论文部分内容阅读
首先介绍了铅-磁流变阻尼器(LMRD)的构造与特点。然后根据LMRD试验测得的滞回曲线,提出了该阻尼器的力学模型-Michaelis-Menten模型,并对模型参数进行了识别。最后通过将模拟结果与试验结果进行对比对模型进行了验证。结果表明:Michaelis-Menten模型能描述电流、位移幅值和激励频率对LMRD力学性能和非线性滞回性能的影响。
Firstly, the structure and characteristics of lead-magnetorheological damper (LMRD) are introduced. Then according to the hysteresis curve measured by the LMRD test, the mechanical model-Michaelis-Menten model of the damper is proposed and the model parameters are identified. Finally, the model is verified by comparing the simulation results with the experimental results. The results show that the Michaelis-Menten model can describe the influence of current, displacement amplitude and excitation frequency on the mechanical properties and nonlinear hysteresis properties of LMRD.