The invention belongs to the technical field of energy dissipation and shock absorption of
engineering structures, and provides a self-balancing inertial
damper adopting a right-hand and left-hand thread lead screw. The self-balancing inertial
damper comprises the right-hand and left-hand thread lead screw, a
magnet disc, a conductor disc, permanent magnets, double-headed
flange cylinders, feed screw nuts and the like; a right-hand threaded section and a left-hand threaded section are arranged on the left side and the right side of the right-hand and left-hand thread lead screw correspondingly, provided with the feed screw nuts in a sleeved mode correspondingly and connected with bearings of a fixed support; the
magnet disc and the conductor disc are arranged in pairs, the
magnet disc is provided with the permanent magnets, and the magnet disc and the permanent magnets are fixedly connected with the feed screw nuts through the double-headed
flange cylinders and do not make contact withthe right-hand and left-hand thread lead screw; and through reciprocating of the right-hand and left-hand thread lead screw on the axis, the magnet disc and the conductor disc always relatively rotate to generate an electric vortex effect, and shock absorption control of the structure can be achieved. By adopting right-hand and left-hand thread lead screw transmission, the purposes of inertial
synergy and damping
synergy can be achieved, meanwhile, the self-balancing performance of the lead screw is achieved, the mounting requirements for the two both ends of the
damper can be relaxed, and the self-balancing inertial damper can also be applied to a pure tension
system, and has good
engineering value.