新型流体阻尼器控制超高柔性结构风致振动的研究与应用

The fluid viscous damper with double guide bar , which has been got the National Patent Right, was developed and manufactured . Through dynamic behavior tests of the fluid viscous dampers, the main influential factors about its damping force, such as the damping material, the piston's size, the temperature, vibration frequency and amplitude and configuration, etc, were analyzed. Also high-performance of structural vibration energy dissipation of the fluid viscous dampers were verified. The dynamic behavior mathematic model of the fluid viscous dampers was established and its formula of the damping force was figured out. The methods of dynamic analysis and design were established finally. The semi-active fluid viscous damper was developed and tested, too. The formula of damping force for various non-linear fluid viscous damper was figured out. The code of production and the standards of technology for the fluid viscous damper were made. The three sample projects in Xian, Suqian and Beijing had successfully been performed using this structural vibration energy dissipation technology. The technology will be applied to the wind and seismic control for various structures, such as building structures, high-rise structures and long-span structures, etc.

研制性能优良的新型流体阻尼器。进行其模拟振动试验和模型结构振动试验，建立其线性与非线性力学模型；研究设有离散流体阻尼器的大型复杂超高柔性结构的阻尼比计算、频域时域分析、能量分析、参数优化和灵敏度分析；建立流体阻尼器控制超高柔性结构风致振动的分析和设计方法。为流体阻碍尼器用于大型复杂结构的风振和地震响应控制打下基础。