subharmonic相关论文
The design and simulation of a Shottky subharmonic mixer working at 375GHz is presented.The diode model based on its phy......
In the absence of mooring condition, the heave and pitch coupled equations are established considering the effect of sta......
In this paper,we mainly use the Galerkin approximation method and the iteration inequalities of the L-Maslov type index ......
By critical point theory, a new approach is provided to study the existence and multiplicity results of periodic and sub......
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Symmetry-breaking Subharmonic Bifurcations of Periodicaly Parameter-excited Systems 11 The paper was reproduced on ......
,The viscoelasticity of lipid shell and the hysteresis of subharmonic in liquid containing microbubb
The viscoelasticity and subharmonic generation of a kind of lipid ultrasound contrast agent are investigated.Based on th......
Subharmonic and ultraharmonic emissions based on the nonlinear oscillation of encapsulated microbubb
Subharmonics or ultraharmonics provides better contrast-to-tissue ratio (CTR) than the fundamental or the second harmoni......
Subharmonic and ultraharmonic emissions based on the nonlinear oscillation of encapsulated microbubb
Subharmonics or ultraharmonics provides better contrast-to-tissue ratio (CTR) than the fundamental or the second harmoni......
在PSCAD/EMTDC中搭建了交流变电站及德宝直流详细模型.分析了750 kV自耦变压器(交流主变)发生直流偏磁时交直流系统中各种谐波的变......
超声造影剂微泡在超声激励下可以激发出次谐波,幅度随着环境压力的增加而线性降低,利用这一关系可以非侵入性地测量体内组织的压力......
给出了二阶非自治Hamilton系统u（t）＋ F（t，u（t））=0，a．e．t∈R在势函数是次线性的情况下具有相关性质且极小化泛函的次调和解的存在条件，得到了......
Melnikov方法是用来判定一个系统是否存在Smale马蹄意义下的混沌的一种有效的数学方法,它通过测量Poincare映射的双曲不动点的稳定......
本文导出了由位移表示的带初始挠度的粘弹性大挠度矩形薄板的运动方程，在简支边界条件下，应用分歧理论和Ｍｅｌｎｉｋｏｖ方法，研究在周期外力作用下系......
无刷直流电机通常由硬开关PWM—BUCK电路提供电源，但是该电路具有开关损耗大，效率低等缺点，而软开关电路是解决这些问题的唯一途径。......
准零刚度隔振器具有良好的高静低动特性,但是理想的准零刚度状态很难实现,存在小的正刚度和超重情况,而超载条件下会引起新的2次超......
The 1/3 subharmonic solution for the Duffing' s equation is investigated by using the methods of harmonic balance an......
In this paper the Melnikov method has been generalized to the case of higher-order byfinding an explicit expression for ......
Dynamical behavior of nonlinear oscillator under combined parametric and forcing excitation, which includes van der Pol ......
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Bifurcations of subharmonic solutions of order m of a planar periodic perturbed system near a hyperbolic limit cycle are......
The evolution of two spanwise-aligned low-speed streaks in a wall turbulent flow, triggered by the instability of the su......
ON SECONDARY INSTABILITY WITH RESPECT TO THREE DIMENSIONAL SUBHARMONIC DISTURBANCES IN BOUNDARY LAYE
The general equations of secondary instability with respect to three-dimensional subharmonicdisturbances are derived and......
In this paper, we study the multiplicity of subharmonic solutions of the nonlinear differential equation of the forced r......
Using the dual Morse index theory, we study the stability of subharmonic solutions of first-order autonomous Hamiltonian......
本文对上部结构的双线型恢复力进行最小二乘法拟合，得到类似于Duffing振子的恢复力曲线模型，地基土简化为集中参数模型，运用多尺度法......
Take the single degree of freedom nonlinear oscillator with clearance under harmonic excitation as an example,the 1/3 su......
Direct numerical simulations are performed to investigate the generation of internal waves by tide-topography interactio......
Experiments are performed in choked circular hot and cold nitrogen jets issuing from a 2.44 cm diameter sharp-edged orif......
Analytical Approach for the Systematic Research of the Periodic Ferroresonant Solutions in the Power
Ferroresonance is a complex and little known electrotechnical phenomenon. This lack of knowledge means that it is volunt......
利用PSpice软件，采用电路仿真的方法深入研究了约瑟夫森结在射频辐照下的I-V特性，观察到了亚谐波台阶的存在，得出了台阶高度与射频电......
本文为畸变电功率提出了一模型化的测量方法。在对待测畸变瞬时功率信号建立一参数化模型的基础上，证明了畸变电功率可由其瞬时功率......
