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Design method of modulating feedback gain-active tuned mass damper (MFG-ATMD)

A technology of tuning mass damping and feedback gain, applied in bridge construction, bridge parts, building components, etc., can solve the problem that the structure does not meet the use function and safety.

Inactive Publication Date: 2016-02-17
SHANGHAI UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the high uncertainty of seismic load, the nonlinearity of materials and the variation of performance during use, as well as the limitations of existing structural analysis and design methods make it possible that the structure does not meet the requirements of function and safety.

Method used

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  • Design method of modulating feedback gain-active tuned mass damper (MFG-ATMD)
  • Design method of modulating feedback gain-active tuned mass damper (MFG-ATMD)
  • Design method of modulating feedback gain-active tuned mass damper (MFG-ATMD)

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Embodiment Construction

[0026] The specific embodiments of the present invention will be further described below in conjunction with the accompanying drawings.

[0027] Such as figure 1 As shown, the active tuning mass damper design method based on the modulation feedback gain of the present invention comprises the following steps:

[0028] Step 1, from the controlled vibrational mass m of the building structure itself s , damping c s and stiffness k s , to impose a new type of active control force on the basis of a single ATMD. Then a mechanical model of the building structure based active tuned mass damper (building structure-MFG-ATMD) system based on modulated feedback gain is established, as figure 2 shown;

[0029] Step 2. According to the principle of structural dynamics, the force analysis of the building structure and the active tuned mass damper (ATMD) is carried out, and the system equation of the active tuned mass damper (building structure-MFG-ATMD) based on the modulation feedback ...

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Abstract

The invention provides a design method of a modulating feedback gain-active tuned mass damper (MFG-ATMD). The method includes the steps of firstly, applying novel active control power on the basis of a single active tuned mass damper; building the mechanical model of the MFG-ATMD of a building structure; secondly, building the system equation of the MFG-ATMD of the building structure; thirdly, performing optimal design controlled by vibration; fourthly, designing the novel MFG-ATMD by referencing the parameters of an original building structure. By the design method which is better than a design method of the active tuned mass damper, structure displacement response under a seismic action can be controlled effectively.

Description

technical field [0001] The invention relates to an active tuning mass damper design method (Modulating Feedback Gain-ActiveTuned Mass Damper, MFG-ATMD) based on modulation feedback gain. Background technique [0002] As a natural disaster that seriously threatens the safety of human life and property, earthquake has caused huge disasters to human beings. It is one of the many earthquake-prone countries, such as the Wenchuan earthquake, Japan earthquake, and Ya'an earthquake that occurred in recent years. These major earthquakes not only caused great economic losses, but also brought great grief and serious psychological damage to people. In the 21st century, with the rapid development of the world economy, people have put forward higher and higher requirements for the safety and disaster prevention of engineering structures, requiring engineering structures not to be damaged when natural disasters (such as strong earthquakes and typhoons) occur damage, and requires that the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E04B1/98E01D19/00
CPCE01D19/00E04H9/0215
Inventor 曹黎媛李春祥
Owner SHANGHAI UNIV
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