查询词典 oscillation theorem

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。

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。

A method to analyze the dynamics of piecewise continuous system is presented, based on it, the chaotic oscillation of a harmonically forced spring-mass system with friction is studied. The impact of friction and other parameters on the chaotic oscillation of this system is analyzed.

分析了系统参数和摩擦模型对系统混沌行为的影响；发现了摩擦模型的选取对系统动力学行为分析的重要性；揭示出在一定条件下，系统参数、环境条件或润滑条件的改变都有可能使系统进入无序的混沌运动状态。

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。

In this paper, the author investigate the oscillation of a class of second-order linear differential equation s with impulses, revealing the relation between this and the non linear differential equation s with impulses in Oscillation.

摘要研究一类二阶线性脉冲微分方程解的振动性，揭示了此类方程与相应的非脉冲方程在振动性方面的联系。

In the third part of the paper, another novel technology, named as Mould Oscillation-less Electromagnetic Continuous Casting under AMMF was proposed in order to replace the huge mechanical mould oscillation system by AMMF imposing outside the mould in continuous casting.

进行了三种波形高频调幅磁场下的无结晶器振动电磁连铸初步实验研究，实验结果表明：在方波、三角波和正弦波调幅磁场作用下的无结晶器振动电磁连铸过程中，当调制波频率略低于系统固有频率时，弯月面与结晶器壁间断接触距离最大。

Low frequency oscillation resonance mechanism of two-machine system was established in this paper. The relations between natural oscillation frequency and damping of two-machine system were analyzed.

理论推导了两机互联系统的共振机理，分析了两机互联系统固有频率与阻尼的关系。

I want to be a big fish in a small pond.

我要做一条在小池塘里的大鱼。

While the software functioned well, we did not feel the same about their customer support!

虽然该软件运行良好，我们没有同样的感觉他们的客户支持！