| 船舶动力机械双层混合隔振系统非线性动力学特性研究 |
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| 引用本文： | 谢向荣,朱石坚.船舶动力机械双层混合隔振系统非线性动力学特性研究[J].振动与冲击,2010,29(3):174-177. |
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| 作者姓名： | 谢向荣 朱石坚 |
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| 作者单位： | 海军工程大学,船舶与动力学院,武汉,430033 |
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| 基金项目： | 国家自然科学基金资助项目 |
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| 摘 要： | 以船舶动力机械的安装特性为背景,提出了以空气弹簧作为被动隔振元件、超磁致伸缩作动器作为主动隔振元件的船舶动力机械双层混合隔振系统。在第一压磁理论和Stone-Weierstrass定理的基础上,建立了该隔振系统的非线性动力学模型。通过数值仿真,研究了该系统中非线性参数与幅频特性的关系;分析了超磁致伸缩作动器的励磁电流对隔振效果的影响。
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| 关 键 词： | 超磁致伸缩作动器 混合隔振器 非线性 动力学特性 |
| 收稿时间： | 2009-5-21 |
| 修稿时间： | 2009-9-9 |
Nonlinear dynamics of two-stages hybrid isolation system of power machinery on ships |
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| XIE Xiang-rong,ZHU Shi-jian.Nonlinear dynamics of two-stages hybrid isolation system of power machinery on ships[J].Journal of Vibration and Shock,2010,29(3):174-177. |
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| Authors: | XIE Xiang-rong ZHU Shi-jian |
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| Affiliation: | XIE Xiang-rong,ZHU Shi-jian(College of Naval Architecture , Power,Naval Univ.of Engineering,wuhan 430033 China) |
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| Abstract: | A hybrid isolator consisting of a giant magnetostrictive actuator(GMA) and an air spring was presented.The nonlinear dynamic model of a two-stages vibration isolation system applying this type of hybrid isolator on a flexible foundation was established based on first magnetoelastic theory and Stone-Weierstrass theorem.The relation between the variation of nonlinear parameters and the amplitude-frequency response characteristic curve of the isolation system was discussed by use of numerical simulation.The in... |
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| Keywords: | giant magnetostrictive actuator hybrid isolator nonlinear dynamic characteristic |
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