基于永磁体间的磁性负刚度的分析与优化

来源 :应用力学学报 | 被引量 : 0次 | 上传用户:lishimuyi
下载到本地 , 更方便阅读
声明 : 本文档内容版权归属内容提供方 , 如果您对本文有版权争议 , 可与客服联系进行内容授权或下架
论文部分内容阅读
为了有效地降低磁性负刚度结构的非线性程度,从简单三磁体结构出发,引入新型负刚度结构模型——五磁体对称结构,运用MATLAB建立新型负刚度结构的磁力学模型并应用Ansoft Maxwell进行仿真验证.研究永磁体间的相对位置参数对五磁体对称结构的负刚度曲线走势的影响,在微幅振动下对基于磁引力的负刚度曲线拟合后使用谐波平衡法求解动力学方程.最终得出结论:在给定的条件下,五磁体负刚度结构的负刚度曲线的非线性相较于简单三磁体结构,一定程度上得到了改善,且其隔振性能相较于传统线性隔振系统有了大幅提高,为磁性负刚度结构的负刚度曲线非线性的优化和应用提供了理论上的参考.
其他文献
A palladium-catalyzed [4+1] cycloaddition of prop-2-yn-1-ones with double isocyanides is developed herein. The transformation worked well to produce a series of
“生活是写作的源泉。”这是前人总结出来的精辟之谈。只要教师引导学生在生活当中进行观察,学生就对自然、社会、人生有了独特感受和真切体验,就会乐于表达、有个性、有创意
期刊
S-Monofluoromethyl phosphorothioates represent an important class of organofluorine compounds and are reported here for the first time. A series of S-monofluoro
为了探讨具有非对称势能函数的三稳态压电俘能器的优点,提出了一种具有不对称势能函数的三稳态结构.基于广义Hamilton变分原理,考虑梁端磁铁偏心距和转动惯量的影响,建立了非
A rhodium-catalyzed directing group promoted selective C-H olefination reaction of indolizines at the 8-position is reported. Di-olefination at 2,8-positions al
Five novel biscembranoids, ximaolides H-L (1-5), along with four known related compounds (6-9) were isolated from the Hainan soft coral Sarcophyton tortuosum. T
Nickel-and palladium-catalyzed cross-coupling reactions have attracted wide attentions, while ligand-controlled selectivity in these reactions are still elusive