相平面法 meaning in English
phase plane method
phase plane technique
Examples
- We only introduce the well - known phase plane and describing function methods
我们将介绍比较熟知的相平面法和描述函数法。 - Phase plane method
相平面法 - The stability of the helical equilibrium is analyzed with phase plane method , and an analytical criterion of stability is revealed
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。 - Some successful techniques such as phase - plane , describing function , and ad hoc methods , have been developed to alleviate this shortcoming
一些成功的方法，如相平面法、描述函数法以及一些特定的方法可以改进经典控制理论。 - So , it is important to make the system be adaptive , that is , the system can change the control parameter or control action according to the change of parameter or control index such that the system work at the best state . proper speaking , many systems in control engineering are nonlinear and linear system is only a special case of it
由于经典控制理论只适用于线性系统；而非线性系统的相平面法和描述函数法只能分析简单的非线性系统；几何理论则需要系统的精确的数学模型，这给非线性系统的研究带来了很大的困难。