| 基础激励作用下磁流变减振系统的非线性特性 |
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| 引用本文： | 李延成,王炅,钱林方. 基础激励作用下磁流变减振系统的非线性特性[J]. 功能材料, 2006, 37(6): 986-988 |
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| 作者姓名： | 李延成 王炅 钱林方 |
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| 作者单位： | 南京理工大学,机械学院,江苏,南京,210094;南京理工大学,机械学院,江苏,南京,210094;南京理工大学,机械学院,江苏,南京,210094 |
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| 基金项目： | 国防科技应用基础研究基金 |
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| 摘 要： | 磁流变减振器是一种典型的非线性系统,具有高度的非线性、时滞性和不确定性,其非线性特性是影响其工作的重要因素.本文在Bingham模型上,利用改良的谐波平衡法对非线性磁流变减振系统在简谐基础激励下的动态响应进行求解,并利用MATLAB软件对减振器在不同条件下的特性作了分析,结果显示磁流变减振系统的传递率在阻尼比＜1的情况下出现多值性的现象.针对此情况,提出了减振器设计时应注意的问题.
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| 关 键 词： | 磁流变减振器 非线性 基础激励 |
| 文章编号： | 1001-9731(2006)06-0986-03 |
| 收稿时间： | 2005-12-15 |
| 修稿时间： | 2006-02-07 |
Nonlinear performance of MR damper under base excitation |
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| LI Yan-cheng,WANG Jiong,QIAN Lin-fang. Nonlinear performance of MR damper under base excitation[J]. Journal of Functional Materials, 2006, 37(6): 986-988 |
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| Authors: | LI Yan-cheng WANG Jiong QIAN Lin-fang |
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| Affiliation: | School of Mechanical Engineering, Nanjing University of Science and Technology, Nanjing 210094, China |
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| Abstract: | Magnetorheological damper is a typical nonlinear device; it has the characters such as nonlinearity, time-delaying and uncertainty. Nonlinearity of MR damper is of great influence on its behaviors. In this paper, the dynamic responses of nonlinear MR damper under base harmonic excitation is obtained; Characters of MR damper is analyzed using MATLAB software. It is shown that a multi-value performance appears in transmissibility when the damping ration is below 1. Some advices are suggested in design of MR damper. |
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| Keywords: | magnetorheological damper nonlinear performance base excitation |
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