VIBRATION CONTROLLING METHOD FOR STRUCTURE, STRUCTURE WITH VIBRATION CONTROL, VIBRATION CONTROL DEVICE, AND CONTROL POWER GENERATING DEVICE FOR VIBRATION CONTROL

摘要

PURPOSE: To make control of big output possible with small energy, and to improve safety by a method wherein a variable attenuator and an actuator are combined together. ;CONSTITUTION: A control power generating device 10 is constructed by arranging an actuator 30 with small output in parallel with a variable damper 20 in oil damper type, and by providing fixing parts 11, 12 that are common to both members. The variable damper 20 is so constructed that an adjustable valve 27 is provided in a passage 26 connecting hydraulic pressure chambers 24 and 25 in an oil damper. Response from a structure in an occasion of earthquake or the like is analyzed by a computer, and command value for control power is materialized in the form of damping force by controlling the degree of opening for the adjustable valve 27. In the case where the command value for control power and velocity of device in the variable damper 20 work contrary against each other, the actuator 30 is made to work for compensation and thereby optimum control power can be maintained.;COPYRIGHT: (C)1995,JPO