TY - JOUR
T1 - Vibration reduction of a high-Tc superconducting magnetic levitation system with an autoparametric vibration absorber
AU - Taguchi, Daisuke
AU - Sakaguchi, Ryunosuke
AU - Sugiura, Toshihiko
PY - 2011/6/1
Y1 - 2011/6/1
N2 - This research proposes reduction in the amplitude of a primary resonance generated in high-Tc superconducting (HTSC) magnetic levitation system using an autoparametric vibration absorber. In general mechanical systems, reduction of the primary resonance or some nonlinear oscillations have been successfully studied using a kind of a nonlinear vibration absorber called an autoparametric vibration absorber through nonlinear coupling, which is called internal resonance. In this study, we assume that the rigid body vibrates only in the vertical direction z. On the rigid body a pendulum is fixed as an autoparametric vibration absorber. Through the nonlinear coupling that is generated, the amplitude of z is reduced. The governing equations in z and 9 directions are derived, and the possibility of energy transfer due to internal resonance is suggested. From the equations, analytical results predict that the amplitude of z decreases when internal resonance occurs. Numerical results confirm this prediction.
AB - This research proposes reduction in the amplitude of a primary resonance generated in high-Tc superconducting (HTSC) magnetic levitation system using an autoparametric vibration absorber. In general mechanical systems, reduction of the primary resonance or some nonlinear oscillations have been successfully studied using a kind of a nonlinear vibration absorber called an autoparametric vibration absorber through nonlinear coupling, which is called internal resonance. In this study, we assume that the rigid body vibrates only in the vertical direction z. On the rigid body a pendulum is fixed as an autoparametric vibration absorber. Through the nonlinear coupling that is generated, the amplitude of z is reduced. The governing equations in z and 9 directions are derived, and the possibility of energy transfer due to internal resonance is suggested. From the equations, analytical results predict that the amplitude of z decreases when internal resonance occurs. Numerical results confirm this prediction.
KW - Autoparametric vibration absorber
KW - Electromagnetic force
KW - High-Tc superconducting levitation
KW - Nonlinear coupling
UR - http://www.scopus.com/inward/record.url?scp=79957879227&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=79957879227&partnerID=8YFLogxK
U2 - 10.1109/TASC.2010.2091246
DO - 10.1109/TASC.2010.2091246
M3 - Article
AN - SCOPUS:79957879227
VL - 21
SP - 1538
EP - 1542
JO - IEEE Transactions on Applied Superconductivity
JF - IEEE Transactions on Applied Superconductivity
SN - 1051-8223
IS - 3 PART 2
M1 - 5643193
ER -