Research on tuned ferrofluid dynamic vibration absorber based on throttle valve opening
Source abstract
Abstract
In this paper, a tuned ferrofluid dynamic vibration absorber(TFDVA) based on the secondary buoyancy of ferrofluid is designed. The dynamic vibration absorber consists of ferrofluid, cylindrical, and annular permanent magnets, circulating pipes, throttle valves, and so on. The vibration energy generated by the system is consumed by the viscous shear motion of the cylindrical permanent magnet. By controlling the throttle valve of the circulating pipe, the energy dissipation characteristics can be adjusted to improve the vibration reduction performance. The effects of throttle valve opening, shell angle, and circulating pipe size on the vibration reduction performance of the dynamic vibration absorber model are studied. The simulation and experimental results show that the TFDVA designed in this paper has a good vibration reduction effect. Through the brass plate cantilever beam experiment, the vibration reduction rate of the dynamic vibration absorber is more than 96.4 %, and the maximum vibration reduction rate can reach 97.02 %. It has great significance to the study of vibration reduction of spacecraft solar panels with similar low frequency and small amplitude vibration.
Source: expertdata · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Vibration Control and Rheological Fluids · Characterization and Applications of Magnetic Nanoparticles · Fluid Dynamics and Vibration Analysis
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
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