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Realization of a semi-active
control equipment with a low energy consumption
is expected from development of controlling valve
devices and the control system. In this study, characteristics
of a continuously controlled vale is analyzed by
both calculations and experiments. With the aim
of the practical application of the system, critical
conditions for optimal design of the damping valve
are proposed with respect to the valve opening,
responces and control period of the controller.
From experimental study of the eggectiveness of
the system, it is confirmed to have a stable controlling
characteristics for a vibration suppression system
using an apparatus of two degrees of freedom as
well as for a chasis controlled experimental vehicle.
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