### Abstract

The damping efficiency of a particle damper with hollow steel particles in a nonlinear vibrating system is investigated experimentally and analytically. The apparent of density of the hollow steel particle is almost the same as the plastics, but the melting point of the hollow steel particle higher than that of plastics. Therefore, it is expected that particle damping with hollow steel particles can perform at elevated temperatures where plastic particle damping cannot. The experimental study shows that significant damping can be achieved through used of hollow particle damping as well as plastic particle one. An analytical solution based on the discrete element method (DEM) is presented. DEM tracks the motion of granules based upon the direct numerical simulation integration of Newton's equations. Comparison between the experimental and analytical results shows that accurate estimates of the rms response of a primary system can be obtained. The height of granular materials and the clearance ratio were calculated by the gravity method. It is shown that the response of the primary system is independent of the area of the damper cavity in the case of that the mass ratio and the clearance ratio are the same.

Original language | English |
---|---|

Pages (from-to) | 4058-4067 |

Number of pages | 10 |

Journal | Nihon Kikai Gakkai Ronbunshu, C Hen/Transactions of the Japan Society of Mechanical Engineers, Part C |

Volume | 77 |

Issue number | 783 |

Publication status | Published - 2011 |

### Fingerprint

### Keywords

- Damper
- Discrete element method
- Granular materials
- Gravity method
- Hollow steel particles
- Nonlinear vibration
- Numerical analysis
- Particle damping
- Vibration control device

### ASJC Scopus subject areas

- Mechanical Engineering
- Mechanics of Materials
- Industrial and Manufacturing Engineering

### Cite this

*Nihon Kikai Gakkai Ronbunshu, C Hen/Transactions of the Japan Society of Mechanical Engineers, Part C*,

*77*(783), 4058-4067.

**Analysis of particle damping with hollow steel particles.** / Nogami, Takeshi; Takahashi, Shotaro; Saeki, Masato.

Research output: Contribution to journal › Article

*Nihon Kikai Gakkai Ronbunshu, C Hen/Transactions of the Japan Society of Mechanical Engineers, Part C*, vol. 77, no. 783, pp. 4058-4067.

}

TY - JOUR

T1 - Analysis of particle damping with hollow steel particles

AU - Nogami, Takeshi

AU - Takahashi, Shotaro

AU - Saeki, Masato

PY - 2011

Y1 - 2011

N2 - The damping efficiency of a particle damper with hollow steel particles in a nonlinear vibrating system is investigated experimentally and analytically. The apparent of density of the hollow steel particle is almost the same as the plastics, but the melting point of the hollow steel particle higher than that of plastics. Therefore, it is expected that particle damping with hollow steel particles can perform at elevated temperatures where plastic particle damping cannot. The experimental study shows that significant damping can be achieved through used of hollow particle damping as well as plastic particle one. An analytical solution based on the discrete element method (DEM) is presented. DEM tracks the motion of granules based upon the direct numerical simulation integration of Newton's equations. Comparison between the experimental and analytical results shows that accurate estimates of the rms response of a primary system can be obtained. The height of granular materials and the clearance ratio were calculated by the gravity method. It is shown that the response of the primary system is independent of the area of the damper cavity in the case of that the mass ratio and the clearance ratio are the same.

AB - The damping efficiency of a particle damper with hollow steel particles in a nonlinear vibrating system is investigated experimentally and analytically. The apparent of density of the hollow steel particle is almost the same as the plastics, but the melting point of the hollow steel particle higher than that of plastics. Therefore, it is expected that particle damping with hollow steel particles can perform at elevated temperatures where plastic particle damping cannot. The experimental study shows that significant damping can be achieved through used of hollow particle damping as well as plastic particle one. An analytical solution based on the discrete element method (DEM) is presented. DEM tracks the motion of granules based upon the direct numerical simulation integration of Newton's equations. Comparison between the experimental and analytical results shows that accurate estimates of the rms response of a primary system can be obtained. The height of granular materials and the clearance ratio were calculated by the gravity method. It is shown that the response of the primary system is independent of the area of the damper cavity in the case of that the mass ratio and the clearance ratio are the same.

KW - Damper

KW - Discrete element method

KW - Granular materials

KW - Gravity method

KW - Hollow steel particles

KW - Nonlinear vibration

KW - Numerical analysis

KW - Particle damping

KW - Vibration control device

UR - http://www.scopus.com/inward/record.url?scp=84859593271&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84859593271&partnerID=8YFLogxK

M3 - Article

AN - SCOPUS:84859593271

VL - 77

SP - 4058

EP - 4067

JO - Nihon Kikai Gakkai Ronbunshu, C Hen/Transactions of the Japan Society of Mechanical Engineers, Part C

JF - Nihon Kikai Gakkai Ronbunshu, C Hen/Transactions of the Japan Society of Mechanical Engineers, Part C

SN - 0387-5024

IS - 783

ER -