| 激励频率对线谱隔离效果影响的试验研究 |
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| 引用本文： | 张振海,朱石坚,楼京俊.激励频率对线谱隔离效果影响的试验研究[J].船海工程,2011,40(3). |
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| 作者姓名： | 张振海 朱石坚 楼京俊 |
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| 作者单位： | 海军工程大学振动与噪声研究所,武汉,430033 |
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| 基金项目： | 国家自然科学基金(50675220) |
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| 摘 要： | 为分析激励频率变化时,混沌隔振系统对特征线谱隔离效果的影响,设计双层混沌隔振系统,研究在不同激励频率条件下,混沌隔振系统对线谱的隔离能力。试验结果表明,激励频率对系统的隔振效果有较大的影响,在系统固有频率附近,线谱的隔离能力较差,在混沌隔振系统设计中,同样需要避开系统的固有频率。
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| 关 键 词： | 线谱 隔振 激励频率 混沌 非线性振动 |
Experiment on Performance of Chaos VIS Influened By Excitation Frequency |
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| Authors: | ZHANG Zhen-hai ZHU Shi-jian LOU Jin-jun |
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| Institution: | ZHANG Zhen-hai,ZHU Shi-jian,LOU Jin-jun (Institute of Noise and Vibration,Naval University of Engineering,Wuhan 430033,China) |
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| Abstract: | In order to analyze the influence of excitation frequency on performance of chaos vibration isolation system(VIS),an experimental setup was constructed.The experimental results showed that the excitation frequency has great influence on performance of VIS.In the region of inherence frequency of system,the line spectra in the radiated noise can not be reduced effectively,so in the design of chaos VIS,the inherence frequency of system should be avoided. |
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| Keywords: | spectra reduction vibration isolation system excitation frequency chaos nonlinear vibration |
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