A friction-type two-way tuned mass damper

Abstract

The invention belongs to the field of tuning mass dampers, and particularly relates to a friction type bidirectional tuning mass damper which comprises an installation frame, a mass block, a plurality of elastic damping devices and a plurality of axial friction damping devices. The mass block, the elastic damping devices and the axial friction damping device are arranged in the installation frame. The elastic damping devices are arranged between the mass block and the installation frame and symmetrically arranged at the two ends in the transverse direction of the mass block and the two ends in the longitudinal direction of the mass block. The axial friction damping devices are arranged between the mass block and the installation frame and symmetrically arranged at the two ends in the transverse direction of the mass block and the two ends in the longitudinal direction of the mass block. Elastic limiting devices are arranged between the axial friction damping devices and the installation frame. The elastic damping devices are arranged between the axial friction damping devices and the mass block. The elastic damping devices, the axial friction damping devices and the elastic limiting devices are located in the same center axis. The friction type bidirectional tuning mass damper is simple in structure, low in cost and capable of controlling vibration in different directions.

Description

technical field [0001] The invention belongs to the field of tuned mass dampers, and in particular relates to a friction-type two-way tuned mass damper. Background technique [0002] Due to its simple structure, low cost and reliable performance, the tuned mass damper is the most widely used structural control device in engineering. The vibration reduction control principle of the tuned mass damper device is: connect the TMD to the main structure, and transfer the energy of the main structure to the TMD by controlling the mode resonance of the inertial mass and the main structure, so as to achieve the purpose of suppressing the vibration of the main structure. [0003] At present, the control of engineering tuned mass dampers is mostly one tuned mass damper controlling one frequency and one direction, which is not very convenient for application. And at present, suspended tuned mass dampers are often used in engineering to control horizontal vibration. By adjusting the leng...

AI Technical Summary

Problems solved by technology

However, in many cases, due to space or technical reasons, the application of the simple pendulum will be limited, and the tuned mass damper itself has the disadvantages of narrow damping frequency band, and the additional damper is expensive.

For train carriages, ships and other fields, not only will they be subjected to lateral vibration and longitudinal vibration, but also simultaneous lateral and longitudinal vibrations will occur. However, there is no tuned mass damper in the prior art that can simply and effectively solve this type of comprehensive vibration.

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