A modified characteristic line method for numerical calculation of steady oscillating current is proposed.
本文研究了气液活塞泵的运动机理 ,提出了一种用于定常振荡流数值计算的“修正特征线法” 。
The methods of local mesh refined,dynamic time step and lumped heat capacity matrix were introduced to resolve the numerical oscillation problem.
为了解决数值振荡问题,采用了局部网格细化、动态时间步长和集中热容矩阵等方法。
Based on the deeply analysis of essential reason caused numerical oscillations,this paper presents some ways to solve this problem.
在电力系统故障数字仿真中,网络结构发生变化时会引起非状态变量的突变,进而有可能造成非原型的数值振荡。
In this paper,a new method is developed for eliminating the numerical oscillation triggered by the changes of network configuration.
在电力系统的机网暂态数字仿真中,故障和操作引起的网络结构变化将导致数值计算中产生数值振荡。
In this approach,one oscillation index and two thresholds have been given to detect oscillation and measure its strength.
文中提出了一种基于频谱分析的振荡指数,用于量化监测工业过程,控制回路振荡;同时给出了该振荡指数的分类阈值和显著阈值的计算方法。
