| 颗粒物质中熵力和组态熵的共振吸收力学谱研究 |
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| 引用本文： | 熊小敏,王海燕,张进修. 颗粒物质中熵力和组态熵的共振吸收力学谱研究[J]. 中山大学学报(自然科学版), 2003, 42(2): 129-130,132 |
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| 作者姓名： | 熊小敏 王海燕 张进修 |
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| 作者单位： | 中山大学光电材料与技术国家重点实验室∥物理科学与工程技术学院,广东,广州,510275 |
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| 基金项目： | 国家自然科学基金资助项目(19974077,10027001,10004017)，教育部博士点基金资助项目(99095)，教育部重点资助项目(99055806)，广东省攻关资助项目(99M01107G,2KM01101G)，广东省自然科学基金资助项目((D1246)，广州市青年基金资助项目(2000-k-004-01) |
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| 摘 要： | 利用研制的切变波共振吸收力学谱仪测量了颗粒物质(种子、不锈钢珠)的共振吸收力学谱，发现系统的共振频率具有明显的切位移振幅效应，同时颗粒物质存在特征共振吸收峰。从这些结果，可以算出颗粒物质的熵力及熵能级差。
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| 关 键 词： | 颗粒物质 熵力 组态熵 共振吸收力学谱 共振频率 切位移振幅效应 熵能级差 |
| 文章编号： | 0529-6579(2003)02-0129-03 |
Study on the Entropy and Entropy Force of Granular Materials by Resonant Absorption Mechanical Spectrometer |
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| XIONG Xiao-min,WANG Hai-yan,ZHANG Jin-xiu. Study on the Entropy and Entropy Force of Granular Materials by Resonant Absorption Mechanical Spectrometer[J]. Acta Scientiarum Naturalium Universitatis Sunyatseni, 2003, 42(2): 129-130,132 |
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| Authors: | XIONG Xiao-min WANG Hai-yan ZHANG Jin-xiu |
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| Abstract: | Using our home made Resonant absorption mechanical spectrometer, the resonant absorption mechanical spectrums of granular material (seeds, stainless steel beads) are obtained. It is found that the resonant frequency of the apparatus system displays the strong dependence of shear displacement amplitude. At the same time, granular material has its own inherent resonant absorption peaks in the mechanical spectrum. From the above results, the entropy force and the difference of the entropy levels belonging to the granular material is calculated and discussed. |
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| Keywords: | granular material resonant absorption mechanical spectrum entropy entropy force |
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