TY - JOUR
T1 - Application of semi-active oil damper system to base isolation systems
AU - Kawai, Takashi
AU - Tsuyuki, Yasuo
AU - Inoue, Yutaka
AU - Takahashi, Osamu
AU - Oka, Koji
PY - 2002
Y1 - 2002
N2 - This paper deals with one of the applications of the Semi-Active Oil Damper system, which applies base isolation systems reducing the maximum acceleration. The theory of the Semi-Active Oil Damper system is based on Karnopp Theory. The theory has been actually now in use for a Semi-active suspension system of the latest Shinkansen (New trunk lines) trains to improve passenger's comfortable riding. Various experiments have been conducted using a single mass model whose weight is 15 ton on the shaking table. This model is supported by the rubber bearing. The natural frequency is 0.33 Hz of this system. Two Semi-Active Oil Damper were installed in the model and excited the table for one horizontal direction. The maximum damping force of each Semi-Active Oil Damper used for the model is 4.21 kN. The damper can change the damping coefficient by utilizing two solenoid valves. Therefore, the dynamic characteristic of the damping force has two modes. One is a hard damping coefficient and the other is a soft one. It was confirmed that the maximum acceleration of the Semi-Active Oil Damper system can be reduced more than 20% in comparison with the passive Oil Damper system in our tests.
AB - This paper deals with one of the applications of the Semi-Active Oil Damper system, which applies base isolation systems reducing the maximum acceleration. The theory of the Semi-Active Oil Damper system is based on Karnopp Theory. The theory has been actually now in use for a Semi-active suspension system of the latest Shinkansen (New trunk lines) trains to improve passenger's comfortable riding. Various experiments have been conducted using a single mass model whose weight is 15 ton on the shaking table. This model is supported by the rubber bearing. The natural frequency is 0.33 Hz of this system. Two Semi-Active Oil Damper were installed in the model and excited the table for one horizontal direction. The maximum damping force of each Semi-Active Oil Damper used for the model is 4.21 kN. The damper can change the damping coefficient by utilizing two solenoid valves. Therefore, the dynamic characteristic of the damping force has two modes. One is a hard damping coefficient and the other is a soft one. It was confirmed that the maximum acceleration of the Semi-Active Oil Damper system can be reduced more than 20% in comparison with the passive Oil Damper system in our tests.
UR - http://www.scopus.com/inward/record.url?scp=0036383907&partnerID=8YFLogxK
U2 - 10.1115/PVP2002-1431
DO - 10.1115/PVP2002-1431
M3 - Conference article
AN - SCOPUS:0036383907
SN - 0277-027X
VL - 445
SP - 49
EP - 54
JO - American Society of Mechanical Engineers, Pressure Vessels and Piping Division (Publication) PVP
JF - American Society of Mechanical Engineers, Pressure Vessels and Piping Division (Publication) PVP
IS - 2
T2 - Seismic Engineering -2002- (2002 ASME Prssure Vessels and Piping Conference)
Y2 - 5 August 2002 through 9 August 2002
ER -