| 粘弹性波导吸振器中能量导出杆的动力学模型 |
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| 引用本文： | 涂修宇,傅祥志,蒙运红. 粘弹性波导吸振器中能量导出杆的动力学模型[J]. 华中科技大学学报(自然科学版), 1999, 0(11) |
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| 作者姓名： | 涂修宇 傅祥志 蒙运红 |
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| 作者单位： | 华中理工大学机械科学与工程学院 |
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| 基金项目： | 国家九五攀登计划（B）预选项目，湖北省自然科学基金 |
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| 摘 要： | 为了解决波导吸振器中粘弹性能量耗散器与振源之间的能量传输及阻抗匹配问题，提出了能量导出杆这一设想，并建立了等截面及变截面能量导出杆的动力学模型．通过对其进行动力学分析，导出了能量导出杆传输能量能力与所选材料、结构、波的频率、负载情况等之间的关系方程，定量地讨论了在振源与粘弹性能量耗散器之间加入能量导出杆后，其界面处的能量反射情况．仿真结果表明，选用剪切模量与密度乘积越小的弹性材料制作能量导出杆，能量传输效果越好；对高频振噪的传输效果优于低频振噪；另外，通过调节能量导出杆的长度，使减振系统进入共振状态，可对特定频率的振噪达到理想的减振效果．
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| 关 键 词： | 能量导出杆 负载阻抗 输入阻抗 共振 |
The Dynamic Model of Energy Waveguide Role for A Viscoelastic Waveguide Vibration Absorber |
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| Tu Xiuyu Fu Xiangzhi Meng Yunhong. The Dynamic Model of Energy Waveguide Role for A Viscoelastic Waveguide Vibration Absorber[J]. JOURNAL OF HUAZHONG UNIVERSITY OF SCIENCE AND TECHNOLOGY.NATURE SCIENCE, 1999, 0(11) |
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| Authors: | Tu Xiuyu Fu Xiangzhi Meng Yunhong |
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| Affiliation: | Tu Xiuyu Fu Xiangzhi Meng Yunhong |
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| Abstract: | According to the principle of impedance match, a dynamic model of energy waveguide role is presented to solve the problem of energy transmission between a viscoelastic waveguide vibration absorber and vibrating source. By analyzing its dynamic properties, and energy transmission equation concerned with the selected material, structure, wave frequency, load condition and so on are deduced. The results of simulation and experiment show that the energy waveguide role can effect on the vibration dissipation effectively. |
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| Keywords: | energy waveguide role load impedance input impedance resonant vibration |
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