File:Fig. 1. Schematic Demonstration of Structure-AOD System.tif
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DescriptionFig. 1. Schematic Demonstration of Structure-AOD System.tif |
English: Fig. 1. Schematic Demonstration of Accelerated oscillator damper |
Date | |
Source | Yonggang Tan, Ruyi Guan and Zhe Zhang, Performance of accelerated oscillator dampers under seismic loading, Advances in Mechanical Engineering, 2018, Vol. 10(4) 1–10. DOI: 10.1177/1687814018767510 |
Author | Prowise2018 |
Accelerated oscillator damper
The accelerated oscillator damper (AOD) is composed of secondary mass, transmission device, spring, damper and connecting rod. The vibration of the primary structure is transferred by a transmission device to amplify the velocity of the primary structure to generate higher speed of the secondary mass. The transmission device is a rack and pinion system comprising a pair of gears which convert linear motion into rotational motion. The pinion or gear set amplifies the speed and then transferred to the secondary mass by another rack. The secondary mass is connected to the static structure with spring and damper. So the secondary mass can absorb the kinetic energy from the primary structure. While increasing the transmission ratio, the secondary mass gets more kinetic energy from the primary structure. Due to the principle of conservation of energy, the more kinetic energy the secondary mass gets from the whole system, the more kinetic energy the building will lose. In this way, the vibration of the primary structure can be attenuated.
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