Parallel anti-impact energy dissipation magnetorheological damper

A magnetorheological damper, parallel technology, applied in the direction of shock absorber, shock absorber, gas-liquid shock absorber, etc., can solve the problem of low stiffness, and achieve the effect of improving shock absorption performance and space utilization.

Active Publication Date: 2020-06-05
JIANGSU UNIV
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  • Abstract
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  • Application Information

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Problems solved by technology

[0006] Aiming at the problems existing in the prior art, the present invention relates to a parallel anti-shock energy-dissipating magneto-rheological damper, which solves the problem that ordinary shear-thickening dampers cannot To deal with the problem of structural vibratio

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  • Parallel anti-impact energy dissipation magnetorheological damper
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Embodiment Construction

[0032] Embodiments of the present invention are described in detail below, examples of which are shown in the drawings, wherein the same or similar reference numerals designate the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the figures are exemplary and are intended to explain the present invention and should not be construed as limiting the present invention.

[0033] In describing the present invention, it is to be understood that the terms "central", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "axial", The orientation or positional relationship indicated by "radial", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description , rather than indicating or implying that the device or elem...

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Abstract

The invention discloses a parallel anti-impact energy dissipation magnetorheological damper, and relates to the technical field of civil engineering. The parallel anti-impact energy dissipation magnetorheological damper comprises an active adjustable energy dissipation part and a passive anti-impact energy dissipation part, wherein the active adjustable energy dissipation part consists of a main piston, a main piston rod, an excitation coil, a first gas compensation cavity and an MRG cavity; and the passive anti-impact energy dissipation part consists of a floating piston, an auxiliary piston,an auxiliary piston rod, a second gas compensation cavity and a shear thickening glue (STG) cavity. According to the parallel anti-impact energy dissipation magnetorheological damper, aiming at the problem that the instantaneous stiffness of the structure of a common magnetorheological damper is small under the impact generated by the high-speed load, the auxiliary piston extrudes STC to generatea shear thickening effect, so that the impact generated by the high-speed load is effectively resisted, and meanwhile, the continuous adjustment of the damping force is realized by electrifying the excitation coil on the main piston; and the double damping and energy dissipation can be realized, and the output force of the parallel anti-impact energy dissipation magnetorheological damper is larger than the output force of a common single-rod damper.

Description

technical field [0001] The invention mainly relates to the anti-seismic field of civil engineering, in particular to a parallel anti-impact energy-dissipating magnetorheological damper. Background technique [0002] With the development of the modern civil engineering industry, the double-rod damper has limitations in travel and installation space, but the single-rod damper can overcome this limitation. Ordinary single-rod magnetorheological dampers have the problem of low instantaneous structural stiffness under the impact of high-speed loads, and ordinary single-rod shear thickening dampers have the problem of being unable to cope with structural vibration control under load changes. Therefore, it is particularly important to invent a single-rod damper that combines the performance of these two dampers. [0003] Magnetorheological Ge1 (MRG for short) is a new generation of polymer magnetorheological materials. MRG is formed by dispersing micron-sized magnetic particles in...

Claims

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Application Information

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IPC IPC(8): F16F9/06F16F9/08F16F9/32F16F9/36F16F9/53
CPCF16F9/063F16F9/064F16F9/067F16F9/08F16F9/3221F16F9/368F16F9/369F16F9/535F16F2222/06F16F2222/126
Inventor 于国军周杰操礼林刘浪刘雅林
Owner JIANGSU UNIV
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