Pulley type tuned mass eddy current damper
A technology of eddy current damper and tuning quality, which is applied in the direction of protective buildings/shelters, bridges, shockproof, etc., and can solve the problems of large starting friction force of lever mechanism, static elongation of shrinking spring, large static elongation, etc. Achieve the effects of expanding the applicable frequency range, reducing the static elongation of the spring, and simple and durable structure
A technology of eddy current damper and tuning quality, which is applied in the direction of protective buildings/shelters, bridges, shockproof, etc., and can solve the problems of large starting friction force of lever mechanism, static elongation of shrinking spring, large static elongation, etc. Achieve the effects of expanding the applicable frequency range, reducing the static elongation of the spring, and simple and durable structure
CN113789879AActive Publication Date: 2021-12-14湖南省潇振工程科技有限公司
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[0041] Such as Figure 1-Figure 5 As shown, a pulley-type tuned mass eddy current damper is mainly composed of five parts: a spring assembly, a pulley assembly, a mass block assembly, an eddy current damping unit, and a bracket. Spring pull plate 1, tension spring 2, spring hook 3 form. The pulley assembly is made up of movable pulley 4, lanyard fixed pulley 5, common fixed pulley 6, and stay rope 7 forms. The mass block assembly is formed by stacking a plurality of mass blocks 8 . The eddy current damping unit is composed of a magnetic back plate 9 , a magnetic steel 10 , a magnetic steel dust cover 11 and a conductor plate 12 . Support is made up of top plate 13, base plate 14, vertical support rod 15, lateral support rod 16, fixed block 17.
[0042] Wherein, the vertical support bar 15 connects the top plate 13 and the bottom plate 14 to form a stable support system. The magnetically permeable backplane 9 is fixedly connected to the base plate 14 through a fixing block ...
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The invention relates to an eddy current damper, in particular to a pulley type tuned mass eddy current damper. The pulley type tuned mass eddy current damper is characterized by comprising a mass block, the mass block is connected with a spring assembly through a pull rope and a pulley block, the pulley block comprises a movable pulley, the spring assembly is fixedly connected with the lower part of the movable pulley, the mass block is fixedly connected with a magnetic steel back plate and magnetic steel, and the mass block can drive the magnetic steel and a conductor plate to move relative to each other and generate eddy current. According to the pulley type tuned mass eddy current damper, the pulley block is additionally arranged, and the corresponding relation between static elongation and frequency is changed through the pulley block, so that the static elongation of the spring is reduced. Therefore, the tuned mass eddy current damper can break through the limitation of installation space, and the applicable frequency range of the tuned mass eddy current damper is expanded.
Description
technical field [0001] The invention relates to an eddy current damper, in particular to a pulley type tuned mass eddy current damper. Background technique [0002] At present, the mainstream technology for suppressing the vibration of large engineering structures is still the most reliable passive control, and the main forms are tuned mass dampers (Tuned Mass Damper, TMD for short) and various energy-dissipating dampers. For the vibration of a specific frequency, the use of TMD can often achieve a better vibration reduction effect. [0003] TMD is mainly composed of mass unit, stiffness unit, damping unit, etc. It converts the structural vibration into the vibration of the TMD mass block by tuning its own frequency to make it close to the structural frequency, and dissipates energy through the damping unit to achieve the purpose of vibration reduction . [0004] However, there is a static elongation in the vertical TMD (that is, the spring is deformed under the action of ...
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Patent Timeline
14 Dec 2021
Publication
CN113789879A
- IPC
- E04B1/98; E04H9/02; E01D19/00
- CPC
- E04B1/98; E04H9/0215; E04H9/023; E01D19/00
- Inventors
- 张弘毅; 黄祺洲