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提出一种基于加速度阻尼原理的改进型半主动控制,可以克服天棚阻尼半主动控制在高频范围内抑制振动效果差的缺点。突破了以往研究半主动控制只针对单车车辆的限制,利用ADAMS(Automatic Dynamic Analysis of Me-chanical Systems)建立了2动2拖104个自由度动车组模型,并结合Matlab/Simulink对提出的半主动控制方法进行设计和联合仿真。根据联合仿真的结果,从时域和频域两个角度对比两种半主动控制方法对车辆运行平稳性和安全性的影响,并分析控制中时滞对系统性能的影响。结果发现,改进型半主动控制在提高车辆运行平稳性和抗时滞方面效果更佳。
An improved semi-active control based on the principle of acceleration damping is presented, which can overcome the shortcomings of the semi-active control of ceiling damping damping vibration in the high frequency range. This paper broke through the limitation of semi-active control for cycling vehicles in the past and established a 2-DOF and 104-DOF EMU model with ADAMS (Automatic Dynamic Analysis of Mechnical Systems). Combined with Matlab / Simulink, the proposed semi-active Control method to design and co-simulation. According to the results of co-simulation, the effects of two kinds of semi-active control methods on vehicle ride stability and safety are compared from two aspects of time domain and frequency domain, and the influence of time delay on the system performance is analyzed. The results show that the improved semi-active control is more effective in improving vehicle running stability and anti-delay.