用相平面法分析螺旋线平衡的稳定性，导出解析形式的稳定性条件。
The stability of the helical equilibrium is analyzed with phase plane method, and an analytical criterion of stability is revealed.
第一个是关于如何通过极限环分析建立描述函数法与相平面法之间联系；
The first one is about how to build the connection between describing function method and phase plane method through limit cycle analysis.
然后用相平面法分析滑块的运动规律，并确定爬行运动的相轨迹——极限环。
Then the slider motion is analyzed by the state-plane method. A limit circle which can describe the path of the creeping motion is found out.
本文中，我们首先用非线性动力学中的相平面法来定性地分析神经元的阈值特性。
Firstly we introduced the phase plane method in nonlinear dynamics to analyze qualitatively the threshold dynamical behavior of neurons in this thesis.
基于MATLAB，用相平面法研究了，PLL的非线性捕获和非线性跟踪性能。
Based on MATLAB, the phase-plane method can be used to research on nonlinear capture function and nonlinear tracing function of PLL.
用相平面法对谐振参数变化规律进行了分析，讨论了参数的最佳控制、开关器件的贮存时间补偿等问题。
After the parameters in control law is analyzed by Phase-Plane method, other questions including optimal control, compensation of storage time are also discussed.
本文给出了模糊控制系统稳定性分析的相平面法和稳定区间法，并对应用这两种方法设计模糊控制系统进行了讨论。
This paper presents the phase plane method and the stable region method to analyze the stability of the fuzzy control systems.
然后，用相平面法来对简化模型的阈值特性进行定性分析，给出了参数变化与二维简化模型中的鞍点电压值变化之间的关系。
Secondly, the phase planes were introduced to find qualitatively the threshold of dynamical behavior, and the influences of parameters change on saddle point were discussed.
为得到高阶非线性系统的相平面，借助状态空间法，提出一种利用图解方法实现高阶非线性系统相轨迹的作图方法。
In order to obtain the phase plane of higher order nonlinear control system, a new graphic method of phase locus of phase plane for higher order nonlinear.
进一步地，我们采用二分法与相平面分析结合的方法计算压差方程的数值解。
Furthermore, we compute the Riemann solution by using a bisection method combined with the phase-plane analysis.
提了基于二阶线性系统等倾线法绘制相平面原理，实现了高阶非线性控制系统相平面相轨迹的作图算法。
In this paper a new concept of phase contrail of phase plane for higher order nonlinear control system based on isoclines method of second-order linear system is proposed.
以埕岛油田馆陶组上段层间河流相储层为研究对象，采用地质统计方法和劳伦兹系数法分析了馆陶组上段层间和平面的非均质性。
The heterogeneity of interlayer and plane of fluvial reservoir in upper Ng of Chengdao Oilfield was analyzed with the geostatistics and the Lorentz coefficient method.
以埕岛油田馆陶组上段层间河流相储层为研究对象，采用地质统计方法和劳伦兹系数法分析了馆陶组上段层间和平面的非均质性。
The heterogeneity of interlayer and plane of fluvial reservoir in upper Ng of Chengdao Oilfield was analyzed with the geostatistics and the Lorentz coefficient method.
应用推荐