| 超磁致伸缩换能器系统动力学特性分析 |
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| 引用本文： | 孙华刚,袁惠群,贺威,李东.超磁致伸缩换能器系统动力学特性分析[J].应用力学学报,2007,24(3):486-489. |
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| 作者姓名： | 孙华刚 袁惠群 贺威 李东 |
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| 作者单位： | 东北大学,110004,沈阳 |
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| 摘 要： | 根据第一压磁理论建立超磁致伸缩换能器系统含有平方、立方项非线性动力学模型,利用非线性振动近似解析方法对换能器系统进行分析,揭示了换能器系统非线性特性。利用基于MAT-LAB/Simulink的系统仿真理论,建立换能器系统动态仿真模型,发现换能器系统在一定参数下存在着混沌现象。通过数值模拟的方法对换能器系统做深入的理论分析,得出系统在不同参数下存在着倍周期、倒倍周期分岔等复杂非线性现象。本文的分析结果表明,超磁致伸缩材料的弹性模量、压磁系数、相对磁导率和系统阻尼系数等参数是超磁致伸缩换能器系统动力学特性的主要影响因素。
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| 关 键 词： | 压磁理论 超磁致伸缩换能器 动力学模型 非线性特性 动态仿真 混沌 |
| 文章编号： | 1000-4939（2007）03-0486-04 |
| 修稿时间： | 2005-11-26 |
Dynamic Characteristic in Magnetostrictive Actuator System |
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| Sun Huagang,Yuan Huiqun,He Wei,Li Dong.Dynamic Characteristic in Magnetostrictive Actuator System[J].Chinese Journal of Applied Mechanics,2007,24(3):486-489. |
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| Authors: | Sun Huagang Yuan Huiqun He Wei Li Dong |
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| Abstract: | According to the first piezomagnetic theory,the dynamic model of the magnetostrictive actuator including square and cubic items is established.Analyzing the magnetostrictive actuator with the approximate method for the nonlinear vibration system,the nonlinear characteristics of the magentostrictive actuator,such as hysteresis and jump,are revealed.The dynamic model of the magnetostrictive actuator is simulated with Simulink box of the MATLAB.The chaos and period-doubling in the magnetostrictive actuator can be found with some parameters.The simulated result indicates that the elastic modulus,piezomagnetic parameter,relative permeability of the magnetostrictive material and damp parameter of the system mainly affect the dynamic characteristics. |
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| Keywords: | piezomagnetic theory magnetostrictive actuator dynamic model nonlinear characteristic dynamic simulation numerical simulation chaos |
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