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推导出了自由衰减系统线性内耗准确计算公式,并讨论了原有的自由衰减系统线性内耗近似计算公式应用范围。文章最后用准确公式和近似公式分别对有关实验结果进行了计算,并对计算结果进行了比较、分析与讨论。An accurate linear damping calculation formula for free vibration system has been deduced and the application limits of the corresponding approximate calculation formula has been discussed as well. Finally, the related experimental results have been calculated respectively by the newly-deduced formula and the present approximate one, and the two kinds of calculated results have been compared, analysed, and discussed.
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