Examination of Particle Behavior in Container on Multi-Particle Collision Damper
Abstract
:1. Introduction
2. Calculation Method
Equations of Motion for Particles
Material | Particle | Container |
---|---|---|
Carbon Steel | Acrylic | |
Density (kg/m3) | 7873 | - |
Young’s modulus (MPa) | 2.07 × 105 | 4.90 × 103 |
Poisson’s ratio | 0.26 | 0.32 |
3. Experimental Apparatus
4. Results of Experiments and Results of Calculations
4.1. Particle Behavior
4.2. Effect of Input Amplitude of Container
4.3. Effect of Frequency of Container
4.4. Effect of Particle Size
5. Conclusions
- (1)
- Effective collision occurs depending on the combination of particle size and filling ratio. The frequency of particles colliding with the side wall of the container is higher than the reciprocating frequency of the container.
- (2)
- When the flow condition of the particles is the jumping motion, the particle brings about the effect to the side wall. Inversely, when balanced, the effect is small.
- (3)
- A simple system using a piezoelectric element is an effective method to obtain the effects of particle collisions.
- (4)
- The behavior of particles and flow conditions using DEM simulations agreed well with experimental results. It is possible to evaluate the effect of particle collisions using DEM.
Author Contributions
Conflicts of Interest
References
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Takahashi, Y.; Sekine, M. Examination of Particle Behavior in Container on Multi-Particle Collision Damper. Machines 2015, 3, 242-255. https://doi.org/10.3390/machines3030242
Takahashi Y, Sekine M. Examination of Particle Behavior in Container on Multi-Particle Collision Damper. Machines. 2015; 3(3):242-255. https://doi.org/10.3390/machines3030242
Chicago/Turabian StyleTakahashi, Yoshihiro, and Mika Sekine. 2015. "Examination of Particle Behavior in Container on Multi-Particle Collision Damper" Machines 3, no. 3: 242-255. https://doi.org/10.3390/machines3030242