An experimental model for the analysis of energy dissipation in particle dampers
An experimental model for the analysis of energy dissipation in particle dampers
复制标题
粒子阻尼器能量耗散分析的实验模型
DOI：
10.1002/pamm.201900171
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发表时间：
2019
期刊：
影响因子：
--
通讯作者：
Seifried
中科院分区：
文献类型：
--
作者：
Seifried
颗粒减振是一种很有前途的被动减振技术，但由于其尺寸复杂，在技术上应用较少。建立了一个实验模型来研究阻尼器的能量耗散，而不考虑底层结构。该试验台由一个具有自由-自由边界条件的质点箱组成，该质点箱由加速度控制振动器激励。通过复功率求出了损耗因子和能量耗散。颗粒阻尼器可以在较宽的频率和加速度范围内进行分析。用不同的颗粒数表示颗粒阻尼器在不同激励范围内的高电势。
Particle damping is a very promising passive damping technique, however, it is still rarely used in technical applications due to its complex dimensioning. An experimental model is developed in order to investigate the energy dissipation of the dampers regardless of the underlying structure. The testbed consists of a particle box with a free‐free boundary condition which is excited by an acceleration controlled shaker. The loss factor and the energy dissipation are obtained via the complex power. The particle damper can be analyzed over a wide frequency and acceleration range. Different particle numbers are used showing the high potential of particle dampers for different excitation ranges.