Ball screw type semi-active inerter device based on lever

Abstract

The invention discloses a ball screw type semi-active inerter device based on a lever. The ball screw type semi-active inerter device comprises a rotating flywheel, multiple mass blocks are evenly distributed along the circumference of the rotating flywheel, and can do radial reciprocating motion relative to the rotating flywheel, are hinged to a lantern ring through connecting rods, and can rotate relative to the lantern ring; a first driving unit is used for driving the lantern ring to move up and down so as to drive the mass blocks to move; a guide unit is used for guiding the movement of the lantern ring; a ball screw unit is arranged, the upper end of a lead screw is connected with the rotating flywheel, and the lower end of a lead screw nut is connected with multiple lever mechanisms with adjustable force arms; and the lever mechanisms are fixedly supported on a fixing plate through supporting rods hinged to the lever mechanisms, the inner sides of the lever mechanisms are hinged to the lead screw nut, force arm adjusting units are arranged on the outer sides of the lever mechanisms, the force arm size relative to the supporting rods can be adjusted, and meanwhile the lead screw nut is driven to move up and down so as to drive the lead screw to rotate, and the rotating flywheel is further driven to rotate. The adjusting range of the inerter coefficient is enlarged.

Description

technical field [0001] The invention belongs to the field of semi-active inertial capacity, and in particular relates to a lever-based ball screw type semi-active inertial capacity device. Background technique [0002] Inertia is a two-terminal-one-port mechanical element based on the electromechanical similarity theory. The relative acceleration at both ends is proportional to the force applied to both ends. The proportional coefficient is called inertial coefficient, which has the same dimension as mass. Inertia has been applied in various mechanical systems, such as automobile suspension system and so on. Inertia can produce the same damping effect as a mass several times its own mass. The suspension combined with inertia, spring and damper is used in F1 racing cars, which greatly improves its handling performance; the train suspension with inertia can improve the ride comfort and driving safety of the train; in the vehicle suspension system, the inertia It can improve ...

AI Technical Summary

Problems solved by technology

[0004] The object of the present invention is to provide a ball screw type semi-active inertial device based on a lever, which solves the problem of the adjustment range of the inertial coefficient due to the limitation of the radius of the flywheel in the existing semi-active inertial device based on an adjustable moment of inertia flywheel It is subject to certain restrictions, and its applicable vibration frequency range is limited, which increases the adjustment range of the inertia coefficient of the ball screw type semi-active inertial capacity

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