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Damper for runing dissipation of energy of electromagnetic eddy current

An electromagnetic eddy current and damper technology, applied in asynchronous induction clutches/brakes, building components, shockproof, etc., can solve the problems of instability and high cost, and achieve the effect of reducing the area of ​​use, saving manpower and costs, and being convenient to manufacture.

Inactive Publication Date: 2003-05-07
TONGJI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Among them, the electro-hydraulic servo type works well, the damping coefficient is convenient and adjustable, and relatively stable, but it is expensive and requires good maintenance and repair.
The damping coefficient of the hydraulic damping type is affected by temperature and oil quality over time, and cannot be stabilized for a long time, so the best vibration reduction effect cannot be obtained for a long time

Method used

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  • Damper for runing dissipation of energy of electromagnetic eddy current
  • Damper for runing dissipation of energy of electromagnetic eddy current
  • Damper for runing dissipation of energy of electromagnetic eddy current

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0035] Embodiment: The mass vibrator is made of aluminum cooling fins, with a size of 80×60×80. A support 5 connected to an elastic steel rod 4 is installed at its flat end.

[0036] The magnetic material of the electromagnet is A3 steel, the size is 80×80×110, there are 5 notches, and the enameled wire with a diameter of 1mm is wound in multiple turns in the notches.

[0037]The elastic steel rod 4 is made of medium-carbon steel material with a rectangular cross-section, the cross-sectional size is 50×5, and the length is about 400. One end is connected to the mass vibrator, and the other end is fixed on the support.

[0038] The above mass vibrator, electromagnet, elastic steel rod, according to Image 6 Assemble into a TMD device. A total of two sets were manufactured, arranged in different directions (see Figure 5 ), installed on a 600×300 steel base plate with a thickness of 5mm. The coils of the two sets of electromagnets are connected in series and powered by a DC p...

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PUM

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Abstract

This invention relates to electromagnetic eddy power tuning damper composed of TMD quality vibrator, electromagnet or permanent magnet and flexible units, in which the magnet has many rabbets, wires on adjacent rabbets are winded in different direxctions froming multiple magnetic fields with quality vibrator inserted. One end of flexible unit is linked to the quality vibrator, the other is fixed by the support. The said structures can be set on a same baseplate parallel to each other in opposite directions. This device can design the damper coefficient at the maximum reaching the maximujm resulting in anti-wind, anti-earthquake for high buildings and keeping stable for a longtime.

Description

technical field [0001] The invention belongs to the technical field of building construction, and in particular relates to an electromagnetic eddy current energy consumption tuned damper capable of controlling the vibration of a high-rise building or a towering structure. Background technique [0002] In recent years, with the advancement of technology, a large number of high-strength and light-weight building materials have been used. Buildings have become taller and taller, and the structure has become softer. At the same time, the damping of the structure has been continuously reduced. Under the action of dynamic loads such as strong winds and earthquakes, high-rise and towering structures will generate relatively strong vibrations, which will not only make users feel uncomfortable, but also easily cause psychological panic. At the same time, excessive vibrations will also lead to failure of building structures and destruction. In order to overcome the defects brought by...

Claims

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Application Information

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IPC IPC(8): E04B1/98H02K49/04
Inventor 方重楼梦麟
Owner TONGJI UNIV