An adaptive multi-dimensional multi-stage vibration damping device

Abstract

The invention discloses an adaptive multi-dimensional and multi-stage damping device, which makes up for the defects of traditional single method control, organically combines passive control and semi-active control to form multi-level control, which can not only make up for passive control in terms of strength and frequency bandwidth In addition, it can ensure the adaptability and adjustability of the control, and achieve a good damping control effect under the premise of saving energy input. The technical solution is: including a work box, a sliding mechanism is installed on the top of the work box, and the sliding mechanism can move along the work box; the sliding mechanism is connected to the inertial mass body through a telescopic column placed inside the work box; The inner pick-up plate, the bottom of the inner pick-up plate is connected with several pressure springs; the side wall of the working box is lower than the position of the inner pick-up plate, and piezoelectric ceramics are laid; the working box has multiple inclined surfaces, and the inclined surfaces are equipped with multiple layers that can A rotating D-shaped roller; under the action of an external force, the inertial mass body can move along the D-shaped roller.

Description

technical field [0001] The invention relates to the field of vibration control of towering and long-span structures, in particular to an adaptive multi-dimensional and multi-stage vibration damping device. Background technique [0002] In traditional civil engineering, structural performance is usually improved through optimal design, relying on the energy dissipation capacity of the structure itself to absorb the energy of external environmental loads. However, with the concentration of urban population, tight land use and the development of modern society, towering and long-span structures develop rapidly. These structures usually have the characteristics of high flexibility and high quality. It is difficult to meet the structural safety and comfort by resisting external dynamic loads by the structure itself. degree requirements. Vibration control technology can effectively increase the energy dissipation of structures, thereby improving the applicability of structures un...

AI Technical Summary

Problems solved by technology

Active control has a strong ability to control both high-frequency and low-frequency vibrations of the structure, but it is difficult to achieve due to the high requirements for external energy input

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