JPS58190718U - Vibration control device - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Brief explanation of drawings]

Figure 1 is a diagram showing the vibration state of a structure, Figure 2 is a vibration model diagram of a general mass damper, Figure 3 is a diagram showing the range of control force that can be damped by a conventional mass damper, and Figure 4 is a diagram of this vibration model. FIG. 5 is a block diagram of the controller shown in FIG. 4, which is a diagram showing an example according to consideration. In the figure, 1 is a vibrating body, 3 is an actuator, 4 is a movable mass, 8 is an accelerometer, and 9 is a controller. Note that the same reference numerals in the figures indicate the same or corresponding parts.

Claims (1)

[Scope of utility model registration request] A vibration control device comprising a vibration detecting means for a vibrating body that vibrates in response to an external force, and a movable mass that reciprocates via a controller and an actuator according to the detected amount of vibration, wherein the movable mass is connected to at least two or more movable masses. A plurality of movable masses each having a different mass are provided, and the controller includes a circuit for selecting one of the plurality of movable masses having the above-mentioned mass according to the magnitude of vibration, and a circuit for reciprocating the selected movable mass. An input circuit is provided to an actuator to generate a predetermined control force by selecting a movable mass having a mass corresponding to the amount of vibration generated in the vibrating body and reciprocating it. Vibration control device.