TY - JOUR
T1 - Efficiency of vibrational energy dissipation by tuned rolling-cylinder dampers
AU - Tsuda, Ryota
AU - Saeki, Masato
PY - 2019/12/22
Y1 - 2019/12/22
N2 - The damping efficiency of a tuned rolling-cylinder damper in a horizontally vibrating system under sinusoidal excitation was investigated experimentally and analytically. The damper is an auxiliary system and consists of some rotary bodies placed on a circular arc surface attached to the primary system. The friction force between rotary bodies is a source of energy dissipation of the auxiliary system. In an experimental approach, the effects of the size of rotary bodies, the number of rotary bodies with different radii used in combination and the amplitude of external excitation on the damping performance were investigated. In an analytical approach, an analytical model based on the discrete element method was constructed. The validity of the analytical model was confirmed by comparing experimental and analytical results. In addition, the effect of the radius of the circular arc surface on the damping performance was examined analytically.
AB - The damping efficiency of a tuned rolling-cylinder damper in a horizontally vibrating system under sinusoidal excitation was investigated experimentally and analytically. The damper is an auxiliary system and consists of some rotary bodies placed on a circular arc surface attached to the primary system. The friction force between rotary bodies is a source of energy dissipation of the auxiliary system. In an experimental approach, the effects of the size of rotary bodies, the number of rotary bodies with different radii used in combination and the amplitude of external excitation on the damping performance were investigated. In an analytical approach, an analytical model based on the discrete element method was constructed. The validity of the analytical model was confirmed by comparing experimental and analytical results. In addition, the effect of the radius of the circular arc surface on the damping performance was examined analytically.
KW - Collision
KW - Discrete element method
KW - Numerical analysis
KW - Passive vibration absorber
KW - Tuned rolling-cylinder dampers
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U2 - 10.1016/j.jsv.2019.114977
DO - 10.1016/j.jsv.2019.114977
M3 - Article
AN - SCOPUS:85072838906
SN - 0022-460X
VL - 463
JO - Journal of Sound and Vibration
JF - Journal of Sound and Vibration
M1 - 114977
ER -