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Tuning mass damping device

A technology of vibration damping device and quality tuning, applied in building components, anti-vibration and other directions, can solve the problems of difficult adjustment of spring unit stiffness, reduce the effectiveness of TMD, frequency imbalance, etc., achieve convenient and effective stiffness and quality adjustment, reduce requirements, and use materials easy effect

Active Publication Date: 2014-07-09
CHINA AVIATION PLANNING & DESIGN INST GRP
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] TMD is sensitive to the tuning frequency, and frequency misalignment will significantly reduce the effectiveness of TMD, and even bring adverse effects on the controlled structure. Once the spring unit of the existing TMD vibration damping device is installed, it is difficult to adjust the stiffness, which is prone to frequency misalignment.

Method used

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Embodiment Construction

[0019] While the present invention will be fully described with reference to the accompanying drawings containing preferred embodiments of the invention, it should be understood before proceeding that those skilled in the art may modify the invention described herein while obtaining the technical effects of the present invention. Therefore, it should be understood that the above description is a broad disclosure for those skilled in the art, and its content is not intended to limit the described exemplary embodiments of the present invention.

[0020] Specific examples of the vertically tuned mass damping device are described below.

[0021] Such as Figure 1-3 As shown, the vertical tuning mass damping device includes: a profile 10 with a web 11, the profile 10 is fixed on the structural member 20 to be damped; a leaf spring 30 passes through the web of the profile 10 in the horizontal direction plate 11, and arranged symmetrically with respect to the web 11; mass blocks 40 ...

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Abstract

A tuning mass damping device comprises a section bar, a plate spring, mass blocks arranged at two ends of the plate spring and a damping portion. The section bar is provided with a web and fixed on a structural member to be damped or forms a part of the structural member to be damped. The plate spring penetrates the web of the section bar along the horizontal direction and is arranged symmetrically with the web as the symmetry center. One end of the damping portion is linked to a corresponding mass block in the vertical moving direction of the mass block, and the other end of the damping portion is fixedly connected with the structural member to be damped. The tuning mass damping device further comprises a rigidity limiting portion for limiting the free length of elastic moving of the plate spring in the vertical direction. By means of the device, section steel beam height space can be used effectively, requirements for building clear height are reduced, use rate of a building space is improved, and applicability of the damping device is improved.

Description

technical field [0001] The invention relates to the field of structure damping control, in particular to a tuned mass damping device. Background technique [0002] The tuned mass damper (TMD) adopts the vibration reduction strategy of tuned vibration absorption. It is a vibration reduction strategy that relies on imposing an inertial mass on a certain part of the structure, and is equipped with a spring unit and a damping unit. The vibration mode is controlled by the inertial mass and the main structure. A vibration damping device that absorbs and consumes the vibration energy of the main structure through resonance. [0003] Because TMD has little impact on building functions, occupies only a small part of the building space, and is easy to install, repair and replace, it is widely used in pedestrian bridges, vertical vibration control of long-span structures, and wind-induced response control of high-rise structures. engineering application prospects. [0004] TMD is sen...

Claims

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Application Information

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IPC IPC(8): E04B1/98
Inventor 马伯涛付仰强葛家琪张玲王明珠管志忠
Owner CHINA AVIATION PLANNING & DESIGN INST GRP
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