结果表明该法能消除大部分的数值弥散,而且又不增加解的振荡性。
It is showed that the method can dispel most numerical dispersion and the vibration of solution doesn't increase.
给出了问题径向正解的非存在性,解的振荡性及有界性的充分条件,并对有界解进行了估计。
The nonexistence theorem of radial positive solution, sufficient conditions of oscillation and boundedness of radial solution and estimation for bounded solution are given in this paper.
应用现代差分方程理论对这些数学模型解的渐近性态与周期振荡进行了详细的讨论研究。
The asymptotical behaviors and periodic oscillations have been studied by applying the modern theories of difference equations.
方程的二阶近似解显示出非线性效应对振荡频率稳定度、振幅稳定度及波形正弦纯度的影响。
The frequency stability, amplitude stability and harmonic content can be deduced from the second order perturbation solution of that equation.
通过模拟结果与解析解的比较可以看出,在时间步长选择合适的情况下,集中热容矩阵能够很好地解决数值振荡问题;
The results show that the simulation results fit the theoretic results(by separate variable method)very well when the heat capacity matrix is lumped with appropriate time step.
在亚光速区,对处于相对论性振荡的纵等离激元色散方程进行数值求解,得到了朗道阻尼系数的数值解。
The landau damping rate is obtained by solving the dispersion equation of relativistic longitudinal plasmons with the sub-light-velocity numerically.
本文考虑一类二阶及四阶线性和半线性抛物方程初边值问题的解的渐近性与振荡性。
This paper describes the asymptotic and oscillatory properties of solutions of initial boundary value problems of linear and semilinear parabolic equations of second and fourth order.
浮体在粘性流体中的侧倾振荡为阻尼运动,其侧倾角度随时间的增加而减小,在小角度时侧倾振荡与理论解接近。
The list vibration of the floating body well agrees with the one from the theory in the case of small Angle.
给出了描述具有几个光振荡周期的飞秒激光脉冲在非线性光纤中传输方程的解。
The solution of the nonlinear wave equation describing propagation of a femtosecond laser pulse with duration of several optical oscillation periods in a nonlinear fiber is presented.
采用可变长度单摆的力学模型对秋千振荡给出初等分析,采用微扰近似法导出了秋千的非线性参数共振解析解,并进行了讨论。
A variable length simple pendulum model is introduced, elementary analysis and perturbation analytic solution of nonlinear differential equation for parametric resonance are presented.
通过对电力系统异步运行状态的分析,提出了利用振荡中心电压的变化特征来判断系统失步的失步解列装置。
Through analysis of the out of step operation of power systems, a new out of step splitting device is proposed.
文章论述家用交流电热器加热板的传热模型,得出其温度振荡解,供热设计使用。
This paper deals with the heat transfer model of heating plane in AC electric heater. A solution of its temperature oscillation has been got for the purpose of the heating design.
进行了受控振荡的仿真分析,以验证频推系数特征以及受控振荡稳态解特征。仿真分析结果证明了上述特征的可行性。
A controlled oscillation process was simulated to verify the pushing and steady solution features. The analysis results prove the effectiveness of the features.
对方程作了数值解,模拟了具有几个光振荡周期的飞秒脉冲在单模光纤中的非线性传输。
By solving the equation numerically, the nonlinear propagation of femtosecond laser pulse with duration of several optical oscillation periods in single-model optical fiber has been simulated.
本文进一步研究了这些系数随时间变化而趋于一个定值或在某一常数附近作周期性振荡,并给出容易检验存在唯一全局渐近稳定的正周期解的条件。
In this article we further study the cases in which the coefficients of the model vary with time and tend to definite values or vibrate periodically near certain constants and...
本文进一步研究了这些系数随时间变化而趋于一个定值或在某一常数附近作周期性振荡,并给出容易检验存在唯一全局渐近稳定的正周期解的条件。
In this article we further study the cases in which the coefficients of the model vary with time and tend to definite values or vibrate periodically near certain constants and...
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