【摘要】 结合结构动力学理论分析与地震模拟振动台的控制理论分析,给出东南大学4 m×6 m自行组装的单轴振动台的数学模型,并进行仿真分析,指出了系统在不同负载下的油柱共振及阻尼等参数;同时结合实际模型试验进行详细的试验分析。理论与试验的结果都证明了在这种组合模式的系统中,三参量控制能更加有效地改善系统动态特性,满足更多的试验要求。更多还原

【Abstract】 Combining structural dynamics with the control theory of a shaking table,the dynamic model of a 4m×6m self-assembled shaking table was derived.Its oil column resonances and damping parameters were then obtained based on simulations.At the same time,a detalied test analysis was given according to actual model tests.Theoretical and experimental results showed that a 3-parameter control model was more effective to improve the dynamic characteristics of the system to meet additional test requirements.更多还原