| 基于悬臂共振法的IPMC杨氏模量的动力学测定方法 |
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| 引用本文： | 郝丽娜,高建超,刘洪涛.基于悬臂共振法的IPMC杨氏模量的动力学测定方法[J].东北大学学报(自然科学版),2011,32(10):1464-1467. |
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| 作者姓名： | 郝丽娜 高建超 刘洪涛 |
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| 作者单位： | 东北大学机械工程与自动化学院,辽宁沈阳,110819 |
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| 基金项目： | 国家高技术研究发展计划项目(2008AA04Z305); 国家自然科学基金资助项目(51075066); 中国科学院沈阳自动化研究所机器人学国家重点实验室资助项目(RL0200903) |
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| 摘 要： | 针对目前IPMC智能材料杨氏模量的测定存在方法单一、破坏材料本身等问题,提出了一种基于悬臂共振法的动力学测定方法.该方法通过激励装置使IPMC发生有阻尼自由衰减振动,采用激光位移传感技术记录其振动历程,然后对采集到的信号进行分析处理,从而得到其基频,最后采用悬臂共振法建立IPMC的横向振动方程,引入边界条件即可计算出其杨氏模量.这种方法与目前存在的拉伸法和弯曲法相比,具有测试方便简单、对材料本身不产生破坏、测定结果精度高等优点.
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| 关 键 词： | 智能材料 IPMC 悬臂共振 杨氏模量 激光位移传感技术 |
Dynamic Determination Method Based on Cantilever Resonance for IPMC Young's Modulus |
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| HAO Li-na,GAO Jian-chao,LIU Hong-tao.Dynamic Determination Method Based on Cantilever Resonance for IPMC Young's Modulus[J].Journal of Northeastern University(Natural Science),2011,32(10):1464-1467. |
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| Authors: | HAO Li-na GAO Jian-chao LIU Hong-tao |
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| Institution: | HAO Li-na,GAO Jian-chao,LIU Hong-tao(School of Mechanical Engineering & Automation,Northeastern University,Shenyang 110819,China.) |
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| Abstract: | A dynamic determination method based on cantilever resonance was presented to solve the crude and material-damage problems of current ways in measurement of IPMC Young's modulus.An incentive device was applied to bring the IPMC into the damping free vibration state,which was recorded by a laser displacement sensor.The fundamental frequency was obtained by analyzing and processing the collected signal.A transverse vibration equation was established on the basis of the cantilever resonant vibration,and the IP... |
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| Keywords: | smart material IPMC(ionic polymer metal composites) cantilever resonance Young's modulus laser displacement sensor |
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