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1. US20200173511 - Tuned Mass Absorber Assembly and System for Attenuating Frequency Specific Vibrational Energy

Office United States of America
Application Number 16205090
Application Date 29.11.2018
Publication Number 20200173511
Publication Date 04.06.2020
Publication Kind A1
IPC
F16F 7/108
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
108on plastics springs
F16F 1/38
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
38with a sleeve of elastic material between a rigid outer sleeve and a rigid inner sleeve or pin
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
Applicants Raytheon Company

Inventors Brett A. Miller
Michael Martinez
Title
(EN) Tuned Mass Absorber Assembly and System for Attenuating Frequency Specific Vibrational Energy
Abstract
(EN)

A tuned mass absorber assembly comprises a mass structure, and a flexure system comprising first and second flexure sections (e.g., cross bar flexures) 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 (e.g., of an airplane), 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.

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