Inerter unit and spring unit parallel connection ternary vibration reducing device and design and assembling method

Abstract

The invention belongs to the technical field of structure vibration control and particularly relates to an inerter unit and spring unit parallel connection ternary vibration reducing device and a design and assembling method. The device comprises a spring unit, a damping unit and an inerter unit. The spring unit and the inerter unit are connected in parallel, and then the spring unit and the inerter unit are connected with the damping unit in series to form a ternary vibration reducing structure. By means of the inerter unit and spring unit parallel connection ternary vibration reducing deviceand the design and assembling method, two sets of ball screw transmission systems are adopted for achieving the inerter unit and spring unit parallel connection ternary vibration reducing structure,a turning effect can be achieved on damping force, the energy consumption capability of the damping unit is sufficiently developed, and the energy consumption and vibration reducing efficiency of thevibration reducing device is improved. In addition, an assembly technology is adopted, and the beneficial effects that adjusting is easy, durability is good, and the energy consumption capability is high are achieved.

Description

technical field [0001] The invention belongs to the technical field of structural vibration control, and in particular relates to a ternary damping device, a design and an assembly method of a parallel inertia mass and spring unit. Background technique [0002] In recent years, the theory of structural negative stiffness vibration control and the development of passive and adaptive dampers with parallel "negative stiffness spring units" have provided new theoretical methods and technical means for improving the effect of structural vibration control; the "Inerter" with mass amplification effect "(two-node inertial mass unit, referred to as "inertial mass unit") provides a new basic unit for the research and development of the damper, and the configuration of the damper has been further enriched, and finally formed a system based on the "damping unit-spring unit-inertial unit" The rudimentary form of the structural ternary passive vibration damping theory. Studies have shown...

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Problems solved by technology

[0005] According to literature and patent review, some scholars have carried out relevant research on the following three structural forms of ternary damping devices: 1) Wen (Design and Evaluation of Tuned Inerter-Based Dampers for the Seismic Control of MDOF Structures) adopts H 2 The gradient method obtained the optimal parameter optimization of TVMD and TID applied to the vibration damping of multi-degree-of-freedom structural systems; 2) Ikago (Seismic control of single-degree-of-freedom structure using tuned viscous mass damper) carried out TVMD Vibration control test; 3) Asai (Outrigger tuned inertial mass electromagnetic transducers for high-rise buildings subject to long period earthquakes) proposed a physical map of a TEMD device; 4) Lazar (Using An Inerter-based Device for Structural Vibration Suppression) proposed a 5) Giaralis and Taflanidis (Optimal Tuned Mass-damper-inerter (TMDI) Design for Seismically Excited MDOF Structures with Model Uncertainties Based on Reliability Criteria) adopted the reliability method to optimize the parameters of TMDI and TID; 6) Publication No. CN 107419945 A proposed a ternary damping device in series with viscous damping, tension-compression spring and inertial flywheel; but the above scholars None of the studies and explorations have been carried out on the ternary vibration damping device with parallel inertial and spring units

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