摘要
采用一种改进的Bingham模型描述磁流变阻尼力,研究了在弹簧变形量较大时,单自由度磁流变系统的主共振.利用平均法得到了系统的一阶近似解,并进行了数值验证.通过研究各种参数对主共振幅频曲线的影响,可以有效地控制系统的主共振.此外,还对该磁流变减振器和普通减振器在主共振时系统的振幅大小等动态参数进行了比较,结果表明磁流变减振器的减振效果较好.
An improved Bingham model was proposed to describe the force of a MR damper, whose primary resonance for the single-degree-of-freedom （SDOF） was researched under the condition that the spring defor- mation was comparatively great. The analytical solution of the system was obtained by using the Averaging Method, whose effectiveness was verified through numerical simulation, and the effects of all the physical parameters on the amplitude-frequency curves were also studied so as to control the primary resonance effectively. In addition, the amplitude comparison between the traditional damper and the MR damper in the primary resonance was presented, which showed the performance of MR damper in vibration control was better.
出处
《动力学与控制学报》
2006年第1期49-53,共5页
Journal of Dynamics and Control
关键词
磁流变减振器
平均法
主共振
MR damper, Averaging method
primary resonance
