICOPTERS
9Adjustable control surfaces or members, e.g. rudders
30Balancing hinged surfaces, e.g. dynamically
B64C 13/38 2006.01
BPERFORMING OPERATIONS; TRANSPORTING
64AIRCRAFT; AVIATION; COSMONAUTICS
CAEROPLANES; HELICOPTERS
13Control systems or transmitting systems for actuating flying-control surfaces, lift-increasing flaps, air brakes, or spoilers
24Transmitting means
38with power amplification
F16F 1/26 2006.01
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
16ENGINEERING ELEMENTS OR UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
FSPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
1Springs
02made of steel or other material having low internal friction; Wound, torsion, leaf, cup, ring or the like springs, the material of the spring not being relevant
18Leaf springs
26Attachments or mountings
F16F 1/368 2006.01
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
16ENGINEERING ELEMENTS OR UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
FSPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
1Springs
36made of plastics, e.g. rubber; made of material having high internal friction
366made of fibre reinforced plastics
368Leaf springs
F16F 3/02 2006.01
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
16ENGINEERING ELEMENTS OR UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
FSPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
3Spring units consisting of several springs, e.g. for obtaining a desired spring characteristic
02with springs made of steel or of other material having low internal friction
Applicants
  • AIRBUS OPERATIONS GMBH [DE]/[DE]
Inventors
  • BERTOLINI, Ivano
  • LÜTTMANN, Henrik
  • WESTBROEK, Wim
Priority Data
10 2019 114 313.628.05.2019DE
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) ANTIVIBRATION KIT-OF-PARTS AND PARTS THEREFOR, AIRFOIL STRUCTURE AND AIRCRAFT PROVIDED THEREWITH
(FR) KIT DE PIÈCES ANTI-VIBRATIONS ET PIÈCES CORRESPONDANTES, STRUCTURE DE SURFACE PORTANTE ET AÉRONEF ÉQUIPÉ DE CELLE-CI
Abstract
(EN)
In order to reduce vibration of movable airfoil structures (38), such as rudders (22), elevators (24), and ailerons (20), a spring device (48), a leaf spring (50) for example, is mounted to an airfoil mounting structure (28), such as a vertical tail plane (16), horizontal tail plane (18) or the wings (14), such that the spring device (48) exerts a force on a cam device (80), which transforms the spring force (F) into an airfoil torque (M). The airfoil torque (M) is applied to the airfoil structure (38) and thus reduces a risk of vibration or flutter. The cam device (80) is configured to redirect the spring force (F) such that when the airfoil structure (38) is moved in a first direction (108), torque decreases and when moved in the opposite second direction (110) the torque is zero.
(FR)
Afin de réduire les vibrations de structures mobiles (38) de surface portante, telles que des gouvernes de direction (22), des gouvernes de profondeur (24) et des ailerons (20), un dispositif à ressort (48), un ressort à lames (50) par exemple, est monté sur une structure de montage (28) de surface portante, telle qu'un stabilisateur vertical (16), un stabilisateur horizontal (18) ou les ailes (14), de sorte que le dispositif à ressort (48) exerce une force sur un dispositif de came (80), qui transforme la force de rappel (F) en un couple (M) de surface portante. Le couple (M) de surface portante est appliqué sur la structure (38) de surface portante et réduit ainsi un risque de vibration ou de flottement. Le dispositif de came (80) est conçu pour rediriger la force de rappel (F) de sorte que lorsque la structure (38) de surface portante est déplacée dans une première direction (108), le couple diminue et lorsqu'elle est déplacée dans la seconde direction opposée (110), le couple est nul.
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