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1. WO2020112232 - TUNED MASS ABSORBER ASSEMBLY AND SYSTEM FOR ATTENUATING FREQUENCY SPECIFIC VIBRATIONAL ENERGY

Publication Number WO/2020/112232
Publication Date 04.06.2020
International Application No. PCT/US2019/053496
International Filing Date 27.09.2019
IPC
F16F 7/116 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
7Vibration-dampers; Shock-absorbers
10using inertia effect
104the inertia member being resiliently mounted
116on metal springs
CPC
F16F 1/3814
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
16ENGINEERING ELEMENTS AND 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 rubber or other material having high internal friction, ; e.g. thermoplastic elastomers
38with a sleeve of elastic material between a rigid outer sleeve and a rigid inner sleeve or pin ; , i.e. bushing-type
3807characterised by adaptations for particular modes of stressing
3814characterised by adaptations to counter axial forces
F16F 7/108
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
FSPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
7Vibration-dampers; Shock-absorbers
10using inertia effect
104the inertia member being resiliently mounted
108on plastics springs
F16F 7/116
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
FSPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
7Vibration-dampers; Shock-absorbers
10using inertia effect
104the inertia member being resiliently mounted
116on metal springs
Applicants
  • RAYTHEON COMPANY [US]/[US]
Inventors
  • MILLER, Brett A.
  • MARTINEZ, Michael
Agents
  • JOHNSON, Christopher L.
Priority Data
16/205,09029.11.2018US
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) TUNED MASS ABSORBER ASSEMBLY AND SYSTEM FOR ATTENUATING FREQUENCY SPECIFIC VIBRATIONAL ENERGY
(FR) ENSEMBLE ABSORBEUR DE MASSE ACCORDÉ ET SYSTÈME D'ATTÉNUATION D'ÉNERGIE VIBRATOIRE SPÉCIFIQUE À UNE FRÉQUENCE
Abstract
(EN)
A tuned mass absorber assembly comprises a mass structure, and a flexure system comprising first and second flexure sections supported by, and extending in opposing directions from, the mass structure. The flexure system can comprise flexure section mounts situated at distal ends of the first and second flexure sections, respectively, and that are operable to mount the tuned mass absorber assembly to a structure subject to induced vibrations therein. A mass of the mass structure and a stiffness of the flexure system can be tuned to attenuate vibrations at a specific input frequency generated in response to induced vibrations of the structure. A system can comprise a vibration isolator attached to a chassis, and supporting a payload (sensors(s)) and isolating the payload from vibrations. A tuned mass absorber assembly can be mounted to the vibration isolator for attenuating vibrations at a specific input frequency that may affect the payload.
(FR)
L'invention concerne un ensemble absorbeur de masse accordé comprenant une structure de masse, et un système de flexion comprenant des première et seconde sections de flexion portées par la structure de masse et s'étendant dans des directions opposées à partir de cette dernière. Le système de flexion peut comprendre des montures de sections de flexion situées au niveau des extrémités distales des première et seconde sections de flexion, respectivement, et pouvant être utilisées pour monter l'ensemble absorbeur de masse accordé sur une structure soumise à des vibrations provoquées à son intérieur. Une masse de la structure de masse et une rigidité du système de flexion peuvent être accordées afin d'atténuer des vibrations à une fréquence d'entrée spécifique produite en réponse à des vibrations provoquées de la structure. Un système peut comprendre un isolateur de vibrations fixé à un châssis, et portant une charge utile (capteur(s)) et isolant la charge utile des vibrations. Un ensemble absorbeur de masse accordé peut être monté sur l'isolateur de vibrations afin d'atténuer des vibrations à une fréquence d'entrée spécifique pouvant affecter la charge utile.
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