结构增强调谐质量阻尼器控制研究

Research of Enhanced Tuned Mass Dampers for Structures

提出了结构增强调谐质量阻尼器(ETMD)装置。新装置是在调谐质量阻尼器(TMD)的基础上,在质量块与地基之间设置一个附加粘滞阻尼器而构成。将ETMD最优参数的评价准则定义为:设置ETMD的结构均方根位移(解析式)的最小值的最小化。在频域内评价了附加阻尼对ETMD控制结构位移响应的最优参数、有效性和冲程的影响,并与TMD装置进行比较。数值结果表明,ETMD的振动冲程控制明显优于TMD。

The paper proposes the enhanced tuned mass dampers(ETMD)for structures.It is formed by placing an added viscous damping device between the secondary structure and the ground.The optimization criterion for the ETMD can be defined as the minimization of the minimum root-mean-square displacement of the structure with the ETMD.Employing the criterion,the effects of added damping on optimum parameters,effectiveness and stroke of ETMD are evaluated in frequency domain.Moreover,comparing the TMD,the numerical results demonstrate that the performance of ETMD for vibration stroke control is superior to the classical TMD.