Viscoleastic damper

The viscoelastic damper is a rigid viscous damping device. There are three types of load-deformation hysteresis curves: linear, deformation-softening, and deformation-hardening. Its mechanical model includes a model applying fractional differential constitutive relation and a model combining spring and damper, and its damping force is related to velocity and displacement. The shape of the damper includes a plane type and a cylinder type. The viscoelastic damper is made of viscoelastic damping material and constraining steel plate alternately superimposed and bonded. In addition to viscoelastic damping material, there are constraining steel plate and adhesive layer. The latter two materials hardly consume energy, so The loss factor of viscoelastic dampers is smaller than that of viscoelastic materials. The mechanical properties of viscoelastic dampers cannot be completely equal to those of viscoelastic damping materials. Under the action of external force, the deformation of viscoelastic dampers is the sum of the deformations of viscoelastic damping materials, steel plates and adhesives.

Applications of Viscoelastic Dampers:
Viscoelastic dampers (VED) are generally located in positions that can produce relative deformation, such as diagonal bracing, herringbone bracing, beam-column joints, truss lower chords or between adjacent buildings. When displacement occurs between structural layers, viscoelastic damping It will produce shear hysteretic deformation, dissipate the input vibration energy and reduce the vibration response of the structure.

Viscous damper classification and selection:
The wall panel viscoelastic damper is composed of upper steel plate, lower steel plate and viscoelastic material filled between them. When the building undergoes shear deformation in the horizontal direction, the upper and lower steel plates of the viscoelastic damper will move with each other, which will drive the viscoelastic material to undergo shear deformation to dissipate the energy of the land administration.
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Founded in 2016

Zhejiang Earthquake Prevention Technology Co., Ltd. is a holding subsidiary established by Hangzhou Diping Zhenan Technology Co., Ltd. in September 2020. Zhejiang Zhenfang Technology Co., Ltd. has a registered capital of 26 million yuan, its own factory building covers an area of 10,800 square meters, and the standard factory building area is 6,000 square meters. With the great help of the Institute of Engineering Mechanics of China Earthquake Administration, the company has established a technical team led by domestic experts in seismic reduction and isolation technology, which has laid a solid foundation for long-term development in the future.
Zhejiang Earthquake Prevention Technology Co., Ltd is a member of China Disaster Prevention Association. Famous Viscoleastic damper manufacturers and suppliers in China, we provide Viscoleastic damper for better Shock Absorption system.

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product ADVANTAGE

  • Friction damper

    It mainly includes the middle steel plate, the two outer steel plates and the friction material between the steel plates.

  • Simple mechanical model

    Simple and easy analysis and design of structural vibration reduction.

  • Simple structure and low cost

    Even large earthquakes are not damaged, so there is no need to replace.

  • Damping

    The hysteresis curve is basically rectangular.

  • Stable performance

    Velocity correlation, displacement correlation is small.

  • Good durability

    No post-maintenance required.

  • Energy absorption

    Vertical bearing capacity, horizontal restoring force, damping (energy absorption) trinity.

  • Damping ratio

    Improved rubber formula, the equivalent damping ratio can reach more than 12%.

  • Maintenance costs

    Low maintenance and management costs (no additional damping devices required).

  • Environmental friendly

    HDR high damping rubber has low temperature dependence and is widely used in different climatic regions.

  • Creep properties

    HDR high damping rubber has the same superior deformation performance as natural rubber.

  • Aging resistance

    The surface of the high damping bearing is covered with a rubber protective layer to protect the internal rubber from ozone and ultraviolet rays.

  • Viscous resistance

    It is a kind of damper related to stiffness and speed.

  • Widely used

    It is used in high-rise buildings, bridges, seismic reconstruction of building structures and other fields.

  • Airbag

    The damper absorbs and dissipates the impact energy of the earthquake on the building structure to the maximum extent.

  • Silicone oil medium

    The medium has a small viscosity temperature coefficient, and good radiation resistance.

  • Electrical insulation properties

  • Ozone resistance, corona resistance