Method for damping vibrations acting on object to be protected e.g. building, involves partially absorbing static dead weight of vibrating mass by magnetic forces that act between elements of vibration damper

Abstract

The method involves transmitting vibrations acting on an object to be protected to a cubic vibrating mass (1) that is inertially held between springs (2, 2') e.g. tension springs or pressure springs. Static dead weight of the vibrating mass is partially absorbed by magnetic forces that act between elements of a horizontally acting vibration damper, where the vibrating mass is completely made of steel. The vibrating mass is formed as a disk shaped body. Viscoelastic dampers are connected with the vibrating mass, so that one of the dampers is attached to the springs. An independent claim is also included for a horizontally acting vibration damper formed as a spring mass system.

Description

technical field [0001] The invention relates to a method for damping vibrations by means of a horizontally acting spring-mass system and a corresponding horizontally acting vibration damper. With regard to vibration dampers, the present invention relates in this regard to an arrangement or a device by means of which, due to its inertia, a vibration damper moves back and forth in its vibration position with a phase offset relative to the vibration acting on the object to be protected Mass or vibrating mass to reduce the vibration generated on the object to be protected, such as a house, a building such as a bridge, or on equipment. Background technique [0002] Vibration absorbers of this type have been known for a long time in various designs. Regardless of the particular specific design, they basically comprise the aforementioned mass (vibrating mass) suitably connected to the object to be protected in a vibratory manner and possibly a plurality of dampers. In order to fo...

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Problems solved by technology

On the other hand, however, devices in which the vibrating mass is mounted on a plurality of sliding bearings or rolling bearings are relatively expensive due to the high demands placed on the bearings on the bearings with as low friction as possible.

Furthermore, such bearings are subject to wear, so that they must be maintained at least frequently and, if necessary, sometimes replaced

Furthermore, despite the low-friction mounting, the friction that is still present has a negative effect not only on the frequency but also on the damping of the shock absorber and thus on the efficiency of the shock absorber

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