| 扬声器低频弱非线性系统的周期振动分析 |
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| 引用本文： | 贾磊磊,高凡.扬声器低频弱非线性系统的周期振动分析[J].江汉大学学报(自然科学版),2011,39(1):33-35. |
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| 作者姓名： | 贾磊磊 高凡 |
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| 作者单位： | 1. 桂林航天工业高等专科学校,电子信息工程系,广西,桂林,541004;桂林电子科技大学,信息与通信学院,广西,桂林,541004
2. 桂林航天工业高等专科学校,电子信息工程系,广西,桂林,541004 |
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| 基金项目： | 桂林航天高等专科学校科研项目(X10Q021) |
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| 摘 要： | 同时具有恢复力和磁场力的恒压源驱动扬声器非线性系统的动力行为极其复杂.利用多尺度扰动理论对扬声器弱非线性振动系统的周期振动进行数值分析,得出了周期振动的稳定性以及幅频之间的关系.结果表明,只要磁场驱动力存在,调节相应的系数,均可以得到稳定的周期解.
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| 关 键 词： | 扬声器 弱非线性系统 周期振动 多尺度扰动 |
Periodic Vibration Analysis of Low Frequency Weak Nonlinear System for Loudspeaker |
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| JIA Lei-lei,GAO Fan.Periodic Vibration Analysis of Low Frequency Weak Nonlinear System for Loudspeaker[J].Journal of Jianghan University:Natural Sciences,2011,39(1):33-35. |
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| Authors: | JIA Lei-lei GAO Fan |
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| Institution: | JIA Lei-lei1,2,GAO Fan1(1.Department of Electrical Engineering,Guilin College of Aerospace Technology,Guilin 541004,Guangxi,China,2.School of Information and Communication,Guilin University of Electronic Technology,China) |
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| Abstract: | The dynamics of nonlinear systems for loudspeaker driving by constant voltage power supply with both restoring force and magnetic force are complicate.Using multi-scale perturbation theory,investigates the periodic vibrations of a weak nonlinear vibration system of loudspeaker,and obtains the stability of periodic vibration and relationship between amplitude and frequency.The result shows that it can obtain the stable periodic solution of the nonlinear system with magnetic force by adjusting the parameters. |
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| Keywords: | loudspeaker weak nonlinear system periodic vibration multi-scale perturbation |
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