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| 1 | Mechanism of dust removal by a standing wave electric curtain显示文摘In this paper,the mechanisms of particle movement on an electric curtain are examined.Intermittent bursts in which particles leaping from a surface of an electric curtain are demonstrated both by numerical simulation and experimental observation.The hopping and surfing modes during particle removal are shown to depend on the particle electric charge and its initial position.The particles initially located on the top of electrode have a large electric charge tend to assume a hopping mode.Transverse movement of the particle initially located between the electrodes is analyzed,and the particle traps along the electric curtain surface are also observed. | SUN QiXia YANG NingNing CAI XiaoBing HU GengKai | 2012 | Science China(Physics,Mechanics & Astronomy)2012，55，6： | 4 |
| 2 | Dynamics of 1D mass–spring system with a negative stiffness spring realized by magnets: Theoretical and experimental study显示文摘Realization of negative stiffness(NS)in damping low frequency acoustic and mechanical vibration is relevant in engineering applications.In this work,assemblage of two repelling magnets was used to produce negative magnetic spring(NMS).A mass–spring system with NMS is experimented where the free and forced vibrations of the system are examined.The anti-phase movement is observed due to the presence of proposed NMS,confirming the analytical solution.We further showed the dynamics of the system containing NS spring could also be derived from Hamilton’s principle. | Akintoye Olumide Oyelade Ziwei Wang Gengkai Hu | 2017 | Theoretical & Applied Mechanics Letters2017，7，1： | 3 |
| 3 | Experimental study on interaction between a positive mass and a negative effective mass through a mass–spring system显示文摘We investigate the interaction between a positive mass and a negative effective mass through a threemass chain connected with elastic springs, a pair of masses is designed to have an effective negative mass, and it interacts with the third positive one as if an equivalent two-mass chain. The dynamics of the equivalent two-mass chain shows that the two bodies may be self-accelerated in same direction when the effective mass becomes negative, the experiment is also conducted to demonstrate this type of motion.We further show that the energy principle(Hamilton's principle) is applicable if the energy of the negative mass unit is properly characterized. The result may be relevant to composite with cells of effective negative mass, their interaction with matrix may lead to more richer unexpected macroscopic responses. | Jiao Zhou Yong Cheng Hongkuan Zhang Guoliang Huang Gengkai Hu | 2015 | Theoretical & Applied Mechanics Letters2015，5，5： | 2 |
| 4 | Acoustic cloak constructed with thin-plate metamaterials显示文摘We propose a strategy for designing the cylindrical acoustic cloak with thin-plate metamaterials.The inhomogeneous cloaking shell as derived by transformation acoustics is first discretized into a three-layer anisotropic metafluid,and their material parameters are optimized by minimizing the external scatterings.Then these metafluids are practically realized by thin-plate structures according to the metamaterial concept.As an example,an acoustic cloak is designed with nine layers of thin plate and totally 900 plate units.Numerical simulations are performed to assess the cloaking performance of the designed structure. | Pei Li Xuebing Chen Xiaoming Zhou Gengkai Hu Ping Xiang | 2015 | International Journal of Smart and Nano Materials2015，6，1： | 2 |
| 5 | 显示文摘 | Jun Yang Gengkai Hu Yonggang Zhang | 2001 | Scripta Materialia2001，45，29： | 1 |
| 6 | Experimental Study for Metamaterials Based on Dielectric Resonators and Wire Frame 显示文摘 | CAI Xiaobing ZHU Rui HU Gengkai | 2008 | Metamaterials2008，2，4： | 1 |
| 7 | 显示文摘 | Gengkai Hu JinBo Bai Ekaterina Demianouchko | 1998 | Composites Science and Technology1998，58，： | 1 |
| 8 | 显示文摘 | JinBo Bai Gengkai Hu Philippe Bompard | 1997 | Composites Science and Technology1997，57，： | 1 |
| 9 | Prediction of Yield Stress for Polysynthetically Twinned TiAl Crystals Scripta显示文摘 | Hu Gengkai Zhang Yonggang | 2001 | Materialia2001，，45： | 1 |
| 10 | An Analytical Dislocation Mutipile up Model for the Yield Stress of Fully Lamellar TiAl Alloys显示文摘 | Hu Gengkai Su Jilong | 2003 | Model Simu Mater Sci Eng2003，11，： | 1 |
| 11 | A Micmme- ehanieal Method of Elastoplastic Property for Particulate Com- posites with Finite Particle Concentration显示文摘 | MA HONGLEI HU GENGKAI HUANG ZHUPING | 2004 | Mechanics of Ma- terials2004，，： | 1 |
| 12 | Design for electromagnetic wave transparency with metamaterials显示文摘 | Xiaoming Zhou and Gengkai Hu | 2006 | Physical Review E 742006，，02： | 1 |
| 13 | A continuum micromechanical theory of overall plasticity for particulate composites including particle size effect显示文摘 | Liu Xiaoning Hu Gengkai | 2005 | International Journal of Plasticity2005，21，4： | 1 |
| 14 | A method of plasticity for general aligned spheroidal inclusion or void reinforced composites 显示文摘 | Hu Gengkai | 1996 | International Journal of Plasticity1996，12，： | 1 |
| 15 | 显示文摘 | Gengkai Hu JinBo Bai | 1998 | Composite Science and Technology1998，58，1： | 1 |
| 16 | Nonsingular two dimensional cloak of arbitrary shape 显示文摘 | HU Jin ZHOU Xiaoming HU Gengkai | 2009 | Appl Phys Lett2009，95，01： | 1 |
| 17 | A variational method for non-linear micropolar composites显示文摘 | HU Gengkai LIU Xiaoning LU Tianjian | 2005 | Mech Mat2005，，37： | 1 |
| 18 | Size-dependence of overall in-plane plasticity for fiber composites显示文摘 | XUN Fei HU Gengkai HUANG Zhuping | 2004 | Int J Solids & Struct2004，41，1617： | 1 |
| 19 | Influence of fiber' s shape and size on overall elastoplastic property for micropolar composites显示文摘 | MA Hansong HU Gengkai | 2006 | Int J Solids & Struct2006，43，10： | 1 |
| 20 | Effective moduli for micropolar composite with interface effect显示文摘 | CHEN Huan HU Gengkai HUANG Zhuping | 2007 | Int J Solids & Struct2007，44，2526： | 1 |
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