The invention discloses a viscoelastic-friction compound
damper with variable damping and
variable stiffness, which comprises two symmetrical cylindrical viscoelastic
damper units and two cylindrical friction
damper units, the friction damper units are sleeved on a circular Outside of the
cartridge viscoelastic damper unit. The cylindrical viscoelastic damper unit is sequentially composed of an annular inner
steel cylinder, an annular viscoelastic material layer, and an annular middle
steel cylinder from the inside to the outside. The middle part of the annular inner
steel cylinder is provided with an elastic element, and both ends of the annular inner steel cylinder are provided with closed
steel plates. , the inner sides of both ends of the annular middle steel cylinder are provided with cylindrical viscoelastic materials, and the two ends of the annular middle steel cylinder are provided with connecting anchor
steel plates; the friction damper unit is sequentially composed of annular middle steel cylinder, annular friction plate, Annular friction plate, annular outer steel cylinder. The annular friction plate is divided into a first annular friction plate and a second annular friction plate. The annular outer steel cylinder is composed of an upper half annular outer steel cylinder and a
lower half annular outer steel cylinder connected by bolts.