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。
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.
出处
《中山大学学报（自然科学版）》
CAS
CSCD
北大核心
2003年第2期129-130,132,共3页
Acta Scientiarum Naturalium Universitatis Sunyatseni
基金
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)
