查询词典 oscillation method

A non-autonomous electric circuit consist of self-oscillation and forced oscillation.

一个非自治电路包含有自激振荡和强迫振荡两个成分。

The present experimental study investigated the mechanism of the self-exciting thermo-acoustic oscillation and the forced thermo-acoustic oscillation.

通过实验，揭示了热声自激振动与热声强制振动现象发生的条件与机理，研究了热声发动机的关键部件——板叠的形状与材质对系统的起振温度的影响。

Free oscillation of the earth: A simple change-of-shape oscillation of the whole earth.

地球自由震荡：地球整体形状变化的简谐震荡。

For free oscillation of various nonlinear conservative systems, the analytical approximate periods and the corresponding periodic solutions were established and they are valid for small as well as large amplitude of oscillation.

提出了结构参数发生较大变化时，计算结构的静力响应，固有频率与固有振型的高效的、适用范围广的方法；对非线性保守系统的自由振动，建立了既适用于小振幅又适用于大振幅的近似解析解法。

This study shows that the occurrence of these seiches is likely the result of coupling and resonance between atmospheric perturbation and free mode oscillation of the bay, which has the oscillation of off-shore surface wave as an intermediate media.

研究认为，假潮的发生很可能是大气扰动通过外海表面波作为中间机制，与港湾自由态振动之间产生耦合共振的结果。

Based on the fundamental theory of impulsive differential systems, employing Green formula, Gauss divergence theorem, Jensen inequality and Gronwall-Bellman inequality with impulse, we discuss the oscillation of impulsive partial differential systems by adopting reduction to absurdity and the stability in via of comparison theorem, respectively. Especially, we take an in-depth study on the oscillation of neutral impulsive parabolic systems and the stability of a class of nonlinear impulsive partial differential equations and obtain some useful conclusions.

本学位论文以脉冲微分系统基本理论为基础，利用反证法的分析方法和比较定理，结合Green公式、Gauss散度定理、Jensen不等式、含脉冲的Gronwall-Bellman不等式以及相关数学工具研究了脉冲偏微分系统的振动理论和稳定性理论，特别对中立型脉冲时滞抛物系统的振动性和一类非线性脉冲偏微分系统的稳定性作了较为深入的研究，给出了一些有用的结论。

Then, taking the coordinates of every gemel as the optimization variables, the optimization analyses with the improved constrain terms, aiming to the load on the leaf spring and the structure of mechanism, is applied on the four-bar linkage mould oscillation mechanism and the single-leaf spring oscillation mechanism.

本文介绍了连铸结晶器的振动装置的发展，并以各铰链点位置坐标为优化变量，针对板簧受力和整体结构，给出相应的约束条件，对四连杆振动装置和半板簧振动装置进行了优化分析。

In chapter 4, using general Riccati transformation and integral average technique: we first investigate the oscillation of a class of nonlinear differential equations under quite general assumptions. The results that we obtained generalize and improve some known oscillation criteria.

第四章利用推广的Riccati变换及积分平均技巧，首先，研究了一类二阶非线性微分方程在一般假设条件下的振动性，所得结果推广和改进了前人的相关结果。

While working, the whole ultrasonic oscillation transmission is in state of resonance, and does harmonic oscillation.

工作过程中的超声振动系统整体处于谐振状态，超声传递系统做简谐振动。

Vapor bubble oscillation and liquid column oscillation resonated together in the case of lower heat fluxes and deeper immersion depth of the heater. The bath temperature had a vital effect on the dominant frequency.

在较小热流密度和平板加热器处于浸入深度较大的时候，气泡的振动和恒温器中的液氦的振动形成共振；与此同时，氦浴温度对系统的特征频率有重要的影响。

The French are not suggesting a new EU treaty, but they have plenty of other wheezes.

法国人并不是在建议签署一个新的欧盟条约，但他们有许多其他的阴谋。

This letter was written by my brother.

这封信是我弟弟写的。