C. exciting generator is discovered in this thesis for the first time, which indicates a. c. exciting generator can be in stable asynchronized operation and gives a challenge to classic concept that an a.

為了進(jìn)一步分析異步化同步發(fā)電機(jī)的運(yùn)行特性久久国产99，本文系統(tǒng)地推導(dǎo)了異步化同步發(fā)電機(jī)電磁暫態(tài)過程和機(jī)電暫態(tài)過程的基本方程式一本久道在线无码。

The method of bang-bang control of a. c. exciting generator has been verified and the correct results are achived, which lays a foundation to apply a. c. exciting generator in industrial practical operation.

試驗(yàn)驗(yàn)證了異步化同步發(fā)電機(jī)魯棒控制方法的正確性和可行性av在线免费观看色涩网址，從而為異步化同步發(fā)電機(jī)工業(yè)實(shí)用化運(yùn)行奠定了基礎(chǔ)男人天堂黄片。

Results show that, the double side excitation method, compared with the traditional single side one, can inhibit the multi-mode characteristic of Lamb waves and generate fundamental symmetric and antisymmetric modes at the relatively low exciting frequency. It can heighten the exciting effect and make it easy to analyze monitoring signals.

研究結(jié)果表明：與傳統(tǒng)的單面激勵(lì)方法相比天天日天天干天天日天天，該激勵(lì)方法能夠抑制Lamb波的多模式特性欧美一级A片啪啪啪，在頻率較低的情況下可實(shí)現(xiàn)基本對(duì)稱或反對(duì)稱模式的產(chǎn)生，提高了Lamb波的激勵(lì)效果jiujiuren，便于監(jiān)測(cè)信號(hào)的分析网址av。

The linear vibration problems under periodic exciting force and general exciting force are numerical analysis by barycentric Lagrange interpolation collocation method.

利用重心Lagrange插值配點(diǎn)法分析了周期激勵(lì)和一般激勵(lì)下線性振動(dòng)問題。

Factory adjustable eccentric block and the fixed angle between the eccentric block of 0 °, then the exciting force for the vibration of the motor nominal excitation force F, the different angle between the exciting force when the table below, paying particular attention to , adjust the excitation force applied, to both ends of the vibrating motor with adjustable eccentric block to adjust in the same direction the same angle.

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Rebecca is not a beautiful woman who always pleases men, she is full of energy, courage, independence, calmness and decision. For the freedom of her desire and expectative of exciting life she even chooses to die under her wrathful husband's gun. She is like a flaming blaze burning her short, but exciting life.

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Rebecca在线看欧美性爱，她并不是取悅男性的漂亮女性欧美第一区在线，她充滿了活力，勇氣一级毛片不卡视频在线，獨(dú)立欧美嘿咻嘿咻视频免费观看，冷靜和決定，為了自由和她期待的精彩生活国产自产一区av，她甚至選擇了去死在她憤怒的丈夫的槍下亚洲第一调教福利视频，她像一簇閃爍的火焰燃燒了她短暫，但很精彩的生命国产自慰喷水福利。

The main causes of the vibration in pipeline system are in two respects : The first is the vibrant force of the medium acted on pipeline system,i.e.exciting signal,such as the vibrant force caused by the gas flow at the compressor ′ s inlet and outlet and at the ramified and nodel points as well as the action of pig passing through pipeline bridge,etc.;The second is the response to the exciting signal,which is relating to the characteristics of the pipeline system,i.e.the rigidity,support,quality and equipments of the system besides the waveform of the exciting signal.

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The parameters of the machine are measured by no-load test and short-circuit test. The relationship between the exciting current and corresponding air-gap voltage at the rated frequency is obtained, thus determining expressions for exciting inductance and exciting current in linear segment form. The equivalent circuits in a/30 reference frame are based on the parameters by above tests.

通過空載實(shí)驗(yàn)和短路實(shí)驗(yàn)對(duì)異步電機(jī)的參數(shù)進(jìn)行了測(cè)量久久精品无码一级毛片潮喷，由額定頻率下的空載實(shí)驗(yàn)測(cè)得不同激磁電流與相應(yīng)的氣隙電勢(shì)，給出了激磁電感與激磁電流的分段線性表達(dá)公式，為得到αβΟ坐標(biāo)系統(tǒng)下的等值電路奠定基礎(chǔ)_级黄色免费网站。

In addition, the excited probabilities of lower exciting states are far off bigger than ones of higher exciting states. The higher exciting states are, the bigger probabilities of big angle scatterings are.

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