Particle collision passive damper based on magnetic liquid

The invention discloses a particle collision passive damper based on magnetic liquid, and belongs to the field of vibration control. The problem that an existing particle collision damper cannot be applied to low and medium frequency vibration and weightlessness environments is successfully solved. The damper comprises a ball body (1), magnetic liquid (2), a spherical permanent magnet (3), a shell (4) and an elastic rubber shell (5), when the outside vibrates, the ball body (1) and a spherical magnetic field source composed of the spherical permanent magnet (3) and the elastic rubber shell (5) move in the shell (4) and collide with each other, fluid viscous damping and collision damping are generated, energy is absorbed, and the purpose of vibration reduction is achieved. The damper not only is suitable for low-frequency vibration within 10 Hz, but also has a very good effect on high-frequency vibration above 100 Hz. 基于磁性液体的颗粒碰撞被动阻尼器，属于振动控制领域。成功解决了现有颗粒碰撞阻尼器无法应用于中低频振动和失重环境的问题。该阻尼器包括球体(1)、磁性液体(2)、球形永磁体(3)、壳体(4)