A particle-damped inertial-capacitive vibration damper that combines the principles of particle damping and inertial-capacitive vibration reduction.

CN224282141UActive Publication Date: 2026-05-26YUNNAN UNIV
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
YUNNAN UNIV
Filing Date
2025-05-30
Publication Date
2026-05-26

AI Technical Summary

Technical Problem

Traditional tuned mass dampers (TMDs) are highly sensitive to frequency, have large mass blocks that occupy space, are inconvenient to install, and have high maintenance costs, thus failing to meet the requirements for efficient vibration reduction.

Method used

Combining the principles of particle damping and inertial capacitance vibration reduction, a novel particle damping inertial capacitance vibration damper is designed. Through the combination of a multi-cavity particle damper, gear set, spring and fixed plate, vibration energy conversion and inertial capacitance amplification mass effect are achieved, reducing equipment size, widening the vibration reduction frequency band and enhancing energy consumption efficiency.

Benefits of technology

It achieves efficient vibration reduction across the entire frequency band, significantly reduces equipment size, lowers maintenance costs, adapts to different vibration frequency requirements, and improves the safety and economy of building structures.

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Abstract

This utility model discloses a particle-damped inertial-capacitive vibration damper that combines particle damping and inertial-capacitive vibration reduction principles. It is characterized by comprising: four multi-cavity particle dampers symmetrically arranged on a fixed plate, each multi-cavity particle damper having a passive gear connected to its center; a gear set consisting of three passive gears and one driving gear, the gear rack being flexibly disposed on the surface of the fixed plate; each multi-cavity particle damper being a cylindrical structure with at least two layers and six independent cavities, its separators being driven to rotate by the passive gears; four springs symmetrically arranged on both sides of the fixed plate, the spring axes being aligned with the direction of gear rack movement; the entire device is encased in a metal shell, with the springs pre-installed outside the shell. This utility model aims to address the shortcomings of traditional tuned mass dampers, such as excessive sensitivity to vibration frequencies, large space requirements due to their large mass, inconvenient installation, and high maintenance costs, by proposing an innovative solution.
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