A semi-active positive and negative stiffness parallel self-coordinated vibration damping device

A technology of positive and negative stiffness and vibration damping device, which is applied in building types, buildings, building components, etc., can solve the problems that the vibration damping device cannot achieve the vibration damping effect, failure and other problems, and can increase the damping adjustment range, increase the number of collisions, The effect of increasing energy consumption

Active Publication Date: 2021-04-27
SHANDONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, most of the positive and negative stiffness damping devices are designed based on a fixed load-bearing mass. When the load-bearing mass changes, the damping device cannot achieve the best vibration damping effect, and may even fail beyond the design allowable range.

Method used

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  • A semi-active positive and negative stiffness parallel self-coordinated vibration damping device
  • A semi-active positive and negative stiffness parallel self-coordinated vibration damping device
  • A semi-active positive and negative stiffness parallel self-coordinated vibration damping device

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Embodiment Construction

[0033] It should be pointed out that the following detailed description is exemplary and intended to provide further explanation to the present application. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs.

[0034] It should be noted that the terminology used here is only for describing specific implementations, and is not intended to limit the exemplary implementations according to the present application. As used herein, unless the invention clearly states otherwise, the singular form is also intended to include the plural form. In addition, it should also be understood that when the terms "comprising" and / or "comprising" are used in this specification, their Indicate the presence of features, steps, operations, means, components and / or combinations thereof;

[0035]For the convenience of description, if the words "up", "down", "left" a...

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Abstract

The invention discloses a semi-active positive and negative stiffness parallel self-coordinated damping device, which comprises a protective cylinder, in which a positive and negative stiffness parallel damping mechanism and a roller ball damping mechanism are arranged; the positive and negative stiffness The parallel damping mechanism includes an air spring and a magneto-rheological damping device; the air spring is provided with a movable baffle, and is connected to the groove body through a rigid rod and a connecting rod; the lower part of the groove body has a hole and a A ball screw pair, the ball screw passes through the ball nut and extends to the inside of the magnetorheological damping device at both ends of the groove body; the ball screw inside the magnetorheological damping device is provided with a plurality of blades, and the damping chamber The inner space is filled with magnetorheological fluid. The roller ball damping mechanism includes a groove body, a roller, a partition and energy-dissipating roller balls; the roller is placed in the groove of the groove body, the inside of the roller is hollow and a partition is provided, and each compartment A large number of energy-consuming rolling balls are placed inside.

Description

technical field [0001] The invention belongs to the field of vibration control of civil engineering, and in particular relates to a semi-active positive and negative stiffness parallel self-coordination damping device, which is mainly used in controlling the vibration response of high-rise buildings and towering structures. Background technique [0002] Due to the rapid advancement of urbanization, the forms of structures are becoming more and more diverse. High-rise, long-span and flexible structures are important directions for future building development, and the vibration response under wind loads and earthquakes will inevitably increase. The traditional method of strengthening the performance of components can no longer meet the safety and economic requirements of seismic design. Therefore, vibration reduction control technology provides an effective new method for buildings to resist wind or earthquake disasters. [0003] Vibration reduction control technology mainly a...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E04B1/98E04H9/02E04H9/14
CPCE04B1/98E04H9/02E04H9/14
Inventor 刘俊才田利徐静付朝阳
Owner SHANDONG UNIV
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