Device, method and structure for multi-stage adaptive composite inertial capacity vibration damping

Abstract

The invention provides a multi-stage self-adaptive compound inertial vibration reduction device, method and civil engineering structure. Among them, the multi-stage self-adaptive compound inertial vibration damping device includes a mass body including a telescopic box that can move along the Y direction, and a plurality of telescopic plates placed along the Y direction and able to move along the X direction are arranged inside, and the telescopic plates pass through Linkage spring connection, the outermost expansion plate is connected with the first-level guide rail through the tuning spring, so as to realize the self-adaptive collision of the collision ball between the expansion plates in the X direction; The sliding frame and piston are filled with magneto-rheological fluid, the piston can slide along the rack on the inner wall of the energy consumption box, and the two ends of the energy consumption box are provided with excitation coils; the transmission mechanism includes a transmission plate, the bottom of which is fixed on the rack, and the transmission The plate is connected to the inner wall of the working box through a return spring; a displacement sensor is also installed on the transmission plate to monitor the displacement of the transmission plate, and is connected with the excitation coil through an electromagnetic control circuit.

Description

technical field [0001] The invention belongs to the field of vibration control of towering and large-span structures, and in particular relates to a multi-stage self-adaptive compound inertial vibration damping device, method and structure. Background technique [0002] The statements in this section merely provide background information related to the present invention and do not necessarily constitute prior art. [0003] With the development of high-rise and long-span structures towards diversified functions and complex structures, the vibration of structures under environmental loads is becoming more and more serious. Unfavorable vibrations will affect the performance and life of structures, and vibration reduction control measures can effectively solve the problem. Safety issues during the entire life of engineering structures to reduce the impact of disasters. Among them, the dynamic vibration absorption type vibration reduction device achieves the purpose of dynamic v...

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Problems solved by technology

In addition, the inventors found that in the collision energy dissipation technology, the collision gap has a great influence on the energy dissipation effect, but most of the collision energy dissipation technologies currently used are fixed collision gaps, and it is impossible to adjust the collision according to the different degrees of vibration response of the structure. clearance, which reduces the effective utilization of the collision energy-dissipating device

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