Study on the New Viscoelastic Damper Based on Bending and Dislocating

摘要

The theoretical analysis and experimental study of working mechanism of the viscoelastic damper which dissipates energy by bending and dislocating are presented in this paper and the design accordance is provided based on the study. In addition, an interface between the damper design and the software calculation with ANSYS has been set up. An energy-dissipation damper has been designed with laminating steel plates and rubber based on the project of Hejing Tower in Guangzhou and used for vibration control on the glass curtain wall. The Kelvin-Voight modal for damping theory is used and the equivalent damping force has been found in the dampers analysis according to geometrical relationships and physical relationships which has been checked and analyzed under the same working conditional dynamic experiments. All the energy-dissipation dampers of any size and layout can be simulated for the damping element which is applied to the software of ANSYS, which in turn can be applied to do transient analysis of vibration control on the whole structure by this theory. It is shown that the results of the theoretical calculation, the dynamic experiment under the same working condition of the project of Hejing Tower and the ANSYS calculation agree with one another fairly well. It is also demonstrated that the theory in this paper can be widely used in the engineering design of the energy-dissipation damper.