Suspension type composite tuning vibration reduction device and method

A vibration damping device and suspension technology, which is applied in the direction of protective buildings/shelters, building components, building structures, etc., can solve the problems of reducing the vibration damping effect and not being able to dynamically adjust the vibration damping force of the natural vibration cycle, etc. To achieve the effect of improving stability, enhancing the effect of vibration reduction and energy consumption, and improving the effect of vibration control

Active Publication Date: 2021-10-19
POWERCHINA SEPCO1 ELECTRIC POWER CONSTR CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, the traditional suspended mass pendulum dampers are mostly passive vibration reduction, and cannot dynamically adjust the natural vibration

Method used

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  • Suspension type composite tuning vibration reduction device and method
  • Suspension type composite tuning vibration reduction device and method
  • Suspension type composite tuning vibration reduction device and method

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0029] Example 1:

[0030] This embodiment provides a suspension composite tuning damping device, such as figure 1 with figure 2 As shown, including the frame body 1, the energy consumption unit 12, a mass ball 11, a suspension mechanism, and a frame body 1 for supporting each component, and the structure can be set according to the actual installation requirements; the frame body 1 of the present embodiment is a rectangular frame, The suspension mechanism is disposed at the center of the frame body 1, and the first connecting member 2 is mounted at the top of the suspension mechanism. The first connector 2 is fixed by the first connector 2 and the transmission tower structure (e.g., the transmission rod tower); the mass ball 11 is mounted at the bottom of the suspension mechanism end.

[0031] The mass ball 11 is a metal solid ball, such as a ferrous solid ball, which provides a sufficiently large quality with as small volume as much as possible, facilitating providing a damping ...

Example Embodiment

[0045] Example 2:

[0046] This embodiment provides a suspended composite striped damping method, using the damping device described in Example, when the transmission tower structure occurs, causing a mass ball 11 swing; swinging mass ball 11 by driving the traction strip 14 Stretching the rotation shaft 22 and the blade 9 of the energy consumption unit 12 rotate, stirring the magnetoelectric fluid in the damping chamber 26.

[0047] The power supply coil 16 turns on the power, generates a magnetic field, change the strength of the magnetic field by changing the size of the current, thereby affecting the viscosity of the magnetoelectric fluid, and functions to adjust the damping force and energy consumption capability of the energy consumption unit. When the traction index 14 is pulled, the power-of-electric coil 16 of the corresponding energy consumption unit 12 turns on the power supply, generate damping force and energy consumption ability, when the traction index is disappeare...

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Abstract

The invention discloses a suspension type composite tuning vibration reduction device and method, and belongs to the technical field of vibration reduction. According to the technical scheme, the suspension type composite tuning vibration reduction device comprises a frame body and a suspension mechanism which is arranged in the center of the frame body and can rotate relative to the frame body, and a mass ball is installed at the tail end of the suspension mechanism; a plurality of energy consumption units which are arranged at intervals in the circumferential direction of the suspension mechanism are fixed on the frame body; and each energy consumption unit comprises a damping cavity and a stirring mechanism arranged in the damping cavity, the stirring mechanisms are connected with the suspension mechanism through traction ropes, and the suspension mechanism can drive the stirring mechanisms to stir magnetorheological fluid filled in the damping cavities when swinging. According to the suspension type composite tuning vibration reduction device and method, the vibration response of a power transmission tower structure in all directions under the action of external force can be reduced, and the purposes of energy consumption and vibration reduction are achieved; and the natural vibration period of a mass pendulum can be adjusted.

Description

technical field [0001] The invention relates to the technical field of vibration reduction, in particular to a suspension compound tuning vibration reduction device and method. Background technique [0002] Under the action of earthquake and wind load, the high-rise structure will vibrate, which seriously reduces the safety of the high-rise structure. Suspended mass pendulum damper is a relatively economical passive vibration reduction device for high-rise structures. Its outstanding advantage is that the swing direction of the mass pendulum depends entirely on the vibration direction of the structure. In practical applications, the mass pendulum can accurately impart vibration-reducing damping force along the vibration direction. [0003] However, traditional suspended mass pendulum dampers are mostly passive vibration dampers, which cannot dynamically adjust the natural vibration period and vibration damping force according to the service conditions of the structure and r...

Claims

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Application Information

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IPC IPC(8): E04B1/98E04H9/02
CPCE04B1/98E04H9/0215Y02E10/72
Inventor 邵国栋刘娟王聪庞继勇
Owner POWERCHINA SEPCO1 ELECTRIC POWER CONSTR CO LTD
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