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Tuned mass damper frequency adjusting device and implementing method thereof

A technology of tuning mass damping and frequency adjustment, applied in bridge parts, building components, bridges, etc., to achieve the effect of large frequency adjustment range, precise adjustment and simple structure

Active Publication Date: 2016-03-02
NORTH CHINA UNIV OF WATER RESOURCES & ELECTRIC POWER
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, the existing adjustment methods of tuned mass damper frequency have certain deficiencies, and it is very necessary to develop an efficient method that can continuously adjust the frequency of tuned mass damper in a large range

Method used

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  • Tuned mass damper frequency adjusting device and implementing method thereof
  • Tuned mass damper frequency adjusting device and implementing method thereof
  • Tuned mass damper frequency adjusting device and implementing method thereof

Examples

Experimental program
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Effect test

Embodiment Construction

[0027] Embodiment 1 of the tuned mass damper frequency adjustment device of the present invention, such as Figure 1~3 As shown, a mass block 1 including a tuned mass damper, a helical compression spring 2, a viscous damper 3, a bottom plate 5 and a frequency adjustment device 4, the frequency adjustment device 4 includes a set of racks 6, gears 12, a flywheel 8, A pair of support bearings 9 and a rotating shaft 10, the mass block 1 is provided with through holes in the up and down direction, the upper part of the rack 6 passes through the mass block 1 and is fixed and assembled by two nuts 7 up and down the mass block 1, and the bottom plate 5 is provided with There is a reserved square hole corresponding to the through hole of the mass block 1, the lower part of the rack 6 passes through the reserved square hole, the support bearing 9 of the gear is fixedly connected to the bottom plate 5 of the tuning mass damper, and the rotating shaft 10 passes through the symmetrical The...

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Abstract

The invention belongs to the technical field of structure vibration control, particularly relating to a tuned mass damper frequency adjusting device and an implementing method thereof. The tuned mass damper frequency adjusting device comprises a bottom plate of a tuned mass damper, a mass block above the bottom plate and a linear movement-rotary movement transformation device, wherein the bottom plate is connected with the mass block through an elastic element; the linear movement-rotary movement transformation device is mounted between the mass block of the tuned mass damper and the bottom plate and comprises a transmission mechanism with racks and gears or a ball screw transmission mechanism; linear reciprocating movement of the mass block relative to the bottom plate is transformed into rotary movement of a rotating shaft by the linear movement-rotary movement transformation device; and a flywheel is fixedly mounted on the rotating shaft of the linear movement-rotary movement transformation device. The invention further provides a method for adjusting frequency by using the tuned mass damper frequency adjusting device. Frequency adjusting numerical values can be set accurately, the frequency is adjusted continuously and accurately, and the adjustment range is large.

Description

technical field [0001] The invention belongs to the technical field of structural vibration control, and in particular relates to a tuned mass damper frequency adjustment device and an implementation method thereof. Background technique [0002] According to the vibration characteristics of the structure, the vibration control technology of civil engineering structure can be divided into two categories: one is suitable for the installation of direct energy-consuming vibration-absorbing devices, such as cable-stayed, inter-story displacement control of building structures; the other is For engineering structures, such as long-span bridges, it is difficult to find a position with a large relative displacement inside the structure, and the direct energy-dissipating vibration-damping device generally needs to be installed inside the structure with a certain space, so that the energy-dissipating vibration-damping device has a certain relative displacement. The greater the relativ...

Claims

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Application Information

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IPC IPC(8): E04B1/98E01D19/04E01D19/00
CPCE01D19/00E01D19/041E04H9/0215
Inventor 汪志昊许艳伟赵顺波霍洪媛范宏宇皇幼坤陈银徐凯
Owner NORTH CHINA UNIV OF WATER RESOURCES & ELECTRIC POWER
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