An Intelligent Variable Stiffness Tuned Mass Damper System for Magnetorheological Elastomer Bearings
A technology for tuning mass damping and magneto-rheological elasticity, applied in magnetic springs, springs/shock absorbers, springs, etc., can solve the problems of high manufacturing costs, maintenance costs and high use costs, and achieve improved adjustment range, precise adjustment, and consumption. small effect
Active Publication Date: 2017-12-26
DALIAN UNIV OF TECH
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In this way, the manufacturing cost, maintenance cost and use cost are higher
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[0021] The specific embodiments of the present invention will be described in detail below in conjunction with the technical solutions and accompanying drawings.
[0022] The specific embodiment of the present invention sees Figure 1 to Figure 6 . by floor plan figure 1 and A-A sectional schematic diagram figure 2 It can be seen that this embodiment consists of 1 fast tuning mass 1, 1 upper connecting plate 2, 4 magnetorheological elastomer bearings, 4 excitation components, 1 lower magnetically conductive connecting plate 12, and 2 sensors 8, 13 , a signal line 7 and a controller 6. The tuning mass 1 of the system is fixed on the upper connecting plate 2, and the upper connecting plate 2 is connected with the iron core 3 of the excitation assembly. The iron cores 3 of the four excitation components of the system are welded with steel plates up and down, and the coils 5 are wrapped on the iron cores 3 after being wrapped by a heat-insulating hard insulating layer 4 . Th...
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The invention discloses an intelligent variable-stiffness tuned mass damper system with magnetorheological elastomer bearings and belongs to the technical field of passive structure adaptive control. The intelligent variable-stiffness tuned mass damper system comprises a tuned mass block, a stress component, excitation components, sensors and a controller, wherein the tuned mass block is mounted on an upper connecting plate; the stress component consists of at least four magnetorheological elastomer bearings, magnetic-conducting connecting plates and the upper connecting plate; each bearing is enwrapped with a protective rubber layer; each excitation component consists of a coil, an iron core and a hard insulating layer; one sensor is mounted on each of the upper connecting plate and a lower connecting plate; the controller changes the shearing stiffness of the system according to a signal. The intelligent variable-stiffness tuned mass damper system is simple to produce and convenient to mount; the mechanical and magnetic properties of materials are fully utilized, and the space utilization rate and the magnetic field utilization rate are high; compared with a cylindrical bearing, a circular truncated cone-shaped bearing has wider stiffness adjustment range and better overall stability; each coil is not only taken as one excitation component, but also has the function of the tuned mass block; real-time and efficient adjustment can be ensured.
Description
technical field [0001] The invention belongs to the technical field of structural self-adaptive passive control, and relates to an intelligent tuning mass damper with adjustable stiffness using magnetorheological elastomer as the key material. Background technique [0002] Tuned mass damper technology is a mature passive control technology for structures. Its vibration reduction effect is obvious, and it is widely used to control the response of high-rise structures and bridges under earthquake and wind vibration. This passive control technology is simple to implement and highly reliable, but its defect is that the tuned mass damper cannot be adjusted according to changes in structural characteristics and load characteristics, so it cannot guarantee the best control effect, and sometimes even aggravates the vibration of the structure. lead to catastrophic consequences. In recent years, research on tuned mass dampers with adjustable stiffness has attracted attention. By cha...
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IPC IPC(8): F16F6/00E04B1/98
CPCE04B1/98F16F6/00
Inventor 欧进萍王奇董旭峰李芦钰
Owner DALIAN UNIV OF TECH