Abstract：Traditional suspension mass pendulums include suspension single pendulums, series suspension multiple pendulums and parallel suspension multiple pendulums. These types of pendulums are simple in structure and clear in mechanism, but narrow in tuning frequency band, excessively long hem of low-frequency super high-rise structure and excessively short hem of high-frequency high-rise structure limit their application in practical engineering. In order to solve this problem, the dynamic equation of the multi-pendulum structure with string and parallel suspension is established. In order to study the damping performance of these two types of suspension pendulum, the damping effect of the traditional suspension mass pendulum and the string and parallel suspension pendulum with spring on the controlled structure was compared and analyzed by numerical simulation, and a series of shaking table tests were carried out on five types of controlled and uncontrolled structures. The effectiveness of suspension simple pendulum, suspension string, parallel spring-free double pendulum, suspension string, parallel spring double position under traditional ground motion and four kinds of ground motion is verified. The results of numerical simulation and shaking table test show that the series suspension multi-pendulums with spring has the best damping effect, and it has the advantages of increasing the tuning frequency band, realizing the multi-order mode control and adjusting the pendulum length flexibly, which is suitable for engineering practice.
孙澔鼎，何浩祥，程扬，张耀源，曹青. 悬吊多质量摆体系力学机理及减振性能试验研究[J]. 振动与冲击, 2024, 43(6): 50-63.
SUN Haoding，HE Haoxiang，CHENG Yang，ZHANG Yaoyuan，CAO Qing. Experimental study on the mechanical mechanism and vibration reduction performance of suspended multi-mass pendulums. JOURNAL OF VIBRATION AND SHOCK, 2024, 43(6): 50-63.
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