查询词典 harmonic

According to the summation Fourier series of three kinds of methods, the relationships among the harmonic performance, vertical offsets and modulation index are obtained in the paper.

根据线电压的谐波分量理论表达式，获得了载波之间竖直方向的交叠量、幅值调制度和多电平逆变器谐波性能指标之间的规律。

3 Superharmonic resonance of wire subjected to harmonic excitation in temperature field is studied.

研究输电线在温度场中谐扰力作用下的3次超谐共振问题，应用动力学方法建立温度场中受谐扰力作用输电线的非线性振动。

What's more, this solution technique is available to obtain the potential subharmonic resonance and it overcame difficulties of traditional analytic Harmonic Balance Method based on the describing functions in resolving superharmonic and subharmonic response.

克服了传统的解析谐波平衡法基于描述函数进行而难以求解一般周期响应和次谐波响应的缺点。

Moreover, the harmonic balance method is adopted in this approach to determine the steady-state responses comprising the synchronous and superharmonic whirls.

所发展之分析方法，运用harmonic balance method之技巧，藉以分析，由同步涡旋及其他倍频涡旋所构成之稳态响应。

The most important thing to remember when looking at these harmonic distortion sweeps is how the drivers will be used.

最重要的事情时要记住这些谐波失真彩票是怎样看的司机将被使用。

This is the primary reason I choose sweeps for harmonic distortion testing.

这是主要的原因，我选择谐波失真测试扫荡。

It is the harmonic family life make me optimistic, gentle and sweet-tempered disposition.

我平时很喜欢装饰家里，做家务也是井井有条。英语熟练，计算机操作熟练。

Which indicates when the harmonic vibration is equal to the inherent frequencies the displacement became maximum value, it represent the structure occurs sympathetic vibration.

当施加在管道结构上激励的频率和管道结构的固有频率相近时，管道结构系统将发生共振。

With sympathetic vibration demodulation of the vibration signal of the low-speed, high-load bearing which is realized by means of generalized harmonic wavelet transformation, the impact information of faulty hearing is extracted, which promises a new and effective method for the fault diagnosis of the bearing.

通过广义谐波小波变换实现低速重载轴承振动信号的共振解调，从而提取出故障轴承的低频冲击信息，为低速重载轴承的故障诊断提供了一种新的有效方法。

Because the portal frame is also used in the rig for bogie fatigue strength testing, in which the imposed load is harmonic, the modal analysis is necessary. The fundamental vibration mode shapes and corresponding frequencies are calculated to validating that the natural frequencies of the structure have enough difference comparing to the load frequency, so sympathetic vibration can be avoided.

由于龙门架还要在疲劳试验台中用来进行转向架的疲劳试验，因此对龙门架进行了模态分析，计算龙门架结构的固有频率和振型，确保龙门架的固有频率远离转向架疲劳试验的加载频率，避免在试验中发生共振。

I'm going tor her!

我这就去救她！

As rise are design to help keep a several toney , a brain chemical at continues lever.

SSRI被设计来帮助保持血液中的复合胺即在大脑中一个连续水平的化学物质。