US 11,946,524 B2
Double-ring shaped strong magnet array nonlinear dynamic vibration absorber for vibration mitigation of suspender cables and design method thereof
Yonghui An, Liaoning (CN); Shijun Huang, Liaoning (CN); and Jinping Ou, Liaoning (CN)
Assigned to DALIAN UNIVERSITY OF TECHNOLOGY, Liaoning (CN)
Appl. No. 17/292,623
Filed by DALIAN UNIVERSITY OF TECHNOLOGY, Liaoning (CN)
PCT Filed Jun. 15, 2020, PCT No. PCT/CN2020/096135
§ 371(c)(1), (2) Date May 10, 2021,
PCT Pub. No. WO2021/253169, PCT Pub. Date Dec. 23, 2021.
Prior Publication US 2022/0128110 A1, Apr. 28, 2022
Int. Cl. F16F 7/10 (2006.01); G06F 30/10 (2020.01); E01D 19/00 (2006.01); G06F 111/10 (2020.01)
CPC F16F 7/10 (2013.01) [G06F 30/10 (2020.01); E01D 19/00 (2013.01); F16F 2222/06 (2013.01); F16F 2222/08 (2013.01); F16F 2226/04 (2013.01); G06F 2111/10 (2020.01)] 2 Claims
OG exemplary drawing
 
1. A double-ring shaped strong magnet array nonlinear dynamic vibration absorber for vibration mitigation of suspender cable, comprising:
an inner magnet ring array configured to be fixed at an installation position of the suspender cable, the inner magnet ring array including two inner ring subdivisions, each inner ring subdivision having a predetermined number of inner ring magnet slots, an inner ring magnet shoe being put in each of the inner ring magnet slots, inner ring steel limiters being fixed to the corresponding inner ring subdivision by bolts, non-slip gaskets being added to an inside of two inner ring subdivisions,
an outer magnet ring array including two outer ring subdivisions, each outer ring subdivision having a predetermined number of outer ring magnet slots, and an outer ring magnet shoe being put in each of the outer ring magnet slots, outer ring steel limiters being fixed to the corresponding outer ring subdivisions by bolts,
an additional weight installed on a periphery of the outer magnet ring array and fixed together with the outer magnet ring array, the additional weight being a square-shaped body formed by four cuboid mass blocks attached together by bolts,
universal wheels attached to the outer ring subdivisions; and
a base including two identical base subdivisions, non-slip gaskets being provided on an inside of the base, the two identical base subdivisions being fixed on the suspender cable by bolts to support the outer magnet ring array, the additional weight and the universal wheels,
wherein the universal wheels are in direct contact with the base, the universal wheels move in any lateral direction in the plane of the base, the friction of the universal wheels with the base causes damping of the vibration absorber,
wherein energy from a vibration of the suspender cable is dissipated through the damping provided by the friction, and
wherein magnetic force between the inner magnet ring array and the outer magnet ring array prevents the outer magnet ring array from colliding with the inner magnet ring array during movement.