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US 11,193,552 B2Granted
Frequency tuned damper and a method for manufacturing such a damper
AssigneeVibracoustic Forsheda AB
InventorBengt-Göran Gustavsson
Life of this patent
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Abstract
A frequency tuned damper including at least one elastic element, and a method for the assembly of such a damper are disclosed. The damper comprises a deflection limiting mechanism arranged to prevent excessive movements of the elastic element if the damper is subjected to large external transient forces. The at least one elastic element forms part of the deflection limiting mechanism.
Claims18
A frequency tuned damper comprising:
- a console configured to be connected to a vibrating surface, vibrations of which are to be dampened, said console comprising at least one mounting opening defined by an associated mounting rim;
- a vibration body;
- and
- at least one elastic element having a longitudinal axis and comprising a base portion having a first circumferentially extending mounting groove in which the associated mounting rim is received to connect the elastic element to the console, and a top portion which is located at a distance along the longitudinal axis from the base portion, and is connected to the vibration body,
- wherein the elastic element includes a circumferentially extending outer impact surface, which is provided at a location between the base portion and the vibration body, and
- wherein the console further includes at least one deflection limiter which is integrally formed with the associated mounting rim and extends circumferentially around the impact surface at a distance therefrom, said deflection limiter being arranged to limit the degree of movement of the elastic element transversally to the longitudinal axis when the damper is subjected to an external transient force sufficient to bring the impact surface into contact with the deflection limiter, thereby preventing excessive movements of the elastic element transversally to the longitudinal axis.
3 more elements
A method for use in manufacturing a frequency tuned damper, comprising:
- inserting an elastic element, which has a base portion and a top portion located at a distance along a longitudinal axis from the base portion, through a mounting opening of a console to a mounted position in which the base portion is connected to the console, and in which a deflection limiter of the console extends circumferentially about and at a distance from an outer impact surface of the elastic element, wherein the deflection limiter and the impact surface in said mounted position together form a deflection limiting mechanism to prevent excessive movements of the elastic element transversally of the longitudinal axis;
- and
- attaching the top portion of the elastic element to a vibration body, wherein the elastic element and the vibration body together form a frequency tuned spring-mass system.
Dependencies are inferred from the claim text.