| 磁流变弹性体力学性能的测试与分析 |
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| 引用本文： | 方生,龚兴龙,张先舟,张培强.磁流变弹性体力学性能的测试与分析[J].中国科学技术大学学报,2004,34(4):456-463. |
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| 作者姓名： | 方生 龚兴龙 张先舟 张培强 |
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| 作者单位： | 中国科学院材料力学行为与设计重点实验室,中国科学技术大学力学与机械工程系,安徽合肥,230027 |
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| 基金项目： | 中国科学院“百人计划”资助项目，安徽省十五科技攻关资助项目 |
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| 摘 要： | 基于单自由度基础激励 ,建立了磁流变弹性体磁致粘弹性的实验测试系统 ,研究其剪切模量及损耗因子与外加磁场间的关系 .并对颗粒磁饱和前后分别考虑局部场及颗粒尺寸的影响 ,修正了磁偶极子模型 ,进而分析了链中颗粒间的间距与磁场引起的磁流变弹性体附加剪切模量之间的关系 ,为磁流变弹性体的优化设计提供理论指导 .
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| 关 键 词： | 磁流变弹性体 磁致粘弹性 局部场 磁偶极子 |
| 文章编号： | 0253-2778(2004)04-0456-08 |
| 修稿时间： | 2003年9月20日 |
Mechanical Analysis and Measurement of Magnetorheological Elastomers |
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| FANG Sheng,GONG Xing-long,ZHANG Xian-zhou,ZHANG Pei-qiang.Mechanical Analysis and Measurement of Magnetorheological Elastomers[J].Journal of University of Science and Technology of China,2004,34(4):456-463. |
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| Authors: | FANG Sheng GONG Xing-long ZHANG Xian-zhou ZHANG Pei-qiang |
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| Abstract: | A system for studying magnetorheological elastomers is developed. In terms of a single degree freedom mode excitation, their magnetoviscoelasticity is researched. The effect of external magnetic fields on their shear modulus and loss factor is revealed. Considering the local field effect before the saturation of the particle magnetization and the influence of the particle size after that, we modify the magnetic dipole model. The relation between the gap of two neighboring particles in a chain and the increase in shear modulus is also investigated for optimal design. |
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| Keywords: | magnetorheological elastomers magnetoviscoelasticity local field magnetic dipole model |
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