A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
EDDY CURRENT TYPE DAMPER
An eddy current damper (1) includes a magnet holding member (2), a first permanent magnet (3) having a thickness (HI), a second permanent magnet (4) having a thickness (HI), a conductive member (5), a ball nut (6), a screw shaft (7), and a copper layer (12) having a thickness (H2). The second permanent magnet (4) is adjacent to the first permanent magnets (3) with a gap therebetween in the circumferential direction of the magnet holding member (2), wherein the arrangement of magnet poles is inverted between the second permanent magnet (4) and the first permanent magnet (3). The ball nut (6) is arranged inside the magnet holding member (2) and the conductive member (5), and is fixed to the magnet holding member (2) or the conductive member (5). The copper layer (12) is fixed to the conductive member (5) and is opposed to the first permanent magnet (3) and the second permanent magnet (4) with a gap therebetween. The thickness (H1) and the thickness (H2) satisfy, with respect to a distance (R1) between a central axis of the screw shaft (7) and the center of gravity of the first permanent magnet (3):0.018≤H1/R1≤0.060,and0.0013≤H2/R1≤0.0065.
EDDY CURRENT TYPE DAMPER
An eddy current damper (1) includes a magnet holding member (2), a first permanent magnet (3) having a thickness (HI), a second permanent magnet (4) having a thickness (HI), a conductive member (5), a ball nut (6), a screw shaft (7), and a copper layer (12) having a thickness (H2). The second permanent magnet (4) is adjacent to the first permanent magnets (3) with a gap therebetween in the circumferential direction of the magnet holding member (2), wherein the arrangement of magnet poles is inverted between the second permanent magnet (4) and the first permanent magnet (3). The ball nut (6) is arranged inside the magnet holding member (2) and the conductive member (5), and is fixed to the magnet holding member (2) or the conductive member (5). The copper layer (12) is fixed to the conductive member (5) and is opposed to the first permanent magnet (3) and the second permanent magnet (4) with a gap therebetween. The thickness (H1) and the thickness (H2) satisfy, with respect to a distance (R1) between a central axis of the screw shaft (7) and the center of gravity of the first permanent magnet (3):0.018≤H1/R1≤0.060,and0.0013≤H2/R1≤0.0065.
EDDY CURRENT TYPE DAMPER
WIRBELSTROMDÄMPFER
AMORTISSEUR DE TYPE À COURANT DE FOUCAULT
NOGAMI HIROSHI (author) / IMANISHI KENJI (author) / NOGUCHI YASUTAKA (author) / MASUI RYOHSUKE (author) / SANO KUMPEI (author)
2020-10-07
Patent
Electronic Resource
English