查询词典 damping-off

The analysis results show that PAPF is effective for parallel resonance damping, but can not damp series resonance when capacitor current is not included in the detecting current. And when capacitor current is included in the detecting current, PAPF is prone to be unstable and can not damp parallel and series resonance.

分析表明，由于无功补偿电容器的影响，传统控制策略下的PAPF对系统谐振的抑制效果不理想，同时当检测的负载电流中包括无功补偿电容器电流时，系统还有可能出现不稳定的现象。

Then a novel control method of PAPF is proposed. PAPF with the proposed control method has excellent performance in damping of both parallel resonance and series resonance, whether the capacitor current is included in the detecting current of PAPF or not. Also the PAPF with proposed method has strong ability in harmonic compensation.

针对这种情况该文提出了一种新的PAPF控制策略，该控制策略可以在进行谐波治理的同时有效抑制负载谐波电流或者系统谐波电压造成的并联电容器与电网阻抗之间的谐振。

At last, with this finite element model, this dissertation gave a relatively complete analysis to the lateral seismic nonlinear dynamic responses of the single pile, and analyzed the pile head's response spectrum, earthquake Fouriers spectrum, then a test parametric sensitivity analysis was taken into consideration, including modulus ratio of pile to soil, soil material damping ratio, earthquake input level.

第二，利用该有限元模型，较为全面地研究了地震荷载作用下的单桩横向非线性动力响应，分析了桩头反应谱、地震波傅里叶谱等，进行了桩土弹性模量比、土体材料阻尼比、地震动输入水平等因素对单桩横向非线性动力响应的参数敏感性分析。

At last, the MC method,PPEM, and the frequency transfer function perturbation method have been used to analyze the effect of structural random damping onstructural displacement.

在论文的最后，利用Monte Carlo法、摄动虚拟激励法、频域传递函数摄动法研究结构随机阻尼对结构位移响应的影响。

Compared with PID controller, PIDA algorithm can provide more phase lead, more damping and system stability, but it cause big controller's output.

该算法提供了更大的超前相角，改善了系统阻尼特性和稳定性，但造成控制量过大。

According to the invention, the damping device consists of a plurality of separate individual dampers which are arranged with their elastomer and intermediate layers in the direction of the main bending plane of the support beam.

据发明，减振装置构成的多元化的单独的个人阻尼器，其中安排与他们的弹性体和中间层的方向，主要弯曲平面的支持束。

Theoretical and experimental analysis of damping fish plate at rail joint

采用阻尼合金减震防噪，具有结构简便、体积小、轻量化等优点。

Many experiments of BBD on platelike structure's vibration control are carried out, the effect laws of form and position of BBD on damping efficiency are obtained, which can be as an useful reference for application of BBD in engineering.

对工程中常用的板结构进行了大量的BBD减振试验，得到了BBD的布置形式和布置位置对其减振效果的影响规律，为BBD的工程应用提供了可靠的依据。

Using a RF antenna,around outside a glass or a quartz tube,which is resonant with the right hand polarized wave propagating in a magnetized plasma,very high density plasma may be produced by Landau damping mechanism.

利用一种环绕于玻璃管或石英管外壁的射频天线与磁化等离子体中的右旋极化波的共振，可以非常有效地通过朗道吸收加热电子，产生高密度等离子体。

The dynamic mechanical property of polyurethane damping material has been studied.

研究了聚氨酯阻尼材料的动态力学性能。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。