| 宗路航,陈现敏,郭朝阳,黎剑锋,薛群,冯江华,龚兴龙*.磁流变阻尼器半主动控制方法的实验研究[J].实验力学,2010,25(2):143~150 |
| 磁流变阻尼器半主动控制方法的实验研究 |
| Experimental Study on the Semi-Active Control Strategies of Magnetorheological Damper |
| 投稿时间：2009-12-04 修订日期：2010-03-10 |
| DOI： |
| 中文关键词: 磁流变阻尼器 天棚阻尼 开关控制 连续控制 模糊控制 |
| 英文关键词:MR damper sky-hook on/off control continuous control fuzzy control |
| 基金项目: |
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| 中文摘要: |
| 由于磁流变阻尼器是一种高度非线性的装置，因此建立与之相适应的控制系统是半主动控制问题的关键。本文采用改进的Bingham模型建立了磁流变阻尼器的动力学特性模型，根据天棚阻尼开关控制、天棚阻尼连续控制和模糊控制三种控制方法，确立了从系统速度响应到磁流变阻尼器励磁电流之间的关系，并开发了一套半主动控制系统。在一个两自由度的简化车辆试验平台上进行半主动控制试验，对比研究了三种控制方法的控制效果。实验结果表明，在1.3Hz~2.0Hz的低频段内，开关控制的最佳减振效果为15.1%，连续控制的最佳减振效果为14.9%，模糊控制的最佳减振效果为20.1%。可见，三种控制方法都能有效的减小车体的振动，模糊控制的减振效果最佳。 |
| 英文摘要: |
| Because Magnetorheological damper (MR damper) is a highly nonlinear device, how to build the corresponding control system is the key to semi-active control problems. In this paper, a dynamic property model of MR damper was built by using an improved Bingham model. According to the skyhook on-off control strategy, the skyhook continuous control strategy and the fuzzy control strategy, the relationship from the velocity response to the MR damper's control current was determined respectively. A semi-active control system was also manufactured. Semi-active control experiments were carried out on a simplified vehicle platform with two DOF. The damping effects of the three control strategies were compared and analyzed. Experimental results show that, in the low frequency range of 1.3Hz~2.0Hz, the best damping effect of the on-off control strategy is 15.1%, the best damping effect of the continuous control strategy is 14.9%, and the best damping effect of the fuzzy control strategy is 20.1%. The results indicate that the vibration of the car body is reduced greatly under the three control strategies, among which the fuzzy control strategy has the best damping effect. |
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