During the last two decades, active and semi-active control of civil engineering structures has made rapid progress in Japan. This technology has become widely used in earthquake engineering design, and more than 50 control systems have already been applied to buildings in Japan. The 1995 Hyogo-ken Nanbu Earthquake opened a door to positive development of semi-actively-controlled buildings agai...

This paper presents coordinated compensation schemes between active and semi-active actuators in suspension control system. Generally systems, have been adopted to generate a force calculated by controller. However, actual vehicles physical constraints such as maximum force, bandwidth force-velocity limitation. On the other hand, actuator can be good alternative one view of despite it cannot an...

His professional expertise encompasses control engineering and dynamics mainly in theoretical aspects. His current research topics are the semi-active control of civil structures, the interaction between system identification and controller design, the integrated design of structural and control systems and the application of control engineering and robotics to human motion analysis. RMS value ...

Different from previous researches which mostly focused on linear response control of seismically excited high-rise buildings, this study aims to control nonlinear seismic response of high-rise buildings. To this end, a semi-active control strategy, in which H∞ control algorithm is used and magneto-rheological dampers are employed for an actuator, is presented to suppress the nonlinear vibratio...