| 摘要 |
A large-size axial eddy current damper manufactured by use of screw drive comprises a drive assembly and an eddy current damping generator; the drive assembly comprises a screw drive pair, and a stator and a rotor respectively made of magnetic conductive materials; the screw drive pair comprises a screw rod and a nut sleeved on the screw rod; the screw rod sequentially penetrates through an upper flange central hole of the stator and a lower flange central hole of the stator, and the nut is arranged within the stator; the rotor comprises an outer rotor and an inner rotor of which the bottom is provided with a lower connecting flange; one or more eddy current damping generators are arranged between the stator and the outer rotor. The damping coefficient and mass moment of inertia of the rotary eddy current damping portion can be magnified by hundreds of thousands of times to be converted into extremely large axial damping coefficient and axial equivalent added mass, and meanwhile, the problem is solved that it is difficult to manufacture axial dampers with a large damping coefficient and anti-vibration dampers with a simulation speed index of less than 1 by use of eddy current damping. |
