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Tunable power consumption quality damper for power generator

A technology for tuning mass damping and dampers, applied in the direction of controlling generators, electrical components, control systems, etc., can solve the problems of high cost and instability, and achieve the effects of saving manpower and costs, improving linearity, and good stability

Inactive Publication Date: 2003-06-04
TONGJI UNIV
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  • Summary
  • Abstract
  • Description
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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 stable for a long time, so the best vibration reduction effect cannot be obtained for a long time

Method used

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  • Tunable power consumption quality damper for power generator
  • Tunable power consumption quality damper for power generator
  • Tunable power consumption quality damper for power generator

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Experimental program
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Effect test

Embodiment

[0036]Embodiment: The quality of the TMD is mainly the quality of the frame, and additional quality can be added as needed. The frame 9 is welded into a rectangular frame with 50*50 angle steel, and the middle part is welded with an additional quality bracket and a connecting bracket of the spring group. All these moving parts, together with the added mass, make up the mass (m) of the TMD, a total of 160 kg. A total of 10 rolling bearings 6 with an outer diameter of 50 mm are supported on both sides of the frame bottom. In order to prevent the frame from shaking left and right when vibrating, 6 outer diameters of 50 mm limit bearings 8 are used on both sides of the frame. According to the mass requirement of TMD design, the additional mass consists of 10kg iron plate.

[0037] The spring length of the spring 2 of TMD is 320 millimeters, outer warp is 20 millimeters, has 92, is divided into two groups, and every group one end is connected on the rectangular frame 9, and the o...

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Abstract

The present invention is one kind of tunable mass damper (TMD) with generator as damper. The TMD consists of TMD mass, generator damper and spring combination. The generator is mashed through gear and gear rack and contained to TMD mass, so that the generator generates power to consume energy to form damping while the mass vibrates. Altering the outer load resistance can change damping coefficient easily. Two sets of spring are connected across the TMD mass, selected spring number regulates the elastic coefficient of TMD, and the pre-tensile differential connects is favorable to spring positioning and linearity. The present invention is installed to top of tall building, and the damping coefficient is set in the optimized value to reach optimal wind resisting and anti seismic effect and to maintain long term stability.

Description

technical field [0001] The invention belongs to the technical field of building construction, and in particular relates to a generator energy-consuming tunable mass damper (TMD) 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 the desi...

Claims

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Application Information

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IPC IPC(8): E04B1/98H02P9/00
Inventor 吕西林方重
Owner TONGJI UNIV
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