| 用扭摆测量获取材料非线性内耗参数的计算方法 |
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| 引用本文： | 孙宗琦,阎德勤.用扭摆测量获取材料非线性内耗参数的计算方法[J].物理学报,1993,42(4):592-596. |
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| 作者姓名： | 孙宗琦 阎德勤 |
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| 作者单位： | 中国科学院金属研究所,沈阳110015 |
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| 摘 要： | 在小内耗并且内耗参数只与切变振幅相关的前提下,采用分析力学方法求出由单自由度自由衰减振动扭摆位移采样值,获取材料非线性内耗和切变模量参数的计算方法。
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| 关 键 词： | 扭摆 内耗 非线性 材料 计算方法 |
| 收稿时间： | 5/3/1992 12:00:00 AM |
A CALCULATION METHOD TO OBTAIN NONLINEAR INTER-NAL FRICTION MATERIAL PARAMETERS FOR THE MEASUREMENT WITH TORSIONAL PENDULUM |
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| SUN ZONG-QI and YAN DE-QIN.A CALCULATION METHOD TO OBTAIN NONLINEAR INTER-NAL FRICTION MATERIAL PARAMETERS FOR THE MEASUREMENT WITH TORSIONAL PENDULUM[J].Acta Physica Sinica,1993,42(4):592-596. |
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| Authors: | SUN ZONG-QI and YAN DE-QIN |
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| Abstract: | Assuming the smallness of the internal friction which depends only on the amplitude of shear strain, based on analytical mechanics, we developed a calculation method to obtain non-linear material parameters of internal fiction and shear modulus from the sampled data of tor-sional displacements of the free-decay oscillation for the torsional pendulum. |
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