基于转动惯性效应的调谐质量阻尼器控制方法

转动惯性双重调谐质量阻尼器(Rotational Inertia Double-Tuned Mass Damper,RIDTMD)是一种由调谐黏滞质量阻尼器(Tuned Viscous Mass Damper,TVMD)和调谐质量阻尼器(Tuned Mass Damper,TMD)组合而成的新型减振控制装置.采用RIDTMD作为控制装置,建立了多自由度结构-RIDTMDs系统的减振控制模型,并对其减振的有效性进行了研究.首先,基于RIDTMD装置的工作原理分析,给出了RIDTMD装置单体的力学简化模型;然后,建立了任意数目的 RIDTMD装置对多自由度结构减振的控制模型;并以控制系统的H2范数为优化目标,将RIDTMD装置的参数进行优化;最后,以一个3层框架结构为例,对RIDTMD装置的减振效果及装置参数对结构响应的影响规律进行分析,并与传统TMD装置进行对比,验证了RIDTMD装置减振的有效性.

Control method of tuned mass damper based on rotating inertial effect

The rotational inertia double-tuned mass damper (RIDTMD) is a novel control device which is composed of tuned viscous mass damper (TVMD) and tuned mass damper (TMD).The RIDTMD is used as the control device,and the vibration control model of multi freedoms structure-RIDTMD is established and the damping effectiveness of RIDTMD is verified.Firstly,the simplified mechanical model of single RIDTMD is established based on the analysis of the operating principle of the RIDTMD device.Then,the control model of multiple DOFs structure with arbitrary number RIDTMDs is established.Next,the H2 norm of the control system is viewed as the optimization goal,and the parameter optimization method of RIDTMD device is put forward.Finally,a three story frame structure is taken as an example to analyze the damping effects and influence rules of parameters of the RIDTMD device on structural response,and the comparison is made with the traditional TMD device to verify the effectiveness and advantages of RIDTMD.