| 考虑温变时超磁致伸缩微致动器的动力学分析 |
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| 引用本文： | 袁惠群,吴文波,李莹,李东. 考虑温变时超磁致伸缩微致动器的动力学分析[J]. 东北大学学报(自然科学版), 2011, 32(4): 549-553. DOI: - |
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| 作者姓名： | 袁惠群 吴文波 李莹 李东 |
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| 作者单位： | 东北大学,理学院,辽宁,沈阳,110819 |
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| 基金项目： | 国家自然科学基金，教育部高等学校博士学科点专项科研基金，沈阳市重点技术创新计划项目 |
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| 摘 要： | 建立了考虑温度变化时的超磁致伸缩微致动器的动态振动微分方程,得到了微致动器振动响应的非共振解析解.在已知磁化强度情况下,讨论了温度和预应力对振动响应的影响,并得到了位移响应随温度变化的系数;解出由于超磁致伸缩材料非线性而产生的亚谐共振解,讨论了温度对共振因子的影响.仿真结果表明,超磁致伸缩材料的磁-力-热耦合非线性对微...
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| 关 键 词： | 超磁致伸缩微致动器 磁-力-热耦合非线性 动力学分析 振动响应 温度影响 |
Dynamic Analysis of a Giant Magnetostrictive Actuator at Varying Temperature |
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| YUAN Hui-qun,WU Wen-bo,LI Ying,LI Dong. Dynamic Analysis of a Giant Magnetostrictive Actuator at Varying Temperature[J]. Journal of Northeastern University(Natural Science), 2011, 32(4): 549-553. DOI: - |
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| Authors: | YUAN Hui-qun WU Wen-bo LI Ying LI Dong |
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| Affiliation: | YUAN Hui-qun,WU Wen-bo,LI Ying,LI Dong(School of Sciences,Northeastern University,Shenyang 110819,China.) |
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| Abstract: | A simple dynamic model was established to determine the effect of temperature on vibratory response of the giant magnetostrictive actuator,resulting in a differential equation of motion containing terms of temperature.Under known magnetization intensity,the effect of temperature and pre-stress on vibratory response was discussed,and a coefficient of temperature dependent displacement response determined.The resonance solution caused by giant magnetostrictive nonlinearity was derived,and the effect of temper... |
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| Keywords: | giant magnetostrictive actuator magneto-thermo-mechanical coupled nonlinearity dynamic analysis vibratory response effect of temperature |
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