非牛顿流体阻尼器冲击缓冲实验及其建模仿真

建立一种用于描述非牛顿流体阻尼器的冲击缓冲过程的数学模型，并对阻尼器进行相应的实验。利用实验结果对模型参数进行辨识，获得碰撞环节参数及阻尼器的阻尼系数和速度指数。结果表明，这种抗冲类阻尼器与普通流体阻尼器的设计不同，它需考虑碰撞环节的参数，而这些参数对碰撞冲击力峰值具有很大的影响。在缓冲环节中，阻尼力随时间延长近似线性下降，阻尼器具有良好的耗能特性。研究结果对抗冲类阻尼器的设计提供参考。

Shock and Buffer Experiment of a Non-Newtonian Fluid Damper and Its Modeling Simulation

Shock and buffer experiment of a non-Newtonian fluid damper was carried out. A mathematical model to simulate impacting and buffering process of the damper was built. The corresponding parameters in the model, such as factors of the impact system, damping factor and velocity exponent of the damper, were obtained based on the experiment results. It was found that this kind of anti-shock damper is different from the traditional fluid damper in design. The impact parameters of the anti-shock damper have large influence on the maximum impact force and the width of the shock impulse, which should be considered in the design. Moreover, in the buffering process, the damping force decreases quasi-linearly with time, which shows that the damper has a good performance in energy absorbing. Research in this paper can be used as a reference for the design of anti-shock damper.