垂直振动激励下颗粒材料有效质量和耗散功率的研究

余田; 张国华; 孙其诚; 赵雪丹; 马文波

doi:10.7498/aps.64.044501

摘要

研究了垂直振动激发下钨颗粒的动态有效质量() 和耗散功率p()随频率的依赖关系. 实验发现, 在给定的振动幅度下, 自由表面样品有效质量的实数部分M1 () 、虚数部分M2 () 以及耗散功率p()随频率的变化曲线均出现一个尖锐的共振峰. 随着在颗粒上表面施加压强的增大, M1 (), M2 () 和耗散功率p()曲线的峰值频率向高频移动, 且峰值高度也相应增大. 进一步研究发现, 有效质量实数部分的共振频率fg 随表面压强P的变化满足分段幂律规律, 当P较小时, 幂指数为0.3, 当P较大时, 幂指数减小为1/6. 颗粒系统的品质因子的倒数1/Q随压强P的变化满足指数衰减规律.

关键词:

Abstract

The dependences of the dynamic effective mass() and power dissipation p() of tungsten particles system on frequency are studied under vertical vibration excitation. It is found that there appears a sharp resonance peak in each of spectra of the real part M1 (), the imaginary part M2 () of the effective mass, and the power dissipation for a given vibrating strength. With the increase of the pressure acting on the top surface of the particle, each peak frequency of the M1 (), M2 () and power dissipation moves to higher frequency, and the peak height also increases accordingly. Further study finds that the resonance frequency fg of the real part of the effective mass satisfies piecewise power-law with the change of pressure P acting on the top surface. At low P value, the power exponent is 0.3, and at high P value the power exponent decreases to 1/6. The reciprocal of quality factor of the granular system, 1/Q, decreases exponentially with the change of pressure P.

Keywords:

作者及机构信息

1.
北京科技大学物理系, 北京 100083;

2.
清华大学, 水沙科学与水利水电工程国家重点实验室, 北京 100084

基金项目: 国家自然科学基金(批准号: 11272048, 11034010, 51239006)和欧盟Marie Curie 国际合作项目(批准号: IRSES-294976)资助的课题.

Authors and contacts

1.
Department of Physics, University of Science and Technology Beijing, Beijing 100083, China;

2.
State Key Laboratory for Hydroscience and Engineering, Tsinghua University, Beijing 100084, China

Funds: Project supported by the National Natural Science Foundation of China (Grant Nos. 11272048, 11034010, 51239006) and the European Commission Marie Curie Actions (Grant No. IRSES-294976).

参考文献

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[18]	Song C, Wang P, Makse H A 2008 Nature 453 629
[19]	Nowak E R, Knight J B, Ben-Naim E, Jaeger H M, Nagel S R 1998 Phys. Rev. E 57 1971
[20]	Kabla A, Debrégeas G 2004 Phys. Rev. Lett. 92 035501
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[22]	Digby P J 1981 J. Appl. Mech. 48 803
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施引文献

[1]	Brunet T, Jia X, Mills P 2008 Phys. Rev. Lett. 101 138001
[2]	Zhang K S, Wang S, Zhu M, Ding Y, Hu Y 2013 Chin. Phys. B 22 014305
[3]	Jaeger H M, Nagel S R, Behringer R P 1996 Rev. Mod. Phys. 68 1259
[4]	Pak H, Behringer R 1993 Phys. Rev. Lett. 71 1832
[5]	Windows-Yule C R K, Weinhart T, Parker D, Thornton A 2014 Phys. Rev. Lett. 112 098001
[6]	Zhang J X, Xiong X M 2003 Acta Metall. Sin. 39 1127 (in Chinese) [张进修, 熊小敏 2003 金属学报 39 1127]
[7]	Xiong X M, Wang H Y, Zhang J X 2003 Acta Metall. Sin. 39 1223 (in Chinese) [熊小敏, 王海燕, 张进修 2003 金属学报 39 1223]
[8]	Wang P P, Wang W J, Liu C S, Zhu Z G 2009 Rock Soil Mech. 30 (Supp.) 129 (in Chinese) [汪盼盼, 王万景, 刘长松, 朱震刚 2009 岩土力学 30 (增刊) 129]
[9]	Wang W J, Kong X Z, Zhu Z G 2007 Phys. Rev. E 75 041302
[10]	Peng Z, Jiang Y M, Liu R, Hou M Y 2013 Acta Phys. Sin. 62 024502 (in Chinese) [彭政, 蒋亦民, 刘锐, 厚美瑛 2013 物理学报 62 024502]
[11]	Hsu C J, Johnson D L, Ingale R A, Valenza J J, Gland N, Makse H A 2009 Phys. Rev. Lett. 102 058001
[12]	Valenza J J, Hsu C J, Johnson D L 2010 J. Acoust. Soc. Am. 128 2768
[13]	Valenza J, Hsu C J, Ingale R, Gland N, Makse H A, Johnson D L 2009 Phys. Rev. E 80 051304
[14]	Valenza J, Johnson D L 2012 Phys. Rev. E 85 041302
[15]	Henann D L, Valenza J J, Johnson D L, Kamrin K 2013 Phys. Rev. E 88 042205
[16]	Jiang Z H, Liu X Y, Peng Y J, Li J W 2005 Acta Phys. Sin. 54 5692 (in Chinese) [姜泽辉, 刘新影, 彭雅晶, 李建伟 2005 物理学报 54 5692]
[17]	Knight J B, Fandrich C G, Lau C N, Jaeger H M, Nagel S R 1995 Phys. Rev. E 51 3957
[18]	Song C, Wang P, Makse H A 2008 Nature 453 629
[19]	Nowak E R, Knight J B, Ben-Naim E, Jaeger H M, Nagel S R 1998 Phys. Rev. E 57 1971
[20]	Kabla A, Debrégeas G 2004 Phys. Rev. Lett. 92 035501
[21]	Kang W, Turner J A, Bobaru F, Yang L, Rattanidit K 2007 J. Acoust. Soc. Am. 121 888
[22]	Digby P J 1981 J. Appl. Mech. 48 803
[23]	Jia X, Caroli C, Velicky B 1999 Phys. Rev. Lett. 82 1863
[24]	Cremer L, Heckl M, Ungar E 1973 Structure Borne Sound (Berlin: Springer) p141
[25]	Goddard J D 1990 Proc. R. Soc. London A 430 105
[26]	Pilbeam C C, Vaišnys J R 1973 J. Geophys. Res. 78 810
[27]	Gardner G H F, Wyllie M R J, Droschak D M 1964 J. Petrol.Technol. 16 189

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