電磁集能式調(diào)諧質(zhì)量阻尼器的結(jié)構(gòu)減震及能量收集分析
[Abstract]:Instead of the viscous damping in the traditional tuned mass damper, the energy collection unit of the ball rod and permanent magnet motor is used to form an electromagnetic tuned mass damper with the dual functions of structural shock absorption and energy collection. By introducing the mechanical component of ball wire rod, the horizontal movement of the structure can be transformed into the highly efficient rotational motion, and the inertia mass will be produced, which is beneficial to the improvement of the vibration absorption performance of the structure. By analyzing the mechanical properties of the ball wire rod and the dynamic model of the energy collection unit, the mechanical model of the electromagnetic energy collecting tuned mass damper is established. The dynamic model of the coupled structure subjected to earthquake is established by combining the electromagnetic concentrated energy tuned mass damper and the single degree of freedom structure. The simulation results show that the structure is subjected to El Centro earthquake. The performance of electromagnetic tuned mass dampers for structural shock absorption and energy collection. The results show that the peak displacement and acceleration of the structure obtained by the electromagnetic energy collector TMD are similar to those of the classical TMD, but the mean square values of the displacement and acceleration of the structure are inferior to those of the classical TMD, and the average power of the energy collection is about 0.52 W.
【作者單位】: 湖南科技大學土木工程學院;
【基金】:973計劃項目(2015CB057701;2015CB057702) 國家自然科學基金(51508185) 湖南省自然科學基金(2015JJ3073)
【分類號】:TU352.1
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